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| <a href="#GUnixFDList.synopsis" class="shortcut">Top</a> |
| | |
| <a href="#GUnixFDList.description" class="shortcut">Description</a> |
| | |
| <a href="#GUnixFDList.object-hierarchy" class="shortcut">Object Hierarchy</a> |
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| <div class="refentry" title="GUnixFDList"> |
| <a name="GUnixFDList"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="GUnixFDList.top_of_page"></a>GUnixFDList</span></h2> |
| <p>GUnixFDList — An object containing a set of file descriptors</p> |
| </td> |
| <td valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsynopsisdiv" title="Synopsis"> |
| <a name="GUnixFDList.synopsis"></a><h2>Synopsis</h2> |
| <pre class="synopsis"> <a class="link" href="GUnixFDList.html#GUnixFDList-struct" title="GUnixFDList">GUnixFDList</a>; |
| <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="returnvalue">GUnixFDList</span></a> * <a class="link" href="GUnixFDList.html#g-unix-fd-list-new-from-array" title="g_unix_fd_list_new_from_array ()">g_unix_fd_list_new_from_array</a> (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *fds</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> n_fds</code></em>); |
| <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="returnvalue">GUnixFDList</span></a> * <a class="link" href="GUnixFDList.html#g-unix-fd-list-new" title="g_unix_fd_list_new ()">g_unix_fd_list_new</a> (<em class="parameter"><code><span class="type">void</span></code></em>); |
| <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> <a class="link" href="GUnixFDList.html#g-unix-fd-list-get-length" title="g_unix_fd_list_get_length ()">g_unix_fd_list_get_length</a> (<em class="parameter"><code><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> *list</code></em>); |
| <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> <a class="link" href="GUnixFDList.html#g-unix-fd-list-get" title="g_unix_fd_list_get ()">g_unix_fd_list_get</a> (<em class="parameter"><code><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> *list</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> index_</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>); |
| const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> * <a class="link" href="GUnixFDList.html#g-unix-fd-list-peek-fds" title="g_unix_fd_list_peek_fds ()">g_unix_fd_list_peek_fds</a> (<em class="parameter"><code><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> *list</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *length</code></em>); |
| <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> * <a class="link" href="GUnixFDList.html#g-unix-fd-list-steal-fds" title="g_unix_fd_list_steal_fds ()">g_unix_fd_list_steal_fds</a> (<em class="parameter"><code><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> *list</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *length</code></em>); |
| <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> <a class="link" href="GUnixFDList.html#g-unix-fd-list-append" title="g_unix_fd_list_append ()">g_unix_fd_list_append</a> (<em class="parameter"><code><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> *list</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> fd</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>); |
| </pre> |
| </div> |
| <div class="refsect1" title="Object Hierarchy"> |
| <a name="GUnixFDList.object-hierarchy"></a><h2>Object Hierarchy</h2> |
| <pre class="synopsis"> |
| <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a> |
| +----GUnixFDList |
| </pre> |
| </div> |
| <div class="refsect1" title="Description"> |
| <a name="GUnixFDList.description"></a><h2>Description</h2> |
| <p> |
| A <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> contains a list of file descriptors. It owns the file |
| descriptors that it contains, closing them when finalized. |
| </p> |
| <p> |
| It may be wrapped in a <a class="link" href="GUnixFDMessage.html" title="GUnixFDMessage"><span class="type">GUnixFDMessage</span></a> and sent over a <a class="link" href="GSocket.html" title="GSocket"><span class="type">GSocket</span></a> in |
| the <code class="literal">G_SOCKET_ADDRESS_UNIX</code> family by using <a class="link" href="GSocket.html#g-socket-send-message" title="g_socket_send_message ()"><code class="function">g_socket_send_message()</code></a> |
| and received using <a class="link" href="GSocket.html#g-socket-receive-message" title="g_socket_receive_message ()"><code class="function">g_socket_receive_message()</code></a>. |
| </p> |
| </div> |
| <div class="refsect1" title="Details"> |
| <a name="GUnixFDList.details"></a><h2>Details</h2> |
| <div class="refsect2" title="GUnixFDList"> |
| <a name="GUnixFDList-struct"></a><h3>GUnixFDList</h3> |
| <pre class="programlisting">typedef struct _GUnixFDList GUnixFDList;</pre> |
| <p> |
| </p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_unix_fd_list_new_from_array ()"> |
| <a name="g-unix-fd-list-new-from-array"></a><h3>g_unix_fd_list_new_from_array ()</h3> |
| <pre class="programlisting"><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="returnvalue">GUnixFDList</span></a> * g_unix_fd_list_new_from_array (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *fds</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> n_fds</code></em>);</pre> |
| <p> |
| Creates a new <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> containing the file descriptors given in |
| <em class="parameter"><code>fds</code></em>. The file descriptors become the property of the new list and |
| may no longer be used by the caller. The array itself is owned by |
| the caller. |
| </p> |
| <p> |
| Each file descriptor in the array should be set to close-on-exec. |
| </p> |
| <p> |
| If <em class="parameter"><code>n_fds</code></em> is -1 then <em class="parameter"><code>fds</code></em> must be terminated with -1. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>fds</code></em> :</span></p></td> |
| <td>the initial list of file descriptors |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>n_fds</code></em> :</span></p></td> |
| <td>the length of <span class="type">fds</span>, or -1 |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> a new <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.24</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_unix_fd_list_new ()"> |
| <a name="g-unix-fd-list-new"></a><h3>g_unix_fd_list_new ()</h3> |
| <pre class="programlisting"><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="returnvalue">GUnixFDList</span></a> * g_unix_fd_list_new (<em class="parameter"><code><span class="type">void</span></code></em>);</pre> |
| <p> |
| Creates a new <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> containing no file descriptors. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody><tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> a new <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> |
| |
| </td> |
| </tr></tbody> |
| </table></div> |
| <p class="since">Since 2.24</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_unix_fd_list_get_length ()"> |
| <a name="g-unix-fd-list-get-length"></a><h3>g_unix_fd_list_get_length ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> g_unix_fd_list_get_length (<em class="parameter"><code><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> *list</code></em>);</pre> |
| <p> |
| Gets the length of <em class="parameter"><code>list</code></em> (ie: the number of file descriptors |
| contained within). |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>list</code></em> :</span></p></td> |
| <td>a <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> the length of <em class="parameter"><code>list</code></em> |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.24</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_unix_fd_list_get ()"> |
| <a name="g-unix-fd-list-get"></a><h3>g_unix_fd_list_get ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> g_unix_fd_list_get (<em class="parameter"><code><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> *list</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> index_</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre> |
| <p> |
| Gets a file descriptor out of <em class="parameter"><code>list</code></em>. |
| </p> |
| <p> |
| <em class="parameter"><code>index_</code></em> specifies the index of the file descriptor to get. It is a |
| programmer error for <em class="parameter"><code>index_</code></em> to be out of range; see |
| <a class="link" href="GUnixFDList.html#g-unix-fd-list-get-length" title="g_unix_fd_list_get_length ()"><code class="function">g_unix_fd_list_get_length()</code></a>. |
| </p> |
| <p> |
| The file descriptor is duplicated using <code class="function">dup()</code> and set as |
| close-on-exec before being returned. You must call <code class="function">close()</code> on it |
| when you are done. |
| </p> |
| <p> |
| A possible cause of failure is exceeding the per-process or |
| system-wide file descriptor limit. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>list</code></em> :</span></p></td> |
| <td>a <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>index_</code></em> :</span></p></td> |
| <td>the index into the list |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td> |
| <td>a <a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> pointer |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> the file descriptor, or -1 in case of error |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.24</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_unix_fd_list_peek_fds ()"> |
| <a name="g-unix-fd-list-peek-fds"></a><h3>g_unix_fd_list_peek_fds ()</h3> |
| <pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> * g_unix_fd_list_peek_fds (<em class="parameter"><code><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> *list</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *length</code></em>);</pre> |
| <p> |
| Returns the array of file descriptors that is contained in this |
| object. |
| </p> |
| <p> |
| After this call, the descriptors remain the property of <em class="parameter"><code>list</code></em>. The |
| caller must not close them and must not free the array. The array is |
| valid only until <em class="parameter"><code>list</code></em> is changed in any way. |
| </p> |
| <p> |
| If <em class="parameter"><code>length</code></em> is non-<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> then it is set to the number of file |
| descriptors in the returned array. The returned array is also |
| terminated with -1. |
| </p> |
| <p> |
| This function never returns <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. In case there are no file |
| descriptors contained in <em class="parameter"><code>list</code></em>, an empty array is returned. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>list</code></em> :</span></p></td> |
| <td>a <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>length</code></em> :</span></p></td> |
| <td>pointer to the length of the returned array, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> an array of file descriptors |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.24</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_unix_fd_list_steal_fds ()"> |
| <a name="g-unix-fd-list-steal-fds"></a><h3>g_unix_fd_list_steal_fds ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> * g_unix_fd_list_steal_fds (<em class="parameter"><code><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> *list</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *length</code></em>);</pre> |
| <p> |
| Returns the array of file descriptors that is contained in this |
| object. |
| </p> |
| <p> |
| After this call, the descriptors are no longer contained in |
| <em class="parameter"><code>list</code></em>. Further calls will return an empty list (unless more |
| descriptors have been added). |
| </p> |
| <p> |
| The return result of this function must be freed with <a href="/usr/share/gtk-doc/html/glib/glib-Memory-Allocation.html#g-free"><code class="function">g_free()</code></a>. |
| The caller is also responsible for closing all of the file |
| descriptors. The file descriptors in the array are set to |
| close-on-exec. |
| </p> |
| <p> |
| If <em class="parameter"><code>length</code></em> is non-<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> then it is set to the number of file |
| descriptors in the returned array. The returned array is also |
| terminated with -1. |
| </p> |
| <p> |
| This function never returns <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. In case there are no file |
| descriptors contained in <em class="parameter"><code>list</code></em>, an empty array is returned. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>list</code></em> :</span></p></td> |
| <td>a <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>length</code></em> :</span></p></td> |
| <td>pointer to the length of the returned array, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> an array of file descriptors |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.24</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_unix_fd_list_append ()"> |
| <a name="g-unix-fd-list-append"></a><h3>g_unix_fd_list_append ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> g_unix_fd_list_append (<em class="parameter"><code><a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> *list</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> fd</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre> |
| <p> |
| Adds a file descriptor to <em class="parameter"><code>list</code></em>. |
| </p> |
| <p> |
| The file descriptor is duplicated using <code class="function">dup()</code>. You keep your copy |
| of the descriptor and the copy contained in <em class="parameter"><code>list</code></em> will be closed |
| when <em class="parameter"><code>list</code></em> is finalized. |
| </p> |
| <p> |
| A possible cause of failure is exceeding the per-process or |
| system-wide file descriptor limit. |
| </p> |
| <p> |
| The index of the file descriptor in the list is returned. If you use |
| this index with <a class="link" href="GUnixFDList.html#g-unix-fd-list-get" title="g_unix_fd_list_get ()"><code class="function">g_unix_fd_list_get()</code></a> then you will receive back a |
| duplicated copy of the same file descriptor. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>list</code></em> :</span></p></td> |
| <td>a <a class="link" href="GUnixFDList.html" title="GUnixFDList"><span class="type">GUnixFDList</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>fd</code></em> :</span></p></td> |
| <td>a valid open file descriptor |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td> |
| <td>a <a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> pointer |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> the index of the appended fd in case of success, else -1 |
| (and <em class="parameter"><code>error</code></em> is set) |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.24</p> |
| </div> |
| </div> |
| <div class="refsect1" title="See Also"> |
| <a name="GUnixFDList.see-also"></a><h2>See Also</h2> |
| <a class="link" href="GUnixFDMessage.html" title="GUnixFDMessage"><span class="type">GUnixFDMessage</span></a> |
| </div> |
| </div> |
| <div class="footer"> |
| <hr> |
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