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giomodule: Print the type of each default GIO module

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This is useful for debugging in many situations. It’ll be printed with
G_MESSAGES_DEBUG=GLib-GIO or G_MESSAGES_DEBUG=all.

Mostly I need it for debugging the default GNetworkMonitor, but it will
work for all GIO module implementations.

Signed-off-by: Philip Withnall <withnall@endlessm.com>
This commit is contained in:
Philip Withnall 2018-09-12 23:45:46 +01:00
parent be10f19752
commit 92b3f22ad5
1 changed files with 13 additions and 0 deletions
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13
gio/giomodule.c
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@ -885,6 +885,8 @@ _g_io_module_get_default (const gchar *extension_point,
if (g_hash_table_lookup_extended (default_modules, extension_point, if (g_hash_table_lookup_extended (default_modules, extension_point,
&key, &impl)) &key, &impl))
{ {
/* Don’t debug here, since we’re returning a cached object which was
* already printed earlier. */
g_rec_mutex_unlock (&default_modules_lock); g_rec_mutex_unlock (&default_modules_lock);
return impl; return impl;
} }
@ -899,6 +901,8 @@ _g_io_module_get_default (const gchar *extension_point,
if (!ep) if (!ep)
{ {
g_debug ("%s: Failed to find extension point ‘%s’",
G_STRFUNC, extension_point);
g_warn_if_reached (); g_warn_if_reached ();
g_rec_mutex_unlock (&default_modules_lock); g_rec_mutex_unlock (&default_modules_lock);
return NULL; return NULL;
@ -911,6 +915,7 @@ _g_io_module_get_default (const gchar *extension_point,
if (preferred) if (preferred)
{ {
impl = try_implementation (extension_point, preferred, verify_func); impl = try_implementation (extension_point, preferred, verify_func);
extension = preferred;
if (impl) if (impl)
goto done; goto done;
} }
@ -939,6 +944,14 @@ _g_io_module_get_default (const gchar *extension_point,
impl ? g_object_ref (impl) : NULL); impl ? g_object_ref (impl) : NULL);
g_rec_mutex_unlock (&default_modules_lock); g_rec_mutex_unlock (&default_modules_lock);
if (impl != NULL)
g_debug ("%s: Found default implementation %s (%s) for ‘%s’",
G_STRFUNC, g_io_extension_get_name (extension),
G_OBJECT_TYPE_NAME (impl), extension_point);
else
g_debug ("%s: Failed to find default implementation for ‘%s’",
G_STRFUNC, extension_point);
return impl; return impl;
} }