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<div id="projectname">createrepo_c library
 <span id="projectnumber">0.7.4</span>
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<div id="projectbrief">C library for metadata manipulation</div>
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<div class="title">Load metadata API.</div> </div>
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Typedefs</h2></td></tr>
<tr class="memitem:gaba9fd6e05e5dee99039742dba7d3bc31"><td class="memItemLeft" align="right" valign="top">typedef struct _cr_Metadata </td><td class="memItemRight" valign="bottom"><a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a></td></tr>
<tr class="separator:gaba9fd6e05e5dee99039742dba7d3bc31"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a>
Enumerations</h2></td></tr>
<tr class="memitem:gab7d9b2f1a37f4f7bd6e21d7b6f6f77e8"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__load__metadata.html#gab7d9b2f1a37f4f7bd6e21d7b6f6f77e8">cr_HashTableKey</a> { <br/>
  <a class="el" href="group__load__metadata.html#ggab7d9b2f1a37f4f7bd6e21d7b6f6f77e8a6683496c3920ada130fe8f5c72c99260">CR_HT_KEY_DEFAULT</a>,
<a class="el" href="group__load__metadata.html#ggab7d9b2f1a37f4f7bd6e21d7b6f6f77e8a80ca4df7acaacd5a99d3ee1c9cde990c">CR_HT_KEY_HASH</a> = CR_HT_KEY_DEFAULT,
<a class="el" href="group__load__metadata.html#ggab7d9b2f1a37f4f7bd6e21d7b6f6f77e8ab67521a0eb5d677a5ee712b6cbe02685">CR_HT_KEY_NAME</a>,
<a class="el" href="group__load__metadata.html#ggab7d9b2f1a37f4f7bd6e21d7b6f6f77e8aecb040983096c29684ee5bd87467f958">CR_HT_KEY_FILENAME</a>,
<br/>
  <a class="el" href="group__load__metadata.html#ggab7d9b2f1a37f4f7bd6e21d7b6f6f77e8ad3941249eadd883d4dc6bb5f8c1049e8">CR_HT_KEY_SENTINEL</a>
<br/>
}</td></tr>
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<tr class="memitem:gae280f8d97aaad57604cb638a118157b4"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__load__metadata.html#gae280f8d97aaad57604cb638a118157b4">cr_HashTableKeyDupAction</a> { <a class="el" href="group__load__metadata.html#ggae280f8d97aaad57604cb638a118157b4a9180366ec65e11ddb9fa8f5f9a6a2799">CR_HT_DUPACT_KEEPFIRST</a> = 0,
<a class="el" href="group__load__metadata.html#ggae280f8d97aaad57604cb638a118157b4a081ca6536e36e21afbcfe198755b3cc6">CR_HT_DUPACT_REMOVEALL</a>,
<a class="el" href="group__load__metadata.html#ggae280f8d97aaad57604cb638a118157b4ad2d4ca888995d6b5c4b3923f3b3ddc8e">CR_HT_DUPACT_SENTINEL</a>
}</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ga81ee1f5857dc66caf33c15c89a7d9c14"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__load__metadata.html#gab7d9b2f1a37f4f7bd6e21d7b6f6f77e8">cr_HashTableKey</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__load__metadata.html#ga81ee1f5857dc66caf33c15c89a7d9c14">cr_metadata_key</a> (<a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> *md)</td></tr>
<tr class="separator:ga81ee1f5857dc66caf33c15c89a7d9c14"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga5d6d0bc1a7ae66292d798e70a5f5df53"><td class="memItemLeft" align="right" valign="top">GHashTable * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__load__metadata.html#ga5d6d0bc1a7ae66292d798e70a5f5df53">cr_metadata_hashtable</a> (<a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> *md)</td></tr>
<tr class="separator:ga5d6d0bc1a7ae66292d798e70a5f5df53"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga7a8a8856b036ba60b4c9c055a0e5d987"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__load__metadata.html#ga7a8a8856b036ba60b4c9c055a0e5d987">cr_metadata_new</a> (<a class="el" href="group__load__metadata.html#gab7d9b2f1a37f4f7bd6e21d7b6f6f77e8">cr_HashTableKey</a> key, int use_single_chunk, GSList *pkglist)</td></tr>
<tr class="separator:ga7a8a8856b036ba60b4c9c055a0e5d987"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga41ea71fcd4931d91f664c06a89325fc1"><td class="memItemLeft" align="right" valign="top">gboolean </td><td class="memItemRight" valign="bottom"><a class="el" href="group__load__metadata.html#ga41ea71fcd4931d91f664c06a89325fc1">cr_metadata_set_dupaction</a> (<a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> *md, <a class="el" href="group__load__metadata.html#gae280f8d97aaad57604cb638a118157b4">cr_HashTableKeyDupAction</a> dupaction)</td></tr>
<tr class="separator:ga41ea71fcd4931d91f664c06a89325fc1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gad54dff3ce6f121250a0cef2ef0969a76"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__load__metadata.html#gad54dff3ce6f121250a0cef2ef0969a76">cr_metadata_free</a> (<a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> *md)</td></tr>
<tr class="separator:gad54dff3ce6f121250a0cef2ef0969a76"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga39b98f5587efcbb4e28af754c9f86524"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__load__metadata.html#ga39b98f5587efcbb4e28af754c9f86524">cr_metadata_load_xml</a> (<a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> *md, struct <a class="el" href="structcr___metadata_location.html">cr_MetadataLocation</a> *ml, GError **err)</td></tr>
<tr class="separator:ga39b98f5587efcbb4e28af754c9f86524"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gad81c07f52d3989430a2f9522b75285aa"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__load__metadata.html#gad81c07f52d3989430a2f9522b75285aa">cr_metadata_locate_and_load_xml</a> (<a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> *md, const char *repopath, GError **err)</td></tr>
<tr class="separator:gad81c07f52d3989430a2f9522b75285aa"><td class="memSeparator" colspan="2"> </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Module for loading yum xml metadata.</p>
<p>Example:</p>
<div class="fragment"><div class="line"><span class="keywordtype">int</span> ret;</div>
<div class="line"><a class="code" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> *oldmetadata;</div>
<div class="line">GHashTable hashtable;</div>
<div class="line"></div>
<div class="line"><span class="comment">// Create new metadata object</span></div>
<div class="line">oldmetadata = <a class="code" href="group__load__metadata.html#ga7a8a8856b036ba60b4c9c055a0e5d987">cr_metadata_new</a>(<a class="code" href="group__load__metadata.html#ggab7d9b2f1a37f4f7bd6e21d7b6f6f77e8aecb040983096c29684ee5bd87467f958">CR_HT_KEY_FILENAME</a>, 1, NULL);</div>
<div class="line"><span class="comment">// Load metadata (path to directory which contains repodata/ subdir)</span></div>
<div class="line">ret = <a class="code" href="group__load__metadata.html#gad81c07f52d3989430a2f9522b75285aa">cr_metadata_locate_and_load_xml</a>(oldmetadata, <span class="stringliteral">"/foo/bar/repo/"</span>)</div>
<div class="line"><span class="comment">// Check return code</span></div>
<div class="line">if (ret != CR_LOAD_METADATA_OK) exit(1);</div>
<div class="line"><span class="comment">// Get hash table with all loaded packages (key is package relative path)</span></div>
<div class="line">hashtable = <a class="code" href="group__load__metadata.html#ga5d6d0bc1a7ae66292d798e70a5f5df53">cr_metadata_hashtable</a>(oldmetadata);</div>
<div class="line"><span class="comment">// What to do with hashtable?</span></div>
<div class="line"><span class="comment">// See: http://developer.gnome.org/glib/2.30/glib-Hash-Tables.html</span></div>
</div><!-- fragment --> <h2 class="groupheader">Typedef Documentation</h2>
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<td class="memname">typedef struct _cr_Metadata <a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a></td>
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<p>Metadata object </p>
<p>Definition at line <a class="el" href="load__metadata_8h_source.html#l00085">85</a> of file <a class="el" href="load__metadata_8h_source.html">load_metadata.h</a>.</p>
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<h2 class="groupheader">Enumeration Type Documentation</h2>
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<td class="memname">enum <a class="el" href="group__load__metadata.html#gab7d9b2f1a37f4f7bd6e21d7b6f6f77e8">cr_HashTableKey</a></td>
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<p>Package attribute used as key in the hashtable. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="ggab7d9b2f1a37f4f7bd6e21d7b6f6f77e8a6683496c3920ada130fe8f5c72c99260"></a>CR_HT_KEY_DEFAULT</em> </td><td class="fielddoc">
<p>default = pkg hash </p>
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="ggab7d9b2f1a37f4f7bd6e21d7b6f6f77e8a80ca4df7acaacd5a99d3ee1c9cde990c"></a>CR_HT_KEY_HASH</em> </td><td class="fielddoc">
<p>pkg hash (<a class="el" href="structcr___package.html">cr_Package</a> ->pkgId) </p>
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="ggab7d9b2f1a37f4f7bd6e21d7b6f6f77e8ab67521a0eb5d677a5ee712b6cbe02685"></a>CR_HT_KEY_NAME</em> </td><td class="fielddoc">
<p>pkg name (<a class="el" href="structcr___package.html">cr_Package</a> ->name) </p>
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="ggab7d9b2f1a37f4f7bd6e21d7b6f6f77e8aecb040983096c29684ee5bd87467f958"></a>CR_HT_KEY_FILENAME</em> </td><td class="fielddoc">
<p>pkg filename (<a class="el" href="structcr___package.html">cr_Package</a> ->location_href) </p>
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="ggab7d9b2f1a37f4f7bd6e21d7b6f6f77e8ad3941249eadd883d4dc6bb5f8c1049e8"></a>CR_HT_KEY_SENTINEL</em> </td><td class="fielddoc">
<p>last element, terminator, .. </p>
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<p>Definition at line <a class="el" href="load__metadata_8h_source.html#l00059">59</a> of file <a class="el" href="load__metadata_8h_source.html">load_metadata.h</a>.</p>
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<td class="memname">enum <a class="el" href="group__load__metadata.html#gae280f8d97aaad57604cb638a118157b4">cr_HashTableKeyDupAction</a></td>
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<p>Internally, and by default, the loaded metadata are indexed by pkgId (pkg's hash). But when you select different attribute for indexing (see cr_HashTableKey). The situation that multiple packages has the same (key) attribute. This enum lists provided methos for resolution of such conflicts. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="ggae280f8d97aaad57604cb638a118157b4a9180366ec65e11ddb9fa8f5f9a6a2799"></a>CR_HT_DUPACT_KEEPFIRST</em> </td><td class="fielddoc">
<p>First encontered item wins, other will be removed - Default </p>
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="ggae280f8d97aaad57604cb638a118157b4a081ca6536e36e21afbcfe198755b3cc6"></a>CR_HT_DUPACT_REMOVEALL</em> </td><td class="fielddoc">
<p>Remove all conflicting items. </p>
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="ggae280f8d97aaad57604cb638a118157b4ad2d4ca888995d6b5c4b3923f3b3ddc8e"></a>CR_HT_DUPACT_SENTINEL</em> </td><td class="fielddoc">
<p>Last element, terminator, ... </p>
</td></tr>
</table>
<p>Definition at line <a class="el" href="load__metadata_8h_source.html#l00074">74</a> of file <a class="el" href="load__metadata_8h_source.html">load_metadata.h</a>.</p>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void cr_metadata_free </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> * </td>
<td class="paramname"><em>md</em></td><td>)</td>
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<p>Destroy metadata. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">md</td><td>cr_Metadata object </td></tr>
</table>
</dd>
</dl>
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<td class="memname">GHashTable* cr_metadata_hashtable </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> * </td>
<td class="paramname"><em>md</em></td><td>)</td>
<td></td>
</tr>
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<p>Return hashtable from a cr_Metadata </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">md</td><td>cr_Metadata object. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Pointer to internal GHashTable. </dd></dl>
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<td class="memname"><a class="el" href="group__load__metadata.html#gab7d9b2f1a37f4f7bd6e21d7b6f6f77e8">cr_HashTableKey</a> cr_metadata_key </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> * </td>
<td class="paramname"><em>md</em></td><td>)</td>
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<p>Return cr_HashTableKey from a cr_Metadata </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">md</td><td>cr_Metadata object. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Key type </dd></dl>
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<td class="memname">int cr_metadata_load_xml </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> * </td>
<td class="paramname"><em>md</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structcr___metadata_location.html">cr_MetadataLocation</a> * </td>
<td class="paramname"><em>ml</em>, </td>
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<td class="paramtype">GError ** </td>
<td class="paramname"><em>err</em> </td>
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<p>Load metadata from the specified location. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">md</td><td>metadata object </td></tr>
<tr><td class="paramname">ml</td><td>metadata location </td></tr>
<tr><td class="paramname">err</td><td>GError ** </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>cr_Error code </dd></dl>
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<td class="memname">int cr_metadata_locate_and_load_xml </td>
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<td class="paramtype"><a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> * </td>
<td class="paramname"><em>md</em>, </td>
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<td class="paramtype">const char * </td>
<td class="paramname"><em>repopath</em>, </td>
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<td class="paramtype">GError ** </td>
<td class="paramname"><em>err</em> </td>
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<p>Locate and load metadata from the specified path. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">md</td><td>metadata object </td></tr>
<tr><td class="paramname">repopath</td><td>path to repo (to directory with repodata/ subdir) </td></tr>
<tr><td class="paramname">err</td><td>GError ** </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>cr_Error code </dd></dl>
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<td class="memname"><a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a>* cr_metadata_new </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__load__metadata.html#gab7d9b2f1a37f4f7bd6e21d7b6f6f77e8">cr_HashTableKey</a> </td>
<td class="paramname"><em>key</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>use_single_chunk</em>, </td>
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<td class="paramtype">GSList * </td>
<td class="paramname"><em>pkglist</em> </td>
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<p>Create new (empty) metadata hashtable. It is NOT thread safe to load data into single cr_Metadata from multiple threads. But non modifying access to the loaded data in cr_Metadata is thread safe. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">key</td><td>key specifies which value will be (is) used as key in hash table </td></tr>
<tr><td class="paramname">use_single_chunk</td><td>use only one string chunk (all loaded packages share one string chunk in the cr_Metadata object) Packages will not be standalone objects. This option leads to less memory consumption. </td></tr>
<tr><td class="paramname">pkglist</td><td>load only packages which base filename is in this list. If param is NULL all packages are loaded. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>empty cr_Metadata object </dd></dl>
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<td class="memname">gboolean cr_metadata_set_dupaction </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__load__metadata.html#gaba9fd6e05e5dee99039742dba7d3bc31">cr_Metadata</a> * </td>
<td class="paramname"><em>md</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__load__metadata.html#gae280f8d97aaad57604cb638a118157b4">cr_HashTableKeyDupAction</a> </td>
<td class="paramname"><em>dupaction</em> </td>
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<p>Set action how to deal with duplicated items. </p>
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