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+<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>gio.SimpleAsyncResult</title><link rel="stylesheet" href="style.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.75.2"><link rel="home" href="index.html" title="PyGObject Reference Manual"><link rel="up" href="gio-class-reference.html" title="PyGio Class Reference"><link rel="prev" href="class-gioseekable.html" title="gio.Seekable"><link rel="next" href="class-giothemedicon.html" title="gio.ThemedIcon"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">gio.SimpleAsyncResult</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="class-gioseekable.html">Prev</a> </td><th width="60%" align="center">PyGio Class Reference</th><td width="20%" align="right"> <a accesskey="n" href="class-giothemedicon.html">Next</a></td></tr></table><hr></div><div class="refentry" title="gio.SimpleAsyncResult"><a name="class-giosimpleasyncresult"></a><div class="titlepage"></div><div class="refnamediv"><h2>gio.SimpleAsyncResult</h2><p>gio.SimpleAsyncResult — Simple asynchronous results implementation.</p></div><div class="refsect1" title="Synopsis"><a name="id3071813"></a><h2>Synopsis</h2><table bgcolor="#D0E0F0" width="100%"><tr><td><pre class="classsynopsis">class <span class="ooclass"><span class="classname">gio.SimpleAsyncResult</span></span>(<span class="ooclass"><span class="classname"><a class="link" href="class-gobject.html" title="gobject.GObject">gobject.GObject</a></span></span>):
+<code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--complete" title="gio.SimpleAsyncResult.complete">complete</a></span>(<span class="methodparam"></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--complete-in-idle" title="gio.SimpleAsyncResult.complete_in_idle">complete_in_idle</a></span>(<span class="methodparam"></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--get-op-res-gboolean" title="gio.SimpleAsyncResult.get_op_res_gboolean">get_op_res_gboolean</a></span>(<span class="methodparam"></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--get-op-res-gssize" title="gio.SimpleAsyncResult.get_op_res_gssize">get_op_res_gssize</a></span>(<span class="methodparam"></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--propagate-error" title="gio.SimpleAsyncResult.propagate_error">propagate_error</a></span>(<span class="methodparam"></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--set-handle-cancellation" title="gio.SimpleAsyncResult.set_handle_cancellation">set_handle_cancellation</a></span>(<span class="methodparam"><span class="parameter"><strong class="parameter"><code>handle_cancellation</code></strong></span></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--set-op-res-gboolean" title="gio.SimpleAsyncResult.set_op_res_gboolean">set_op_res_gboolean</a></span>(<span class="methodparam"><span class="parameter"><strong class="parameter"><code>op_res</code></strong></span></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--set-op-res-gssize" title="gio.SimpleAsyncResult.set_op_res_gssize">set_op_res_gssize</a></span>(<span class="methodparam"><span class="parameter"><strong class="parameter"><code>op_res</code></strong></span></span>)</code><br></pre></td></tr></table></div><div class="refsect1" title="Ancestry"><a name="id3072030"></a><h2>Ancestry</h2><pre class="synopsis">+-- <a class="link" href="class-gobject.html" title="gobject.GObject">gobject.GObject</a>
+ +-- <a class="link" href="class-giosimpleasyncresult.html" title="gio.SimpleAsyncResult">gio.SimpleAsyncResult</a>
+</pre></div><div class="refsect1" title="Implemented Interface"><a name="id3072056"></a><h2>Implemented Interface</h2><p>
+ <a class="link" href="class-giosimpleasyncresult.html" title="gio.SimpleAsyncResult"><code class="classname">gio.SimpleAsyncResult</code></a> implements
+ <a class="link" href="class-gioasyncresult.html" title="gio.AsyncResult"><code class="classname">gio.AsyncResult</code></a>.
+ </p></div><div class="refsect1" title="Description"><a name="id3072083"></a><h2>Description</h2><p>
+ Implements <a class="link" href="class-gioasyncresult.html" title="gio.AsyncResult"><code class="classname">gio.AsyncResult</code></a>
+ for simple cases. Most of the time, this will be all an application needs, and will be used transparently
+ Because of this, GSimpleAsyncResult is used throughout GIO for handling asynchronous functions.
+ </p><p>
+ <a class="link" href="class-giosimpleasyncresult.html" title="gio.SimpleAsyncResult"><code class="classname">gio.SimpleAsyncResult</code></a>
+ handles GAsyncReadyCallbacks, error reporting, operation cancellation and the final state of an
+ operation, completely transparent to the application. Results can be returned as a pointer e.g.
+ for functions that return data that is collected asynchronously, a boolean value for checking the
+ success or failure of an operation, or a gssize for operations which return the number of bytes modified
+ by the operation; all of the simple return cases are covered.
+ </p><p>
+ Most of the time, an application will not need to know of the details of this API; it is handled
+ transparently, and any necessary operations are handled by GAsyncResult's interface. However, if
+ implementing a new GIO module, for writing language bindings, or for complex applications that need
+ better control of how asynchronous operations are completed, it is important to understand this functionality.
+ </p><p>
+ <a class="link" href="class-giosimpleasyncresult.html" title="gio.SimpleAsyncResult"><code class="classname">gio.SimpleAsyncResult</code></a>
+ are tagged with the calling function to ensure that asynchronous functions and
+ their finishing functions are used together correctly.
+ </p><p>
+ An asynchronous operation can be made to ignore a cancellation event by calling
+ <code class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--set-handle-cancellation" title="gio.SimpleAsyncResult.set_handle_cancellation">gio.SimpleAsyncResult.set_handle_cancellation</a></code>()
+ with a
+ <a class="link" href="class-gioasyncresult.html" title="gio.AsyncResult"><code class="classname">gio.AsyncResult</code></a>
+ for the operation and <code class="literal">False</code>. This is useful for operations that are dangerous to cancel,
+ such as close (which would cause a leak if cancelled before being run).
+ </p><p>
+ <a class="link" href="class-gioasyncresult.html" title="gio.AsyncResult"><code class="classname">gio.AsyncResult</code></a>
+ can integrate into GLib's event loop, GMainLoop, or it can use GThreads if available.
+ <code class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--complete" title="gio.SimpleAsyncResult.complete">gio.SimpleAsyncResult.complete</a></code>()
+ will finish an I/O task directly within the main event loop.
+ <code class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--complete-in-idle" title="gio.SimpleAsyncResult.complete_in_idle">gio.SimpleAsyncResult.complete_in_idle</a></code>()
+ will integrate the I/O task into the main event loop as an idle function.
+
+ </p><p>
+ To set the results of an asynchronous function,
+ <code class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--set-op-res-gboolean" title="gio.SimpleAsyncResult.set_op_res_gboolean">gio.SimpleAsyncResult.set_op_res_gboolean</a></code>(), and
+ <code class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--set-op-res-gssize" title="gio.SimpleAsyncResult.set_op_res_gssize">gio.SimpleAsyncResult.set_op_res_gssize</a></code>()
+ are provided, setting the operation's result to a gboolean, or gssize, respectively.
+ </p><p>
+ Likewise, to get the result of an asynchronous function,
+ <code class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--get-op-res-gboolean" title="gio.SimpleAsyncResult.get_op_res_gboolean">gio.SimpleAsyncResult.get_op_res_gboolean</a></code>() and
+ <code class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--get-op-res-gssize" title="gio.SimpleAsyncResult.get_op_res_gssize">gio.SimpleAsyncResult.get_op_res_gssize</a></code>()
+ are provided, getting the operation's result as a gboolean and gssize, respectively.
+ </p></div><div class="refsect1" title="Methods"><a name="id3072281"></a><h2>Methods</h2><div class="refsect2" title="gio.SimpleAsyncResult.complete"><a name="method-giosimpleasyncresult--complete"></a><h3>gio.SimpleAsyncResult.complete</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">complete</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody></tbody></table><p>
+ The <code class="methodname">complete</code>() method completes an asynchronous I/O job.
+ Must be called in the main thread, as it invokes the callback that should be called
+ in the main thread. If you are in a different thread use
+ <code class="methodname"><a class="link" href="class-giosimpleasyncresult.html#method-giosimpleasyncresult--complete-in-idle" title="gio.SimpleAsyncResult.complete_in_idle">gio.SimpleAsyncResult.complete_in_idle</a></code>().
+ </p></div><div class="refsect2" title="gio.SimpleAsyncResult.complete_in_idle"><a name="method-giosimpleasyncresult--complete-in-idle"></a><h3>gio.SimpleAsyncResult.complete_in_idle</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">complete_in_idle</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody></tbody></table><p>
+ The <code class="methodname">complete_in_idle</code>() method completes an asynchronous
+ function in the main event loop using an idle function.
+ </p></div><div class="refsect2" title="gio.SimpleAsyncResult.get_op_res_gboolean"><a name="method-giosimpleasyncresult--get-op-res-gboolean"></a><h3>gio.SimpleAsyncResult.get_op_res_gboolean</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">get_op_res_gboolean</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td><code class="literal">True</code> if the operation's result was
+ <code class="literal">True</code>, <code class="literal">False</code> if the operation's result
+ was <code class="literal">False</code>.
+ </td></tr></tbody></table><p>
+ The <code class="methodname">get_op_res_gboolean</code>() method gets the operation
+ result boolean from within the asynchronous result.
+ </p></div><div class="refsect2" title="gio.SimpleAsyncResult.get_op_res_gssize"><a name="method-giosimpleasyncresult--get-op-res-gssize"></a><h3>gio.SimpleAsyncResult.get_op_res_gssize</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">get_op_res_gssize</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td>a gssize returned from the asynchronous function.
+ </td></tr></tbody></table><p>
+ The <code class="methodname">get_op_res_gssize</code>() method gets a gssize
+ from the asynchronous result.
+ </p></div><div class="refsect2" title="gio.SimpleAsyncResult.propagate_error"><a name="method-giosimpleasyncresult--propagate-error"></a><h3>gio.SimpleAsyncResult.propagate_error</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">propagate_error</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td><code class="literal">True</code> if the error was propegated
+ to dest. <code class="literal">False</code> otherwise.
+ </td></tr></tbody></table><p>
+ The <code class="methodname">propagate_error</code>() method propagates an error
+ from within the simple asynchronous result to a given destination.
+ </p></div><div class="refsect2" title="gio.SimpleAsyncResult.set_handle_cancellation"><a name="method-giosimpleasyncresult--set-handle-cancellation"></a><h3>gio.SimpleAsyncResult.set_handle_cancellation</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">set_handle_cancellation</span>(<span class="methodparam"><span class="parameter"><strong class="parameter"><code>handle_cancellation</code></strong></span></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><strong class="parameter"><code>handle_cancellation</code></strong> :</span></p></td><td>a boolean.
+ </td></tr></tbody></table><p>
+ The <code class="methodname">set_handle_cancellation</code>() method sets whether
+ to handle cancellation within the asynchronous operation.
+ </p></div><div class="refsect2" title="gio.SimpleAsyncResult.set_op_res_gboolean"><a name="method-giosimpleasyncresult--set-op-res-gboolean"></a><h3>gio.SimpleAsyncResult.set_op_res_gboolean</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">set_op_res_gboolean</span>(<span class="methodparam"><span class="parameter"><strong class="parameter"><code>op_res</code></strong></span></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><strong class="parameter"><code>op_res</code></strong> :</span></p></td><td>a boolean.
+ </td></tr></tbody></table><p>
+ The <code class="methodname">set_op_res_gboolean</code>() method sets the operation
+ result to a boolean within the asynchronous result.
+ </p></div><div class="refsect2" title="gio.SimpleAsyncResult.set_op_res_gssize"><a name="method-giosimpleasyncresult--set-op-res-gssize"></a><h3>gio.SimpleAsyncResult.set_op_res_gssize</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">set_op_res_gssize</span>(<span class="methodparam"><span class="parameter"><strong class="parameter"><code>op_res</code></strong></span></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><strong class="parameter"><code>op_res</code></strong> :</span></p></td><td>a gssize.
+ </td></tr></tbody></table><p>
+ The <code class="methodname">set_op_res_gssize</code>() method sets the operation
+ result within the asynchronous result to the given op_res.
+ </p></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="class-gioseekable.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="gio-class-reference.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="class-giothemedicon.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">gio.Seekable </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> gio.ThemedIcon</td></tr></table></div></body></html>