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Do name collision checking more properly.

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This commit is contained in:
Přemysl Eric Janouch 2012-08-12 01:27:21 +02:00
parent bb224bafd0
commit 9366c42026
4 changed files with 122 additions and 38 deletions
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71
liblogdiag/ld-library.c
View File

@ -50,6 +50,8 @@ static gboolean foreach_dir (const gchar *path,
gpointer userdata, GError **error);
static gboolean ld_library_load_cb
(const gchar *base, const gchar *filename, gpointer userdata);
static void on_category_notify_name (LdSymbolCategory *category,
GParamSpec *pspec, gpointer user_data);
G_DEFINE_TYPE (LdLibrary, ld_library, G_TYPE_OBJECT);
@ -86,6 +88,14 @@ ld_library_init (LdLibrary *self)
self->priv->children = NULL;
}
static void
uninstall_category_cb (LdSymbolCategory *category, LdLibrary *self)
{
g_signal_handlers_disconnect_by_func (category,
on_category_notify_name, self);
g_object_unref (category);
}
static void
ld_library_finalize (GObject *gobject)
{
@ -95,7 +105,7 @@ ld_library_finalize (GObject *gobject)
g_object_unref (self->priv->lua);
g_slist_foreach (self->priv->children, (GFunc) g_object_unref, NULL);
g_slist_foreach (self->priv->children, (GFunc) uninstall_category_cb, self);
g_slist_free (self->priv->children);
/* Chain up to the parent class. */
@ -238,29 +248,12 @@ load_category_cb (const gchar *base, const gchar *filename, gpointer userdata)
static void
load_category_symbol_cb (LdSymbol *symbol, gpointer user_data)
{
const gchar *name;
LdSymbolCategory *cat;
const GSList *symbols, *iter;
g_return_if_fail (LD_IS_SYMBOL (symbol));
g_return_if_fail (LD_IS_SYMBOL_CATEGORY (user_data));
cat = LD_SYMBOL_CATEGORY (user_data);
name = ld_symbol_get_name (symbol);
/* Check for name collisions with other symbols. */
/* XXX: This check should probably be in _insert_symbol() and _category().
* And the warning should show the full path. */
symbols = ld_symbol_category_get_symbols (cat);
for (iter = symbols; iter; iter = iter->next)
{
if (!strcmp (name, ld_symbol_get_name (LD_SYMBOL (iter->data))))
{
g_warning ("attempted to insert multiple `%s' symbols into"
" category `%s'", name, ld_symbol_category_get_name (cat));
return;
}
}
ld_symbol_category_insert_symbol (cat, symbol, -1);
}
@ -473,7 +466,7 @@ ld_library_clear (LdLibrary *self)
{
g_return_if_fail (LD_IS_LIBRARY (self));
g_slist_foreach (self->priv->children, (GFunc) g_object_unref, NULL);
g_slist_foreach (self->priv->children, (GFunc) uninstall_category_cb, self);
g_slist_free (self->priv->children);
self->priv->children = NULL;
@ -481,6 +474,14 @@ ld_library_clear (LdLibrary *self)
LD_LIBRARY_GET_CLASS (self)->changed_signal, 0);
}
static void
on_category_notify_name (LdSymbolCategory *category,
GParamSpec *pspec, gpointer user_data)
{
/* XXX: We could disown the category if a name collision has occured. */
g_warning ("name of a library category has changed");
}
/**
* ld_library_insert_category:
* @self: an #LdLibrary object.
@ -489,16 +490,36 @@ ld_library_clear (LdLibrary *self)
* Negative values will append to the end of list.
*
* Insert a child category into the library.
*
* Return value: %TRUE if successful (no name collisions).
*/
void
gboolean
ld_library_insert_category (LdLibrary *self,
LdSymbolCategory *category, gint pos)
{
g_return_if_fail (LD_IS_LIBRARY (self));
g_return_if_fail (LD_IS_SYMBOL_CATEGORY (category));
const gchar *name;
const GSList *iter;
g_object_ref (category);
g_return_val_if_fail (LD_IS_LIBRARY (self), FALSE);
g_return_val_if_fail (LD_IS_SYMBOL_CATEGORY (category), FALSE);
/* Check for name collisions. */
name = ld_symbol_category_get_name (category);
for (iter = self->priv->children; iter; iter = iter->next)
{
if (!strcmp (name, ld_symbol_category_get_name (iter->data)))
{
g_warning ("attempted to insert multiple `%s' categories into"
" library", name);
return FALSE;
}
}
g_signal_connect (category, "notify::name",
G_CALLBACK (on_category_notify_name), self);
self->priv->children = g_slist_insert (self->priv->children, category, pos);
g_object_ref (category);
return TRUE;
}
/**
@ -516,8 +537,10 @@ ld_library_remove_category (LdLibrary *self, LdSymbolCategory *category)
if (g_slist_find (self->priv->children, category))
{
g_object_unref (category);
g_signal_handlers_disconnect_by_func (category,
on_category_notify_name, self);
self->priv->children = g_slist_remove (self->priv->children, category);
g_object_unref (category);
}
}

3
liblogdiag/ld-library.h
View File

@ -62,7 +62,8 @@ gboolean ld_library_load (LdLibrary *self, const gchar *directory);
LdSymbol *ld_library_find_symbol (LdLibrary *self, const gchar *identifier);
void ld_library_clear (LdLibrary *self);
void ld_library_insert_category (LdLibrary *self,
/* FIXME: This duplicates a part of LdSymbolCategory. */
gboolean ld_library_insert_category (LdLibrary *self,
LdSymbolCategory *category, gint pos);
void ld_library_remove_category (LdLibrary *self,
LdSymbolCategory *category);

82
liblogdiag/ld-symbol-category.c
View File

@ -50,6 +50,9 @@ static void ld_symbol_category_set_property (GObject *object, guint property_id,
const GValue *value, GParamSpec *pspec);
static void ld_symbol_category_finalize (GObject *gobject);
static void on_category_notify_name (LdSymbolCategory *category,
GParamSpec *pspec, gpointer user_data);
G_DEFINE_TYPE (LdSymbolCategory, ld_symbol_category, G_TYPE_OBJECT);
@ -150,6 +153,14 @@ ld_symbol_category_set_property (GObject *object, guint property_id,
}
}
static void
uninstall_category_cb (LdSymbolCategory *category, LdSymbolCategory *self)
{
g_signal_handlers_disconnect_by_func (category,
on_category_notify_name, self);
g_object_unref (category);
}
static void
ld_symbol_category_finalize (GObject *gobject)
{
@ -167,7 +178,8 @@ ld_symbol_category_finalize (GObject *gobject)
g_slist_foreach (self->priv->symbols, (GFunc) g_object_unref, NULL);
g_slist_free (self->priv->symbols);
g_slist_foreach (self->priv->subcategories, (GFunc) g_object_unref, NULL);
g_slist_foreach (self->priv->subcategories,
(GFunc) uninstall_category_cb, self);
g_slist_free (self->priv->subcategories);
/* Chain up to the parent class. */
@ -298,17 +310,35 @@ ld_symbol_category_get_image_path (LdSymbolCategory *self)
* @pos: the position at which the symbol will be inserted.
* Negative values will append to the end of list.
*
* Insert a symbol into the category. Doesn't check for duplicates.
* Insert a symbol into the category.
*
* Return value: %TRUE if successful (no name collisions).
*/
void
gboolean
ld_symbol_category_insert_symbol (LdSymbolCategory *self,
LdSymbol *symbol, gint pos)
{
g_return_if_fail (LD_IS_SYMBOL_CATEGORY (self));
g_return_if_fail (LD_IS_SYMBOL (symbol));
const gchar *name;
const GSList *iter;
g_return_val_if_fail (LD_IS_SYMBOL_CATEGORY (self), FALSE);
g_return_val_if_fail (LD_IS_SYMBOL (symbol), FALSE);
/* Check for name collisions. */
name = ld_symbol_get_name (symbol);
for (iter = self->priv->symbols; iter; iter = iter->next)
{
if (!strcmp (name, ld_symbol_get_name (iter->data)))
{
g_warning ("attempted to insert multiple `%s' symbols into"
" category `%s'", name, ld_symbol_category_get_name (self));
return FALSE;
}
}
g_object_ref (symbol);
self->priv->symbols = g_slist_insert (self->priv->symbols, symbol, pos);
g_object_ref (symbol);
return TRUE;
}
/**
@ -346,6 +376,14 @@ ld_symbol_category_get_symbols (LdSymbolCategory *self)
}
static void
on_category_notify_name (LdSymbolCategory *category,
GParamSpec *pspec, gpointer user_data)
{
/* XXX: We could disown the category if a name collision has occured. */
g_warning ("name of a library subcategory has changed");
}
/**
* ld_symbol_category_insert_subcategory:
* @self: an #LdSymbolCategory object.
@ -353,18 +391,38 @@ ld_symbol_category_get_symbols (LdSymbolCategory *self)
* @pos: the position at which the category will be inserted.
* Negative values will append to the end of list.
*
* Insert a subcategory into the category. Doesn't check for duplicates.
* Insert a subcategory into the category.
*
* Return value: %TRUE if successful (no name collisions).
*/
void
gboolean
ld_symbol_category_insert_subcategory (LdSymbolCategory *self,
LdSymbolCategory *category, gint pos)
{
g_return_if_fail (LD_IS_SYMBOL_CATEGORY (self));
g_return_if_fail (LD_IS_SYMBOL_CATEGORY (category));
const gchar *name;
const GSList *iter;
g_object_ref (category);
g_return_val_if_fail (LD_IS_SYMBOL_CATEGORY (self), FALSE);
g_return_val_if_fail (LD_IS_SYMBOL_CATEGORY (category), FALSE);
/* Check for name collisions. */
name = ld_symbol_category_get_name (category);
for (iter = self->priv->subcategories; iter; iter = iter->next)
{
if (!strcmp (name, ld_symbol_category_get_name (iter->data)))
{
g_warning ("attempted to insert multiple `%s' subcategories into"
" category `%s'", name, ld_symbol_category_get_name (self));
return FALSE;
}
}
g_signal_connect (category, "notify::name",
G_CALLBACK (on_category_notify_name), self);
self->priv->subcategories
= g_slist_insert (self->priv->subcategories, category, pos);
g_object_ref (category);
return TRUE;
}
/**
@ -383,6 +441,8 @@ ld_symbol_category_remove_subcategory (LdSymbolCategory *self,
if (g_slist_find (self->priv->subcategories, category))
{
g_signal_handlers_disconnect_by_func (category,
on_category_notify_name, self);
self->priv->subcategories
= g_slist_remove (self->priv->subcategories, category);
g_object_unref (category);

4
liblogdiag/ld-symbol-category.h
View File

@ -66,13 +66,13 @@ void ld_symbol_category_set_image_path (LdSymbolCategory *self,
const gchar *image_path);
const gchar *ld_symbol_category_get_image_path (LdSymbolCategory *self);
void ld_symbol_category_insert_symbol (LdSymbolCategory *self,
gboolean ld_symbol_category_insert_symbol (LdSymbolCategory *self,
LdSymbol *symbol, gint pos);
void ld_symbol_category_remove_symbol (LdSymbolCategory *self,
LdSymbol *symbol);
const GSList *ld_symbol_category_get_symbols (LdSymbolCategory *self);
void ld_symbol_category_insert_subcategory (LdSymbolCategory *self,
gboolean ld_symbol_category_insert_subcategory (LdSymbolCategory *self,
LdSymbolCategory *category, gint pos);
void ld_symbol_category_remove_subcategory (LdSymbolCategory *self,
LdSymbolCategory *category);