<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>GMemoryInputStream</title> <meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> <link rel="home" href="index.html" title="GIO Reference Manual"> <link rel="up" href="streaming.html" title="Streaming I/O"> <link rel="prev" href="GFilterOutputStream.html" title="GFilterOutputStream"> <link rel="next" href="GMemoryOutputStream.html" title="GMemoryOutputStream"> <meta name="generator" content="GTK-Doc V1.18.1 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"> <tr valign="middle"> <td><a accesskey="p" href="GFilterOutputStream.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td> <td><a 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name="GMemoryInputStream.top_of_page"></a>GMemoryInputStream</span></h2> <p>GMemoryInputStream — Streaming input operations on memory chunks</p> </td> <td valign="top" align="right"></td> </tr></table></div> <div class="refsynopsisdiv"> <a name="GMemoryInputStream.synopsis"></a><h2>Synopsis</h2> <pre class="synopsis"> #include <gio/gio.h> <a class="link" href="GMemoryInputStream.html#GMemoryInputStream-struct" title="GMemoryInputStream">GMemoryInputStream</a>; <a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> * <a class="link" href="GMemoryInputStream.html#g-memory-input-stream-new" title="g_memory_input_stream_new ()">g_memory_input_stream_new</a> (<em class="parameter"><code><span class="type">void</span></code></em>); <a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> * <a class="link" href="GMemoryInputStream.html#g-memory-input-stream-new-from-data" title="g_memory_input_stream_new_from_data ()">g_memory_input_stream_new_from_data</a> (<em class="parameter"><code>const <span class="type">void</span> *data</code></em>, <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gssize"><span class="type">gssize</span></a> len</code></em>, <em class="parameter"><code><a href="../glib/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> destroy</code></em>); <a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> * <a class="link" href="GMemoryInputStream.html#g-memory-input-stream-new-from-bytes" title="g_memory_input_stream_new_from_bytes ()">g_memory_input_stream_new_from_bytes</a> (<em class="parameter"><code><a href="../glib/glib-Byte-Arrays.html#GBytes"><span class="type">GBytes</span></a> *bytes</code></em>); <span class="returnvalue">void</span> <a class="link" href="GMemoryInputStream.html#g-memory-input-stream-add-data" title="g_memory_input_stream_add_data ()">g_memory_input_stream_add_data</a> (<em class="parameter"><code><a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> *stream</code></em>, <em class="parameter"><code>const <span class="type">void</span> *data</code></em>, <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gssize"><span class="type">gssize</span></a> len</code></em>, <em class="parameter"><code><a href="../glib/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> destroy</code></em>); <span class="returnvalue">void</span> <a class="link" href="GMemoryInputStream.html#g-memory-input-stream-add-bytes" title="g_memory_input_stream_add_bytes ()">g_memory_input_stream_add_bytes</a> (<em class="parameter"><code><a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> *stream</code></em>, <em class="parameter"><code><a href="../glib/glib-Byte-Arrays.html#GBytes"><span class="type">GBytes</span></a> *bytes</code></em>); </pre> </div> <div class="refsect1"> <a name="GMemoryInputStream.object-hierarchy"></a><h2>Object Hierarchy</h2> <pre class="synopsis"> <a href="../gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a> +----<a class="link" href="GInputStream.html" title="GInputStream">GInputStream</a> +----GMemoryInputStream </pre> </div> <div class="refsect1"> <a name="GMemoryInputStream.implemented-interfaces"></a><h2>Implemented Interfaces</h2> <p> GMemoryInputStream implements <a class="link" href="GSeekable.html" title="GSeekable">GSeekable</a> and <a class="link" href="GPollableInputStream.html" title="GPollableInputStream">GPollableInputStream</a>.</p> </div> <div class="refsect1"> <a name="GMemoryInputStream.description"></a><h2>Description</h2> <p> <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> is a class for using arbitrary memory chunks as input for GIO streaming input operations. </p> <p> As of GLib 2.34, <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> implements <a class="link" href="GPollableInputStream.html" title="GPollableInputStream"><span class="type">GPollableInputStream</span></a>. </p> </div> <div class="refsect1"> <a name="GMemoryInputStream.details"></a><h2>Details</h2> <div class="refsect2"> <a name="GMemoryInputStream-struct"></a><h3>GMemoryInputStream</h3> <pre class="programlisting">typedef struct _GMemoryInputStream GMemoryInputStream;</pre> <p> Implements <a class="link" href="GInputStream.html" title="GInputStream"><span class="type">GInputStream</span></a> for arbitrary memory chunks. </p> </div> <hr> <div class="refsect2"> <a name="g-memory-input-stream-new"></a><h3>g_memory_input_stream_new ()</h3> <pre class="programlisting"><a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> * g_memory_input_stream_new (<em class="parameter"><code><span class="type">void</span></code></em>);</pre> <p> Creates a new empty <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a>. </p> <div class="variablelist"><table border="0" class="variablelist"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody><tr> <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> <td>a new <a class="link" href="GInputStream.html" title="GInputStream"><span class="type">GInputStream</span></a> </td> </tr></tbody> </table></div> </div> <hr> <div class="refsect2"> <a name="g-memory-input-stream-new-from-data"></a><h3>g_memory_input_stream_new_from_data ()</h3> <pre class="programlisting"><a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> * g_memory_input_stream_new_from_data (<em class="parameter"><code>const <span class="type">void</span> *data</code></em>, <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gssize"><span class="type">gssize</span></a> len</code></em>, <em class="parameter"><code><a href="../glib/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> destroy</code></em>);</pre> <p> Creates a new <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> with data in memory of a given size. </p> <div class="variablelist"><table border="0" class="variablelist"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody> <tr> <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td> <td>input data. <span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=len][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> guint8][<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span> </td> </tr> <tr> <td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td> <td>length of the data, may be -1 if <em class="parameter"><code>data</code></em> is a nul-terminated string</td> </tr> <tr> <td><p><span class="term"><em class="parameter"><code>destroy</code></em> :</span></p></td> <td>function that is called to free <em class="parameter"><code>data</code></em>, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. <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><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> <td>new <a class="link" href="GInputStream.html" title="GInputStream"><span class="type">GInputStream</span></a> read from <em class="parameter"><code>data</code></em> of <em class="parameter"><code>len</code></em> bytes.</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2"> <a name="g-memory-input-stream-new-from-bytes"></a><h3>g_memory_input_stream_new_from_bytes ()</h3> <pre class="programlisting"><a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> * g_memory_input_stream_new_from_bytes (<em class="parameter"><code><a href="../glib/glib-Byte-Arrays.html#GBytes"><span class="type">GBytes</span></a> *bytes</code></em>);</pre> <p> Creates a new <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> with data from the given <em class="parameter"><code>bytes</code></em>. </p> <div class="variablelist"><table border="0" class="variablelist"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody> <tr> <td><p><span class="term"><em class="parameter"><code>bytes</code></em> :</span></p></td> <td>a <a href="../glib/glib-Byte-Arrays.html#GBytes"><span class="type">GBytes</span></a> </td> </tr> <tr> <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> <td>new <a class="link" href="GInputStream.html" title="GInputStream"><span class="type">GInputStream</span></a> read from <em class="parameter"><code>bytes</code></em> </td> </tr> </tbody> </table></div> <p class="since">Since 2.34</p> </div> <hr> <div class="refsect2"> <a name="g-memory-input-stream-add-data"></a><h3>g_memory_input_stream_add_data ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_memory_input_stream_add_data (<em class="parameter"><code><a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> *stream</code></em>, <em class="parameter"><code>const <span class="type">void</span> *data</code></em>, <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gssize"><span class="type">gssize</span></a> len</code></em>, <em class="parameter"><code><a href="../glib/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> destroy</code></em>);</pre> <p> Appends <em class="parameter"><code>data</code></em> to data that can be read from the input stream </p> <div class="variablelist"><table border="0" class="variablelist"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody> <tr> <td><p><span class="term"><em class="parameter"><code>stream</code></em> :</span></p></td> <td>a <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> </td> </tr> <tr> <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td> <td>input data. <span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=len][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> guint8][<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span> </td> </tr> <tr> <td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td> <td>length of the data, may be -1 if <em class="parameter"><code>data</code></em> is a nul-terminated string</td> </tr> <tr> <td><p><span class="term"><em class="parameter"><code>destroy</code></em> :</span></p></td> <td>function that is called to free <em class="parameter"><code>data</code></em>, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. <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> <hr> <div class="refsect2"> <a name="g-memory-input-stream-add-bytes"></a><h3>g_memory_input_stream_add_bytes ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_memory_input_stream_add_bytes (<em class="parameter"><code><a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> *stream</code></em>, <em class="parameter"><code><a href="../glib/glib-Byte-Arrays.html#GBytes"><span class="type">GBytes</span></a> *bytes</code></em>);</pre> <p> Appends <em class="parameter"><code>bytes</code></em> to data that can be read from the input stream. </p> <div class="variablelist"><table border="0" class="variablelist"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody> <tr> <td><p><span class="term"><em class="parameter"><code>stream</code></em> :</span></p></td> <td>a <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> </td> </tr> <tr> <td><p><span class="term"><em class="parameter"><code>bytes</code></em> :</span></p></td> <td>input data</td> </tr> </tbody> </table></div> <p class="since">Since 2.34</p> </div> </div> <div class="refsect1"> <a name="GMemoryInputStream.see-also"></a><h2>See Also</h2> <a class="link" href="GMemoryOutputStream.html" title="GMemoryOutputStream"><span class="type">GMemoryOutputStream</span></a> </div> </div> <div class="footer"> <hr> Generated by GTK-Doc V1.18.1</div> </body> </html>