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| <a href="#gio-gpollableutils.description" class="shortcut">Description</a></span> |
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| <a name="gio-gpollableutils"></a><div class="titlepage"></div> |
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| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gio-gpollableutils.top_of_page"></a>gpollableutils</span></h2> |
| <p>gpollableutils — Utilities for pollable streams</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="gio-gpollableutils.functions"></a><h2>Functions</h2> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="functions_return"> |
| <col class="functions_name"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="function_type"> |
| <a href="../glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <span class="c_punctuation">(</span><a class="link" href="gio-gpollableutils.html#GPollableSourceFunc" title="GPollableSourceFunc ()">*GPollableSourceFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="../glib-The-Main-Event-Loop.html#GSource"><span class="returnvalue">GSource</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gio-gpollableutils.html#g-pollable-source-new" title="g_pollable_source_new ()">g_pollable_source_new</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="../glib-The-Main-Event-Loop.html#GSource"><span class="returnvalue">GSource</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gio-gpollableutils.html#g-pollable-source-new-full" title="g_pollable_source_new_full ()">g_pollable_source_new_full</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="../glib-Basic-Types.html#gssize"><span class="returnvalue">gssize</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gio-gpollableutils.html#g-pollable-stream-read" title="g_pollable_stream_read ()">g_pollable_stream_read</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="../glib-Basic-Types.html#gssize"><span class="returnvalue">gssize</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gio-gpollableutils.html#g-pollable-stream-write" title="g_pollable_stream_write ()">g_pollable_stream_write</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="../glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gio-gpollableutils.html#g-pollable-stream-write-all" title="g_pollable_stream_write_all ()">g_pollable_stream_write_all</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gio-gpollableutils.includes"></a><h2>Includes</h2> |
| <pre class="synopsis">#include <gio/gio.h> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gio-gpollableutils.description"></a><h2>Description</h2> |
| <p>Utility functions for <a class="link" href="GPollableInputStream.html" title="GPollableInputStream"><span class="type">GPollableInputStream</span></a> and |
| <a class="link" href="GPollableOutputStream.html" title="GPollableOutputStream"><span class="type">GPollableOutputStream</span></a> implementations.</p> |
| </div> |
| <div class="refsect1"> |
| <a name="gio-gpollableutils.functions_details"></a><h2>Functions</h2> |
| <div class="refsect2"> |
| <a name="GPollableSourceFunc"></a><h3>GPollableSourceFunc ()</h3> |
| <pre class="programlisting"><a href="../glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| <span class="c_punctuation">(</span>*GPollableSourceFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a href="../gobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> *pollable_stream</code></em>, |
| <em class="parameter"><code><a href="../glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre> |
| <p>This is the function type of the callback used for the <a href="../glib-The-Main-Event-Loop.html#GSource"><span class="type">GSource</span></a> |
| returned by <a class="link" href="GPollableInputStream.html#g-pollable-input-stream-create-source" title="g_pollable_input_stream_create_source ()"><code class="function">g_pollable_input_stream_create_source()</code></a> and |
| <a class="link" href="GPollableOutputStream.html#g-pollable-output-stream-create-source" title="g_pollable_output_stream_create_source ()"><code class="function">g_pollable_output_stream_create_source()</code></a>.</p> |
| <div class="refsect3"> |
| <a name="GPollableSourceFunc.parameters"></a><h4>Parameters</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>pollable_stream</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GPollableInputStream.html" title="GPollableInputStream"><span class="type">GPollableInputStream</span></a> or <a class="link" href="GPollableOutputStream.html" title="GPollableOutputStream"><span class="type">GPollableOutputStream</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>user_data</p></td> |
| <td class="parameter_description"><p>data passed in by the user.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="GPollableSourceFunc.returns"></a><h4>Returns</h4> |
| <p> it should return <a href="../glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if the source should be removed.</p> |
| </div> |
| <p class="since">Since: <a class="link" href="api-index-2-28.html#api-index-2.28">2.28</a></p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="g-pollable-source-new"></a><h3>g_pollable_source_new ()</h3> |
| <pre class="programlisting"><a href="../glib-The-Main-Event-Loop.html#GSource"><span class="returnvalue">GSource</span></a> * |
| g_pollable_source_new (<em class="parameter"><code><a href="../gobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> *pollable_stream</code></em>);</pre> |
| <p>Utility method for <a class="link" href="GPollableInputStream.html" title="GPollableInputStream"><span class="type">GPollableInputStream</span></a> and <a class="link" href="GPollableOutputStream.html" title="GPollableOutputStream"><span class="type">GPollableOutputStream</span></a> |
| implementations. Creates a new <a href="../glib-The-Main-Event-Loop.html#GSource"><span class="type">GSource</span></a> that expects a callback of |
| type <a class="link" href="gio-gpollableutils.html#GPollableSourceFunc" title="GPollableSourceFunc ()"><span class="type">GPollableSourceFunc</span></a>. The new source does not actually do |
| anything on its own; use <a href="../glib-The-Main-Event-Loop.html#g-source-add-child-source"><code class="function">g_source_add_child_source()</code></a> to add other |
| sources to it to cause it to trigger.</p> |
| <div class="refsect3"> |
| <a name="g-pollable-source-new.parameters"></a><h4>Parameters</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="parameter_name"><p>pollable_stream</p></td> |
| <td class="parameter_description"><p>the stream associated with the new source</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="g-pollable-source-new.returns"></a><h4>Returns</h4> |
| <p> the new <a href="../glib-The-Main-Event-Loop.html#GSource"><span class="type">GSource</span></a>. </p> |
| <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p> |
| </div> |
| <p class="since">Since: <a class="link" href="api-index-2-28.html#api-index-2.28">2.28</a></p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="g-pollable-source-new-full"></a><h3>g_pollable_source_new_full ()</h3> |
| <pre class="programlisting"><a href="../glib-The-Main-Event-Loop.html#GSource"><span class="returnvalue">GSource</span></a> * |
| g_pollable_source_new_full (<em class="parameter"><code><a href="../glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> pollable_stream</code></em>, |
| <em class="parameter"><code><a href="../glib-The-Main-Event-Loop.html#GSource"><span class="type">GSource</span></a> *child_source</code></em>, |
| <em class="parameter"><code><a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a> *cancellable</code></em>);</pre> |
| <p>Utility method for <a class="link" href="GPollableInputStream.html" title="GPollableInputStream"><span class="type">GPollableInputStream</span></a> and <a class="link" href="GPollableOutputStream.html" title="GPollableOutputStream"><span class="type">GPollableOutputStream</span></a> |
| implementations. Creates a new <a href="../glib-The-Main-Event-Loop.html#GSource"><span class="type">GSource</span></a>, as with |
| <a class="link" href="gio-gpollableutils.html#g-pollable-source-new" title="g_pollable_source_new ()"><code class="function">g_pollable_source_new()</code></a>, but also attaching <em class="parameter"><code>child_source</code></em> |
| (with a |
| dummy callback), and <em class="parameter"><code>cancellable</code></em> |
| , if they are non-<a href="../glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p> |
| <div class="refsect3"> |
| <a name="g-pollable-source-new-full.parameters"></a><h4>Parameters</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>pollable_stream</p></td> |
| <td class="parameter_description"><p> the stream associated with the |
| new source. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="Override the parsed C type with given type."><span class="acronym">type</span></acronym> GObject]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>child_source</p></td> |
| <td class="parameter_description"><p> optional child source to attach. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>cancellable</p></td> |
| <td class="parameter_description"><p> optional <a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a> to attach. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="g-pollable-source-new-full.returns"></a><h4>Returns</h4> |
| <p> the new <a href="../glib-The-Main-Event-Loop.html#GSource"><span class="type">GSource</span></a>. </p> |
| <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p> |
| </div> |
| <p class="since">Since: <a class="link" href="api-index-2-34.html#api-index-2.34">2.34</a></p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="g-pollable-stream-read"></a><h3>g_pollable_stream_read ()</h3> |
| <pre class="programlisting"><a href="../glib-Basic-Types.html#gssize"><span class="returnvalue">gssize</span></a> |
| g_pollable_stream_read (<em class="parameter"><code><a class="link" href="GInputStream.html" title="GInputStream"><span class="type">GInputStream</span></a> *stream</code></em>, |
| <em class="parameter"><code><span class="type">void</span> *buffer</code></em>, |
| <em class="parameter"><code><a href="../glib-Basic-Types.html#gsize"><span class="type">gsize</span></a> count</code></em>, |
| <em class="parameter"><code><a href="../glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> blocking</code></em>, |
| <em class="parameter"><code><a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a> *cancellable</code></em>, |
| <em class="parameter"><code><a href="../glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre> |
| <p>Tries to read from <em class="parameter"><code>stream</code></em> |
| , as with <a class="link" href="GInputStream.html#g-input-stream-read" title="g_input_stream_read ()"><code class="function">g_input_stream_read()</code></a> (if |
| <em class="parameter"><code>blocking</code></em> |
| is <a href="../glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>) or <a class="link" href="GPollableInputStream.html#g-pollable-input-stream-read-nonblocking" title="g_pollable_input_stream_read_nonblocking ()"><code class="function">g_pollable_input_stream_read_nonblocking()</code></a> |
| (if <em class="parameter"><code>blocking</code></em> |
| is <a href="../glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>). This can be used to more easily share |
| code between blocking and non-blocking implementations of a method.</p> |
| <p>If <em class="parameter"><code>blocking</code></em> |
| is <a href="../glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>, then <em class="parameter"><code>stream</code></em> |
| must be a |
| <a class="link" href="GPollableInputStream.html" title="GPollableInputStream"><span class="type">GPollableInputStream</span></a> for which <a class="link" href="GPollableInputStream.html#g-pollable-input-stream-can-poll" title="g_pollable_input_stream_can_poll ()"><code class="function">g_pollable_input_stream_can_poll()</code></a> |
| returns <a href="../glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, or else the behavior is undefined. If <em class="parameter"><code>blocking</code></em> |
| is |
| <a href="../glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, then <em class="parameter"><code>stream</code></em> |
| does not need to be a <a class="link" href="GPollableInputStream.html" title="GPollableInputStream"><span class="type">GPollableInputStream</span></a>.</p> |
| <div class="refsect3"> |
| <a name="g-pollable-stream-read.parameters"></a><h4>Parameters</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>stream</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GInputStream.html" title="GInputStream"><span class="type">GInputStream</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>buffer</p></td> |
| <td class="parameter_description"><p> a buffer to |
| read data into. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=count][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> guint8]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>count</p></td> |
| <td class="parameter_description"><p>the number of bytes to read</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>blocking</p></td> |
| <td class="parameter_description"><p>whether to do blocking I/O</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>cancellable</p></td> |
| <td class="parameter_description"><p> optional <a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a> object, <a href="../glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to ignore. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>error</p></td> |
| <td class="parameter_description"><p>location to store the error occurring, or <a href="../glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to ignore</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="g-pollable-stream-read.returns"></a><h4>Returns</h4> |
| <p> the number of bytes read, or -1 on error.</p> |
| </div> |
| <p class="since">Since: <a class="link" href="api-index-2-34.html#api-index-2.34">2.34</a></p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="g-pollable-stream-write"></a><h3>g_pollable_stream_write ()</h3> |
| <pre class="programlisting"><a href="../glib-Basic-Types.html#gssize"><span class="returnvalue">gssize</span></a> |
| g_pollable_stream_write (<em class="parameter"><code><a class="link" href="GOutputStream.html" title="GOutputStream"><span class="type">GOutputStream</span></a> *stream</code></em>, |
| <em class="parameter"><code>const <span class="type">void</span> *buffer</code></em>, |
| <em class="parameter"><code><a href="../glib-Basic-Types.html#gsize"><span class="type">gsize</span></a> count</code></em>, |
| <em class="parameter"><code><a href="../glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> blocking</code></em>, |
| <em class="parameter"><code><a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a> *cancellable</code></em>, |
| <em class="parameter"><code><a href="../glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre> |
| <p>Tries to write to <em class="parameter"><code>stream</code></em> |
| , as with <a class="link" href="GOutputStream.html#g-output-stream-write" title="g_output_stream_write ()"><code class="function">g_output_stream_write()</code></a> (if |
| <em class="parameter"><code>blocking</code></em> |
| is <a href="../glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>) or <a class="link" href="GPollableOutputStream.html#g-pollable-output-stream-write-nonblocking" title="g_pollable_output_stream_write_nonblocking ()"><code class="function">g_pollable_output_stream_write_nonblocking()</code></a> |
| (if <em class="parameter"><code>blocking</code></em> |
| is <a href="../glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>). This can be used to more easily share |
| code between blocking and non-blocking implementations of a method.</p> |
| <p>If <em class="parameter"><code>blocking</code></em> |
| is <a href="../glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>, then <em class="parameter"><code>stream</code></em> |
| must be a |
| <a class="link" href="GPollableOutputStream.html" title="GPollableOutputStream"><span class="type">GPollableOutputStream</span></a> for which |
| <a class="link" href="GPollableOutputStream.html#g-pollable-output-stream-can-poll" title="g_pollable_output_stream_can_poll ()"><code class="function">g_pollable_output_stream_can_poll()</code></a> returns <a href="../glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> or else the |
| behavior is undefined. If <em class="parameter"><code>blocking</code></em> |
| is <a href="../glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, then <em class="parameter"><code>stream</code></em> |
| does not |
| need to be a <a class="link" href="GPollableOutputStream.html" title="GPollableOutputStream"><span class="type">GPollableOutputStream</span></a>.</p> |
| <div class="refsect3"> |
| <a name="g-pollable-stream-write.parameters"></a><h4>Parameters</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>stream</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GOutputStream.html" title="GOutputStream"><span class="type">GOutputStream</span></a>.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>buffer</p></td> |
| <td class="parameter_description"><p> the buffer |
| containing the data to write. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=count][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> guint8]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>count</p></td> |
| <td class="parameter_description"><p>the number of bytes to write</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>blocking</p></td> |
| <td class="parameter_description"><p>whether to do blocking I/O</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>cancellable</p></td> |
| <td class="parameter_description"><p> optional <a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a> object, <a href="../glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to ignore. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>error</p></td> |
| <td class="parameter_description"><p>location to store the error occurring, or <a href="../glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to ignore</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="g-pollable-stream-write.returns"></a><h4>Returns</h4> |
| <p> the number of bytes written, or -1 on error.</p> |
| </div> |
| <p class="since">Since: <a class="link" href="api-index-2-34.html#api-index-2.34">2.34</a></p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="g-pollable-stream-write-all"></a><h3>g_pollable_stream_write_all ()</h3> |
| <pre class="programlisting"><a href="../glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| g_pollable_stream_write_all (<em class="parameter"><code><a class="link" href="GOutputStream.html" title="GOutputStream"><span class="type">GOutputStream</span></a> *stream</code></em>, |
| <em class="parameter"><code>const <span class="type">void</span> *buffer</code></em>, |
| <em class="parameter"><code><a href="../glib-Basic-Types.html#gsize"><span class="type">gsize</span></a> count</code></em>, |
| <em class="parameter"><code><a href="../glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> blocking</code></em>, |
| <em class="parameter"><code><a href="../glib-Basic-Types.html#gsize"><span class="type">gsize</span></a> *bytes_written</code></em>, |
| <em class="parameter"><code><a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a> *cancellable</code></em>, |
| <em class="parameter"><code><a href="../glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre> |
| <p>Tries to write <em class="parameter"><code>count</code></em> |
| bytes to <em class="parameter"><code>stream</code></em> |
| , as with |
| <a class="link" href="GOutputStream.html#g-output-stream-write-all" title="g_output_stream_write_all ()"><code class="function">g_output_stream_write_all()</code></a>, but using <a class="link" href="gio-gpollableutils.html#g-pollable-stream-write" title="g_pollable_stream_write ()"><code class="function">g_pollable_stream_write()</code></a> |
| rather than <a class="link" href="GOutputStream.html#g-output-stream-write" title="g_output_stream_write ()"><code class="function">g_output_stream_write()</code></a>.</p> |
| <p>On a successful write of <em class="parameter"><code>count</code></em> |
| bytes, <a href="../glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> is returned, and |
| <em class="parameter"><code>bytes_written</code></em> |
| is set to <em class="parameter"><code>count</code></em> |
| .</p> |
| <p>If there is an error during the operation (including |
| <a class="link" href="gio-GIOError.html#G-IO-ERROR-WOULD-BLOCK:CAPS"><code class="literal">G_IO_ERROR_WOULD_BLOCK</code></a> in the non-blocking case), <a href="../glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> is |
| returned and <em class="parameter"><code>error</code></em> |
| is set to indicate the error status, |
| <em class="parameter"><code>bytes_written</code></em> |
| is updated to contain the number of bytes written |
| into the stream before the error occurred.</p> |
| <p>As with <a class="link" href="gio-gpollableutils.html#g-pollable-stream-write" title="g_pollable_stream_write ()"><code class="function">g_pollable_stream_write()</code></a>, if <em class="parameter"><code>blocking</code></em> |
| is <a href="../glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>, then |
| <em class="parameter"><code>stream</code></em> |
| must be a <a class="link" href="GPollableOutputStream.html" title="GPollableOutputStream"><span class="type">GPollableOutputStream</span></a> for which |
| <a class="link" href="GPollableOutputStream.html#g-pollable-output-stream-can-poll" title="g_pollable_output_stream_can_poll ()"><code class="function">g_pollable_output_stream_can_poll()</code></a> returns <a href="../glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> or else the |
| behavior is undefined. If <em class="parameter"><code>blocking</code></em> |
| is <a href="../glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, then <em class="parameter"><code>stream</code></em> |
| does not |
| need to be a <a class="link" href="GPollableOutputStream.html" title="GPollableOutputStream"><span class="type">GPollableOutputStream</span></a>.</p> |
| <div class="refsect3"> |
| <a name="g-pollable-stream-write-all.parameters"></a><h4>Parameters</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>stream</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GOutputStream.html" title="GOutputStream"><span class="type">GOutputStream</span></a>.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>buffer</p></td> |
| <td class="parameter_description"><p> the buffer |
| containing the data to write. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=count][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> guint8]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>count</p></td> |
| <td class="parameter_description"><p>the number of bytes to write</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>blocking</p></td> |
| <td class="parameter_description"><p>whether to do blocking I/O</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>bytes_written</p></td> |
| <td class="parameter_description"><p> location to store the number of bytes that was |
| written to the stream. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>cancellable</p></td> |
| <td class="parameter_description"><p> optional <a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a> object, <a href="../glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to ignore. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>error</p></td> |
| <td class="parameter_description"><p>location to store the error occurring, or <a href="../glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to ignore</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="g-pollable-stream-write-all.returns"></a><h4>Returns</h4> |
| <p> <a href="../glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> on success, <a href="../glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if there was an error</p> |
| </div> |
| <p class="since">Since: <a class="link" href="api-index-2-34.html#api-index-2.34">2.34</a></p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gio-gpollableutils.other_details"></a><h2>Types and Values</h2> |
| </div> |
| </div> |
| <div class="footer"> |
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