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<h1>src/libsphinxbase/util/pio.c</h1> </div>
</div>
<div class="contents">
<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */</span>
<a name="l00002"></a>00002 <span class="comment">/* ====================================================================</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (c) 1999-2004 Carnegie Mellon University. All rights</span>
<a name="l00004"></a>00004 <span class="comment"> * reserved.</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * Redistribution and use in source and binary forms, with or without</span>
<a name="l00007"></a>00007 <span class="comment"> * modification, are permitted provided that the following conditions</span>
<a name="l00008"></a>00008 <span class="comment"> * are met:</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span>
<a name="l00011"></a>00011 <span class="comment"> * notice, this list of conditions and the following disclaimer. </span>
<a name="l00012"></a>00012 <span class="comment"> *</span>
<a name="l00013"></a>00013 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span>
<a name="l00014"></a>00014 <span class="comment"> * notice, this list of conditions and the following disclaimer in</span>
<a name="l00015"></a>00015 <span class="comment"> * the documentation and/or other materials provided with the</span>
<a name="l00016"></a>00016 <span class="comment"> * distribution.</span>
<a name="l00017"></a>00017 <span class="comment"> *</span>
<a name="l00018"></a>00018 <span class="comment"> * This work was supported in part by funding from the Defense Advanced </span>
<a name="l00019"></a>00019 <span class="comment"> * Research Projects Agency and the National Science Foundation of the </span>
<a name="l00020"></a>00020 <span class="comment"> * United States of America, and the CMU Sphinx Speech Consortium.</span>
<a name="l00021"></a>00021 <span class="comment"> *</span>
<a name="l00022"></a>00022 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND </span>
<a name="l00023"></a>00023 <span class="comment"> * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, </span>
<a name="l00024"></a>00024 <span class="comment"> * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR</span>
<a name="l00025"></a>00025 <span class="comment"> * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY</span>
<a name="l00026"></a>00026 <span class="comment"> * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00027"></a>00027 <span class="comment"> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT </span>
<a name="l00028"></a>00028 <span class="comment"> * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, </span>
<a name="l00029"></a>00029 <span class="comment"> * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY </span>
<a name="l00030"></a>00030 <span class="comment"> * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT </span>
<a name="l00031"></a>00031 <span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE </span>
<a name="l00032"></a>00032 <span class="comment"> * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00033"></a>00033 <span class="comment"> *</span>
<a name="l00034"></a>00034 <span class="comment"> * ====================================================================</span>
<a name="l00035"></a>00035 <span class="comment"> *</span>
<a name="l00036"></a>00036 <span class="comment"> */</span>
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="preprocessor">#include <config.h></span>
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="preprocessor">#include <stdio.h></span>
<a name="l00041"></a>00041 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00042"></a>00042 <span class="preprocessor">#include <string.h></span>
<a name="l00043"></a>00043 <span class="preprocessor">#ifdef HAVE_UNISTD_H</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="preprocessor">#include <unistd.h></span>
<a name="l00045"></a>00045 <span class="preprocessor">#endif</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_SYS_STAT_H</span>
<a name="l00047"></a>00047 <span class="preprocessor"></span><span class="preprocessor">#include <sys/stat.h></span>
<a name="l00048"></a>00048 <span class="preprocessor">#endif</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_SYS_TYPES_H</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="preprocessor">#include <sys/types.h></span>
<a name="l00051"></a>00051 <span class="preprocessor">#endif</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span><span class="preprocessor">#include <assert.h></span>
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="preprocessor">#include "sphinxbase/pio.h"</span>
<a name="l00055"></a>00055 <span class="preprocessor">#include "sphinxbase/filename.h"</span>
<a name="l00056"></a>00056 <span class="preprocessor">#include "sphinxbase/err.h"</span>
<a name="l00057"></a>00057 <span class="preprocessor">#include "sphinxbase/strfuncs.h"</span>
<a name="l00058"></a>00058 <span class="preprocessor">#include "sphinxbase/ckd_alloc.h"</span>
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="preprocessor">#ifndef EXEEXT</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span><span class="preprocessor">#define EXEEXT ""</span>
<a name="l00062"></a>00062 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span>
<a name="l00064"></a>00064 <span class="keyword">enum</span> {
<a name="l00065"></a>00065 COMP_NONE,
<a name="l00066"></a>00066 COMP_COMPRESS,
<a name="l00067"></a>00067 COMP_GZIP,
<a name="l00068"></a>00068 COMP_BZIP2
<a name="l00069"></a>00069 };
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00072"></a>00072 guess_comptype(<span class="keywordtype">char</span> <span class="keyword">const</span> *file, int32 *ispipe, int32 *isgz)
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074 <span class="keywordtype">int</span> k;
<a name="l00075"></a>00075
<a name="l00076"></a>00076 k = strlen(file);
<a name="l00077"></a>00077 *ispipe = 0;
<a name="l00078"></a>00078 *isgz = COMP_NONE;
<a name="l00079"></a>00079 <span class="keywordflow">if</span> ((k > 2)
<a name="l00080"></a>00080 && ((strcmp(file + k - 2, <span class="stringliteral">".Z"</span>) == 0)
<a name="l00081"></a>00081 || (strcmp(file + k - 2, <span class="stringliteral">".z"</span>) == 0))) {
<a name="l00082"></a>00082 *ispipe = 1;
<a name="l00083"></a>00083 *isgz = COMP_COMPRESS;
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((k > 3) && ((strcmp(file + k - 3, <span class="stringliteral">".gz"</span>) == 0)
<a name="l00086"></a>00086 || (strcmp(file + k - 3, <span class="stringliteral">".GZ"</span>) == 0))) {
<a name="l00087"></a>00087 *ispipe = 1;
<a name="l00088"></a>00088 *isgz = COMP_GZIP;
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((k > 4) && ((strcmp(file + k - 4, <span class="stringliteral">".bz2"</span>) == 0)
<a name="l00091"></a>00091 || (strcmp(file + k - 4, <span class="stringliteral">".BZ2"</span>) == 0))) {
<a name="l00092"></a>00092 *ispipe = 1;
<a name="l00093"></a>00093 *isgz = COMP_BZIP2;
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095 }
<a name="l00096"></a>00096
<a name="l00097"></a>00097 FILE *
<a name="l00098"></a><a class="code" href="pio_8h.html#aa3d71506049eb49cf03eff1b89ef281f">00098</a> <a class="code" href="pio_8h.html#aa3d71506049eb49cf03eff1b89ef281f" title="Like fopen, but use popen and zcat if it is determined that &quot;file&quot; is compressed (i...">fopen_comp</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *file, <span class="keyword">const</span> <span class="keywordtype">char</span> *mode, int32 * ispipe)
<a name="l00099"></a>00099 {
<a name="l00100"></a>00100 FILE *fp;
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="preprocessor">#ifndef HAVE_POPEN</span>
<a name="l00103"></a>00103 <span class="preprocessor"></span> *ispipe = 0; <span class="comment">/* No popen() on WinCE */</span>
<a name="l00104"></a>00104 <span class="preprocessor">#else </span><span class="comment">/* HAVE_POPEN */</span>
<a name="l00105"></a>00105 int32 isgz;
<a name="l00106"></a>00106 guess_comptype(file, ispipe, &isgz);
<a name="l00107"></a>00107 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_POPEN */</span>
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="keywordflow">if</span> (*ispipe) {
<a name="l00110"></a>00110 <span class="preprocessor">#ifndef HAVE_POPEN</span>
<a name="l00111"></a>00111 <span class="preprocessor"></span> <span class="comment">/* Shouldn't get here, anyway */</span>
<a name="l00112"></a>00112 <a class="code" href="err_8h.html#a1a4495946ab2449d61108fe829a94613" title="Exit with non-zero status after error message.">E_FATAL</a>(<span class="stringliteral">"No popen() on WinCE\n"</span>);
<a name="l00113"></a>00113 <span class="preprocessor">#else</span>
<a name="l00114"></a>00114 <span class="preprocessor"></span> <span class="keywordflow">if</span> (strcmp(mode, <span class="stringliteral">"r"</span>) == 0) {
<a name="l00115"></a>00115 <span class="keywordtype">char</span> *command;
<a name="l00116"></a>00116 <span class="keywordflow">switch</span> (isgz) {
<a name="l00117"></a>00117 <span class="keywordflow">case</span> COMP_GZIP:
<a name="l00118"></a>00118 command = <a class="code" href="strfuncs_8h.html#a317522f23d291311e366de34ef86b777" title="Concatenate a NULL-terminated argument list of strings, returning a newly allocated string...">string_join</a>(<span class="stringliteral">"gunzip"</span> EXEEXT, <span class="stringliteral">" -c "</span>, file, NULL);
<a name="l00119"></a>00119 <span class="keywordflow">break</span>;
<a name="l00120"></a>00120 <span class="keywordflow">case</span> COMP_COMPRESS:
<a name="l00121"></a>00121 command = <a class="code" href="strfuncs_8h.html#a317522f23d291311e366de34ef86b777" title="Concatenate a NULL-terminated argument list of strings, returning a newly allocated string...">string_join</a>(<span class="stringliteral">"zcat"</span> EXEEXT, <span class="stringliteral">" "</span>, file, NULL);
<a name="l00122"></a>00122 <span class="keywordflow">break</span>;
<a name="l00123"></a>00123 <span class="keywordflow">case</span> COMP_BZIP2:
<a name="l00124"></a>00124 command = <a class="code" href="strfuncs_8h.html#a317522f23d291311e366de34ef86b777" title="Concatenate a NULL-terminated argument list of strings, returning a newly allocated string...">string_join</a>(<span class="stringliteral">"bunzip2"</span> EXEEXT, <span class="stringliteral">" -c "</span>, file, NULL);
<a name="l00125"></a>00125 <span class="keywordflow">break</span>;
<a name="l00126"></a>00126 <span class="keywordflow">default</span>:
<a name="l00127"></a>00127 command = NULL; <span class="comment">/* Make compiler happy. */</span>
<a name="l00128"></a>00128 <a class="code" href="err_8h.html#a1a4495946ab2449d61108fe829a94613" title="Exit with non-zero status after error message.">E_FATAL</a>(<span class="stringliteral">"Unknown compression type %d\n"</span>, isgz);
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130 <span class="keywordflow">if</span> ((fp = popen(command, mode)) == NULL) {
<a name="l00131"></a>00131 <a class="code" href="err_8h.html#a54ffbfe898d74595c586a1f48f32ef03" title="Print error text; Call perror(&quot;&quot;);.">E_ERROR_SYSTEM</a>(<span class="stringliteral">"popen (%s,%s) failed\n"</span>, command, mode);
<a name="l00132"></a>00132 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(command);
<a name="l00133"></a>00133 <span class="keywordflow">return</span> NULL;
<a name="l00134"></a>00134 }
<a name="l00135"></a>00135 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(command);
<a name="l00136"></a>00136 }
<a name="l00137"></a>00137 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (strcmp(mode, <span class="stringliteral">"w"</span>) == 0) {
<a name="l00138"></a>00138 <span class="keywordtype">char</span> *command;
<a name="l00139"></a>00139 <span class="keywordflow">switch</span> (isgz) {
<a name="l00140"></a>00140 <span class="keywordflow">case</span> COMP_GZIP:
<a name="l00141"></a>00141 command = <a class="code" href="strfuncs_8h.html#a317522f23d291311e366de34ef86b777" title="Concatenate a NULL-terminated argument list of strings, returning a newly allocated string...">string_join</a>(<span class="stringliteral">"gzip"</span> EXEEXT, <span class="stringliteral">" > "</span>, file, NULL);
<a name="l00142"></a>00142 <span class="keywordflow">break</span>;
<a name="l00143"></a>00143 <span class="keywordflow">case</span> COMP_COMPRESS:
<a name="l00144"></a>00144 command = <a class="code" href="strfuncs_8h.html#a317522f23d291311e366de34ef86b777" title="Concatenate a NULL-terminated argument list of strings, returning a newly allocated string...">string_join</a>(<span class="stringliteral">"compress"</span> EXEEXT, <span class="stringliteral">" -c > "</span>, file, NULL);
<a name="l00145"></a>00145 <span class="keywordflow">break</span>;
<a name="l00146"></a>00146 <span class="keywordflow">case</span> COMP_BZIP2:
<a name="l00147"></a>00147 command = <a class="code" href="strfuncs_8h.html#a317522f23d291311e366de34ef86b777" title="Concatenate a NULL-terminated argument list of strings, returning a newly allocated string...">string_join</a>(<span class="stringliteral">"bzip2"</span> EXEEXT, <span class="stringliteral">" > "</span>, file, NULL);
<a name="l00148"></a>00148 <span class="keywordflow">break</span>;
<a name="l00149"></a>00149 <span class="keywordflow">default</span>:
<a name="l00150"></a>00150 command = NULL; <span class="comment">/* Make compiler happy. */</span>
<a name="l00151"></a>00151 <a class="code" href="err_8h.html#a1a4495946ab2449d61108fe829a94613" title="Exit with non-zero status after error message.">E_FATAL</a>(<span class="stringliteral">"Unknown compression type %d\n"</span>, isgz);
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153 <span class="keywordflow">if</span> ((fp = popen(command, mode)) == NULL) {
<a name="l00154"></a>00154 <a class="code" href="err_8h.html#a54ffbfe898d74595c586a1f48f32ef03" title="Print error text; Call perror(&quot;&quot;);.">E_ERROR_SYSTEM</a>(<span class="stringliteral">"popen (%s,%s) failed\n"</span>, command, mode);
<a name="l00155"></a>00155 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(command);
<a name="l00156"></a>00156 <span class="keywordflow">return</span> NULL;
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(command);
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160 <span class="keywordflow">else</span> {
<a name="l00161"></a>00161 <a class="code" href="err_8h.html#a5f7b2f58f5a663a6bdd51f197ae21993" title="Print error message to standard error stream.">E_ERROR</a>(<span class="stringliteral">"fopen_comp not implemented for mode = %s\n"</span>, mode);
<a name="l00162"></a>00162 <span class="keywordflow">return</span> NULL;
<a name="l00163"></a>00163 }
<a name="l00164"></a>00164 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_POPEN */</span>
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166 <span class="keywordflow">else</span> {
<a name="l00167"></a>00167 fp = fopen(file, mode);
<a name="l00168"></a>00168 }
<a name="l00169"></a>00169
<a name="l00170"></a>00170 <span class="keywordflow">return</span> (fp);
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172
<a name="l00173"></a>00173
<a name="l00174"></a>00174 <span class="keywordtype">void</span>
<a name="l00175"></a><a class="code" href="pio_8h.html#a87592c3a2d0a00eed9eda014950beb65">00175</a> <a class="code" href="pio_8h.html#a87592c3a2d0a00eed9eda014950beb65" title="Close a file opened using fopen_comp.">fclose_comp</a>(FILE * fp, int32 ispipe)
<a name="l00176"></a>00176 {
<a name="l00177"></a>00177 <span class="keywordflow">if</span> (ispipe) {
<a name="l00178"></a>00178 <span class="preprocessor">#ifdef HAVE_POPEN</span>
<a name="l00179"></a>00179 <span class="preprocessor"></span><span class="preprocessor">#if defined(_WIN32) && (!defined(__SYMBIAN32__))</span>
<a name="l00180"></a>00180 <span class="preprocessor"></span> _pclose(fp);
<a name="l00181"></a>00181 <span class="preprocessor">#else</span>
<a name="l00182"></a>00182 <span class="preprocessor"></span> pclose(fp);
<a name="l00183"></a>00183 <span class="preprocessor">#endif</span>
<a name="l00184"></a>00184 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00185"></a>00185 <span class="preprocessor"></span> }
<a name="l00186"></a>00186 <span class="keywordflow">else</span>
<a name="l00187"></a>00187 fclose(fp);
<a name="l00188"></a>00188 }
<a name="l00189"></a>00189
<a name="l00190"></a>00190
<a name="l00191"></a>00191 FILE *
<a name="l00192"></a><a class="code" href="pio_8h.html#addfd26392f118f811584721b8d4854ce">00192</a> <a class="code" href="pio_8h.html#addfd26392f118f811584721b8d4854ce" title="Open a file for reading, but if file not present try to open compressed version (if file is uncompres...">fopen_compchk</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *file, int32 * ispipe)
<a name="l00193"></a>00193 {
<a name="l00194"></a>00194 <span class="preprocessor">#ifndef HAVE_POPEN</span>
<a name="l00195"></a>00195 <span class="preprocessor"></span> *ispipe = 0; <span class="comment">/* No popen() on WinCE */</span>
<a name="l00196"></a>00196 <span class="comment">/* And therefore the rest of this function is useless. */</span>
<a name="l00197"></a>00197 <span class="keywordflow">return</span> (<a class="code" href="pio_8h.html#aa3d71506049eb49cf03eff1b89ef281f" title="Like fopen, but use popen and zcat if it is determined that &quot;file&quot; is compressed (i...">fopen_comp</a>(file, <span class="stringliteral">"r"</span>, ispipe));
<a name="l00198"></a>00198 <span class="preprocessor">#else </span><span class="comment">/* HAVE_POPEN */</span>
<a name="l00199"></a>00199 int32 isgz;
<a name="l00200"></a>00200 FILE *fh;
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <span class="comment">/* First just try to fopen_comp() it */</span>
<a name="l00203"></a>00203 <span class="keywordflow">if</span> ((fh = <a class="code" href="pio_8h.html#aa3d71506049eb49cf03eff1b89ef281f" title="Like fopen, but use popen and zcat if it is determined that &quot;file&quot; is compressed (i...">fopen_comp</a>(file, <span class="stringliteral">"r"</span>, ispipe)) != NULL)
<a name="l00204"></a>00204 <span class="keywordflow">return</span> fh;
<a name="l00205"></a>00205 <span class="keywordflow">else</span> {
<a name="l00206"></a>00206 <span class="keywordtype">char</span> *tmpfile;
<a name="l00207"></a>00207 <span class="keywordtype">int</span> k;
<a name="l00208"></a>00208
<a name="l00209"></a>00209 <span class="comment">/* File doesn't exist; try other compressed/uncompressed form, as appropriate */</span>
<a name="l00210"></a>00210 guess_comptype(file, ispipe, &isgz);
<a name="l00211"></a>00211 k = strlen(file);
<a name="l00212"></a>00212 tmpfile = <a class="code" href="ckd__alloc_8h.html#aa00ef21903bc4f8a972488417adc8d2e" title="Macros to simplify the use of above functions.">ckd_calloc</a>(k+5, 1);
<a name="l00213"></a>00213 strcpy(tmpfile, file);
<a name="l00214"></a>00214 <span class="keywordflow">switch</span> (isgz) {
<a name="l00215"></a>00215 <span class="keywordflow">case</span> COMP_GZIP:
<a name="l00216"></a>00216 tmpfile[k - 3] = <span class="charliteral">'\0'</span>;
<a name="l00217"></a>00217 <span class="keywordflow">break</span>;
<a name="l00218"></a>00218 <span class="keywordflow">case</span> COMP_BZIP2:
<a name="l00219"></a>00219 tmpfile[k - 4] = <span class="charliteral">'\0'</span>;
<a name="l00220"></a>00220 <span class="keywordflow">break</span>;
<a name="l00221"></a>00221 <span class="keywordflow">case</span> COMP_COMPRESS:
<a name="l00222"></a>00222 tmpfile[k - 2] = <span class="charliteral">'\0'</span>;
<a name="l00223"></a>00223 <span class="keywordflow">break</span>;
<a name="l00224"></a>00224 <span class="keywordflow">case</span> COMP_NONE:
<a name="l00225"></a>00225 strcpy(tmpfile + k, <span class="stringliteral">".gz"</span>);
<a name="l00226"></a>00226 <span class="keywordflow">if</span> ((fh = <a class="code" href="pio_8h.html#aa3d71506049eb49cf03eff1b89ef281f" title="Like fopen, but use popen and zcat if it is determined that &quot;file&quot; is compressed (i...">fopen_comp</a>(tmpfile, <span class="stringliteral">"r"</span>, ispipe)) != NULL) {
<a name="l00227"></a>00227 <a class="code" href="err_8h.html#a6a794bec721b555ac1f2167f9e12f662" title="Print warning information to standard error stream.">E_WARN</a>(<span class="stringliteral">"Using %s instead of %s\n"</span>, tmpfile, file);
<a name="l00228"></a>00228 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(tmpfile);
<a name="l00229"></a>00229 <span class="keywordflow">return</span> fh;
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231 strcpy(tmpfile + k, <span class="stringliteral">".bz2"</span>);
<a name="l00232"></a>00232 <span class="keywordflow">if</span> ((fh = <a class="code" href="pio_8h.html#aa3d71506049eb49cf03eff1b89ef281f" title="Like fopen, but use popen and zcat if it is determined that &quot;file&quot; is compressed (i...">fopen_comp</a>(tmpfile, <span class="stringliteral">"r"</span>, ispipe)) != NULL) {
<a name="l00233"></a>00233 <a class="code" href="err_8h.html#a6a794bec721b555ac1f2167f9e12f662" title="Print warning information to standard error stream.">E_WARN</a>(<span class="stringliteral">"Using %s instead of %s\n"</span>, tmpfile, file);
<a name="l00234"></a>00234 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(tmpfile);
<a name="l00235"></a>00235 <span class="keywordflow">return</span> fh;
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237 strcpy(tmpfile + k, <span class="stringliteral">".Z"</span>);
<a name="l00238"></a>00238 <span class="keywordflow">if</span> ((fh = <a class="code" href="pio_8h.html#aa3d71506049eb49cf03eff1b89ef281f" title="Like fopen, but use popen and zcat if it is determined that &quot;file&quot; is compressed (i...">fopen_comp</a>(tmpfile, <span class="stringliteral">"r"</span>, ispipe)) != NULL) {
<a name="l00239"></a>00239 <a class="code" href="err_8h.html#a6a794bec721b555ac1f2167f9e12f662" title="Print warning information to standard error stream.">E_WARN</a>(<span class="stringliteral">"Using %s instead of %s\n"</span>, tmpfile, file);
<a name="l00240"></a>00240 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(tmpfile);
<a name="l00241"></a>00241 <span class="keywordflow">return</span> fh;
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(tmpfile);
<a name="l00244"></a>00244 <span class="keywordflow">return</span> NULL;
<a name="l00245"></a>00245 }
<a name="l00246"></a>00246 <a class="code" href="err_8h.html#a6a794bec721b555ac1f2167f9e12f662" title="Print warning information to standard error stream.">E_WARN</a>(<span class="stringliteral">"Using %s instead of %s\n"</span>, tmpfile, file);
<a name="l00247"></a>00247 fh = <a class="code" href="pio_8h.html#aa3d71506049eb49cf03eff1b89ef281f" title="Like fopen, but use popen and zcat if it is determined that &quot;file&quot; is compressed (i...">fopen_comp</a>(tmpfile, <span class="stringliteral">"r"</span>, ispipe);
<a name="l00248"></a>00248 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(tmpfile);
<a name="l00249"></a>00249 <span class="keywordflow">return</span> NULL;
<a name="l00250"></a>00250 }
<a name="l00251"></a>00251 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_POPEN */</span>
<a name="l00252"></a>00252 }
<a name="l00253"></a>00253
<a name="l00254"></a>00254 <a class="code" href="structlineiter__t.html" title="Line iterator for files.">lineiter_t</a> *
<a name="l00255"></a><a class="code" href="pio_8h.html#a22d0125ab198f02f8bbe543417d99566">00255</a> <a class="code" href="pio_8h.html#a22d0125ab198f02f8bbe543417d99566" title="Start reading lines from a file.">lineiter_start</a>(FILE *fh)
<a name="l00256"></a>00256 {
<a name="l00257"></a>00257 <a class="code" href="structlineiter__t.html" title="Line iterator for files.">lineiter_t</a> *li;
<a name="l00258"></a>00258
<a name="l00259"></a>00259 li = <a class="code" href="ckd__alloc_8h.html#aa00ef21903bc4f8a972488417adc8d2e" title="Macros to simplify the use of above functions.">ckd_calloc</a>(1, <span class="keyword">sizeof</span>(*li));
<a name="l00260"></a>00260 li->buf = <a class="code" href="ckd__alloc_8h.html#a8e89a31c3c70710a8e023a177084bff2" title="Macro for __ckd_malloc__.">ckd_malloc</a>(128);
<a name="l00261"></a>00261 li->buf[0] = <span class="charliteral">'\0'</span>;
<a name="l00262"></a>00262 li->bsiz = 128;
<a name="l00263"></a>00263 li->len = 0;
<a name="l00264"></a>00264 li->fh = fh;
<a name="l00265"></a>00265
<a name="l00266"></a>00266 <span class="keywordflow">return</span> <a class="code" href="pio_8h.html#aff8df0b6928746d61b3520555263f71e" title="Move to the next line in the file.">lineiter_next</a>(li);
<a name="l00267"></a>00267 }
<a name="l00268"></a>00268
<a name="l00269"></a>00269 <a class="code" href="structlineiter__t.html" title="Line iterator for files.">lineiter_t</a> *
<a name="l00270"></a><a class="code" href="pio_8h.html#aff8df0b6928746d61b3520555263f71e">00270</a> <a class="code" href="pio_8h.html#aff8df0b6928746d61b3520555263f71e" title="Move to the next line in the file.">lineiter_next</a>(<a class="code" href="structlineiter__t.html" title="Line iterator for files.">lineiter_t</a> *li)
<a name="l00271"></a>00271 {
<a name="l00272"></a>00272 <span class="comment">/* Read a line and check for EOF. */</span>
<a name="l00273"></a>00273 <span class="keywordflow">if</span> (fgets(li->buf, li->bsiz, li->fh) == NULL) {
<a name="l00274"></a>00274 <a class="code" href="pio_8h.html#a3f80e5d4d666426cef229dd41237d9cf" title="Stop reading lines from a file.">lineiter_free</a>(li);
<a name="l00275"></a>00275 <span class="keywordflow">return</span> NULL;
<a name="l00276"></a>00276 }
<a name="l00277"></a>00277 <span class="comment">/* If we managed to read the whole thing, then we are done</span>
<a name="l00278"></a>00278 <span class="comment"> * (this will be by far the most common result). */</span>
<a name="l00279"></a>00279 li->len = strlen(li->buf);
<a name="l00280"></a>00280 <span class="keywordflow">if</span> (li->len < li->bsiz - 1 || li->buf[li->len - 1] == <span class="charliteral">'\n'</span>)
<a name="l00281"></a>00281 <span class="keywordflow">return</span> li;
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="comment">/* Otherwise we have to reallocate and keep going. */</span>
<a name="l00284"></a>00284 <span class="keywordflow">while</span> (1) {
<a name="l00285"></a>00285 li->bsiz *= 2;
<a name="l00286"></a>00286 li->buf = <a class="code" href="ckd__alloc_8h.html#afd496738b3e114bd494c5a0955f1bfb3" title="Macro for __ckd_realloc__.">ckd_realloc</a>(li->buf, li->bsiz);
<a name="l00287"></a>00287 <span class="comment">/* If we get an EOF, we are obviously done. */</span>
<a name="l00288"></a>00288 <span class="keywordflow">if</span> (fgets(li->buf + li->len, li->bsiz - li->len, li->fh) == NULL) {
<a name="l00289"></a>00289 li->len += strlen(li->buf + li->len);
<a name="l00290"></a>00290 <span class="keywordflow">return</span> li;
<a name="l00291"></a>00291 }
<a name="l00292"></a>00292 li->len += strlen(li->buf + li->len);
<a name="l00293"></a>00293 <span class="comment">/* If we managed to read the whole thing, then we are done. */</span>
<a name="l00294"></a>00294 <span class="keywordflow">if</span> (li->len < li->bsiz - 1 || li->buf[li->len - 1] == <span class="charliteral">'\n'</span>)
<a name="l00295"></a>00295 <span class="keywordflow">return</span> li;
<a name="l00296"></a>00296 }
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="comment">/* Shouldn't get here. */</span>
<a name="l00299"></a>00299 <span class="keywordflow">return</span> li;
<a name="l00300"></a>00300 }
<a name="l00301"></a>00301
<a name="l00302"></a>00302 <span class="keywordtype">void</span>
<a name="l00303"></a><a class="code" href="pio_8h.html#a3f80e5d4d666426cef229dd41237d9cf">00303</a> <a class="code" href="pio_8h.html#a3f80e5d4d666426cef229dd41237d9cf" title="Stop reading lines from a file.">lineiter_free</a>(<a class="code" href="structlineiter__t.html" title="Line iterator for files.">lineiter_t</a> *li)
<a name="l00304"></a>00304 {
<a name="l00305"></a>00305 <span class="keywordflow">if</span> (li == NULL)
<a name="l00306"></a>00306 <span class="keywordflow">return</span>;
<a name="l00307"></a>00307 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(li->buf);
<a name="l00308"></a>00308 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(li);
<a name="l00309"></a>00309 }
<a name="l00310"></a>00310
<a name="l00311"></a>00311 <span class="keywordtype">char</span> *
<a name="l00312"></a><a class="code" href="pio_8h.html#a11e0daa4f315d01c2e030d3a0abe702c">00312</a> <a class="code" href="pio_8h.html#a11e0daa4f315d01c2e030d3a0abe702c" title="Read a line of arbitrary length from a file and return it as a newly allocated string.">fread_line</a>(FILE *stream, <span class="keywordtype">size_t</span> *out_len)
<a name="l00313"></a>00313 {
<a name="l00314"></a>00314 <span class="keywordtype">char</span> *output, *outptr;
<a name="l00315"></a>00315 <span class="keywordtype">char</span> buf[128];
<a name="l00316"></a>00316
<a name="l00317"></a>00317 output = outptr = NULL;
<a name="l00318"></a>00318 <span class="keywordflow">while</span> (fgets(buf, <span class="keyword">sizeof</span>(buf), stream)) {
<a name="l00319"></a>00319 <span class="keywordtype">size_t</span> len = strlen(buf);
<a name="l00320"></a>00320 <span class="comment">/* Append this data to the buffer. */</span>
<a name="l00321"></a>00321 <span class="keywordflow">if</span> (output == NULL) {
<a name="l00322"></a>00322 output = <a class="code" href="ckd__alloc_8h.html#a8e89a31c3c70710a8e023a177084bff2" title="Macro for __ckd_malloc__.">ckd_malloc</a>(len + 1);
<a name="l00323"></a>00323 outptr = output;
<a name="l00324"></a>00324 }
<a name="l00325"></a>00325 <span class="keywordflow">else</span> {
<a name="l00326"></a>00326 <span class="keywordtype">size_t</span> cur = outptr - output;
<a name="l00327"></a>00327 output = <a class="code" href="ckd__alloc_8h.html#afd496738b3e114bd494c5a0955f1bfb3" title="Macro for __ckd_realloc__.">ckd_realloc</a>(output, cur + len + 1);
<a name="l00328"></a>00328 outptr = output + cur;
<a name="l00329"></a>00329 }
<a name="l00330"></a>00330 memcpy(outptr, buf, len + 1);
<a name="l00331"></a>00331 outptr += len;
<a name="l00332"></a>00332 <span class="comment">/* Stop on a short read or end of line. */</span>
<a name="l00333"></a>00333 <span class="keywordflow">if</span> (len < <span class="keyword">sizeof</span>(buf)-1 || buf[len-1] == <span class="charliteral">'\n'</span>)
<a name="l00334"></a>00334 <span class="keywordflow">break</span>;
<a name="l00335"></a>00335 }
<a name="l00336"></a>00336 <span class="keywordflow">if</span> (out_len) *out_len = outptr - output;
<a name="l00337"></a>00337 <span class="keywordflow">return</span> output;
<a name="l00338"></a>00338 }
<a name="l00339"></a>00339
<a name="l00340"></a>00340
<a name="l00341"></a>00341 <span class="preprocessor">#define FREAD_RETRY_COUNT 60</span>
<a name="l00342"></a>00342 <span class="preprocessor"></span>
<a name="l00343"></a>00343 int32
<a name="l00344"></a><a class="code" href="pio_8h.html#a601277430d3221bf1906bb879ae26d3e">00344</a> <a class="code" href="pio_8h.html#a601277430d3221bf1906bb879ae26d3e" title="NFS file reads seem to fail now and then.">fread_retry</a>(<span class="keywordtype">void</span> *pointer, int32 size, int32 num_items, FILE * stream)
<a name="l00345"></a>00345 {
<a name="l00346"></a>00346 <span class="keywordtype">char</span> *data;
<a name="l00347"></a>00347 uint32 n_items_read;
<a name="l00348"></a>00348 uint32 n_items_rem;
<a name="l00349"></a>00349 uint32 n_retry_rem;
<a name="l00350"></a>00350 int32 loc;
<a name="l00351"></a>00351
<a name="l00352"></a>00352 n_retry_rem = FREAD_RETRY_COUNT;
<a name="l00353"></a>00353
<a name="l00354"></a>00354 data = pointer;
<a name="l00355"></a>00355 loc = 0;
<a name="l00356"></a>00356 n_items_rem = num_items;
<a name="l00357"></a>00357
<a name="l00358"></a>00358 <span class="keywordflow">do</span> {
<a name="l00359"></a>00359 n_items_read = fread(&data[loc], size, n_items_rem, stream);
<a name="l00360"></a>00360
<a name="l00361"></a>00361 n_items_rem -= n_items_read;
<a name="l00362"></a>00362
<a name="l00363"></a>00363 <span class="keywordflow">if</span> (n_items_rem > 0) {
<a name="l00364"></a>00364 <span class="comment">/* an incomplete read occurred */</span>
<a name="l00365"></a>00365
<a name="l00366"></a>00366 <span class="keywordflow">if</span> (n_retry_rem == 0)
<a name="l00367"></a>00367 <span class="keywordflow">return</span> -1;
<a name="l00368"></a>00368
<a name="l00369"></a>00369 <span class="keywordflow">if</span> (n_retry_rem == FREAD_RETRY_COUNT) {
<a name="l00370"></a>00370 <a class="code" href="err_8h.html#a54ffbfe898d74595c586a1f48f32ef03" title="Print error text; Call perror(&quot;&quot;);.">E_ERROR_SYSTEM</a>(<span class="stringliteral">"fread() failed; retrying...\n"</span>);
<a name="l00371"></a>00371 }
<a name="l00372"></a>00372
<a name="l00373"></a>00373 --n_retry_rem;
<a name="l00374"></a>00374
<a name="l00375"></a>00375 loc += n_items_read * size;
<a name="l00376"></a>00376 <span class="preprocessor">#ifdef HAVE_UNISTD_H</span>
<a name="l00377"></a>00377 <span class="preprocessor"></span> sleep(1);
<a name="l00378"></a>00378 <span class="preprocessor">#endif</span>
<a name="l00379"></a>00379 <span class="preprocessor"></span> }
<a name="l00380"></a>00380 } <span class="keywordflow">while</span> (n_items_rem > 0);
<a name="l00381"></a>00381
<a name="l00382"></a>00382 <span class="keywordflow">return</span> num_items;
<a name="l00383"></a>00383 }
<a name="l00384"></a>00384
<a name="l00385"></a>00385
<a name="l00386"></a>00386 <span class="comment">/* Silvio Moioli: updated to use Unicode */</span>
<a name="l00387"></a>00387 <span class="preprocessor">#ifdef _WIN32_WCE </span><span class="comment">/* No stat() on WinCE */</span>
<a name="l00388"></a>00388 int32
<a name="l00389"></a>00389 <a class="code" href="pio_8h.html#a0ba35509687e80ee65ba731c7cfcad9b" title="There is no bitstream decoder, because a stream abstraction is too slow.">stat_retry</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *file, <span class="keyword">struct</span> stat * statbuf)
<a name="l00390"></a>00390 {
<a name="l00391"></a>00391 WIN32_FIND_DATAW file_data;
<a name="l00392"></a>00392 HANDLE *h;
<a name="l00393"></a>00393 <span class="keywordtype">wchar_t</span> *wfile;
<a name="l00394"></a>00394 <span class="keywordtype">size_t</span> len;
<a name="l00395"></a>00395
<a name="l00396"></a>00396 len = mbstowcs(NULL, file, 0) + 1;
<a name="l00397"></a>00397 wfile = <a class="code" href="ckd__alloc_8h.html#aa00ef21903bc4f8a972488417adc8d2e" title="Macros to simplify the use of above functions.">ckd_calloc</a>(len, <span class="keyword">sizeof</span>(*wfile));
<a name="l00398"></a>00398 mbstowcs(wfile, file, len);
<a name="l00399"></a>00399 <span class="keywordflow">if</span> ((h = FindFirstFileW(wfile, &file_data)) == INVALID_HANDLE_VALUE) {
<a name="l00400"></a>00400 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(wfile);
<a name="l00401"></a>00401 <span class="keywordflow">return</span> -1;
<a name="l00402"></a>00402 }
<a name="l00403"></a>00403 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(wfile);
<a name="l00404"></a>00404 memset(statbuf, 0, <span class="keyword">sizeof</span>(statbuf));
<a name="l00405"></a>00405 statbuf->st_mtime = file_data.ftLastWriteTime.dwLowDateTime;
<a name="l00406"></a>00406 statbuf->st_size = file_data.nFileSizeLow;
<a name="l00407"></a>00407 FindClose(h);
<a name="l00408"></a>00408
<a name="l00409"></a>00409 <span class="keywordflow">return</span> 0;
<a name="l00410"></a>00410 }
<a name="l00411"></a>00411
<a name="l00412"></a>00412
<a name="l00413"></a>00413 int32
<a name="l00414"></a>00414 <a class="code" href="pio_8h.html#a289e3a1582ab60563ae0689979992669" title="Return time of last modification for the given file, or -1 if stat fails.">stat_mtime</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *file)
<a name="l00415"></a>00415 {
<a name="l00416"></a>00416 <span class="keyword">struct </span>stat statbuf;
<a name="l00417"></a>00417
<a name="l00418"></a>00418 <span class="keywordflow">if</span> (<a class="code" href="pio_8h.html#a0ba35509687e80ee65ba731c7cfcad9b" title="There is no bitstream decoder, because a stream abstraction is too slow.">stat_retry</a>(file, &statbuf) != 0)
<a name="l00419"></a>00419 <span class="keywordflow">return</span> -1;
<a name="l00420"></a>00420
<a name="l00421"></a>00421 <span class="keywordflow">return</span> ((int32) statbuf.st_mtime);
<a name="l00422"></a>00422 }
<a name="l00423"></a>00423 <span class="preprocessor">#else</span>
<a name="l00424"></a>00424 <span class="preprocessor"></span><span class="preprocessor">#define STAT_RETRY_COUNT 10</span>
<a name="l00425"></a>00425 <span class="preprocessor"></span>int32
<a name="l00426"></a><a class="code" href="pio_8h.html#a0ba35509687e80ee65ba731c7cfcad9b">00426</a> <a class="code" href="pio_8h.html#a0ba35509687e80ee65ba731c7cfcad9b" title="There is no bitstream decoder, because a stream abstraction is too slow.">stat_retry</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *file, <span class="keyword">struct</span> stat * statbuf)
<a name="l00427"></a>00427 {
<a name="l00428"></a>00428 int32 i;
<a name="l00429"></a>00429
<a name="l00430"></a>00430
<a name="l00431"></a>00431
<a name="l00432"></a>00432 <span class="keywordflow">for</span> (i = 0; i < STAT_RETRY_COUNT; i++) {
<a name="l00433"></a>00433
<a name="l00434"></a>00434 <span class="preprocessor">#ifndef HAVE_SYS_STAT_H</span>
<a name="l00435"></a>00435 <span class="preprocessor"></span> FILE *fp;
<a name="l00436"></a>00436
<a name="l00437"></a>00437 <span class="keywordflow">if</span> ((fp=(FILE *)fopen(file, <span class="stringliteral">"r"</span>))!= 0)
<a name="l00438"></a>00438 {
<a name="l00439"></a>00439 fseek( fp, 0, SEEK_END);
<a name="l00440"></a>00440 statbuf->st_size = ftell( fp );
<a name="l00441"></a>00441 fclose(fp);
<a name="l00442"></a>00442 <span class="keywordflow">return</span> 0;
<a name="l00443"></a>00443 }
<a name="l00444"></a>00444
<a name="l00445"></a>00445 <span class="preprocessor">#else </span><span class="comment">/* HAVE_SYS_STAT_H */</span>
<a name="l00446"></a>00446 <span class="keywordflow">if</span> (stat(file, statbuf) == 0)
<a name="l00447"></a>00447 <span class="keywordflow">return</span> 0;
<a name="l00448"></a>00448 <span class="preprocessor">#endif</span>
<a name="l00449"></a>00449 <span class="preprocessor"></span> <span class="keywordflow">if</span> (i == 0) {
<a name="l00450"></a>00450 <a class="code" href="err_8h.html#a54ffbfe898d74595c586a1f48f32ef03" title="Print error text; Call perror(&quot;&quot;);.">E_ERROR_SYSTEM</a>(<span class="stringliteral">"stat(%s) failed; retrying...\n"</span>, file);
<a name="l00451"></a>00451 }
<a name="l00452"></a>00452 <span class="preprocessor">#ifdef HAVE_UNISTD_H</span>
<a name="l00453"></a>00453 <span class="preprocessor"></span> sleep(1);
<a name="l00454"></a>00454 <span class="preprocessor">#endif</span>
<a name="l00455"></a>00455 <span class="preprocessor"></span> }
<a name="l00456"></a>00456
<a name="l00457"></a>00457 <span class="keywordflow">return</span> -1;
<a name="l00458"></a>00458 }
<a name="l00459"></a>00459
<a name="l00460"></a>00460 int32
<a name="l00461"></a><a class="code" href="pio_8h.html#a289e3a1582ab60563ae0689979992669">00461</a> <a class="code" href="pio_8h.html#a289e3a1582ab60563ae0689979992669" title="Return time of last modification for the given file, or -1 if stat fails.">stat_mtime</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *file)
<a name="l00462"></a>00462 {
<a name="l00463"></a>00463 <span class="keyword">struct </span>stat statbuf;
<a name="l00464"></a>00464
<a name="l00465"></a>00465 <span class="preprocessor">#ifdef HAVE_SYS_STAT_H</span>
<a name="l00466"></a>00466 <span class="preprocessor"></span> <span class="keywordflow">if</span> (stat(file, &statbuf) != 0)
<a name="l00467"></a>00467 <span class="keywordflow">return</span> -1;
<a name="l00468"></a>00468 <span class="preprocessor">#else </span><span class="comment">/* HAVE_SYS_STAT_H */</span>
<a name="l00469"></a>00469 <span class="keywordflow">if</span> (<a class="code" href="pio_8h.html#a0ba35509687e80ee65ba731c7cfcad9b" title="There is no bitstream decoder, because a stream abstraction is too slow.">stat_retry</a>(file, &statbuf) != 0)
<a name="l00470"></a>00470 <span class="keywordflow">return</span> -1;
<a name="l00471"></a>00471 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_SYS_STAT_H */</span>
<a name="l00472"></a>00472
<a name="l00473"></a>00473 <span class="keywordflow">return</span> ((int32) statbuf.st_mtime);
<a name="l00474"></a>00474 }
<a name="l00475"></a>00475 <span class="preprocessor">#endif </span><span class="comment">/* !_WIN32_WCE */</span>
<a name="l00476"></a>00476
<a name="l00477"></a><a class="code" href="structbit__encode__s.html">00477</a> <span class="keyword">struct </span><a class="code" href="structbit__encode__s.html">bit_encode_s</a> {
<a name="l00478"></a>00478 FILE *fh;
<a name="l00479"></a>00479 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> buf, bbits;
<a name="l00480"></a>00480 int16 refcount;
<a name="l00481"></a>00481 };
<a name="l00482"></a>00482
<a name="l00483"></a>00483 <a class="code" href="structbit__encode__s.html">bit_encode_t</a> *
<a name="l00484"></a><a class="code" href="pio_8h.html#a82e4694a4c13c96550f2410f8c63b1f5">00484</a> <a class="code" href="pio_8h.html#a82e4694a4c13c96550f2410f8c63b1f5" title="Attach bitstream encoder to a file.">bit_encode_attach</a>(FILE *outfh)
<a name="l00485"></a>00485 {
<a name="l00486"></a>00486 <a class="code" href="structbit__encode__s.html">bit_encode_t</a> *be;
<a name="l00487"></a>00487
<a name="l00488"></a>00488 be = <a class="code" href="ckd__alloc_8h.html#aa00ef21903bc4f8a972488417adc8d2e" title="Macros to simplify the use of above functions.">ckd_calloc</a>(1, <span class="keyword">sizeof</span>(*be));
<a name="l00489"></a>00489 be->refcount = 1;
<a name="l00490"></a>00490 be->fh = outfh;
<a name="l00491"></a>00491 <span class="keywordflow">return</span> be;
<a name="l00492"></a>00492 }
<a name="l00493"></a>00493
<a name="l00494"></a>00494 <a class="code" href="structbit__encode__s.html">bit_encode_t</a> *
<a name="l00495"></a><a class="code" href="pio_8h.html#ada6d9bb75e08493cde00d396dae088f1">00495</a> <a class="code" href="pio_8h.html#ada6d9bb75e08493cde00d396dae088f1" title="Retain pointer to a bit encoder.">bit_encode_retain</a>(<a class="code" href="structbit__encode__s.html">bit_encode_t</a> *be)
<a name="l00496"></a>00496 {
<a name="l00497"></a>00497 ++be->refcount;
<a name="l00498"></a>00498 <span class="keywordflow">return</span> be;
<a name="l00499"></a>00499 }
<a name="l00500"></a>00500
<a name="l00501"></a>00501 <span class="keywordtype">int</span>
<a name="l00502"></a><a class="code" href="pio_8h.html#a8330637520174419771670ed740c9049">00502</a> <a class="code" href="pio_8h.html#a8330637520174419771670ed740c9049" title="Release pointer to a bit encoder.">bit_encode_free</a>(<a class="code" href="structbit__encode__s.html">bit_encode_t</a> *be)
<a name="l00503"></a>00503 {
<a name="l00504"></a>00504 <span class="keywordflow">if</span> (be == NULL)
<a name="l00505"></a>00505 <span class="keywordflow">return</span> 0;
<a name="l00506"></a>00506 <span class="keywordflow">if</span> (--be->refcount > 0)
<a name="l00507"></a>00507 <span class="keywordflow">return</span> be->refcount;
<a name="l00508"></a>00508 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(be);
<a name="l00509"></a>00509
<a name="l00510"></a>00510 <span class="keywordflow">return</span> 0;
<a name="l00511"></a>00511 }
<a name="l00512"></a>00512
<a name="l00513"></a>00513 <span class="keywordtype">int</span>
<a name="l00514"></a><a class="code" href="pio_8h.html#a59d83bd5850d9ec58175c566d6d48f71">00514</a> <a class="code" href="pio_8h.html#a59d83bd5850d9ec58175c566d6d48f71" title="Write bits to encoder.">bit_encode_write</a>(<a class="code" href="structbit__encode__s.html">bit_encode_t</a> *be, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <span class="keyword">const</span> *bits, <span class="keywordtype">int</span> nbits)
<a name="l00515"></a>00515 {
<a name="l00516"></a>00516 <span class="keywordtype">int</span> tbits;
<a name="l00517"></a>00517
<a name="l00518"></a>00518 tbits = nbits + be->bbits;
<a name="l00519"></a>00519 <span class="keywordflow">if</span> (tbits < 8) {
<a name="l00520"></a>00520 <span class="comment">/* Append to buffer. */</span>
<a name="l00521"></a>00521 be->buf |= ((bits[0] >> (8 - nbits)) << (8 - tbits));
<a name="l00522"></a>00522 }
<a name="l00523"></a>00523 <span class="keywordflow">else</span> {
<a name="l00524"></a>00524 <span class="keywordtype">int</span> i = 0;
<a name="l00525"></a>00525 <span class="keywordflow">while</span> (tbits >= 8) {
<a name="l00526"></a>00526 <span class="comment">/* Shift bits out of the buffer and splice with high-order bits */</span>
<a name="l00527"></a>00527 fputc(be->buf | ((bits[i]) >> be->bbits), be->fh);
<a name="l00528"></a>00528 <span class="comment">/* Put low-order bits back into buffer */</span>
<a name="l00529"></a>00529 be->buf = (bits[i] << (8 - be->bbits)) & 0xff;
<a name="l00530"></a>00530 tbits -= 8;
<a name="l00531"></a>00531 ++i;
<a name="l00532"></a>00532 }
<a name="l00533"></a>00533 }
<a name="l00534"></a>00534 <span class="comment">/* tbits contains remaining number of bits. */</span>
<a name="l00535"></a>00535 be->bbits = tbits;
<a name="l00536"></a>00536
<a name="l00537"></a>00537 <span class="keywordflow">return</span> nbits;
<a name="l00538"></a>00538 }
<a name="l00539"></a>00539
<a name="l00540"></a>00540 <span class="keywordtype">int</span>
<a name="l00541"></a><a class="code" href="pio_8h.html#ae71dedb663c8e3ae8b91dbfbc95ac420">00541</a> <a class="code" href="pio_8h.html#ae71dedb663c8e3ae8b91dbfbc95ac420" title="Write lowest-order bits of codeword to encoder.">bit_encode_write_cw</a>(<a class="code" href="structbit__encode__s.html">bit_encode_t</a> *be, uint32 codeword, <span class="keywordtype">int</span> nbits)
<a name="l00542"></a>00542 {
<a name="l00543"></a>00543 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> bits[4];
<a name="l00544"></a>00544 codeword <<= (32 - nbits);
<a name="l00545"></a>00545 bits[0] = (codeword >> 24) & 0xff;
<a name="l00546"></a>00546 bits[1] = (codeword >> 16) & 0xff;
<a name="l00547"></a>00547 bits[2] = (codeword >> 8) & 0xff;
<a name="l00548"></a>00548 bits[3] = codeword & 0xff;
<a name="l00549"></a>00549 <span class="keywordflow">return</span> <a class="code" href="pio_8h.html#a59d83bd5850d9ec58175c566d6d48f71" title="Write bits to encoder.">bit_encode_write</a>(be, bits, nbits);
<a name="l00550"></a>00550 }
<a name="l00551"></a>00551
<a name="l00552"></a>00552 <span class="keywordtype">int</span>
<a name="l00553"></a><a class="code" href="pio_8h.html#a3e818645e567961225977a1923debc3d">00553</a> <a class="code" href="pio_8h.html#a3e818645e567961225977a1923debc3d" title="Flush any unwritten bits, zero-padding if necessary.">bit_encode_flush</a>(<a class="code" href="structbit__encode__s.html">bit_encode_t</a> *be)
<a name="l00554"></a>00554 {
<a name="l00555"></a>00555 <span class="keywordflow">if</span> (be->bbits) {
<a name="l00556"></a>00556 fputc(be->buf, be->fh);
<a name="l00557"></a>00557 be->bbits = 0;
<a name="l00558"></a>00558 }
<a name="l00559"></a>00559 <span class="keywordflow">return</span> 0;
<a name="l00560"></a>00560 }
<a name="l00561"></a>00561
<a name="l00562"></a>00562 <span class="preprocessor">#ifdef HAVE_SYS_STAT_H </span><span class="comment">/* Unix, Cygwin */</span>
<a name="l00563"></a>00563 <span class="keywordtype">int</span>
<a name="l00564"></a>00564 <a class="code" href="pio_8h.html#a6df697b8a08cd4d11fe7b864dcb99012" title="Create a directory and all of its parent directories, as needed.">build_directory</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *path)
<a name="l00565"></a>00565 {
<a name="l00566"></a>00566 <span class="keywordtype">int</span> rv;
<a name="l00567"></a>00567
<a name="l00568"></a>00568 <span class="comment">/* Utterly failed... */</span>
<a name="l00569"></a>00569 <span class="keywordflow">if</span> (strlen(path) == 0)
<a name="l00570"></a>00570 <span class="keywordflow">return</span> -1;
<a name="l00571"></a>00571 <span class="comment">/* Utterly succeeded... */</span>
<a name="l00572"></a>00572 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((rv = mkdir(path, 0777)) == 0)
<a name="l00573"></a>00573 <span class="keywordflow">return</span> 0;
<a name="l00574"></a>00574 <span class="comment">/* Or, it already exists... */</span>
<a name="l00575"></a>00575 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (errno == EEXIST)
<a name="l00576"></a>00576 <span class="keywordflow">return</span> 0;
<a name="l00577"></a>00577 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (errno != ENOENT) {
<a name="l00578"></a>00578 <a class="code" href="err_8h.html#a54ffbfe898d74595c586a1f48f32ef03" title="Print error text; Call perror(&quot;&quot;);.">E_ERROR_SYSTEM</a>(<span class="stringliteral">"Failed to create %s"</span>);
<a name="l00579"></a>00579 <span class="keywordflow">return</span> -1;
<a name="l00580"></a>00580 }
<a name="l00581"></a>00581 <span class="keywordflow">else</span> {
<a name="l00582"></a>00582 <span class="keywordtype">char</span> *dirname = <a class="code" href="ckd__alloc_8h.html#ad313f92478859f9e4ea99d0f6e78c393" title="Macro for __ckd_salloc__.">ckd_salloc</a>(path);
<a name="l00583"></a>00583 <a class="code" href="filename_8h.html#a678be92ddb74695f26a9e4f527b073b0" title="Strip off filename from the given path and copy the directory name into dir Caller must have allocate...">path2dirname</a>(path, dirname);
<a name="l00584"></a>00584 <a class="code" href="pio_8h.html#a6df697b8a08cd4d11fe7b864dcb99012" title="Create a directory and all of its parent directories, as needed.">build_directory</a>(dirname);
<a name="l00585"></a>00585 <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf" title="Test and free a 1-D array.">ckd_free</a>(dirname);
<a name="l00586"></a>00586 <span class="keywordflow">return</span> mkdir(path, 0777);
<a name="l00587"></a>00587 }
<a name="l00588"></a>00588 }
<a name="l00589"></a>00589 <span class="preprocessor">#elif defined(_WIN32)</span>
<a name="l00590"></a>00590 <span class="preprocessor"></span><span class="comment">/* FIXME: Implement this. */</span>
<a name="l00591"></a>00591 <span class="keywordtype">int</span>
<a name="l00592"></a>00592 <a class="code" href="pio_8h.html#a6df697b8a08cd4d11fe7b864dcb99012" title="Create a directory and all of its parent directories, as needed.">build_directory</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *path)
<a name="l00593"></a>00593 {
<a name="l00594"></a>00594 <a class="code" href="err_8h.html#a5f7b2f58f5a663a6bdd51f197ae21993" title="Print error message to standard error stream.">E_ERROR</a>(<span class="stringliteral">"build_directory() unimplemented on your platform!\n"</span>);
<a name="l00595"></a>00595 <span class="keywordflow">return</span> -1;
<a name="l00596"></a>00596 }
<a name="l00597"></a>00597 <span class="preprocessor">#else</span>
<a name="l00598"></a>00598 <span class="preprocessor"></span><span class="keywordtype">int</span>
<a name="l00599"></a><a class="code" href="pio_8h.html#a6df697b8a08cd4d11fe7b864dcb99012">00599</a> <a class="code" href="pio_8h.html#a6df697b8a08cd4d11fe7b864dcb99012" title="Create a directory and all of its parent directories, as needed.">build_directory</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *path)
<a name="l00600"></a>00600 {
<a name="l00601"></a>00601 <a class="code" href="err_8h.html#a5f7b2f58f5a663a6bdd51f197ae21993" title="Print error message to standard error stream.">E_ERROR</a>(<span class="stringliteral">"build_directory() unimplemented on your platform!\n"</span>);
<a name="l00602"></a>00602 <span class="keywordflow">return</span> -1;
<a name="l00603"></a>00603 }
<a name="l00604"></a>00604 <span class="preprocessor">#endif</span>
</pre></div></div>
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