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added some assertions to test g_signal_get_invocation_hint().

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Tue Dec 18 21:39:57 2001  Tim Janik  <timj@gtk.org>

        * testoverride.c: added some assertions to test
        g_signal_get_invocation_hint().

        * gsignal.[hc]: remove signal_id argument from
        g_signal_chain_from_overridden(), the parameters are assumed to match
        the innermost signal currently in emission for this instance.
        added g_signal_get_invocation_hint() to figure the invocation hint
        of the innermost signal emission of an instance.

        * gsignal.c (g_signal_list_ids): fix G_BSEARCH_ARRAY_NODES() to
        access a bsearch array and not a pointer to it (discovered by
        Sven Neumann).
This commit is contained in:
Tim Janik 2001-12-18 20:38:58 +00:00 committed by Tim Janik
parent b0a42f2058
commit 69c000f069
5 changed files with 87 additions and 42 deletions
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15
gobject/ChangeLog
View File

@ -1,3 +1,18 @@
Tue Dec 18 21:39:57 2001 Tim Janik <timj@gtk.org>
* testoverride.c: added some assertions to test
g_signal_get_invocation_hint().
* gsignal.[hc]: remove signal_id argument from
g_signal_chain_from_overridden(), the parameters are assumed to match
the innermost signal currently in emission for this instance.
added g_signal_get_invocation_hint() to figure the invocation hint
of the innermost signal emission of an instance.
* gsignal.c (g_signal_list_ids): fix G_BSEARCH_ARRAY_NODES() to
access a bsearch array and not a pointer to it (discovered by
Sven Neumann).
2001-12-17 Anders Carlsson <andersca@gnu.org>
* gtype.h (G_TYPE_FLAG_RESERVED_ID_BIT): Set the reserved bit

82
gobject/gsignal.c
View File

@ -657,15 +657,28 @@ emission_find (Emission *emission_list,
}
static inline Emission*
emission_find_innermost (Emission *emission_list,
gpointer instance)
emission_find_innermost (gpointer instance)
{
Emission *emission;
Emission *emission, *s = NULL, *c = NULL;
for (emission = emission_list; emission; emission = emission->next)
for (emission = g_restart_emissions; emission; emission = emission->next)
if (emission->instance == instance)
return emission;
return NULL;
{
s = emission;
break;
}
for (emission = g_recursive_emissions; emission; emission = emission->next)
if (emission->instance == instance)
{
c = emission;
break;
}
if (!s)
return c;
else if (!c)
return s;
else
return G_HAVE_GROWING_STACK ? MAX (c, s) : MIN (c, s);
}
static gint
@ -1008,7 +1021,7 @@ g_signal_list_ids (GType itype,
g_return_val_if_fail (n_ids != NULL, NULL);
SIGNAL_LOCK ();
keys = G_BSEARCH_ARRAY_NODES (&g_signal_key_bsa);
keys = G_BSEARCH_ARRAY_NODES (g_signal_key_bsa);
n_nodes = g_signal_key_bsa->n_nodes;
result = g_array_new (FALSE, FALSE, sizeof (guint));
@ -1389,10 +1402,10 @@ g_signal_override_class_closure (guint signal_id,
GClosure *class_closure)
{
SignalNode *node;
g_return_if_fail (signal_id > 0);
g_return_if_fail (class_closure != NULL);
SIGNAL_LOCK ();
node = LOOKUP_SIGNAL_NODE (signal_id);
if (!g_type_is_a (instance_type, node->itype))
@ -1400,7 +1413,7 @@ g_signal_override_class_closure (guint signal_id,
else
{
ClassClosure *cc = signal_find_class_closure (node, instance_type);
if (cc && cc->instance_type == instance_type)
g_warning ("%s: type `%s' is already overridden for signal id `%u'", G_STRLOC, g_type_name (instance_type), signal_id);
else
@ -1411,42 +1424,35 @@ g_signal_override_class_closure (guint signal_id,
void
g_signal_chain_from_overridden (const GValue *instance_and_params,
guint signal_id,
GValue *return_value)
{
GType chain_type = 0, restore_type = 0;
Emission *emission = NULL;
GClosure *closure = NULL;
guint n_params = 0;
gpointer instance;
SignalNode *node;
g_return_if_fail (instance_and_params != NULL);
instance = g_value_peek_pointer (instance_and_params);
g_return_if_fail (G_TYPE_CHECK_INSTANCE (instance));
g_return_if_fail (signal_id > 0);
SIGNAL_LOCK ();
node = LOOKUP_SIGNAL_NODE (signal_id);
if (node && g_type_is_a (G_TYPE_FROM_INSTANCE (instance), node->itype))
emission = emission_find_innermost (instance);
if (emission)
{
Emission *emission_list = node->flags & G_SIGNAL_NO_RECURSE ? g_restart_emissions : g_recursive_emissions;
emission = emission_find_innermost (emission_list, instance);
/* what we don't catch here is the scenario:
* 1) signal1 being in class_closure, emitting signal2
* 2) signal2 being in class closure, trying to chain signal1
* 3) signal1&G_SIGNAL_NO_RECURSE != signal2&G_SIGNAL_NO_RECURSE.
*
* also, it'd be a good idea to perform the same checks on parameters
* as g_signal_emitv() here.
SignalNode *node = LOOKUP_SIGNAL_NODE (emission->ihint.signal_id);
g_assert (node != NULL); /* paranoid */
/* we should probably do the same parameter checks as g_signal_emit() here.
*/
if (emission && emission->ihint.signal_id == signal_id && emission->chain_type != G_TYPE_NONE)
if (emission->chain_type != G_TYPE_NONE)
{
ClassClosure *cc = signal_find_class_closure (node, emission->chain_type);
g_assert (cc != NULL); /* closure currently in call stack */
n_params = node->n_params;
restore_type = cc->instance_type;
cc = signal_find_class_closure (node, g_type_parent (cc->instance_type));
if (cc && cc->instance_type != restore_type)
@ -1456,17 +1462,17 @@ g_signal_chain_from_overridden (const GValue *instance_and_params,
}
}
else
g_warning ("%s: signal id `%u' is not innermost class closure emission for instance `%p'", G_STRLOC, signal_id, instance);
g_warning ("%s: signal id `%u' cannot be chained from current emission stage for instance `%p'", G_STRLOC, node->signal_id, instance);
}
else
g_warning ("%s: signal id `%u' is invalid for instance `%p'", G_STRLOC, signal_id, instance);
g_warning ("%s: no signal is currently being emitted for instance `%p'", G_STRLOC, instance);
if (closure)
{
emission->chain_type = chain_type;
SIGNAL_UNLOCK ();
g_closure_invoke (closure,
return_value,
node->n_params + 1,
n_params + 1,
instance_and_params,
&emission->ihint);
SIGNAL_LOCK ();
@ -1475,6 +1481,20 @@ g_signal_chain_from_overridden (const GValue *instance_and_params,
SIGNAL_UNLOCK ();
}
GSignalInvocationHint*
g_signal_get_invocation_hint (gpointer instance)
{
Emission *emission = NULL;
g_return_val_if_fail (G_TYPE_CHECK_INSTANCE (instance), NULL);
SIGNAL_LOCK ();
emission = emission_find_innermost (instance);
SIGNAL_UNLOCK ();
return emission ? &emission->ihint : NULL;
}
gulong
g_signal_connect_closure_by_id (gpointer instance,
guint signal_id,

2
gobject/gsignal.h
View File

@ -152,6 +152,7 @@ gboolean g_signal_parse_name (const gchar *detailed_signal,
guint *signal_id_p,
GQuark *detail_p,
gboolean force_detail_quark);
GSignalInvocationHint* g_signal_get_invocation_hint (gpointer instance);
/* --- signal emissions --- */
@ -232,7 +233,6 @@ void g_signal_override_class_closure (guint signal_id,
GType instance_type,
GClosure *class_closure);
void g_signal_chain_from_overridden (const GValue *instance_and_params,
guint signal_id,
GValue *return_value);

15
gobject/testoverride.c
View File

@ -100,7 +100,8 @@ test_a_foo (TestI *self)
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_signal_chain_from_overridden (args, foo_signal_id, NULL);
g_assert (g_signal_get_invocation_hint (self)->signal_id == foo_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
@ -193,7 +194,8 @@ test_b_foo (TestA *self)
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_signal_chain_from_overridden (args, foo_signal_id, NULL);
g_assert (g_signal_get_invocation_hint (self)->signal_id == foo_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
@ -208,7 +210,8 @@ test_b_bar (TestI *self)
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_signal_chain_from_overridden (args, bar_signal_id, NULL);
g_assert (g_signal_get_invocation_hint (self)->signal_id == bar_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
@ -279,7 +282,8 @@ test_c_foo (TestA *self)
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_signal_chain_from_overridden (args, foo_signal_id, NULL);
g_assert (g_signal_get_invocation_hint (self)->signal_id == foo_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
@ -294,7 +298,8 @@ test_c_bar (TestI *self)
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_signal_chain_from_overridden (args, bar_signal_id, NULL);
g_assert (g_signal_get_invocation_hint (self)->signal_id == bar_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}

15
tests/gobject/override.c
View File

@ -100,7 +100,8 @@ test_a_foo (TestI *self)
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_signal_chain_from_overridden (args, foo_signal_id, NULL);
g_assert (g_signal_get_invocation_hint (self)->signal_id == foo_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
@ -193,7 +194,8 @@ test_b_foo (TestA *self)
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_signal_chain_from_overridden (args, foo_signal_id, NULL);
g_assert (g_signal_get_invocation_hint (self)->signal_id == foo_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
@ -208,7 +210,8 @@ test_b_bar (TestI *self)
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_signal_chain_from_overridden (args, bar_signal_id, NULL);
g_assert (g_signal_get_invocation_hint (self)->signal_id == bar_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
@ -279,7 +282,8 @@ test_c_foo (TestA *self)
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_signal_chain_from_overridden (args, foo_signal_id, NULL);
g_assert (g_signal_get_invocation_hint (self)->signal_id == foo_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
@ -294,7 +298,8 @@ test_c_bar (TestI *self)
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_signal_chain_from_overridden (args, bar_signal_id, NULL);
g_assert (g_signal_get_invocation_hint (self)->signal_id == bar_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}