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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<a class="el" href="dir_000000.html">src</a> / <a class="el" href="dir_000008.html">libemb</a></div>
<h1>emb.c</h1><a href="emb_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/*</span>
00002 <span class="comment"> * Copyright (c) 2005, 2006 by KoanLogic s.r.l. <http://www.koanlogic.com></span>
00003 <span class="comment"> * All rights reserved.</span>
00004 <span class="comment"> *</span>
00005 <span class="comment"> * This file is part of KLone, and as such it is subject to the license stated</span>
00006 <span class="comment"> * in the LICENSE file which you have received as part of this distribution.</span>
00007 <span class="comment"> *</span>
00008 <span class="comment"> * $Id: emb.c,v 1.14 2006/04/22 13:14:46 tat Exp $</span>
00009 <span class="comment"> */</span>
00010
00011 <span class="preprocessor">#include <<a class="code" href="emb_8h.html">klone/emb.h</a>></span>
00012 <span class="preprocessor">#include <<a class="code" href="io_8h.html">klone/io.h</a>></span>
00013 <span class="preprocessor">#include <<a class="code" href="codecs_8h.html">klone/codecs.h</a>></span>
00014 <span class="preprocessor">#include <u/libu.h></span>
00015
00016 <span class="comment">/* these are klone-site autogen functions */</span>
00017 <span class="keywordtype">void</span> <a class="code" href="emb_8c.html#a3">register_pages</a>(<span class="keywordtype">void</span>);
00018 <span class="keywordtype">void</span> <a class="code" href="emb_8c.html#a4">unregister_pages</a>(<span class="keywordtype">void</span>);
00019
00020 <span class="keyword">static</span> <span class="keyword">struct </span>emblist_s list; <span class="comment">/* list of emb resources */</span>
00021 <span class="keyword">static</span> size_t nres; <span class="comment">/* num of emb resources */</span>
00022 <span class="keyword">static</span> <span class="keywordtype">int</span> init = 0;
00023
<a name="l00024"></a><a class="code" href="emb_8h.html#a6">00024</a> <span class="keywordtype">int</span> <a class="code" href="emb_8c.html#a5">emb_init</a>(<span class="keywordtype">void</span>)
00025 {
00026 <span class="keywordflow">if</span>(init++ == 0)
00027 {
00028 LIST_INIT(&list); <span class="comment">/* init resource list */</span>
00029
00030 <span class="comment">/* call autogen external function (cannot be called more then once!) */</span>
00031 dbg(<span class="stringliteral">"registering embedded resources"</span>);
00032 <a class="code" href="emb_8c.html#a3">register_pages</a>();
00033 }
00034
00035 <span class="keywordflow">return</span> 0;
00036 }
00037
<a name="l00038"></a><a class="code" href="emb_8h.html#a7">00038</a> <span class="keywordtype">int</span> <a class="code" href="emb_8c.html#a6">emb_term</a>(<span class="keywordtype">void</span>)
00039 {
00040 dbg_err_if(init == 0);
00041
00042 <a class="code" href="emb_8c.html#a4">unregister_pages</a>();
00043
00044 <span class="keywordflow">return</span> 0;
00045 err:
00046 <span class="keywordflow">return</span> ~0;
00047 }
00048
<a name="l00049"></a><a class="code" href="emb_8h.html#a8">00049</a> <span class="keywordtype">int</span> <a class="code" href="emb_8h.html#a8">emb_register</a>(<a class="code" href="structembres__s.html">embres_t</a> *res)
00050 {
00051 dbg_err_if(init == 0 || res == NULL);
00052
00053 <span class="keywordflow">if</span>(res-><a class="code" href="structembres__s.html#o1">type</a> == ET_FILE)
00054 dbg(<span class="stringliteral">"registering %s (%s)"</span>, res-><a class="code" href="structembres__s.html#o0">filename</a>,
00055 ((<a class="code" href="structembfile__s.html">embfile_t</a>*)res)->comp ? <span class="stringliteral">"compressed"</span> : <span class="stringliteral">"uncompressed"</span>);
00056 <span class="keywordflow">else</span>
00057 dbg(<span class="stringliteral">"registering %s"</span>, res->filename);
00058
00059 LIST_INSERT_HEAD(&list, res, np);
00060 nres++;
00061
00062 <span class="keywordflow">return</span> 0;
00063 err:
00064 <span class="keywordflow">return</span> ~0;
00065 }
00066
<a name="l00067"></a><a class="code" href="emb_8h.html#a9">00067</a> <span class="keywordtype">int</span> <a class="code" href="emb_8h.html#a9">emb_unregister</a>(<a class="code" href="structembres__s.html">embres_t</a> *res)
00068 {
00069 dbg_err_if(init == 0 || res == NULL);
00070
00071 LIST_REMOVE(res, np);
00072 nres--;
00073
00074 <span class="keywordflow">return</span> 0;
00075 err:
00076 <span class="keywordflow">return</span> ~0;
00077 }
00078
<a name="l00079"></a><a class="code" href="emb_8h.html#a10">00079</a> <span class="keywordtype">int</span> <a class="code" href="emb_8h.html#a10">emb_lookup</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *filename, <a class="code" href="structembres__s.html">embres_t</a> **pr)
00080 {
00081 <a class="code" href="structembres__s.html">embres_t</a> *res;
00082
00083 dbg_err_if (init == 0);
00084 dbg_err_if (filename == NULL || !strlen(filename));
00085 dbg_err_if (pr == NULL);
00086
00087 LIST_FOREACH(res, &list, np)
00088 {
00089 <span class="keywordflow">if</span>(strcmp(filename, res-><a class="code" href="structembres__s.html#o0">filename</a>))
00090 <span class="keywordflow">continue</span>;
00091
00092 <span class="comment">/* save found resource pointer */</span>
00093 *pr = res;
00094
00095 <span class="keywordflow">return</span> 0; <span class="comment">/* found */</span>
00096 }
00097
00098 err:
00099 <span class="comment">/* not found */</span>
00100 <span class="keywordflow">return</span> ~0;
00101 }
00102
<a name="l00103"></a><a class="code" href="emb_8h.html#a11">00103</a> <span class="keywordtype">int</span> <a class="code" href="emb_8c.html#a10">emb_count</a>(<span class="keywordtype">void</span>)
00104 {
00105 dbg_err_if (init == 0);
00106
00107 <span class="keywordflow">return</span> nres;
00108 err:
00109 <span class="keywordflow">return</span> -1;
00110 }
00111
<a name="l00112"></a><a class="code" href="emb_8h.html#a12">00112</a> <span class="keywordtype">int</span> <a class="code" href="emb_8h.html#a12">emb_getn</a>(size_t n, <a class="code" href="structembres__s.html">embres_t</a> **pr)
00113 {
00114 <a class="code" href="structembres__s.html">embres_t</a> *res = NULL;
00115
00116 dbg_err_if (init == 0);
00117 dbg_err_if (n >= nres);
00118 dbg_err_if (pr == NULL);
00119
00120 LIST_FOREACH(res, &list, np)
00121 {
00122 <span class="keywordflow">if</span>(n-- == 0)
00123 <span class="keywordflow">break</span>;
00124 }
00125
00126 *pr = res;
00127
00128 <span class="keywordflow">return</span> 0;
00129 err:
00130 <span class="keywordflow">return</span> ~0;
00131 }
00132
<a name="l00133"></a><a class="code" href="emb_8h.html#a13">00133</a> <span class="keywordtype">int</span> <a class="code" href="emb_8h.html#a13">emb_open</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *file, <a class="code" href="structio__s.html">io_t</a> **pio)
00134 {
00135 <a class="code" href="structembfile__s.html">embfile_t</a> *e = NULL;
00136 <a class="code" href="structcodec__s.html">codec_t</a> *gzip = NULL;
00137 <a class="code" href="structio__s.html">io_t</a> *io;
00138
00139 dbg_return_if (pio == NULL, ~0);
00140 dbg_return_if (file == NULL, ~0);
00141
00142 dbg_err_if(<a class="code" href="emb_8h.html#a10">emb_lookup</a>(file, (<a class="code" href="structembres__s.html">embres_t</a>**)&e) || e->res.<a class="code" href="structembres__s.html#o1">type</a> != <a class="code" href="emb_8h.html#a14a3">ET_FILE</a>);
00143
00144 dbg_err_if(<a class="code" href="io_8h.html#a6">io_mem_create</a>((<span class="keywordtype">char</span>*)e->data, e->size, 0, &io));
00145
00146 <span class="preprocessor">#ifdef HAVE_LIBZ</span>
00147 <span class="preprocessor"></span> <span class="keywordflow">if</span>(e->comp)
00148 {
00149 dbg_err_if(<a class="code" href="group__codec__t.html#ga7">codec_gzip_create</a>(<a class="code" href="cgzip_8h.html#a3a1">GZIP_UNCOMPRESS</a>, &gzip));
00150 dbg_err_if(<a class="code" href="group__io__t.html#ga23">io_codec_add_tail</a>(io, (<a class="code" href="structcodec__s.html">codec_t</a>*)gzip));
00151 gzip = NULL;
00152 }
00153 <span class="preprocessor">#endif</span>
00154 <span class="preprocessor"></span>
00155 *pio = io;
00156
00157 <span class="keywordflow">return</span> 0;
00158 err:
00159 <span class="keywordflow">if</span>(gzip)
00160 <a class="code" href="group__codec__t.html#ga3">codec_free</a>(gzip);
00161 <span class="keywordflow">return</span> ~0;
00162 }
00163
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