gbufferedinputstream.html

最新gtk中文资料集

</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em>&#160;:</span></p></td>
<td> a <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
><span class="type">gsize</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> a <a class="link" href="GInputStream.html" title="GInputStream"><span class="type">GInputStream</span></a>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3198427"></a><h3>
<a name="g-buffered-input-stream-get-buffer-size"></a>g_buffered_input_stream_get_buffer_size ()</h3>
<a class="indexterm" name="id3198441"></a><pre class="programlisting"><a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
>gsize</a>               g_buffered_input_stream_get_buffer_size
                                                        (<a class="link" href="GBufferedInputStream.html" title="GBufferedInputStream">GBufferedInputStream</a> *stream);</pre>
<p>
Gets the size of the input buffer.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>stream</code></em>&#160;:</span></p></td>
<td> <a class="link" href="GBufferedInputStream.html" title="GBufferedInputStream"><span class="type">GBufferedInputStream</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> the current buffer size.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3198509"></a><h3>
<a name="g-buffered-input-stream-set-buffer-size"></a>g_buffered_input_stream_set_buffer_size ()</h3>
<a class="indexterm" name="id3198523"></a><pre class="programlisting">void                g_buffered_input_stream_set_buffer_size
                                                        (<a class="link" href="GBufferedInputStream.html" title="GBufferedInputStream">GBufferedInputStream</a> *stream,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
>gsize</a> size);</pre>
<p>
Sets the size of the internal buffer of <em class="parameter"><code>stream</code></em> to <em class="parameter"><code>size</code></em>, or to the 
size of the contents of the buffer. The buffer can never be resized 
smaller than its current contents.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>stream</code></em>&#160;:</span></p></td>
<td> <a class="link" href="GBufferedInputStream.html" title="GBufferedInputStream"><span class="type">GBufferedInputStream</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em>&#160;:</span></p></td>
<td> a <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
><span class="type">gsize</span></a>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3198622"></a><h3>
<a name="g-buffered-input-stream-get-available"></a>g_buffered_input_stream_get_available ()</h3>
<a class="indexterm" name="id3198636"></a><pre class="programlisting"><a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
>gsize</a>               g_buffered_input_stream_get_available
                                                        (<a class="link" href="GBufferedInputStream.html" title="GBufferedInputStream">GBufferedInputStream</a> *stream);</pre>
<p>
Gets the size of the available data within the stream.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>stream</code></em>&#160;:</span></p></td>
<td> <a class="link" href="GBufferedInputStream.html" title="GBufferedInputStream"><span class="type">GBufferedInputStream</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> size of the available stream. 
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3198705"></a><h3>
<a name="g-buffered-input-stream-peek-buffer"></a>g_buffered_input_stream_peek_buffer ()</h3>
<a class="indexterm" name="id3198719"></a><pre class="programlisting">const void*         g_buffered_input_stream_peek_buffer (<a class="link" href="GBufferedInputStream.html" title="GBufferedInputStream">GBufferedInputStream</a> *stream,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
>gsize</a> *count);</pre>
<p>
Returns the buffer with the currently available bytes. The returned
buffer must not be modified and will become invalid when reading from
the stream or filling the buffer.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>stream</code></em>&#160;:</span></p></td>
<td> a <a class="link" href="GBufferedInputStream.html" title="GBufferedInputStream"><span class="type">GBufferedInputStream</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>count</code></em>&#160;:</span></p></td>
<td> a <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
><span class="type">gsize</span></a> to get the number of bytes available in the buffer.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> read-only buffer
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3198818"></a><h3>
<a name="g-buffered-input-stream-peek"></a>g_buffered_input_stream_peek ()</h3>
<a class="indexterm" name="id3198832"></a><pre class="programlisting"><a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
>gsize</a>               g_buffered_input_stream_peek        (<a class="link" href="GBufferedInputStream.html" title="GBufferedInputStream">GBufferedInputStream</a> *stream,
                                                         void *buffer,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
>gsize</a> offset,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
>gsize</a> count);</pre>
<p>
Peeks in the buffer, copying data of size <em class="parameter"><code>count</code></em> into <em class="parameter"><code>buffer</code></em>, 
offset <em class="parameter"><code>offset</code></em> bytes.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>stream</code></em>&#160;:</span></p></td>
<td> a <a class="link" href="GBufferedInputStream.html" title="GBufferedInputStream"><span class="type">GBufferedInputStream</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em>&#160;:</span></p></td>
<td> a pointer to an allocated chunk of memory.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em>&#160;:</span></p></td>
<td> a <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
><span class="type">gsize</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>count</code></em>&#160;:</span></p></td>
<td> a <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
><span class="type">gsize</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> a <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gsize"
><span class="type">gsize</span></a> of the number of bytes peeked, or <code class="literal">-1</code> on error.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3199012"></a><h3>
<a name="g-buffered-input-stream-fill"></a>g_buffered_input_stream_fill ()</h3>
<a class="indexterm" name="id3199025"></a><pre class="programlisting"><a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gssize"
>gssize</a>              g_buffered_input_stream_fill        (<a class="link" href="GBufferedInputStream.html" title="GBufferedInputStream">GBufferedInputStream</a> *stream,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gssize"
>gssize</a> count,
                                                         <a class="link" href="GCancellable.html" title="GCancellable">GCancellable</a> *cancellable,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"
>GError</a> **error);</pre>
<p>
Tries to read <em class="parameter"><code>count</code></em> bytes from the stream into the buffer. 
Will block during this read.
</p>
<p>
If <em class="parameter"><code>count</code></em> is zero, returns zero and does nothing. A value of <em class="parameter"><code>count</code></em>
larger than <a
href="/usr/share/gtk-doc/html/glib/glib-Limits-of-Basic-Types.html#G-MAXSSIZE:CAPS"
><code class="literal">G_MAXSSIZE</code></a> will cause a <a class="link" href="gio-GIOError.html#G-IO-ERROR-INVALID-ARGUMENT:CAPS"><code class="literal">G_IO_ERROR_INVALID_ARGUMENT</code></a> error.
</p>
<p>
On success, the number of bytes read into the buffer is returned.
It is not an error if this is not the same as the requested size, as it
can happen e.g. near the end of a file. Zero is returned on end of file
(or if <em class="parameter"><code>count</code></em> is zero),  but never otherwise.
</p>
<p>
If <em class="parameter"><code>cancellable</code></em> is not <a
href="/usr/share/gtk-doc/html/liboil/liboil-liboiljunk.html#NULL:CAPS"
><code class="literal">NULL</code></a>, then the operation can be cancelled by
triggering the cancellable object from another thread. If the operation
was cancelled, the error <a class="link" href="gio-GIOError.html#G-IO-ERROR-CANCELLED:CAPS"><code class="literal">G_IO_ERROR_CANCELLED</code></a> will be returned. If an
operation was partially finished when the operation was cancelled the
partial result will be returned, without an error.