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Add some mainloop instrumentation

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Add trace points around adding, removing and dispatching of
sources.

https://bugzilla.gnome.org/show_bug.cgi?id=710741
This commit is contained in:
Matthias Clasen 2013-11-23 00:22:09 -05:00
parent 91dd70cf17
commit a9d93ca1df
3 changed files with 34 additions and 0 deletions
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22
glib/glib.stp.in
View File

@ -82,3 +82,25 @@ probe glib.slice_free = process("@ABS_GLIB_RUNTIME_LIBDIR@/libglib-2.0.so.0.@LT_
n_bytes = $arg2;
probestr = sprintf("glib.slice_free(n_bytes=%d) -> %p", n_bytes, mem);
}
/**
* * probe glib.main_before_dispatch - Called before dispatching a GSource
* * @source: name of the source
* * @callback: address of the callback
* */
probe glib.main_before_dispatch = process("@ABS_GLIB_RUNTIME_LIBDIR@/libglib-2.0.so.0.@LT_CURRENT@.@LT_REVISION@").mark("main__before_dispatch")
{
source = user_string2($arg1, "unnamed");
probestr = sprintf("glib.main_before_dispatch(source=%s)", source);
}
/**
* * probe glib.main_after_dispatch - Called after dispatching a GSource
* * @source: name of the source
* * @callback: address of the callback
* */
probe glib.main_after_dispatch = process("@ABS_GLIB_RUNTIME_LIBDIR@/libglib-2.0.so.0.@LT_CURRENT@.@LT_REVISION@").mark("main__after_dispatch")
{
source = user_string2($arg1, "unnamed");
probestr = sprintf("glib.main_after_dispatch(source=%s)", source);
}

4
glib/glib_probes.d
View File

@ -5,4 +5,8 @@ provider glib {
probe slice__alloc(void*, unsigned int);
probe slice__free(void*, unsigned int);
probe quark__new(char *, unsigned int);
probe main__before_dispatch (char *);
probe main__after_dispatch (char *);
probe main__source_attach(char*);
probe main__source_destroy(char*);
};

8
glib/gmain.c
View File

@ -73,6 +73,8 @@
#include <windows.h>
#endif /* G_OS_WIN32 */
#include "glib_trace.h"
#include "gmain.h"
#include "garray.h"
@ -1165,6 +1167,8 @@ g_source_attach (GSource *source,
g_return_val_if_fail (source->context == NULL, 0);
g_return_val_if_fail (!SOURCE_DESTROYED (source), 0);
TRACE (GLIB_MAIN_SOURCE_ATTACH (g_source_get_name (source)));
if (!context)
context = g_main_context_default ();
@ -1182,6 +1186,8 @@ g_source_destroy_internal (GSource *source,
GMainContext *context,
gboolean have_lock)
{
TRACE (GLIB_MAIN_SOURCE_DESTROY (g_source_get_name (source)));
if (!have_lock)
LOCK_CONTEXT (context);
@ -3058,7 +3064,9 @@ g_main_dispatch (GMainContext *context)
current->source = source;
current->depth++;
TRACE( GLIB_MAIN_BEFORE_DISPATCH (g_source_get_name (source)));
need_destroy = !(* dispatch) (source, callback, user_data);
TRACE( GLIB_MAIN_AFTER_DISPATCH (g_source_get_name (source)));
current->source = prev_source;
current->depth--;