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<h1>contrib/malete/mlt/core.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> The Malete project - the Z39.2/Z39.50 database framework of OpenIsis.</span>
<a name="l00003"></a>00003 <span class="comment"> Version 0.9.x (patchlevel see file Version)</span>
<a name="l00004"></a>00004 <span class="comment"> Copyright (C) 2001-2003 by Erik Grziwotz, erik@openisis.org</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment"> This library is free software; you can redistribute it and/or</span>
<a name="l00007"></a>00007 <span class="comment"> modify it under the terms of the GNU Lesser General Public</span>
<a name="l00008"></a>00008 <span class="comment"> License as published by the Free Software Foundation; either</span>
<a name="l00009"></a>00009 <span class="comment"> version 2.1 of the License, or (at your option) any later version.</span>
<a name="l00010"></a>00010 <span class="comment"></span>
<a name="l00011"></a>00011 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
<a name="l00012"></a>00012 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00013"></a>00013 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.</span>
<a name="l00014"></a>00014 <span class="comment"> See the GNU Lesser General Public License for more details.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment"> You should have received a copy of the GNU Lesser General Public</span>
<a name="l00017"></a>00017 <span class="comment"> License along with this library; if not, write to the Free Software</span>
<a name="l00018"></a>00018 <span class="comment"> Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<a name="l00019"></a>00019 <span class="comment"></span>
<a name="l00020"></a>00020 <span class="comment"> see README for more information</span>
<a name="l00021"></a>00021 <span class="comment">EOH */</span>
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef CORE_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <string.h></span> <span class="comment">/* various str* and mem* */</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="comment">/*</span>
<a name="l00027"></a>00027 <span class="comment"> $Id: core.h,v 1.4 2005/05/29 10:30:36 kripke Exp $</span>
<a name="l00028"></a>00028 <span class="comment"> full interface of the Malete core</span>
<a name="l00029"></a>00029 <span class="comment">*/</span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#define CORE_VERSION "1.0.3"</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span>
<a name="l00033"></a>00033
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="comment">/* ****************************************************************** */</span>
<a name="l00036"></a>00036 <span class="comment">/* */</span>
<a name="l00037"></a>00037 <span class="comment">/* COMPILER FEATURES */</span>
<a name="l00038"></a>00038 <span class="comment">/* */</span>
<a name="l00039"></a>00039 <span class="comment">/* ****************************************************************** */</span>
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="preprocessor">#ifndef __STDC__ </span><span class="comment">/* defined by ISO C */</span>
<a name="l00042"></a>00042 <span class="preprocessor">#error "need ANSI/ISO C compiler"</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="comment">/* "cpp -dM </dev/null" lists nonstandard machine and OS macros */</span>
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="comment">/* optimizing */</span>
<a name="l00047"></a>00047 <span class="preprocessor">#ifdef __GNUC__</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor"># define OPT_INLINE __inline__ </span><span class="comment">/* OPT_INLINE type func () */</span>
<a name="l00049"></a>00049 <span class="preprocessor">#else</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="preprocessor"># define OPT_INLINE</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span><span class="preprocessor">#if defined( __i386__ ) && defined( __GNUC__ )</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span><span class="comment">/* called function pops args; makes most functions slightly faster */</span>
<a name="l00054"></a>00054 <span class="comment">/* type OPT_STDCALL func () on both declaration and definition */</span>
<a name="l00055"></a>00055 <span class="preprocessor"># define OPT_STDCALL __attribute__((stdcall))</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span><span class="preprocessor"># define OPT_STDCALL</span>
<a name="l00058"></a>00058 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00059"></a>00059 <span class="preprocessor"></span><span class="preprocessor">#if defined( __i386__ ) && defined( __GNUC__ ) && defined(NDEBUG)</span>
<a name="l00060"></a>00060 <span class="preprocessor"></span><span class="comment">/* more aggressive: up to 3 args in registers, fails with -pg */</span>
<a name="l00061"></a>00061 <span class="comment">/* type OPT_REGPARM func () in declaration is sufficient */</span>
<a name="l00062"></a>00062 <span class="comment">/* also using in definition allows fallback to stdcall */</span>
<a name="l00063"></a>00063 <span class="preprocessor"># define OPT_REGPARM __attribute__((regparm(3)))</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span><span class="preprocessor"># define OPT_REGPARM OPT_STDCALL</span>
<a name="l00066"></a>00066 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span>
<a name="l00068"></a>00068 <span class="comment">/* CPU features */</span>
<a name="l00069"></a>00069 <span class="preprocessor">#if defined( __sparc__ ) || defined( __ppc__ )</span>
<a name="l00070"></a>00070 <span class="preprocessor"></span><span class="preprocessor"># define CPU_BIG_ENDIAN</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00072"></a>00072 <span class="preprocessor"></span><span class="preprocessor">#if defined( __sparc__ )</span>
<a name="l00073"></a>00073 <span class="preprocessor"></span><span class="preprocessor"># define CPU_NEED_ALIGN</span>
<a name="l00074"></a>00074 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span><span class="comment">/* max bits of PAGE_SIZE; min is always 12 */</span>
<a name="l00076"></a>00076 <span class="comment">/* grep -r 'fine PAGE_SHIFT' /usr/src/linux/include/asm-* : 12..16 */</span>
<a name="l00077"></a>00077 <span class="preprocessor">#if defined( __ia64__ )</span>
<a name="l00078"></a>00078 <span class="preprocessor"></span><span class="preprocessor"># define CPU_PAGE_SHIFT 16</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span><span class="preprocessor">#elif defined( __arm__ )</span>
<a name="l00080"></a>00080 <span class="preprocessor"></span><span class="preprocessor"># define CPU_PAGE_SHIFT 15</span>
<a name="l00081"></a>00081 <span class="preprocessor"></span><span class="preprocessor">#elif defined( __i386__ ) || defined( __ppc__ )</span>
<a name="l00082"></a>00082 <span class="preprocessor"></span><span class="preprocessor"># define CPU_PAGE_SHIFT 12 </span><span class="comment">/* there are more not exceeding 12 bits */</span>
<a name="l00083"></a>00083 <span class="preprocessor">#else </span><span class="comment">/* however 13 bits is not too much waste */</span>
<a name="l00084"></a>00084 <span class="preprocessor"># define CPU_PAGE_SHIFT 13 </span><span class="comment">/* sparc, sparc64, alpha, m68k, cris */</span>
<a name="l00085"></a>00085 <span class="preprocessor">#endif</span>
<a name="l00086"></a>00086 <span class="preprocessor"></span>
<a name="l00087"></a>00087 <span class="comment">/* 64 bit integer */</span>
<a name="l00088"></a>00088 <span class="preprocessor">#ifdef __GNUC__</span>
<a name="l00089"></a>00089 <span class="preprocessor"></span><span class="preprocessor"># define LOLO_BUILTIN long long</span>
<a name="l00090"></a>00090 <span class="preprocessor"></span><span class="preprocessor"># define LOLO( v ) v##LL</span>
<a name="l00091"></a>00091 <span class="preprocessor"></span><span class="preprocessor"># define LULU( v ) v##ULL</span>
<a name="l00092"></a>00092 <span class="preprocessor"></span><span class="preprocessor">#elif defined( _MSC_VER ) || defined( __BORLANDC__ )</span>
<a name="l00093"></a>00093 <span class="preprocessor"></span><span class="preprocessor"># define LOLO_BUILTIN __int64</span>
<a name="l00094"></a>00094 <span class="preprocessor"></span><span class="preprocessor"># define LOLO( v ) v </span><span class="comment">/* is there some special suffix ??? */</span>
<a name="l00095"></a>00095 <span class="preprocessor"># define LULU( v ) v</span>
<a name="l00096"></a>00096 <span class="preprocessor"></span><span class="preprocessor">#elif 0xFFFFFFFFL != ~0L </span><span class="comment">/* 64 bit compiler ? */</span>
<a name="l00097"></a>00097 <span class="preprocessor"># define LOLO_BUILTIN long</span>
<a name="l00098"></a>00098 <span class="preprocessor"></span><span class="preprocessor"># define LOLO( v ) v##L</span>
<a name="l00099"></a>00099 <span class="preprocessor"></span><span class="preprocessor"># define LULU( v ) v##UL</span>
<a name="l00100"></a>00100 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00101"></a>00101 <span class="preprocessor"></span><span class="preprocessor"># error "please use a compiler providing a 64 bit integer type. thanks."</span>
<a name="l00102"></a>00102 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00103"></a>00103 <span class="preprocessor"></span><span class="keyword">typedef</span> LOLO_BUILTIN lolo;
<a name="l00104"></a>00104 <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> LOLO_BUILTIN lulu;
<a name="l00105"></a>00105
<a name="l00106"></a>00106
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="comment">/* ****************************************************************** */</span>
<a name="l00109"></a>00109 <span class="comment">/* */</span>
<a name="l00110"></a>00110 <span class="comment">/* BUILD FEATURES */</span>
<a name="l00111"></a>00111 <span class="comment">/* */</span>
<a name="l00112"></a>00112 <span class="comment">/* ****************************************************************** */</span>
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="comment">/* do not support the ENV_SHARED mode */</span>
<a name="l00115"></a>00115 <span class="preprocessor">#if defined(BUILD_SHMODE) </span><span class="comment">/* is broken */</span>
<a name="l00116"></a>00116 <span class="preprocessor"># undef BUILD_SHMODE</span>
<a name="l00117"></a>00117 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00118"></a>00118 <span class="preprocessor"></span>
<a name="l00119"></a>00119
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="comment">/* ****************************************************************** */</span>
<a name="l00122"></a>00122 <span class="comment">/* */</span>
<a name="l00123"></a>00123 <span class="comment">/* DATA STRUCTURES AND UTILITIES */</span>
<a name="l00124"></a>00124 <span class="comment">/* */</span>
<a name="l00125"></a>00125 <span class="comment">/* ****************************************************************** */</span>
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="comment">/* some characters */</span>
<a name="l00128"></a>00128 <span class="preprocessor">#define TAB 9 </span><span class="comment">/* horizontal, that is */</span>
<a name="l00129"></a>00129 <span class="preprocessor">#define LF 10 </span><span class="comment">/* LineFeed a.k.a. newline - '\n' isn't really well defined */</span>
<a name="l00130"></a>00130 <span class="preprocessor">#define VT 11 </span><span class="comment">/* vertical, used as newline replacement */</span>
<a name="l00131"></a>00131 <span class="preprocessor">#define CR 13 </span><span class="comment">/* for windoze, telnet and the like */</span>
<a name="l00132"></a>00132
<a name="l00137"></a>00137 <span class="keyword">extern</span> <span class="keywordtype">int</span> a2i ( <span class="keyword">const</span> <span class="keywordtype">char</span> *p, <span class="keywordtype">int</span> l );
<a name="l00142"></a>00142 <span class="keyword">extern</span> <span class="keywordtype">int</span> a2il ( <span class="keyword">const</span> <span class="keywordtype">char</span> *p, <span class="keywordtype">int</span> l, <span class="keywordtype">int</span> *res );
<a name="l00146"></a>00146 <span class="keyword">extern</span> <span class="keywordtype">int</span> a2id ( <span class="keyword">const</span> <span class="keywordtype">char</span> *p, <span class="keywordtype">int</span> l, <span class="keywordtype">int</span> dflt );
<a name="l00151"></a>00151 <span class="keyword">extern</span> <span class="keywordtype">int</span> i2a ( <span class="keywordtype">char</span> *p, <span class="keywordtype">int</span> i );
<a name="l00152"></a>00152 <span class="keyword">extern</span> <span class="keywordtype">int</span> u2a ( <span class="keywordtype">char</span> *p, <span class="keywordtype">unsigned</span> u );
<a name="l00153"></a>00153 <span class="comment">/* print exactly n digits, do not add 0 byte */</span>
<a name="l00154"></a>00154 <span class="keyword">extern</span> <span class="keywordtype">void</span> u2a0 ( <span class="keywordtype">char</span> *p, <span class="keywordtype">unsigned</span> u, <span class="keywordtype">unsigned</span> n );
<a name="l00155"></a>00155
<a name="l00156"></a>00156 <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">char</span> b36dig[36]; <span class="comment">/* '0'..'9', 'a'..'z' */</span>
<a name="l00157"></a>00157 <span class="comment">/* 0..35 '0'..'9', 'a'..'z' and 'A'..'Z', 36 else */</span>
<a name="l00158"></a>00158 <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">char</span> b36val[256];
<a name="l00159"></a>00159
<a name="l00160"></a>00160 <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> lat1up[256]; <span class="comment">/* latin 1 uppercase */</span>
<a name="l00161"></a>00161 <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> lat1ct[256]; <span class="comment">/* latin 1 ctype */</span>
<a name="l00162"></a>00162 <span class="keyword">enum</span> { <span class="comment">/* character type bits */</span>
<a name="l00163"></a>00163 CT_WHITE = 0x01, <span class="comment">/* all <= ' ' */</span>
<a name="l00164"></a>00164 CT_DIGIT = 0x02, <span class="comment">/* 0..9 */</span>
<a name="l00165"></a>00165 CT_ALPHA = 0x04, <span class="comment">/* 'A'..'Z','a'..'z' */</span>
<a name="l00166"></a>00166 CT_IDENT = 0x08, <span class="comment">/* digits,alphas,underscore */</span>
<a name="l00167"></a>00167 CT_SPECL = 0x10, <span class="comment">/* all other ASCIIs */</span>
<a name="l00168"></a>00168 CT_LATIN = 0x20 <span class="comment">/* ident + non ASCII Latin1 alphas */</span>
<a name="l00169"></a>00169 };
<a name="l00170"></a>00170 <span class="keyword">enum</span> { <span class="comment">/* character type values */</span>
<a name="l00171"></a>00171 CT_W = CT_WHITE,
<a name="l00172"></a>00172 CT_D = CT_DIGIT|CT_IDENT|CT_LATIN,
<a name="l00173"></a>00173 CT_A = CT_ALPHA|CT_IDENT|CT_LATIN,
<a name="l00174"></a>00174 CT_I = CT_IDENT|CT_LATIN,
<a name="l00175"></a>00175 CT_S = CT_SPECL,
<a name="l00176"></a>00176 CT_L = CT_LATIN,
<a name="l00177"></a>00177 CT_N = 0 <span class="comment">/* other C1 control or symbol */</span>
<a name="l00178"></a>00178 };
<a name="l00179"></a>00179 <span class="preprocessor">#define CT_IS(type, c) (CT_##type == lat1ct[(unsigned char)(c)])</span>
<a name="l00180"></a>00180 <span class="preprocessor"></span><span class="preprocessor">#define CT_HAS(flg, c) (CT_##flg & lat1ct[(unsigned char)(c)])</span>
<a name="l00181"></a>00181 <span class="preprocessor"></span>
<a name="l00182"></a>00182
<a name="l00184"></a>00184 <span class="keyword">extern</span> <span class="keywordtype">void</span> mTr ( <span class="keywordtype">char</span> *bytes, <span class="keywordtype">char</span> from, <span class="keywordtype">char</span> to, <span class="keywordtype">int</span> len );
<a name="l00185"></a>00185
<a name="l00186"></a>00186
<a name="l00187"></a><a class="code" href="structFld.html">00187</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structFld.html">Fld</a> {
<a name="l00188"></a>00188 <span class="keywordtype">int</span> tag;
<a name="l00189"></a>00189 <span class="keywordtype">unsigned</span> len; <span class="comment">/* must use at most 31 bits, highest is temporarily abused */</span>
<a name="l00190"></a>00190 <span class="keywordtype">char</span> *val; <span class="comment">/* not necessarily 0 terminated */</span>
<a name="l00191"></a>00191 } <a class="code" href="structFld.html">Fld</a>;
<a name="l00192"></a>00192
<a name="l00193"></a>00193 <span class="comment">/*</span>
<a name="l00194"></a>00194 <span class="comment"> v (value) functions on single field</span>
<a name="l00195"></a>00195 <span class="comment">*/</span>
<a name="l00196"></a>00196 <span class="preprocessor">#define V2I( f ) a2i( (f)->val, (f)->len )</span>
<a name="l00197"></a>00197 <span class="preprocessor"></span>
<a name="l00198"></a>00198 <span class="comment">/* field has primary value key length l */</span>
<a name="l00199"></a>00199 <span class="preprocessor">#define VKEY( f, k, l ) ( \</span>
<a name="l00200"></a>00200 <span class="preprocessor"> (f)->len >= (l) && !memcmp( (f)->val, k, l ) \</span>
<a name="l00201"></a>00201 <span class="preprocessor"> && ((f)->len == (l) || TAB == (f)->val[(l)]) \</span>
<a name="l00202"></a>00202 <span class="preprocessor">)</span>
<a name="l00203"></a>00203 <span class="preprocessor"></span>
<a name="l00204"></a>00204 <span class="comment">/* dup a field as 0-terminated string */</span>
<a name="l00205"></a>00205 <span class="preprocessor">#define VDUPZ( f ) ((char*)mDupz((f)->val, (f)->len))</span>
<a name="l00206"></a>00206 <span class="preprocessor"></span>
<a name="l00207"></a>00207 <span class="comment">/*</span>
<a name="l00208"></a>00208 <span class="comment"> snip tab-separated subfields from value,</span>
<a name="l00209"></a>00209 <span class="comment"> setting tag to the subfield identifier and len/val to the contents.</span>
<a name="l00210"></a>00210 <span class="comment"> if opt is not 0, it lists the options wanted (* for the primary).</span>
<a name="l00211"></a>00211 <span class="comment"> dst->val should be 0-initialized;</span>
<a name="l00212"></a>00212 <span class="comment"> if it's greater than src->val, search starts at dst->val+dst->len,</span>
<a name="l00213"></a>00213 <span class="comment"> @return 0 if not found, else 1+dst->len</span>
<a name="l00214"></a>00214 <span class="comment">*/</span>
<a name="l00215"></a>00215 <span class="keyword">extern</span> <span class="keywordtype">int</span> vGet ( <a class="code" href="structFld.html">Fld</a> *dst, <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *src, <span class="keyword">const</span> <span class="keywordtype">char</span> *opt );
<a name="l00216"></a>00216 <span class="comment">/*</span>
<a name="l00217"></a>00217 <span class="comment"> access to the primary value never fails, if initialized, so return len</span>
<a name="l00218"></a>00218 <span class="comment">*/</span>
<a name="l00219"></a>00219 <span class="preprocessor">#define VPRI( dst, src ) ((dst)->val = 0, vGet(dst, src, 0), (dst)->len)</span>
<a name="l00220"></a>00220 <span class="preprocessor"></span><span class="preprocessor">#define VEQZ( f, str ) (!strncmp((f)->val,str,(f)->len) && !str[(f)->len])</span>
<a name="l00221"></a>00221 <span class="preprocessor"></span>
<a name="l00228"></a>00228 <span class="comment">/* sign(a - b) */</span>
<a name="l00229"></a>00229 <span class="keyword">extern</span> <span class="keywordtype">int</span> vCmp ( <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *a, <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *b );
<a name="l00230"></a>00230 <span class="comment">/* a > b */</span>
<a name="l00231"></a>00231 <span class="keyword">extern</span> <span class="keywordtype">int</span> vGt ( <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *a, <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *b );
<a name="l00232"></a>00232
<a name="l00233"></a>00233 <span class="comment">/* comparision function type for rSort */</span>
<a name="l00234"></a>00234 <span class="keyword">typedef</span> <span class="keywordtype">int</span> VGt ( <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *a, <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *b );
<a name="l00235"></a>00235
<a name="l00236"></a>00236
<a name="l00237"></a>00237 <span class="comment">/*</span>
<a name="l00238"></a>00238 <span class="comment"> r (record) functions on an array of fields</span>
<a name="l00239"></a>00239 <span class="comment"> they expect the tag of the first field to be the negative number of fields.</span>
<a name="l00240"></a>00240 <span class="comment"> The value of the first field ("header") may contain various meta info.</span>
<a name="l00241"></a>00241 <span class="comment"> For lists representing database "records",</span>
<a name="l00242"></a>00242 <span class="comment"> the canonical format is [no[@pos]][<TAB>leader].</span>
<a name="l00243"></a>00243 <span class="comment"> Leader can be used e.g. to hold a Z39.2 leader as used by MARC.</span>
<a name="l00244"></a>00244 <span class="comment"> Other (protocol) lists should start with some type identifier.</span>
<a name="l00245"></a>00245 <span class="comment"></span>
<a name="l00246"></a>00246 <span class="comment"> it's a matter of taste whether you like and use this typedef.</span>
<a name="l00247"></a>00247 <span class="comment"> as it's not going to be changed but only here to clarify the intend,</span>
<a name="l00248"></a>00248 <span class="comment"> the core functions do not use it.</span>
<a name="l00249"></a>00249 <span class="comment">*/</span>
<a name="l00250"></a>00250 <span class="keyword">typedef</span> <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *<a class="code" href="structFld.html">Rec</a>;
<a name="l00251"></a>00251
<a name="l00252"></a>00252 <span class="preprocessor">#define RLEN( r ) (-(r)->tag)</span>
<a name="l00253"></a>00253 <span class="preprocessor"></span><span class="preprocessor">#define REND( r ) ((r)-(r)->tag)</span>
<a name="l00254"></a>00254 <span class="preprocessor"></span><span class="preprocessor">#define RLAST( r ) (REND(r)-1)</span>
<a name="l00255"></a>00255 <span class="preprocessor"></span>
<a name="l00256"></a>00256 <span class="keyword">extern</span> <span class="keywordtype">unsigned</span> rSiz ( <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *r );
<a name="l00257"></a>00257
<a name="l00265"></a>00265 <span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *rGet ( <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *r, <span class="keywordtype">int</span> tag, <span class="keywordtype">int</span> *pos );
<a name="l00266"></a>00266
<a name="l00267"></a>00267 <span class="comment">/*</span>
<a name="l00268"></a>00268 <span class="comment"> get field with given tag and primary value or empty pv</span>
<a name="l00269"></a>00269 <span class="comment">*/</span>
<a name="l00270"></a>00270 <span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *rKey ( <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *r, <span class="keywordtype">int</span> tag, <span class="keyword">const</span> <span class="keywordtype">char</span> *key );
<a name="l00271"></a>00271
<a name="l00272"></a>00272 <span class="comment">/*</span>
<a name="l00273"></a>00273 <span class="comment"> create a new const rec in a contigous mAlloced piece of mem</span>
<a name="l00274"></a>00274 <span class="comment"> if siz is 0, rSiz() is used</span>
<a name="l00275"></a>00275 <span class="comment">*/</span>
<a name="l00276"></a>00276 <span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *rDup ( <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *src, <span class="keywordtype">unsigned</span> siz );
<a name="l00277"></a>00277
<a name="l00278"></a>00278
<a name="l00286"></a>00286 <span class="keyword">extern</span> <span class="keywordtype">int</span> rSer ( <span class="keywordtype">char</span> *buf, <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *rec );
<a name="l00287"></a>00287
<a name="l00293"></a>00293 <span class="keyword">extern</span> <span class="keywordtype">void</span> rSort ( <a class="code" href="structFld.html">Fld</a> *rec, VGt *gt );
<a name="l00294"></a>00294 <span class="keyword">extern</span> <span class="keywordtype">void</span> rSortTag ( <a class="code" href="structFld.html">Fld</a> *rec );
<a name="l00295"></a>00295 <span class="keyword">extern</span> <span class="keywordtype">void</span> rSortVal ( <a class="code" href="structFld.html">Fld</a> *rec ); <span class="comment">/* == rSort(vGt) */</span>
<a name="l00296"></a>00296
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="preprocessor">#define DEFBLKLEN 8000 </span><span class="comment">/* default buffer block length */</span>
<a name="l00299"></a>00299 <span class="preprocessor">#define DEFFIELDS 40 </span><span class="comment">/* default number of fields */</span>
<a name="l00300"></a>00300
<a name="l00301"></a><a class="code" href="structLBlk.html">00301</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structLBlk.html">LBlk</a> { <span class="comment">/* chained buffer block */</span>
<a name="l00302"></a>00302 <span class="keyword">struct </span><a class="code" href="structLBlk.html">LBlk</a> *nxt;
<a name="l00303"></a>00303 <span class="keywordtype">unsigned</span> siz;
<a name="l00304"></a>00304 <span class="keywordtype">char</span> byt[DEFBLKLEN]; <span class="comment">/* actual len may vary */</span>
<a name="l00305"></a>00305 } <a class="code" href="structLBlk.html">LBlk</a>;
<a name="l00306"></a>00306
<a name="l00307"></a>00307
<a name="l00308"></a>00308 <span class="comment">/*</span>
<a name="l00309"></a>00309 <span class="comment"> A full-fledged, modifiable list.</span>
<a name="l00310"></a>00310 <span class="comment">*/</span>
<a name="l00311"></a><a class="code" href="structList.html">00311</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structList.html">List</a> {
<a name="l00312"></a>00312 <a class="code" href="structFld.html">Fld</a> *fld; <span class="comment">/* fields list, initially fl0 */</span>
<a name="l00313"></a>00313 <span class="keywordtype">unsigned</span> fav; <span class="comment">/* fields available at end of *fld buffer */</span>
<a name="l00314"></a>00314 <span class="keywordtype">int</span> siz; <span class="comment">/* used secondary buffer size minus holes (add buf-blk.byt) */</span>
<a name="l00315"></a>00315 <span class="keywordtype">char</span> *buf; <span class="comment">/* pointing into blk->byt */</span>
<a name="l00316"></a>00316 <span class="keywordtype">char</span> *end; <span class="comment">/* of blk->byt */</span>
<a name="l00317"></a>00317 <a class="code" href="structLBlk.html">LBlk</a> *blk; <span class="comment">/* buffer chain, initially bl0 */</span>
<a name="l00318"></a>00318 <span class="keywordtype">char</span> *bok; <span class="comment">/* if == buf, buffers contain the serialization */</span>
<a name="l00319"></a>00319 <a class="code" href="structFld.html">Fld</a> fl0[DEFFIELDS];
<a name="l00320"></a>00320 <a class="code" href="structLBlk.html">LBlk</a> bl0;
<a name="l00321"></a>00321 } <a class="code" href="structList.html">List</a>;
<a name="l00322"></a>00322
<a name="l00323"></a>00323
<a name="l00324"></a>00324 <span class="preprocessor">#define LLEN( l ) RLEN((l)->fld)</span>
<a name="l00325"></a>00325 <span class="preprocessor"></span><span class="preprocessor">#define LEND( l ) REND((l)->fld)</span>
<a name="l00326"></a>00326 <span class="preprocessor"></span><span class="preprocessor">#define LLAST( l ) RLAST((l)->fld)</span>
<a name="l00327"></a>00327 <span class="preprocessor"></span>
<a name="l00328"></a>00328
<a name="l00329"></a>00329 <span class="comment">/*</span>
<a name="l00330"></a>00330 <span class="comment"> initialize list and set header.</span>
<a name="l00331"></a>00331 <span class="comment"> if fmt is 0, no header is printed, and the list left empty.</span>
<a name="l00332"></a>00332 <span class="comment"> (i.e. the first field added will become the header).</span>
<a name="l00333"></a>00333 <span class="comment"> @return l</span>
<a name="l00334"></a>00334 <span class="comment">*/</span>
<a name="l00335"></a>00335 <span class="keyword">extern</span> <a class="code" href="structList.html">List</a> *lInit ( <a class="code" href="structList.html">List</a> *l, <span class="keyword">const</span> <span class="keywordtype">char</span> *fmt, ... );
<a name="l00336"></a>00336 <span class="comment">/*</span>
<a name="l00337"></a>00337 <span class="comment"> completely clear all fields and buffers.</span>
<a name="l00338"></a>00338 <span class="comment">*/</span>
<a name="l00339"></a>00339 <span class="keyword">extern</span> <a class="code" href="structList.html">List</a> *lClr ( <a class="code" href="structList.html">List</a> *l );
<a name="l00340"></a>00340 <span class="comment">/*</span>
<a name="l00341"></a>00341 <span class="comment"> clear all fields and buffers, but keep the header.</span>
<a name="l00342"></a>00342 <span class="comment">*/</span>
<a name="l00343"></a>00343 <span class="keyword">extern</span> <a class="code" href="structList.html">List</a> *lReset ( <a class="code" href="structList.html">List</a> *l );
<a name="l00344"></a>00344 <span class="comment">/*</span>
<a name="l00345"></a>00345 <span class="comment"> clear all fields and buffers, keep nothing</span>
<a name="l00346"></a>00346 <span class="comment">*/</span>
<a name="l00347"></a>00347 <span class="keyword">extern</span> <span class="keywordtype">void</span> OPT_STDCALL lFini ( <a class="code" href="structList.html">List</a> *l );
<a name="l00348"></a>00348
<a name="l00349"></a>00349 <span class="comment">/*</span>
<a name="l00350"></a>00350 <span class="comment"> increase available space.</span>
<a name="l00351"></a>00351 <span class="comment"> If buffer has a flusher, call it.</span>
<a name="l00352"></a>00352 <span class="comment"> fields -1 means we want to append (keep last field contigous, do NOT flush).</span>
<a name="l00353"></a>00353 <span class="comment"> fields >0 means reserve at least mode fields.</span>
<a name="l00354"></a>00354 <span class="comment">*/</span>
<a name="l00355"></a>00355 <span class="keyword">extern</span> <span class="keywordtype">int</span> OPT_REGPARM lExtend ( <a class="code" href="structList.html">List</a> *l, <span class="keywordtype">unsigned</span> need, <span class="keywordtype">int</span> fields );
<a name="l00356"></a>00356
<a name="l00357"></a>00357
<a name="l00358"></a>00358
<a name="l00359"></a>00359 <span class="comment">/* bytes available at buf */</span>
<a name="l00360"></a>00360 <span class="preprocessor">#define LAVL( l ) ((unsigned)((l)->end - (l)->buf))</span>
<a name="l00361"></a>00361 <span class="preprocessor"></span><span class="preprocessor">#define LSIZ( l ) ((unsigned)((l)->buf - (l)->blk->byt + (l)->siz))</span>
<a name="l00362"></a>00362 <span class="preprocessor"></span>
<a name="l00363"></a>00363 <span class="comment">/*</span>
<a name="l00364"></a>00364 <span class="comment"> fragment used to start a new field with tag t.</span>
<a name="l00365"></a>00365 <span class="comment"> If the list was empty, the field will become the header,</span>
<a name="l00366"></a>00366 <span class="comment"> ignoring the tag.</span>
<a name="l00367"></a>00367 <span class="comment">*/</span>
<a name="l00368"></a>00368 <span class="preprocessor">#define LDEFNEWF( l, t ) \</span>
<a name="l00369"></a>00369 <span class="preprocessor"> int __i = (l)->fld->tag; \</span>
<a name="l00370"></a>00370 <span class="preprocessor"> Fld *__f = (l)->fld - __i--; \</span>
<a name="l00371"></a>00371 <span class="preprocessor"> __f->tag = t; \</span>
<a name="l00372"></a>00372 <span class="preprocessor"> (l)->fld->tag = __i;</span>
<a name="l00373"></a>00373 <span class="preprocessor"></span>
<a name="l00374"></a>00374 <span class="comment">/* add field tag t reserving n bytes space */</span>
<a name="l00375"></a>00375 <span class="preprocessor">#define LNEWF( l, t, n ) do { \</span>
<a name="l00376"></a>00376 <span class="preprocessor"> if ( ((l)->fav && LAVL(l) >= n) || lExtend( l, n, 1 ) ) { \</span>
<a name="l00377"></a>00377 <span class="preprocessor"> LDEFNEWF( l, t ) \</span>
<a name="l00378"></a>00378 <span class="preprocessor"> __f->val = (l)->buf; \</span>
<a name="l00379"></a>00379 <span class="preprocessor"> __f->len = 0; \</span>
<a name="l00380"></a>00380 <span class="preprocessor"> (l)->fav --; \</span>
<a name="l00381"></a>00381 <span class="preprocessor"> } } while(0)</span>
<a name="l00382"></a>00382 <span class="preprocessor"></span>
<a name="l00383"></a>00383 <span class="comment">/* add field tag t using n bytes prefilled space</span>
<a name="l00384"></a>00384 <span class="comment"> must be preextended for one field</span>
<a name="l00385"></a>00385 <span class="comment">*/</span>
<a name="l00386"></a>00386 <span class="preprocessor">#define LPREF( l, t, n ) do { \</span>
<a name="l00387"></a>00387 <span class="preprocessor"> if ( (l)->fav ) { \</span>
<a name="l00388"></a>00388 <span class="preprocessor"> LDEFNEWF( l, t ) \</span>
<a name="l00389"></a>00389 <span class="preprocessor"> __f->val = (l)->buf; \</span>
<a name="l00390"></a>00390 <span class="preprocessor"> __f->len = n; \</span>
<a name="l00391"></a>00391 <span class="preprocessor"> (l)->fav --; \</span>
<a name="l00392"></a>00392 <span class="preprocessor"> (l)->buf += n; \</span>
<a name="l00393"></a>00393 <span class="preprocessor"> } } while(0)</span>
<a name="l00394"></a>00394 <span class="preprocessor"></span>
<a name="l00395"></a>00395
<a name="l00396"></a>00396 <span class="comment">/* add field tag t with value v n bytes long */</span>
<a name="l00397"></a>00397 <span class="preprocessor">#define LADD( l, t, v, n ) do { \</span>
<a name="l00398"></a>00398 <span class="preprocessor"> if ( ((l)->fav && LAVL(l) >= n) || lExtend( l, n, 1 ) ) { \</span>
<a name="l00399"></a>00399 <span class="preprocessor"> LDEFNEWF( l, t ) \</span>
<a name="l00400"></a>00400 <span class="preprocessor"> memcpy( __f->val = (l)->buf, v, __f->len = n ); \</span>
<a name="l00401"></a>00401 <span class="preprocessor"> (l)->fav --; \</span>
<a name="l00402"></a>00402 <span class="preprocessor"> (l)->buf += n; \</span>
<a name="l00403"></a>00403 <span class="preprocessor"> } } while(0)</span>
<a name="l00404"></a>00404 <span class="preprocessor"></span>
<a name="l00405"></a>00405 <span class="comment">/* append value v n bytes long */</span>
<a name="l00406"></a>00406 <span class="preprocessor">#define LAPP( l, v, n ) do { \</span>
<a name="l00407"></a>00407 <span class="preprocessor"> if ( LAVL(l) >= n || lExtend( l, n, -1 ) ) { \</span>
<a name="l00408"></a>00408 <span class="preprocessor"> Fld *__f = LLAST(l); \</span>
<a name="l00409"></a>00409 <span class="preprocessor"> memcpy( (l)->buf, v, n ); \</span>
<a name="l00410"></a>00410 <span class="preprocessor"> __f->len += n; \</span>
<a name="l00411"></a>00411 <span class="preprocessor"> (l)->buf += n; \</span>
<a name="l00412"></a>00412 <span class="preprocessor"> } } while(0)</span>
<a name="l00413"></a>00413 <span class="preprocessor"></span>
<a name="l00414"></a>00414 <span class="comment">/* add field tag t with int value i */</span>
<a name="l00415"></a>00415 <span class="preprocessor">#define LADDI( l, t, i ) do { \</span>
<a name="l00416"></a>00416 <span class="preprocessor"> if ( ((l)->fav && LAVL(l) >= 12) || lExtend( l, 12, 1 ) ) { \</span>
<a name="l00417"></a>00417 <span class="preprocessor"> LDEFNEWF( l, t ) \</span>
<a name="l00418"></a>00418 <span class="preprocessor"> (l)->buf += __f->len = i2a( __f->val = (l)->buf, i ); \</span>
<a name="l00419"></a>00419 <span class="preprocessor"> (l)->fav --; \</span>
<a name="l00420"></a>00420 <span class="preprocessor"> } } while(0)</span>
<a name="l00421"></a>00421 <span class="preprocessor"></span>
<a name="l00422"></a>00422 <span class="preprocessor">#define LADDS( l, t, s ) LADD( l, t, s, strlen(s) )</span>
<a name="l00423"></a>00423 <span class="preprocessor"></span><span class="preprocessor">#define LAPPS( l, s ) LAPP( l, s, strlen(s) )</span>
<a name="l00424"></a>00424 <span class="preprocessor"></span><span class="preprocessor">#define LADDF( l, f ) LADD( l, f->tag, f->val, f->len )</span>
<a name="l00425"></a>00425 <span class="preprocessor"></span>
<a name="l00426"></a>00426
<a name="l00436"></a>00436 <span class="comment">/*</span>
<a name="l00437"></a>00437 <span class="comment"> append canonical options fields.</span>
<a name="l00438"></a>00438 <span class="comment"> args starting with '-' are treated as options and appended as</span>
<a name="l00439"></a>00439 <span class="comment"> tab separated subfield w/o the '-'.</span>
<a name="l00440"></a>00440 <span class="comment"> If the first arg does not start with '-', it is used as primary value.</span>
<a name="l00441"></a>00441 <span class="comment"> Other non-options are appended as subfields indicated by '@'.</span>
<a name="l00442"></a>00442 <span class="comment"> In order to skip the program's name, from main() use with argc-1,argv+1.</span>
<a name="l00443"></a>00443 <span class="comment">*/</span>
<a name="l00444"></a>00444 <span class="keyword">extern</span> <span class="keywordtype">int</span> lArgv ( <a class="code" href="structList.html">List</a> *l, <span class="keywordtype">int</span> tag, <span class="keywordtype">int</span> argc, <span class="keyword">const</span> <span class="keywordtype">char</span> **argv );
<a name="l00445"></a>00445 <span class="comment">/*</span>
<a name="l00446"></a>00446 <span class="comment"> same using 0-terminated list.</span>
<a name="l00447"></a>00447 <span class="comment">extern int lArgs ( List *l, int tag, const char *arg, ... );</span>
<a name="l00448"></a>00448 <span class="comment">*/</span>
<a name="l00454"></a>00454 <span class="keyword">extern</span> <a class="code" href="structList.html">List</a> *lVar ( <a class="code" href="structList.html">List</a> *l, <span class="keywordtype">int</span> argc, <span class="keyword">const</span> <span class="keywordtype">char</span> **argv );
<a name="l00455"></a>00455
<a name="l00456"></a>00456 <span class="comment">/* if siz is 0, rSiz() is used */</span>
<a name="l00457"></a>00457 <span class="keyword">extern</span> <span class="keywordtype">int</span> lCpy ( <a class="code" href="structList.html">List</a> *l, <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *src, <span class="keywordtype">unsigned</span> siz );
<a name="l00458"></a>00458 <span class="preprocessor">#define LCPY( l, src ) lCpy( l, (src)->fld, LSIZ(src) )</span>
<a name="l00459"></a>00459 <span class="preprocessor"></span>
<a name="l00460"></a>00460 <span class="comment">/* create canned version of list as new record */</span>
<a name="l00461"></a>00461 <span class="preprocessor">#define LCAN( l ) rDup( (l)->fld, LSIZ(l) )</span>
<a name="l00462"></a>00462 <span class="preprocessor"></span>
<a name="l00463"></a>00463
<a name="l00464"></a>00464 <span class="comment">/*</span>
<a name="l00465"></a>00465 <span class="comment"> Print a field to list.</span>
<a name="l00466"></a>00466 <span class="comment"> a fmt of 0 indicates varargs.</span>
<a name="l00467"></a>00467 <span class="comment">*/</span>
<a name="l00468"></a>00468 <span class="keyword">extern</span> <span class="keywordtype">int</span> lOut ( <a class="code" href="structList.html">List</a> *to, <span class="keywordtype">int</span> tag, <span class="keyword">const</span> <span class="keywordtype">char</span> *fmt, ... );
<a name="l00469"></a>00469
<a name="l00470"></a>00470
<a name="l00471"></a>00471 <span class="comment">/*</span>
<a name="l00472"></a>00472 <span class="comment"> set the first field with tag to val (of len, -1 for strlen)</span>
<a name="l00473"></a>00473 <span class="comment"> kill additional fields with tag</span>
<a name="l00474"></a>00474 <span class="comment"> if no field found, add one at end</span>
<a name="l00475"></a>00475 <span class="comment">extern int lSet ( List *l, int tag, const char *val, unsigned len );</span>
<a name="l00476"></a>00476 <span class="comment">*/</span>
<a name="l00477"></a>00477
<a name="l00478"></a>00478
<a name="l00479"></a>00479 <span class="keyword">enum</span> { <span class="comment">/* list parse state */</span>
<a name="l00480"></a>00480 LPS_SOR, <span class="comment">/* 0, at start of record */</span>
<a name="l00481"></a>00481 LPS_SOL = 0x1000000, <span class="comment">/* at start of line */</span>
<a name="l00482"></a>00482 LPS_TAG = 0x2000000, <span class="comment">/* in tag (only digits seen in line) */</span>
<a name="l00483"></a>00483 LPS_VAL = 0x3000000, <span class="comment">/* in val (some non-digit seen) */</span>
<a name="l00484"></a>00484 LPS_NEG = 0x4000000, <span class="comment">/* found '-' at start of line */</span>
<a name="l00485"></a>00485 LPS_CR = 0x8000000, <span class="comment">/* kill carriage return character */</span>
<a name="l00486"></a>00486 LPS_LEN = 0x0ffffff
<a name="l00487"></a>00487 };
<a name="l00494"></a>00494 <span class="keyword">extern</span> <span class="keywordtype">int</span> lParse (<a class="code" href="structList.html">List</a> *l, <span class="keyword">const</span> <span class="keywordtype">char</span> *txt, <span class="keywordtype">int</span> lps);
<a name="l00495"></a>00495
<a name="l00496"></a>00496
<a name="l00507"></a>00507 <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structSink.html">Sink</a> <a class="code" href="structSink.html">Sink</a>;
<a name="l00508"></a>00508 <span class="keyword">typedef</span> <span class="keywordtype">void</span> sink (<a class="code" href="structSink.html">Sink</a> *that, <span class="keywordtype">int</span> eor); <span class="comment">/* clean all or part of buffer(s) */</span>
<a name="l00509"></a>00509
<a name="l00510"></a><a class="code" href="structSink.html">00510</a> <span class="keyword">struct </span><a class="code" href="structSink.html">Sink</a> {
<a name="l00511"></a>00511 <a class="code" href="structList.html">List</a> lst;
<a name="l00512"></a>00512 sink *snk; <span class="comment">/* sinking function */</span>
<a name="l00513"></a>00513 <span class="keywordtype">void</span> *dst; <span class="comment">/* destination */</span>
<a name="l00514"></a>00514 <span class="keywordtype">int</span> off; <span class="comment">/* start of current record in list, negative after partial flush */</span>
<a name="l00515"></a>00515 };
<a name="l00516"></a>00516
<a name="l00517"></a>00517 <span class="preprocessor">#define SINK(s) (s)->snk(s, 0)</span>
<a name="l00518"></a>00518 <span class="preprocessor"></span><span class="preprocessor">#define SEOR(s) (s)->snk(s, 1)</span>
<a name="l00519"></a>00519 <span class="preprocessor"></span><span class="preprocessor">#define SCPY(s, l) do { LCPY(&(s)->lst, l); SEOR(s); } while (0)</span>
<a name="l00520"></a>00520 <span class="preprocessor"></span><span class="preprocessor">#define SCPYR(s, r) do { lCpy(&(s)->lst, r, 0); SEOR(s); } while (0)</span>
<a name="l00521"></a>00521 <span class="preprocessor"></span>
<a name="l00522"></a>00522 <span class="comment">/* ****************************************************************** */</span>
<a name="l00523"></a>00523 <span class="comment">/* */</span>
<a name="l00524"></a>00524 <span class="comment">/* ENVIRONMENT AND SYSTEM */</span>
<a name="l00525"></a>00525 <span class="comment">/* */</span>
<a name="l00526"></a>00526 <span class="comment">/* ****************************************************************** */</span>
<a name="l00527"></a>00527
<a name="l00528"></a>00528 <span class="preprocessor">#ifndef WIN32</span>
<a name="l00529"></a>00529 <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keywordtype">int</span> file;
<a name="l00530"></a>00530 <span class="preprocessor">#define FIL_NONE -1</span>
<a name="l00531"></a>00531 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00532"></a>00532 <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keywordtype">void</span> *file;
<a name="l00533"></a>00533 <span class="preprocessor">#define FIL_NONE 0</span>
<a name="l00534"></a>00534 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00535"></a>00535 <span class="preprocessor"></span>
<a name="l00536"></a>00536 <span class="comment">/* environment.</span>
<a name="l00537"></a>00537 <span class="comment">*/</span>
<a name="l00538"></a><a class="code" href="structEnv.html">00538</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structEnv.html">Env</a> {
<a name="l00539"></a>00539 <a class="code" href="structList.html">List</a> *opt; <span class="comment">/* options (header is packed command line) */</span>
<a name="l00540"></a>00540 file in;
<a name="l00541"></a>00541 <a class="code" href="structSink.html">Sink</a> *out; <span class="comment">/* a proper record sink expecting complete records */</span>
<a name="l00542"></a>00542 <a class="code" href="structSink.html">Sink</a> *err; <span class="comment">/* a usually field buffered sink for eOut messages */</span>
<a name="l00543"></a>00543 <span class="keywordtype">int</span> log; <span class="comment">/* level */</span>
<a name="l00544"></a>00544 <span class="keywordtype">int</span> flg;
<a name="l00545"></a>00545 <span class="keywordtype">int</span> wri; <span class="comment">/* write mode none/excl/shared */</span>
<a name="l00546"></a>00546 <span class="keywordtype">int</span> sig; <span class="comment">/* interrupted by signal */</span>
<a name="l00547"></a>00547 <span class="keywordtype">unsigned</span> psz; <span class="comment">/* system page size = 1<<psh enforced min 4K */</span>
<a name="l00548"></a>00548 <span class="keywordtype">int</span> psh; <span class="comment">/* page shift (bits) 12..CPU_PAGE_SHIFT */</span>
<a name="l00549"></a>00549 <span class="keywordtype">unsigned</span> rml; <span class="comment">/* r memory map limit (max pages per pointer map) */</span>
<a name="l00550"></a>00550 <span class="keywordtype">unsigned</span> qml; <span class="comment">/* q memory map limit (max pages per tree map) */</span>
<a name="l00551"></a>00551 <span class="comment">/* LBlk *blk[5]; for memory management */</span>
<a name="l00552"></a>00552 } <a class="code" href="structEnv.html">Env</a>;
<a name="l00553"></a>00553
<a name="l00554"></a>00554 <span class="keyword">enum</span> { <span class="comment">/* env flags */</span>
<a name="l00555"></a>00555 ENV_BUFFER = 1, <span class="comment">/* env.err is buffered */</span>
<a name="l00556"></a>00556 ENV_MSYNC = 2 <span class="comment">/* use msync */</span>
<a name="l00557"></a>00557 };
<a name="l00558"></a>00558 <span class="keyword">enum</span> { <span class="comment">/* env writing mode */</span>
<a name="l00559"></a>00559 ENV_RO, <span class="comment">/* readonly - not writing */</span>
<a name="l00560"></a>00560 ENV_EXCL <span class="comment">/* exclusive access (the default) */</span>
<a name="l00561"></a>00561 <span class="preprocessor">#ifdef BUILD_SHMODE</span>
<a name="l00562"></a>00562 <span class="preprocessor"></span> , ENV_SHARED <span class="comment">/* shared access */</span>
<a name="l00563"></a>00563 <span class="preprocessor">#endif</span>
<a name="l00564"></a>00564 <span class="preprocessor"></span>};
<a name="l00565"></a>00565 <span class="keyword">enum</span> { <span class="comment">/* signal code */</span>
<a name="l00566"></a>00566 ENV_CANCEL = 1, <span class="comment">/* abort current request */</span>
<a name="l00567"></a>00567 ENV_TERM <span class="comment">/* abort current request and exit */</span>
<a name="l00568"></a>00568 };
<a name="l00569"></a>00569
<a name="l00570"></a>00570 <span class="keyword">extern</span> <a class="code" href="structEnv.html">Env</a> env; <span class="comment">/* main environment */</span>
<a name="l00571"></a>00571
<a name="l00575"></a>00575 <span class="keyword">enum</span> { <span class="comment">/* our very own errno */</span>
<a name="l00576"></a>00576 ERR_OK = 0, <span class="comment">/* 0 is no error, also read(2)'s EINTR, EAGAIN */</span>
<a name="l00577"></a>00577 ERR_NO = -1, <span class="comment">/* get details from errno */</span>
<a name="l00578"></a>00578 <span class="comment">/* error level FATAL: we are wrong */</span>
<a name="l00579"></a>00579 ERR_IDIOT = -2, <span class="comment">/* caught programming error */</span>
<a name="l00580"></a>00580 ERR_TRASH = -3, <span class="comment">/* database internal consistency */</span>
<a name="l00581"></a>00581 LOG_FATAL = ERR_TRASH, <span class="comment">/* fatal internal errors: we can't go on */</span>
<a name="l00582"></a>00582 <span class="comment">/* error levels SYERR,ERROR,IOERR: system or user was wrong */</span>
<a name="l00583"></a>00583 ERR_NOMEM = -4, <span class="comment">/* out of memory, also open(2)'s EMFILE, ENFILE */</span>
<a name="l00584"></a>00584 ERR_IO = -5, <span class="comment">/* real IO error, also write(2)'s ENOSPC, EPIPE */</span>
<a name="l00585"></a>00585 ERR_BUSY = -6, <span class="comment">/* object is busy */</span>
<a name="l00586"></a>00586 LOG_SYSERR = ERR_BUSY, <span class="comment">/* problem with system ressources: bad file, no mem */</span>
<a name="l00587"></a>00587 ERR_BADF = -7, <span class="comment">/* bad file, also read(2)'s EINVAL, some of open(2) */</span>
<a name="l00588"></a>00588 ERR_FAULT = -8, <span class="comment">/* 0 pointer or bad sized buffer given */</span>
<a name="l00589"></a>00589 ERR_INVAL = -9, <span class="comment">/* general invalid parameters, any EINVAL errno */</span>
<a name="l00590"></a>00590 LOG_ERROR = ERR_INVAL, <span class="comment">/* unusable input, database or query */</span>
<a name="l00591"></a>00591 ERR_AGAIN = -10, <span class="comment">/* no data at intr or nonblock */</span>
<a name="l00592"></a>00592 LOG_IOERR = ERR_AGAIN, <span class="comment">/* problem on IO */</span>
<a name="l00593"></a>00593 LOG_WARN = -11, <span class="comment">/* bad input */</span>
<a name="l00594"></a>00594 <span class="comment">/* logging levels: nothing was wrong */</span>
<a name="l00595"></a>00595 LOG_INFO = -12, <span class="comment">/* some major event like opening a db */</span>
<a name="l00596"></a>00596 LOG_VERBOSE = -13, <span class="comment">/* any event like reading a record */</span>
<a name="l00597"></a>00597 LOG_DEBUG = -14, <span class="comment">/* lots of processing details (debug built only) */</span>
<a name="l00598"></a>00598 LOG_TRACE = -15, <span class="comment">/* database content (log_str) */</span>
<a name="l00599"></a>00599 LOG_ALL = LOG_TRACE
<a name="l00600"></a>00600 };
<a name="l00601"></a>00601
<a name="l00602"></a>00602
<a name="l00603"></a>00603 <span class="preprocessor">#define EADD(t, v, n) LADD(&env.out->lst, t, v, n)</span>
<a name="l00604"></a>00604 <span class="preprocessor"></span><span class="preprocessor">#define EAPP(v, n) LAPP(&env.out->lst, v, n)</span>
<a name="l00605"></a>00605 <span class="preprocessor"></span><span class="preprocessor">#define EADDS(t, s) LADDS(&env.out->lst, t, s)</span>
<a name="l00606"></a>00606 <span class="preprocessor"></span><span class="preprocessor">#define EAPPS(s) LAPPS(&env.out->lst, s)</span>
<a name="l00607"></a>00607 <span class="preprocessor"></span><span class="preprocessor">#define EADDI(t, i) LADDI(&env.out->lst, t, i)</span>
<a name="l00608"></a>00608 <span class="preprocessor"></span><span class="preprocessor">#define EADDF(f) LADDF(&env.out->lst, f)</span>
<a name="l00609"></a>00609 <span class="preprocessor"></span>
<a name="l00610"></a>00610 <span class="comment">/*</span>
<a name="l00611"></a>00611 <span class="comment"> Append a field with abs(tag) to env.out for non-negative tags,</span>
<a name="l00612"></a>00612 <span class="comment"> else to env.err if tag >= env's loglevel.</span>
<a name="l00613"></a>00613 <span class="comment"> For system errors, additional info is appended.</span>
<a name="l00614"></a>00614 <span class="comment"> env.err's eof is called, if any.</span>
<a name="l00615"></a>00615 <span class="comment"> returns tag</span>
<a name="l00616"></a>00616 <span class="comment"></span>
<a name="l00617"></a>00617 <span class="comment"> supports only a small subset of printf formats -- see the src</span>
<a name="l00618"></a>00618 <span class="comment"> has %b (bytes), which is like %.*s, but prints the string in hex</span>
<a name="l00619"></a>00619 <span class="comment">*/</span>
<a name="l00620"></a>00620 <span class="keyword">extern</span> <span class="keywordtype">int</span> eOut ( <span class="keywordtype">int</span> tag, <span class="keyword">const</span> <span class="keywordtype">char</span> *fmt, ... );
<a name="l00621"></a>00621 <span class="keyword">extern</span> <span class="keywordtype">int</span> eRr ( <span class="keywordtype">int</span> tag, <span class="keyword">const</span> <span class="keywordtype">char</span> *fmt, ... );
<a name="l00622"></a>00622 <span class="preprocessor">#ifndef NDEBUG</span>
<a name="l00623"></a>00623 <span class="preprocessor"></span><span class="preprocessor"># define LOG_DBG eRr</span>
<a name="l00624"></a>00624 <span class="preprocessor"></span><span class="preprocessor">#elif defined( __GNUC__ )</span>
<a name="l00625"></a>00625 <span class="preprocessor"></span><span class="preprocessor"># define LOG_DBG( args... )</span>
<a name="l00626"></a>00626 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00627"></a>00627 <span class="preprocessor"></span><span class="preprocessor"># define LOG_DBG (void) </span><span class="comment">/* compiler should dispose statement off */</span>
<a name="l00628"></a>00628 <span class="preprocessor">#endif</span>
<a name="l00629"></a>00629 <span class="preprocessor"></span>
<a name="l00636"></a>00636 <span class="keyword">extern</span> <span class="keywordtype">void</span> cInit ( <a class="code" href="structList.html">List</a> *args, <a class="code" href="structSink.html">Sink</a> *out, <a class="code" href="structSink.html">Sink</a> *err );
<a name="l00637"></a>00637 <span class="comment">/* typical usage from main() */</span>
<a name="l00638"></a>00638 <span class="preprocessor">#define CINIT(argl) cInit(lVar(lInit(argl,0), argc-1, argv+1), 0, 0)</span>
<a name="l00639"></a>00639 <span class="preprocessor"></span>
<a name="l00640"></a>00640
<a name="l00647"></a>00647 <span class="keyword">extern</span> <span class="keywordtype">void</span> *mAlloc ( <span class="keywordtype">int</span> size );
<a name="l00648"></a>00648 <span class="keyword">extern</span> <span class="keywordtype">void</span> *mDup ( <span class="keyword">const</span> <span class="keywordtype">void</span> *str, <span class="keywordtype">int</span> size );
<a name="l00649"></a>00649 <span class="comment">/* cp siz bytes, append a 0 byte */</span>
<a name="l00650"></a>00650 <span class="keyword">extern</span> <span class="keywordtype">char</span> *mDupz ( <span class="keyword">const</span> <span class="keywordtype">char</span> *str, <span class="keywordtype">int</span> size );
<a name="l00651"></a>00651 <span class="keyword">extern</span> <span class="keywordtype">void</span> *mTryAlloc ( <span class="keywordtype">int</span> size );
<a name="l00652"></a>00652 <span class="keyword">extern</span> <span class="keywordtype">void</span> mFree ( <span class="keywordtype">void</span> *mem );
<a name="l00653"></a>00653 <span class="keyword">extern</span> <a class="code" href="structFld.html">Fld</a> *mFldAlloc ( <span class="keywordtype">int</span> nfields );
<a name="l00654"></a>00654 <span class="keyword">extern</span> <span class="keywordtype">void</span> mFldFree ( <a class="code" href="structFld.html">Fld</a> *fld );
<a name="l00655"></a>00655 <span class="keyword">extern</span> <a class="code" href="structLBlk.html">LBlk</a> *mBlkAlloc ( <span class="keywordtype">int</span> size );
<a name="l00656"></a>00656 <span class="keyword">extern</span> <span class="keywordtype">void</span> mBlkFree ( <a class="code" href="structLBlk.html">LBlk</a> *blk );
<a name="l00657"></a>00657 <span class="keyword">extern</span> <a class="code" href="structList.html">List</a> *mListAlloc ( <span class="keyword">const</span> <span class="keywordtype">char</span> *name ); <span class="comment">/* lInitialized with name */</span>
<a name="l00658"></a>00658 <span class="keyword">extern</span> <span class="keywordtype">void</span> mListFree ( <a class="code" href="structList.html">List</a> *l );
<a name="l00659"></a>00659 <span class="preprocessor">#define mFldAlloc(n) ((Fld*)mAlloc((n)*sizeof(Fld)))</span>
<a name="l00660"></a>00660 <span class="preprocessor"></span><span class="preprocessor">#define mFldFree mFree</span>
<a name="l00661"></a>00661 <span class="preprocessor"></span><span class="preprocessor">#define mBlkFree mFree</span>
<a name="l00662"></a>00662 <span class="preprocessor"></span><span class="preprocessor">#define MFREE(p) do { mFree(p); (p)=0; } while(0)</span>
<a name="l00663"></a>00663 <span class="preprocessor"></span>
<a name="l00664"></a>00664
<a name="l00668"></a>00668 <span class="keyword">extern</span> <span class="keywordtype">int</span> tUpd ( lolo *tm );
<a name="l00676"></a>00676 <span class="keyword">extern</span> <span class="keywordtype">int</span> tGtf ( <span class="keywordtype">char</span> *buf, lolo *tm );
<a name="l00682"></a>00682 <span class="keyword">extern</span> <span class="keywordtype">char</span> *tGtfm ( <span class="keywordtype">char</span> *buf, lolo *tm );
<a name="l00686"></a>00686 <span class="keyword">extern</span> <span class="keywordtype">void</span> tSleep ( lolo tm );
<a name="l00687"></a>00687
<a name="l00688"></a>00688
<a name="l00689"></a>00689 <span class="comment">/* ************************************************************</span>
<a name="l00690"></a>00690 <span class="comment"> disk files (block devices)</span>
<a name="l00691"></a>00691 <span class="comment">*/</span>
<a name="l00692"></a>00692
<a name="l00693"></a>00693
<a name="l00694"></a>00694 <span class="keyword">enum</span> {
<a name="l00695"></a>00695 <span class="comment">/* basic open flags */</span>
<a name="l00696"></a>00696 FIL_RD = 0x001, <span class="comment">/* shall be opened for input */</span>
<a name="l00697"></a>00697 FIL_WR = 0x002, <span class="comment">/* shall be opened for output */</span>
<a name="l00698"></a>00698 FIL_RDWR = 0x003, <span class="comment">/* shall be opened for both */</span>
<a name="l00699"></a>00699 FIL_TRY = 0x004, <span class="comment">/* do not complain if open fails */</span>
<a name="l00700"></a>00700 <span class="comment">/* write flags */</span>
<a name="l00701"></a>00701 FIL_CREAT = 0x010, <span class="comment">/* shall be created */</span>
<a name="l00702"></a>00702 FIL_TRUNC = 0x020, <span class="comment">/* shall be truncated */</span>
<a name="l00703"></a>00703 FIL_SYNC = 0x040, <span class="comment">/* syncing output */</span>
<a name="l00704"></a>00704 <span class="comment">/* lock flags */</span>
<a name="l00705"></a>00705 FIL_TLOCK = 0x100, <span class="comment">/* try locking (EX with WR) */</span>
<a name="l00706"></a>00706 FIL_BLOCK = 0x200, <span class="comment">/* blocking lock (EX with WR) */</span>
<a name="l00707"></a>00707 FIL_FLOCK = 0x300 <span class="comment">/* any locking is set */</span>
<a name="l00708"></a>00708 };
<a name="l00709"></a>00709
<a name="l00715"></a>00715 <span class="keyword">extern</span> <span class="keywordtype">int</span> fOpen ( file *f, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> flags );
<a name="l00716"></a>00716 <span class="keyword">extern</span> <span class="keywordtype">int</span> fClose ( file *f );
<a name="l00717"></a>00717 <span class="keyword">extern</span> <span class="keywordtype">int</span> fSize ( file f );
<a name="l00718"></a>00718 <span class="keyword">extern</span> <span class="keywordtype">unsigned</span> fTime ( file f ); <span class="comment">/* mtime sec */</span>
<a name="l00719"></a>00719
<a name="l00720"></a>00720
<a name="l00721"></a>00721 <span class="comment">/*</span>
<a name="l00722"></a>00722 <span class="comment"> Like the syscalls, this returns the number of bytes on success, 0 on eof.</span>
<a name="l00723"></a>00723 <span class="comment"> fPwrite repeats and does not return an error when interrupted.</span>
<a name="l00724"></a>00724 <span class="comment"> On error, a negative value is returned.</span>
<a name="l00725"></a>00725 <span class="comment">*/</span>
<a name="l00726"></a>00726 <span class="keyword">extern</span> <span class="keywordtype">int</span> fRead ( file *f, <span class="keywordtype">void</span> *buf, <span class="keywordtype">unsigned</span> len );
<a name="l00727"></a>00727 <span class="keyword">extern</span> <span class="keywordtype">int</span> fWrite ( file *f, <span class="keyword">const</span> <span class="keywordtype">void</span> *buf, <span class="keywordtype">unsigned</span> len );
<a name="l00728"></a>00728 <span class="keyword">extern</span> <span class="keywordtype">int</span> fPread ( file *f, <span class="keywordtype">void</span> *buf, <span class="keywordtype">unsigned</span> len, <span class="keywordtype">unsigned</span> off );
<a name="l00729"></a>00729 <span class="keyword">extern</span> <span class="keywordtype">int</span> fPwrite ( file *f, <span class="keyword">const</span> <span class="keywordtype">void</span> *buf, <span class="keywordtype">unsigned</span> len, <span class="keywordtype">unsigned</span> off );
<a name="l00730"></a>00730 <span class="keyword">extern</span> <span class="keywordtype">int</span> fSeek ( file *f, <span class="keywordtype">unsigned</span> off );
<a name="l00731"></a>00731 <span class="keyword">extern</span> <span class="keywordtype">int</span> fTrunc ( file *f, <span class="keywordtype">unsigned</span> length );
<a name="l00732"></a>00732 <span class="preprocessor">#ifdef BUILD_SHMODE</span>
<a name="l00733"></a>00733 <span class="preprocessor"></span><span class="comment">/* remove a full file lock as set by fOpen */</span>
<a name="l00734"></a>00734 <span class="keyword">extern</span> <span class="keywordtype">void</span> fUnlock ( file f );
<a name="l00735"></a>00735 <span class="comment">/*</span>
<a name="l00736"></a>00736 <span class="comment"> lock byte n</span>
<a name="l00737"></a>00737 <span class="comment"> use TLOCK or BLOCK, possibly with WR, to lock, 0 to unlock.</span>
<a name="l00738"></a>00738 <span class="comment">*/</span>
<a name="l00739"></a>00739 <span class="keyword">extern</span> <span class="keywordtype">int</span> fLock ( file f, <span class="keywordtype">unsigned</span> n, <span class="keywordtype">int</span> flg );
<a name="l00740"></a>00740 <span class="preprocessor">#define FLOCK(f,n,flg) (ENV_SHARED==env.wri && fLock(f,n,flg))</span>
<a name="l00741"></a>00741 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00742"></a>00742 <span class="preprocessor"></span><span class="preprocessor">#define FLOCK(f,n,flg) 0</span>
<a name="l00743"></a>00743 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00744"></a>00744 <span class="preprocessor"></span><span class="preprocessor">#define FLOCKSH(f,n) FLOCK(f,n,FIL_BLOCK)</span>
<a name="l00745"></a>00745 <span class="preprocessor"></span><span class="preprocessor">#define FLOCKEX(f,n) FLOCK(f,n,FIL_BLOCK|FIL_WR)</span>
<a name="l00746"></a>00746 <span class="preprocessor"></span><span class="preprocessor">#define FLOCKUN(f,n) FLOCK(f,n,0)</span>
<a name="l00747"></a>00747 <span class="preprocessor"></span>
<a name="l00756"></a>00756 <span class="keyword">extern</span> <span class="keywordtype">int</span> fSlurp ( <span class="keywordtype">char</span> **buf, <span class="keywordtype">int</span> sz, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> opt );
<a name="l00757"></a>00757
<a name="l00758"></a>00758 <span class="comment">/* record-oriented sink to (file)dst.</span>
<a name="l00759"></a>00759 <span class="comment"> Expects the list to contain a proper record.</span>
<a name="l00760"></a>00760 <span class="comment"> If the header starts with a digit, a W<TAB> is prepended.</span>
<a name="l00761"></a>00761 <span class="comment"> An empty header is ommited.</span>
<a name="l00762"></a>00762 <span class="comment">*/</span>
<a name="l00763"></a>00763 <span class="keyword">extern</span> <span class="keywordtype">void</span> fSinkr (<a class="code" href="structSink.html">Sink</a> *that, <span class="keywordtype">int</span> eor);
<a name="l00764"></a>00764 <span class="comment">/* line-oriented sink (field values only) to (file)dst.</span>
<a name="l00765"></a>00765 <span class="comment"> leaves the header alone, ignores tags and blank values.</span>
<a name="l00766"></a>00766 <span class="comment"> yet prints a blank line on eor.</span>
<a name="l00767"></a>00767 <span class="comment">*/</span>
<a name="l00768"></a>00768 <span class="keyword">extern</span> <span class="keywordtype">void</span> fSinkl (<a class="code" href="structSink.html">Sink</a> *that, <span class="keywordtype">int</span> eor);
<a name="l00769"></a>00769
<a name="l00771"></a><a class="code" href="structFMap.html">00771</a> <span class="keyword">typedef</span> <span class="keyword">struct </span>{
<a name="l00772"></a>00772 file fil;
<a name="l00773"></a>00773 <span class="keywordtype">int</span> flg;
<a name="l00774"></a>00774 <span class="keywordtype">char</span> *map;
<a name="l00775"></a>00775 <span class="keywordtype">unsigned</span> npg; <span class="comment">/* in pages of env.psz */</span>
<a name="l00776"></a>00776 <span class="keywordtype">unsigned</span> lim; <span class="comment">/* max pages to map */</span>
<a name="l00777"></a>00777 <span class="preprocessor">#ifdef WIN32</span>
<a name="l00778"></a>00778 <span class="preprocessor"></span> <span class="keywordtype">char</span> *nam; <span class="comment">/* for shared mapping */</span>
<a name="l00779"></a>00779 <span class="keywordtype">void</span> *hdl; <span class="comment">/* "mapping object" */</span>
<a name="l00780"></a>00780 <span class="preprocessor">#endif</span>
<a name="l00781"></a>00781 <span class="preprocessor"></span>} <a class="code" href="structFMap.html">FMap</a>;
<a name="l00782"></a>00782
<a name="l00787"></a>00787 <span class="keyword">extern</span> <span class="keywordtype">int</span> fMOpen ( <a class="code" href="structFMap.html">FMap</a> *fm, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> flags );
<a name="l00788"></a>00788 <span class="keyword">extern</span> <span class="keywordtype">int</span> fMClose ( <a class="code" href="structFMap.html">FMap</a> *fm );
<a name="l00798"></a>00798 <span class="keyword">extern</span> <span class="keywordtype">int</span> fMap ( <a class="code" href="structFMap.html">FMap</a> *fm, <span class="keywordtype">unsigned</span> npg );
<a name="l00800"></a>00800 <span class="keyword">extern</span> <span class="keywordtype">int</span> fMSync ( <a class="code" href="structFMap.html">FMap</a> *fm, <span class="keywordtype">unsigned</span> page );
<a name="l00801"></a>00801
<a name="l00802"></a>00802
<a name="l00803"></a>00803 <span class="comment">/*</span>
<a name="l00804"></a>00804 <span class="comment"> file input buffer structure for fGets.</span>
<a name="l00805"></a>00805 <span class="comment"> suitable for both temp fix buffers and, with some care, for List buffers.</span>
<a name="l00806"></a>00806 <span class="comment">*/</span>
<a name="l00807"></a><a class="code" href="structFBuf.html">00807</a> <span class="keyword">typedef</span> <span class="keyword">struct </span>{
<a name="l00808"></a>00808 file f; <span class="comment">/* file to read from */</span>
<a name="l00809"></a>00809 <span class="keywordtype">unsigned</span> n; <span class="comment">/* current line number (1 based) */</span>
<a name="l00810"></a>00810 <span class="keywordtype">unsigned</span> o; <span class="comment">/* offset of p from file start */</span>
<a name="l00811"></a>00811 <span class="keywordtype">char</span> *b; <span class="comment">/* buffer base (const) */</span>
<a name="l00812"></a>00812 <span class="keywordtype">unsigned</span> s; <span class="comment">/* buffer size (const) */</span>
<a name="l00813"></a>00813 <span class="keywordtype">char</span> *p; <span class="comment">/* start of current line */</span>
<a name="l00814"></a>00814 <span class="keywordtype">unsigned</span> l; <span class="comment">/* line len */</span>
<a name="l00815"></a>00815 <span class="keywordtype">unsigned</span> m; <span class="comment">/* more bytes after p+l (including the LF) */</span>
<a name="l00816"></a>00816 } <a class="code" href="structFBuf.html">FBuf</a>;
<a name="l00817"></a>00817 <span class="comment">/* sloppy but convenient initializer macro */</span>
<a name="l00818"></a>00818 <span class="preprocessor">#define FIL_BUF( fb, fil, buf ) do { \</span>
<a name="l00819"></a>00819 <span class="preprocessor"> fb.f = fil; fb.b = fb.p = buf; fb.s = sizeof(buf); \</span>
<a name="l00820"></a>00820 <span class="preprocessor"> fb.n = 1; fb.o = fb.l = fb.m = 0; \</span>
<a name="l00821"></a>00821 <span class="preprocessor"> } while (0)</span>
<a name="l00822"></a>00822 <span class="preprocessor"></span><span class="comment">/* even more convenient macro, must be end of data def */</span>
<a name="l00823"></a>00823 <span class="preprocessor">#define FIL_DEFBUF( f ) \</span>
<a name="l00824"></a>00824 <span class="preprocessor"> char buf[0x2000]; \</span>
<a name="l00825"></a>00825 <span class="preprocessor"> FBuf fb; \</span>
<a name="l00826"></a>00826 <span class="preprocessor"> FIL_BUF(fb, f, buf);</span>
<a name="l00827"></a>00827 <span class="preprocessor"></span><span class="comment">/*</span>
<a name="l00828"></a>00828 <span class="comment"> set p and l to next line, lines are terminated by LF.</span>
<a name="l00829"></a>00829 <span class="comment"> if l, advance p after current line.</span>
<a name="l00830"></a>00830 <span class="comment"> if m, skip next byte.</span>
<a name="l00831"></a>00831 <span class="comment"> if m, search for newline.</span>
<a name="l00832"></a>00832 <span class="comment"> if no newline found, mv p downto b and read more chars upto s.</span>
<a name="l00833"></a>00833 <span class="comment"> if l==s, buffer is exhausted (and m is 0).</span>
<a name="l00834"></a>00834 <span class="comment"> else if m, p[l] is a newline.</span>
<a name="l00835"></a>00835 <span class="comment"> else if FIL_NONE == f,</span>
<a name="l00836"></a>00836 <span class="comment"> no bytes could be read (an eof was seen or somebody set NBLOCK).</span>
<a name="l00837"></a>00837 <span class="comment"> return whether we got a line</span>
<a name="l00838"></a>00838 <span class="comment">*/</span>
<a name="l00839"></a>00839 <span class="keyword">extern</span> <span class="keywordtype">int</span> fGets ( <a class="code" href="structFBuf.html">FBuf</a> *fb );
<a name="l00840"></a>00840 <span class="keyword">extern</span> <span class="keywordtype">int</span> fGetr ( <a class="code" href="structList.html">List</a> *l, <a class="code" href="structFBuf.html">FBuf</a> *fb );
<a name="l00841"></a>00841
<a name="l00842"></a>00842
<a name="l00843"></a>00843
<a name="l00844"></a>00844 <span class="comment">/* ****************************************************************** */</span>
<a name="l00845"></a>00845 <span class="comment">/* */</span>
<a name="l00846"></a>00846 <span class="comment">/* DATABASE */</span>
<a name="l00847"></a>00847 <span class="comment">/* */</span>
<a name="l00848"></a>00848 <span class="comment">/* ****************************************************************** */</span>
<a name="l00849"></a>00849
<a name="l00850"></a>00850 <span class="keyword">enum</span> { <span class="comment">/* flags for record and query data/index file pairs */</span>
<a name="l00851"></a>00851 DX_OPEN = 0x1, <span class="comment">/* open */</span>
<a name="l00852"></a>00852 DX_WRITE = 0x2, <span class="comment">/* open for writing */</span>
<a name="l00853"></a>00853 DX_ASYNC = 0x4, <span class="comment">/* no synced write */</span>
<a name="l00854"></a>00854 DX_MODIF = 0x8 <span class="comment">/* modified */</span>
<a name="l00855"></a>00855 };
<a name="l00861"></a><a class="code" href="structRdx.html">00861</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structRdx.html">Rdx</a> {
<a name="l00862"></a>00862 file mrd;
<a name="l00863"></a>00863 <a class="code" href="structFMap.html">FMap</a> mrx;
<a name="l00864"></a>00864 <span class="keywordtype">int</span> flg;
<a name="l00865"></a>00865 <span class="keywordtype">int</span> mid; <span class="comment">/* in records == maxid */</span>
<a name="l00866"></a>00866 <span class="keywordtype">int</span> rdl; <span class="comment">/* length of data file in bytes */</span>
<a name="l00867"></a>00867 <span class="keywordtype">int</span> ptl; <span class="comment">/* pointer bytes, by now always 8 */</span>
<a name="l00868"></a>00868 <span class="keywordtype">int</span> typ; <span class="comment">/* type of pointer file */</span>
<a name="l00869"></a>00869 } <a class="code" href="structRdx.html">Rdx</a>;
<a name="l00870"></a>00870
<a name="l00872"></a>00872 <span class="keyword">extern</span> <span class="keywordtype">int</span> rInit ( <a class="code" href="structRdx.html">Rdx</a> *rdx );
<a name="l00874"></a>00874 <span class="keyword">extern</span> <span class="keywordtype">void</span> rFini ( <a class="code" href="structRdx.html">Rdx</a> *rdx );
<a name="l00875"></a>00875
<a name="l00876"></a>00876 <span class="comment">/*</span>
<a name="l00877"></a>00877 <span class="comment"> read record rid.</span>
<a name="l00878"></a>00878 <span class="comment"> if mpos and the rec is found at mpos or higher,</span>
<a name="l00879"></a>00879 <span class="comment"> rRead will backtrack to earlier versions.</span>
<a name="l00880"></a>00880 <span class="comment">*/</span>
<a name="l00881"></a>00881 <span class="keyword">extern</span> <span class="keywordtype">int</span> rRead ( <a class="code" href="structList.html">List</a> *l, <a class="code" href="structRdx.html">Rdx</a> *rdx, <span class="keywordtype">int</span> rid, <span class="keywordtype">unsigned</span> mpos );
<a name="l00882"></a>00882 <span class="comment">/*</span>
<a name="l00883"></a>00883 <span class="comment"> write a record</span>
<a name="l00884"></a>00884 <span class="comment"> use rid 0 to get new rid</span>
<a name="l00885"></a>00885 <span class="comment"> use opos -1 if you don't care about old pos</span>
<a name="l00886"></a>00886 <span class="comment"> to be transparent here, the rid@pos as found in standard recs</span>
<a name="l00887"></a>00887 <span class="comment"> is ignored and should be pre-skipped up to the leader.</span>
<a name="l00888"></a>00888 <span class="comment"> specify the record size if known, with 0, rSiz will be used</span>
<a name="l00889"></a>00889 <span class="comment"> @return the record id written (> 0) on success, <= 0 on error</span>
<a name="l00890"></a>00890 <span class="comment">*/</span>
<a name="l00891"></a>00891 <span class="keyword">extern</span> <span class="keywordtype">int</span> rWrite ( <a class="code" href="structRdx.html">Rdx</a> *rdx, <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *r, <span class="keywordtype">int</span> rid, <span class="keywordtype">int</span> opos, <span class="keywordtype">unsigned</span> siz );
<a name="l00892"></a>00892
<a name="l00893"></a>00893
<a name="l00902"></a>00902 <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structCdx.html">Cdx</a> <a class="code" href="structCdx.html">Cdx</a>;
<a name="l00903"></a>00903
<a name="l00904"></a><a class="code" href="structQdx.html">00904</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structQdx.html">Qdx</a> { <span class="comment">/* actually it's a B-Link-Tree */</span>
<a name="l00905"></a>00905 file mqd; <span class="comment">/* the leaves file */</span>
<a name="l00906"></a>00906 <a class="code" href="structFMap.html">FMap</a> mqx; <span class="comment">/* the tree file */</span>
<a name="l00907"></a>00907 <span class="keyword">const</span> <a class="code" href="structCdx.html">Cdx</a> *cdx; <span class="comment">/* the collation */</span>
<a name="l00908"></a>00908 <span class="keywordtype">int</span> flg; <span class="comment">/* flags: writeable */</span>
<a name="l00909"></a>00909 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> typ; <span class="comment">/* cfg: leaf block type */</span>
<a name="l00910"></a>00910 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ksz; <span class="comment">/* cfg: max key length, default 255 */</span>
<a name="l00911"></a>00911 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ptr; <span class="comment">/* cfg: inverted file pointer type or plain value size */</span>
<a name="l00912"></a>00912 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> let; <span class="comment">/* cfg: pct free on load */</span>
<a name="l00913"></a>00913 <span class="comment">/* members set automatically: */</span>
<a name="l00914"></a>00914 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> vsz; <span class="comment">/* value size, min 4, default 8 */</span>
<a name="l00915"></a>00915 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> uni; <span class="comment">/* value unique length (see qSet) */</span>
<a name="l00916"></a>00916 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ftp; <span class="comment">/* fork block type */</span>
<a name="l00917"></a>00917 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> dpt; <span class="comment">/* depth (level of root over bottom > 0) */</span>
<a name="l00918"></a>00918 <span class="keywordtype">unsigned</span> lsz; <span class="comment">/* leaf block size computed from type */</span>
<a name="l00919"></a>00919 <span class="keywordtype">unsigned</span> lln; <span class="comment">/* # leaf blocks in index */</span>
<a name="l00920"></a>00920 <span class="keywordtype">unsigned</span> fln; <span class="comment">/* # fork blocks in index */</span>
<a name="l00921"></a>00921 <span class="comment">/* members considered internal: */</span>
<a name="l00922"></a>00922 <span class="keyword">struct </span><a class="code" href="structQLoad.html">QLoad</a> *qld;
<a name="l00923"></a>00923 } <a class="code" href="structQdx.html">Qdx</a>;
<a name="l00924"></a>00924
<a name="l00925"></a>00925 <span class="keyword">enum</span> { <span class="comment">/* btree block type, size, flg */</span>
<a name="l00926"></a>00926 QDX_TYPMSK = 0xC0, <span class="comment">/* highest 2 bits: basic type */</span>
<a name="l00927"></a>00927 QDX_LEAF = 0x00, <span class="comment">/* leaf block, portable */</span>
<a name="l00928"></a>00928 QDX_FORKLE = 0x40, <span class="comment">/* fork block little endian */</span>
<a name="l00929"></a>00929 QDX_FORKBE = 0x80, <span class="comment">/* fork block big endian */</span>
<a name="l00930"></a>00930 QDX_LEAFPV = 0xC0, <span class="comment">/* leaf plain values (forks don't care) */</span>
<a name="l00931"></a>00931 <span class="comment">/* next 2 bits 0x30 for future extensions */</span>
<a name="l00932"></a>00932 QDX_COMPRS = 0x08, <span class="comment">/* flag compressed keys (not yet supported) */</span>
<a name="l00933"></a>00933 QDX_SIZMSK = 0x07, <span class="comment">/* lowest 3 bits: blocksize */</span>
<a name="l00934"></a>00934 QDX_LEAF0K = 0x00, <span class="comment">/* 1/2K blocks 0x0200 9+0 bits */</span>
<a name="l00935"></a>00935 QDX_LEAF1K = 0x01, <span class="comment">/* 1K blocks 0x0400 */</span>
<a name="l00936"></a>00936 QDX_LEAF2K = 0x02, <span class="comment">/* 2K blocks 0x0800 */</span>
<a name="l00937"></a>00937 QDX_LEAF4K = 0x03, <span class="comment">/* 4K blocks 0x1000 */</span>
<a name="l00938"></a>00938 QDX_LEAF8K = 0x04 <span class="comment">/* 8K blocks 0x2000, max for leaves */</span>
<a name="l00939"></a>00939 };
<a name="l00940"></a>00940 <span class="keyword">enum</span> {
<a name="l00941"></a>00941 QDX_MAXVALPERLEAF = 0x800, <span class="comment">/* max 8K / min 4 bytes vsz */</span>
<a name="l00942"></a>00942 QDX_LEAFSH = 9, <span class="comment">/* leaf size shift+(0..4) ~ 512 bytes - 8K */</span>
<a name="l00943"></a>00943 QDX_FORKSH = 12 <span class="comment">/* fork size shift+(0..4) ~ 4K - 64K */</span>
<a name="l00944"></a>00944 };
<a name="l00945"></a>00945
<a name="l00946"></a><a class="code" href="structVal.html">00946</a> <span class="keyword">typedef</span> <span class="keyword">struct </span>{
<a name="l00947"></a>00947 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> len;
<a name="l00948"></a>00948 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> byt[255];
<a name="l00949"></a>00949 } <a class="code" href="structVal.html">Val</a>;
<a name="l00950"></a>00950
<a name="l00951"></a><a class="code" href="structKey.html">00951</a> <span class="keyword">typedef</span> <span class="keyword">struct </span>{
<a name="l00952"></a>00952 <a class="code" href="structVal.html">Val</a> val;
<a name="l00953"></a>00953 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> len;
<a name="l00954"></a>00954 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> byt[255];
<a name="l00955"></a>00955 } <a class="code" href="structKey.html">Key</a>;
<a name="l00956"></a>00956
<a name="l00957"></a>00957
<a name="l00958"></a>00958 <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structQLoop.html">QLoop</a> <a class="code" href="structQLoop.html">QLoop</a>;
<a name="l00965"></a>00965 <span class="keyword">typedef</span> <span class="keywordtype">int</span> QCb ( <a class="code" href="structQLoop.html">QLoop</a> *<span class="keyword">self</span> );
<a name="l00966"></a>00966
<a name="l00967"></a><a class="code" href="structQLoop.html">00967</a> <span class="keyword">struct </span><a class="code" href="structQLoop.html">QLoop</a> {
<a name="l00968"></a>00968 QCb *qcb;
<a name="l00969"></a>00969 <a class="code" href="structQdx.html">Qdx</a> *qdx;
<a name="l00970"></a>00970 <span class="keywordtype">int</span> flg;
<a name="l00971"></a>00971 <a class="code" href="structKey.html">Key</a> key;
<a name="l00972"></a>00972 <a class="code" href="structKey.html">Key</a> to;
<a name="l00973"></a>00973 <span class="comment">/* set on callback: */</span>
<a name="l00974"></a>00974 <a class="code" href="structKey.html">Key</a> cur;
<a name="l00975"></a>00975 <span class="keywordtype">unsigned</span> nvals;
<a name="l00976"></a>00976 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *vals;
<a name="l00977"></a>00977 };
<a name="l00978"></a>00978
<a name="l00979"></a>00979 <span class="keyword">enum</span> { <span class="comment">/* flags */</span>
<a name="l00980"></a>00980 QLOOP = 0, <span class="comment">/* loop endless */</span>
<a name="l00981"></a>00981 <span class="comment">/* stop based on QLoop.key */</span>
<a name="l00982"></a>00982 QEQ = 1, <span class="comment">/* loop while == key */</span>
<a name="l00983"></a>00983 QPF = 2, <span class="comment">/* loop on prefix key */</span>
<a name="l00984"></a>00984 <span class="comment">/* stop based on QLoop.to */</span>
<a name="l00985"></a>00985 QUPTO = 4, <span class="comment">/* loop while < to */</span>
<a name="l00986"></a>00986 QINCL = 5, <span class="comment">/* loop while <= to */</span>
<a name="l00987"></a>00987 QSTOP = 7, <span class="comment">/* mask for stop mode */</span>
<a name="l00988"></a>00988 QSKIP = 8, <span class="comment">/* skip the from key */</span>
<a name="l00989"></a>00989 QSAME = 0x10 <span class="comment">/* callback on same key */</span>
<a name="l00990"></a>00990 };
<a name="l00991"></a>00991
<a name="l00992"></a>00992
<a name="l00994"></a>00994 <span class="keyword">extern</span> <span class="keywordtype">int</span> qInit ( <a class="code" href="structQdx.html">Qdx</a> *bt );
<a name="l00996"></a>00996 <span class="keyword">extern</span> <span class="keywordtype">void</span> qFini ( <a class="code" href="structQdx.html">Qdx</a> *bt );
<a name="l00997"></a>00997
<a name="l00998"></a>00998 <span class="comment">/*</span>
<a name="l00999"></a>00999 <span class="comment"> load a sorted series of keys and hits into index.</span>
<a name="l01000"></a>01000 <span class="comment"> call repeatedly, using a key with val.len 0 in last call</span>
<a name="l01001"></a>01001 <span class="comment">*/</span>
<a name="l01002"></a>01002 <span class="keyword">extern</span> <span class="keywordtype">int</span> qLoad ( <a class="code" href="structQdx.html">Qdx</a> *bt, <a class="code" href="structKey.html">Key</a> *key );
<a name="l01003"></a>01003 <span class="keyword">extern</span> <span class="keywordtype">int</span> qLoadf ( <a class="code" href="structQdx.html">Qdx</a> *bt, file *f );
<a name="l01004"></a>01004
<a name="l01005"></a>01005 <span class="comment">/*</span>
<a name="l01006"></a>01006 <span class="comment"> write the key-value pair to the index and return 0, unless:</span>
<a name="l01007"></a>01007 <span class="comment"> - the value is zero on the 1st uni bytes</span>
<a name="l01008"></a>01008 <span class="comment"> and there is already such a value (unique key, return 3)</span>
<a name="l01009"></a>01009 <span class="comment"> - there is an all-zero value for the key (stopword, return 2)</span>
<a name="l01010"></a>01010 <span class="comment"> - it is already there (full duplicate found, return 1)</span>
<a name="l01011"></a>01011 <span class="comment"> With plain values, only full duplicates are checked.</span>
<a name="l01012"></a>01012 <span class="comment"> Uni is usually the length of the initial segment of value,</span>
<a name="l01013"></a>01013 <span class="comment"> which is the rid in fulltext mode, else the tag.</span>
<a name="l01014"></a>01014 <span class="comment"> Where a unique key is found, the value is copied to key.</span>
<a name="l01015"></a>01015 <span class="comment">*/</span>
<a name="l01016"></a>01016 <span class="keyword">extern</span> <span class="keywordtype">int</span> qSet ( <a class="code" href="structQdx.html">Qdx</a> *bt, <a class="code" href="structKey.html">Key</a> *key );
<a name="l01017"></a>01017 <span class="keyword">enum</span> {
<a name="l01018"></a>01018 QST_OK,
<a name="l01019"></a>01019 QST_FOUND,
<a name="l01020"></a>01020 QST_STPWRD,
<a name="l01021"></a>01021 QST_UNIKEY
<a name="l01022"></a>01022 };
<a name="l01023"></a>01023 <span class="comment">/*</span>
<a name="l01024"></a>01024 <span class="comment"> delete a key-value pair. return 1 if found, else 0</span>
<a name="l01025"></a>01025 <span class="comment">*/</span>
<a name="l01026"></a>01026 <span class="keyword">extern</span> <span class="keywordtype">int</span> qDel ( <a class="code" href="structQdx.html">Qdx</a> *bt, <a class="code" href="structKey.html">Key</a> *key );
<a name="l01027"></a>01027
<a name="l01028"></a>01028 <span class="keyword">extern</span> <span class="keywordtype">int</span> qLoop ( <a class="code" href="structQLoop.html">QLoop</a> *<span class="keyword">self</span> );
<a name="l01029"></a>01029
<a name="l01030"></a>01030
<a name="l01031"></a>01031 <span class="comment">/*</span>
<a name="l01032"></a>01032 <span class="comment"> standard values structured as pointers</span>
<a name="l01033"></a>01033 <span class="comment"> denoting a record and position where key occurred.</span>
<a name="l01034"></a>01034 <span class="comment"> The value structure is up to 3 big endian unsigned numbers:</span>
<a name="l01035"></a>01035 <span class="comment"> 0..2 bytes for tag,</span>
<a name="l01036"></a>01036 <span class="comment"> 3+(0..3) bytes for rid (in fulltext mode: before the tag) and</span>
<a name="l01037"></a>01037 <span class="comment"> 0..4 bytes for pos,</span>
<a name="l01038"></a>01038 <span class="comment"> totalling from 4 (vsz min.) to 12 bytes.</span>
<a name="l01039"></a>01039 <span class="comment">*/</span>
<a name="l01040"></a><a class="code" href="structPtr.html">01040</a> <span class="keyword">typedef</span> <span class="keyword">struct </span>{ <span class="comment">/* where a key has a hit */</span>
<a name="l01041"></a>01041 <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> tag; <span class="comment">/* while neg. tags are allowed, sorting is unsigned */</span>
<a name="l01042"></a>01042 <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> ext; <span class="comment">/* extend row id to six bytes (used as db number) */</span>
<a name="l01043"></a>01043 <span class="keywordtype">unsigned</span> rid; <span class="comment">/* row id */</span>
<a name="l01044"></a>01044 <span class="keywordtype">unsigned</span> pos; <span class="comment">/* word pos, usually with field occ<<16 */</span>
<a name="l01045"></a>01045 } <a class="code" href="structPtr.html">Ptr</a>;
<a name="l01046"></a>01046
<a name="l01047"></a>01047 <span class="keyword">enum</span> {
<a name="l01048"></a>01048 QDX_TAGMSK = 0xC0, <span class="comment">/* mask length of tag 0..2 */</span>
<a name="l01049"></a>01049 QDX_TAG1 = 0x40,
<a name="l01050"></a>01050 QDX_TAG2 = 0x80,
<a name="l01051"></a>01051 QDX_TAGSH = 6, <span class="comment">/* ... shifted by 6 */</span>
<a name="l01052"></a>01052 QDX_RIDMSK = 0x30, <span class="comment">/* mask length of rid 0..3 */</span>
<a name="l01053"></a>01053 QDX_RIDMIN = 3, <span class="comment">/* based on 3 */</span>
<a name="l01054"></a>01054 QDX_RIDSH = 4, <span class="comment">/* ... shifted by 4 */</span>
<a name="l01055"></a>01055 QDX_RID3 = 0x00,
<a name="l01056"></a>01056 QDX_RID4 = 0x10,
<a name="l01057"></a>01057 QDX_RID5 = 0x20,
<a name="l01058"></a>01058 QDX_RID6 = 0x30,
<a name="l01059"></a>01059 QDX_FULTXT = 0x08, <span class="comment">/* traditional fulltext ordering */</span>
<a name="l01060"></a>01060 QDX_POSMSK = 0x07, <span class="comment">/* mask length pos info 0..4 */</span>
<a name="l01061"></a>01061 <span class="comment">/* default settings based on 3 byte rid */</span>
<a name="l01062"></a>01062 QDX_ISIS = QDX_RID3|QDX_TAG2|QDX_FULTXT|3,
<a name="l01063"></a>01063 <span class="comment">/* 0x8B, 8 byte fulltext 3+2+3 IFP format */</span>
<a name="l01064"></a>01064 QDX_STDDB = QDX_TAG1|QDX_RID3
<a name="l01065"></a>01065 <span class="comment">/* 0x40, 4 byte 3 rid + 1 for 256 field tags */</span>
<a name="l01066"></a>01066 };
<a name="l01067"></a>01067
<a name="l01068"></a>01068 <span class="comment">/* decode a value to a pointer */</span>
<a name="l01069"></a>01069 <span class="keyword">extern</span> <span class="keywordtype">void</span> qRdVal ( <a class="code" href="structPtr.html">Ptr</a> *ptr, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *val, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> typ );
<a name="l01070"></a>01070 <span class="comment">/* create a value from hit. */</span>
<a name="l01071"></a>01071 <span class="keyword">extern</span> <span class="keywordtype">void</span> qMkVal ( <a class="code" href="structVal.html">Val</a> *val, <a class="code" href="structPtr.html">Ptr</a> *ptr, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> typ );
<a name="l01072"></a>01072 <span class="comment">/* decode a key to plaintext */</span>
<a name="l01073"></a>01073 <span class="keyword">extern</span> <span class="keywordtype">int</span> qRdKey ( <a class="code" href="structQdx.html">Qdx</a> *qdx, <span class="keywordtype">char</span> *plain, <span class="keywordtype">int</span> l, <a class="code" href="structKey.html">Key</a> *key );
<a name="l01074"></a>01074 <span class="comment">/* create a key from plaintext, truncating to ksz. */</span>
<a name="l01075"></a>01075 <span class="keyword">extern</span> <span class="keywordtype">void</span> qMkKey ( <a class="code" href="structQdx.html">Qdx</a> *qdx, <a class="code" href="structKey.html">Key</a> *key, <span class="keywordtype">char</span> *b, <span class="keywordtype">int</span> l );
<a name="l01076"></a>01076 <span class="comment">/* create a key and value from line. */</span>
<a name="l01077"></a>01077 <span class="keyword">extern</span> <span class="keywordtype">int</span> qMkKeyVal ( <a class="code" href="structQdx.html">Qdx</a> *qdx, <a class="code" href="structKey.html">Key</a> *key, <span class="keywordtype">char</span> *b, <span class="keywordtype">int</span> l );
<a name="l01078"></a>01078
<a name="l01079"></a>01079
<a name="l01080"></a><a class="code" href="structQSet.html">01080</a> <span class="keyword">typedef</span> <span class="keyword">struct </span>{
<a name="l01081"></a>01081 <a class="code" href="structQdx.html">Qdx</a> *qdx;
<a name="l01082"></a>01082 <span class="keywordtype">int</span> del;
<a name="l01083"></a>01083 <a class="code" href="structKey.html">Key</a> pfx;
<a name="l01084"></a>01084 <a class="code" href="structPtr.html">Ptr</a> ptr;
<a name="l01085"></a>01085 } <a class="code" href="structQSet.html">QSet</a>;
<a name="l01086"></a>01086 <span class="comment">/*</span>
<a name="l01087"></a>01087 <span class="comment"> set or del one keys</span>
<a name="l01088"></a>01088 <span class="comment"> basically this behaves like qMkKey, qMkVal, qSet</span>
<a name="l01089"></a>01089 <span class="comment"> ptr.pos is incremented</span>
<a name="l01090"></a>01090 <span class="comment"> with pfx, pfx is prepended to the key (before qMkKey)</span>
<a name="l01091"></a>01091 <span class="comment">*/</span>
<a name="l01092"></a>01092 <span class="keyword">extern</span> <span class="keywordtype">int</span> qSetKeyVal (<a class="code" href="structQSet.html">QSet</a> *qst, <span class="keywordtype">char</span> *val, <span class="keywordtype">int</span> len);
<a name="l01093"></a>01093 <span class="comment">/*</span>
<a name="l01094"></a>01094 <span class="comment"> split the value into words and qSetKeyVal each</span>
<a name="l01095"></a>01095 <span class="comment"> return the number of entries made</span>
<a name="l01096"></a>01096 <span class="comment">*/</span>
<a name="l01097"></a>01097 <span class="keyword">extern</span> <span class="keywordtype">int</span> qSetKeyVals (<a class="code" href="structQSet.html">QSet</a> *qst, <span class="keywordtype">char</span> *val, <span class="keywordtype">int</span> len);
<a name="l01098"></a>01098
<a name="l01099"></a>01099
<a name="l01103"></a>01103 <span class="preprocessor">#define CDX_MAXSEQ 15 </span><span class="comment">/* max byte sequence length */</span>
<a name="l01104"></a>01104
<a name="l01105"></a>01105
<a name="l01106"></a>01106 <span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="structCdx.html">Cdx</a> *cOpen ( <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *src );
<a name="l01107"></a>01107 <span class="keyword">extern</span> <span class="keywordtype">int</span> cEnc ( <span class="keyword">const</span> <a class="code" href="structCdx.html">Cdx</a> *cdx, <a class="code" href="structKey.html">Key</a> *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *b, <span class="keywordtype">int</span> l, <span class="keywordtype">int</span> w );
<a name="l01108"></a>01108 <span class="keyword">extern</span> <span class="keywordtype">int</span> cDec ( <span class="keyword">const</span> <a class="code" href="structCdx.html">Cdx</a> *cdx, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *b, <span class="keywordtype">int</span> l, <a class="code" href="structKey.html">Key</a> *key );
<a name="l01109"></a>01109
<a name="l01110"></a>01110
<a name="l01111"></a>01111 <span class="keyword">enum</span> { <span class="comment">/* see Metadata.txt */</span>
<a name="l01112"></a>01112 MET_OPT = 001,
<a name="l01113"></a>01113 MET_UNU = 002,
<a name="l01114"></a>01114 MET_CTP = 003,
<a name="l01115"></a>01115 MET_COL = 004,
<a name="l01116"></a>01116 MET_VER = 005,
<a name="l01117"></a>01117 MET_FLD = 006
<a name="l01118"></a>01118 };
<a name="l01119"></a>01119
<a name="l01123"></a><a class="code" href="structDb.html">01123</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structDb.html">Db</a> {
<a name="l01124"></a>01124 <span class="keywordtype">char</span> *nam;
<a name="l01125"></a>01125 <span class="keywordtype">char</span> *pat;
<a name="l01126"></a>01126 <span class="keywordtype">int</span> flg;
<a name="l01127"></a>01127 <span class="keywordtype">int</span> mnt; <span class="comment">/* mount count */</span>
<a name="l01128"></a>01128 <span class="keyword">struct </span><a class="code" href="structDb.html">Db</a> *nxt; <span class="comment">/* linked list */</span>
<a name="l01129"></a>01129 <span class="keyword">const</span> <a class="code" href="structFld.html">Fld</a> *opt; <span class="comment">/* inner meta data */</span>
<a name="l01130"></a>01130 <a class="code" href="structRdx.html">Rdx</a> rdx;
<a name="l01131"></a>01131 <a class="code" href="structQdx.html">Qdx</a> qdx;
<a name="l01132"></a>01132 } <a class="code" href="structDb.html">Db</a>;
<a name="l01133"></a>01133
<a name="l01134"></a>01134 <span class="keyword">extern</span> <a class="code" href="structDb.html">Db</a> *dOpen (<span class="keyword">const</span> <span class="keywordtype">char</span> *dbname);
<a name="l01135"></a>01135 <span class="keyword">extern</span> <span class="keywordtype">void</span> dClose (<a class="code" href="structDb.html">Db</a> *db);
<a name="l01136"></a>01136 <span class="keyword">extern</span> <span class="keywordtype">void</span> dCloseAll ();
<a name="l01137"></a>01137
<a name="l01143"></a>01143 <span class="preprocessor">#define dRead(l,db,rid) ((rid)?rRead(l,&(db)->rdx,rid,0):lCpy(l,(db)->opt,0))</span>
<a name="l01144"></a>01144 <span class="preprocessor"></span><span class="preprocessor">#define dWrite(db,r,rid) rWrite(&(db)->rdx,r,rid,-1,0)</span>
<a name="l01145"></a>01145 <span class="preprocessor"></span>
<a name="l01146"></a>01146 <span class="preprocessor">#define dSet(db,key) qSet(&(db)->qdx,key)</span>
<a name="l01147"></a>01147 <span class="preprocessor"></span><span class="preprocessor">#define dDel(db,key) qDel(&(db)->qdx,key)</span>
<a name="l01148"></a>01148 <span class="preprocessor"></span><span class="preprocessor">#define dLoop(db,ql) ((ql)->qdx=&(db)->qdx, qLoop(ql))</span>
<a name="l01149"></a>01149 <span class="preprocessor"></span>
<a name="l01150"></a>01150 <span class="preprocessor">#define CORE_H</span>
<a name="l01151"></a>01151 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* CORE_H */</span>
</pre></div></div>
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