rhythmbox-doc 2.96-0ubuntu4.1 / usr / share / gtk-doc / html / rhythmbox / rhythmbox-rb-debug.html

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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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                  <a href="#rhythmbox-rb-debug.description" class="shortcut">Description</a>
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<div class="refentry">
<a name="rhythmbox-rb-debug"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="rhythmbox-rb-debug.top_of_page"></a>rb-debug</span></h2>
<p>rb-debug — debugging support functions</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="rhythmbox-rb-debug.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">#define             <a class="link" href="rhythmbox-rb-debug.html#rb-debug" title="rb_debug()">rb_debug</a>                            (...)
<span class="returnvalue">void</span>                <a class="link" href="rhythmbox-rb-debug.html#rb-debug-init" title="rb_debug_init ()">rb_debug_init</a>                       (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> debug</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="rhythmbox-rb-debug.html#rb-debug-init-match" title="rb_debug_init_match ()">rb_debug_init_match</a>                 (<em class="parameter"><code>const <span class="type">char</span> *match</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="rhythmbox-rb-debug.html#rb-debug-matches" title="rb_debug_matches ()">rb_debug_matches</a>                    (<em class="parameter"><code>const <span class="type">char</span> *func</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *file</code></em>);
<span class="returnvalue">char</span> **             <a class="link" href="rhythmbox-rb-debug.html#rb-debug-get-args" title="rb_debug_get_args ()">rb_debug_get_args</a>                   (<em class="parameter"><code><span class="type">void</span></code></em>);
<span class="returnvalue">void</span>                <a class="link" href="rhythmbox-rb-debug.html#rb-debug-stop-in-debugger" title="rb_debug_stop_in_debugger ()">rb_debug_stop_in_debugger</a>           (<em class="parameter"><code><span class="type">void</span></code></em>);
typedef             <a class="link" href="rhythmbox-rb-debug.html#RBProfiler" title="RBProfiler">RBProfiler</a>;
<a class="link" href="rhythmbox-rb-debug.html#RBProfiler" title="RBProfiler"><span class="returnvalue">RBProfiler</span></a> *        <a class="link" href="rhythmbox-rb-debug.html#rb-profiler-new" title="rb_profiler_new ()">rb_profiler_new</a>                     (<em class="parameter"><code>const <span class="type">char</span> *name</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="rhythmbox-rb-debug.html#rb-profiler-dump" title="rb_profiler_dump ()">rb_profiler_dump</a>                    (<em class="parameter"><code><a class="link" href="rhythmbox-rb-debug.html#RBProfiler" title="RBProfiler"><span class="type">RBProfiler</span></a> *profiler</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="rhythmbox-rb-debug.html#rb-profiler-reset" title="rb_profiler_reset ()">rb_profiler_reset</a>                   (<em class="parameter"><code><a class="link" href="rhythmbox-rb-debug.html#RBProfiler" title="RBProfiler"><span class="type">RBProfiler</span></a> *profiler</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="rhythmbox-rb-debug.html#rb-profiler-free" title="rb_profiler_free ()">rb_profiler_free</a>                    (<em class="parameter"><code><a class="link" href="rhythmbox-rb-debug.html#RBProfiler" title="RBProfiler"><span class="type">RBProfiler</span></a> *profiler</code></em>);
#define             <a class="link" href="rhythmbox-rb-debug.html#rb-profile-start" title="rb_profile_start()">rb_profile_start</a>                    (msg)
#define             <a class="link" href="rhythmbox-rb-debug.html#rb-profile-end" title="rb_profile_end()">rb_profile_end</a>                      (msg)
</pre>
</div>
<div class="refsect1">
<a name="rhythmbox-rb-debug.description"></a><h2>Description</h2>
<p>
In addition to a simple debug output system, we have two distinct
profiling mechanisms for timing sections of code.
</p>
</div>
<div class="refsect1">
<a name="rhythmbox-rb-debug.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="rb-debug"></a><h3>rb_debug()</h3>
<pre class="programlisting">#define rb_debug(...) rb_debug_realf (__func__, __FILE__, __LINE__, TRUE, __VA_ARGS__)
</pre>
<p>
If the call site function or file name matches the current debug output
settings, the message will be formatted and printed to standard error,
including a timestamp, the thread ID, the file and function names, and
the line number.  A newline will be appended, so the format string shouldn't
include one.
</p>
</div>
<hr>
<div class="refsect2">
<a name="rb-debug-init"></a><h3>rb_debug_init ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                rb_debug_init                       (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> debug</code></em>);</pre>
<p>
Sets up debug output, with either all debug enabled
or none.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>debug</code></em> :</span></p></td>
<td>if TRUE, enable all debug output</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="rb-debug-init-match"></a><h3>rb_debug_init_match ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                rb_debug_init_match                 (<em class="parameter"><code>const <span class="type">char</span> *match</code></em>);</pre>
<p>
Sets up debug output, enabling debug output from file and function
names that contain the specified match string.
</p>
<p>
Also sets up a GLib log handler that will trigger a debugger
break for critical or warning level output if any debug output
at all is enabled.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>match</code></em> :</span></p></td>
<td>string to match functions and filenames against</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="rb-debug-matches"></a><h3>rb_debug_matches ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            rb_debug_matches                    (<em class="parameter"><code>const <span class="type">char</span> *func</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *file</code></em>);</pre>
<p>
Checks if <em class="parameter"><code>file</code></em> or <em class="parameter"><code>func</code></em> matches the current debug output settings.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>func</code></em> :</span></p></td>
<td>function to check</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>file</code></em> :</span></p></td>
<td>filename to check</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if matched</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="rb-debug-get-args"></a><h3>rb_debug_get_args ()</h3>
<pre class="programlisting"><span class="returnvalue">char</span> **             rb_debug_get_args                   (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Constructs arguments to pass to another process using
this debug output code that will produce the same debug output
settings.
</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>debug output arguments, must be freed with #<a href="/usr/share/gtk-doc/html/glib/glib-String-Utility-Functions.html#g-strfreev"><code class="function">g_strfreev()</code></a>. <span class="annotation">[<a href="http://foldoc.org/transfer%20full"><span class="acronym">transfer full</span></a>]</span>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="rb-debug-stop-in-debugger"></a><h3>rb_debug_stop_in_debugger ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                rb_debug_stop_in_debugger           (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Raises a SIGINT signal to get the attention of the debugger.
When not running under the debugger, we don't want to stop,
so we ignore the signal for just the moment that we raise it.
</p>
</div>
<hr>
<div class="refsect2">
<a name="RBProfiler"></a><h3>RBProfiler</h3>
<pre class="programlisting">typedef struct RBProfiler RBProfiler;
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="rb-profiler-new"></a><h3>rb_profiler_new ()</h3>
<pre class="programlisting"><a class="link" href="rhythmbox-rb-debug.html#RBProfiler" title="RBProfiler"><span class="returnvalue">RBProfiler</span></a> *        rb_profiler_new                     (<em class="parameter"><code>const <span class="type">char</span> *name</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="rb-profiler-dump"></a><h3>rb_profiler_dump ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                rb_profiler_dump                    (<em class="parameter"><code><a class="link" href="rhythmbox-rb-debug.html#RBProfiler" title="RBProfiler"><span class="type">RBProfiler</span></a> *profiler</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="rb-profiler-reset"></a><h3>rb_profiler_reset ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                rb_profiler_reset                   (<em class="parameter"><code><a class="link" href="rhythmbox-rb-debug.html#RBProfiler" title="RBProfiler"><span class="type">RBProfiler</span></a> *profiler</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="rb-profiler-free"></a><h3>rb_profiler_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                rb_profiler_free                    (<em class="parameter"><code><a class="link" href="rhythmbox-rb-debug.html#RBProfiler" title="RBProfiler"><span class="type">RBProfiler</span></a> *profiler</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="rb-profile-start"></a><h3>rb_profile_start()</h3>
<pre class="programlisting">#define rb_profile_start(msg) _rb_profile_log (__func__, __FILE__, __LINE__, RB_PROFILE_INDENTATION, "START", msg)
</pre>
<p>
Records a start point for profiling.
This profile mechanism operates by issuing file access
requests with filenames indicating the profile points.
Use 'strace -e access' to gather this information.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>msg</code></em> :</span></p></td>
<td>profile point message</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="rb-profile-end"></a><h3>rb_profile_end()</h3>
<pre class="programlisting">#define rb_profile_end(msg)   _rb_profile_log (__func__, __FILE__, __LINE__, -RB_PROFILE_INDENTATION, "END", msg)
</pre>
<p>
Records an end point for profiling.  See <em class="parameter"><code>rb_profile_start</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>msg</code></em> :</span></p></td>
<td>profile point message</td>
</tr></tbody>
</table></div>
</div>
</div>
</div>
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