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-rw-r--r--contrib/libobjc/class.c96
1 files changed, 50 insertions, 46 deletions
diff --git a/contrib/libobjc/class.c b/contrib/libobjc/class.c
index e6c9437..1740f38 100644
--- a/contrib/libobjc/class.c
+++ b/contrib/libobjc/class.c
@@ -1,5 +1,6 @@
/* GNU Objective C Runtime class related functions
- Copyright (C) 1993, 1995, 1996, 1997, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1995, 1996, 1997, 2001, 2002
+ Free Software Foundation, Inc.
Contributed by Kresten Krab Thorup and Dennis Glatting.
Lock-free class table code designed and written from scratch by
@@ -163,10 +164,10 @@ static objc_mutex_t __class_table_lock = NULL;
/* Setup the table. */
static void
-class_table_setup ()
+class_table_setup (void)
{
/* Start - nothing in the table. */
- memset (class_table_array, 0, sizeof(class_node_ptr) * CLASS_TABLE_SIZE);
+ memset (class_table_array, 0, sizeof (class_node_ptr) * CLASS_TABLE_SIZE);
/* The table writing mutex. */
__class_table_lock = objc_mutex_allocate ();
@@ -339,7 +340,7 @@ class_table_next (struct class_table_enumerator **e)
#if 0 /* DEBUGGING FUNCTIONS */
/* Debugging function - print the class table. */
void
-class_table_print ()
+class_table_print (void)
{
int i;
@@ -362,7 +363,7 @@ class_table_print ()
function of hash key values. Useful to evaluate the hash function
in real cases. */
void
-class_table_print_histogram ()
+class_table_print_histogram (void)
{
int i, j;
int counter = 0;
@@ -408,64 +409,66 @@ class_table_print_histogram ()
/* This is a hook which is called by objc_get_class and
objc_lookup_class if the runtime is not able to find the class.
This may e.g. try to load in the class using dynamic loading. */
-Class (*_objc_lookup_class)(const char* name) = 0; /* !T:SAFE */
+Class (*_objc_lookup_class) (const char *name) = 0; /* !T:SAFE */
/* True when class links has been resolved. */
BOOL __objc_class_links_resolved = NO; /* !T:UNUSED */
-void __objc_init_class_tables()
+void
+__objc_init_class_tables (void)
{
/* Allocate the class hash table. */
- if(__class_table_lock)
+ if (__class_table_lock)
return;
- objc_mutex_lock(__objc_runtime_mutex);
+ objc_mutex_lock (__objc_runtime_mutex);
class_table_setup ();
- objc_mutex_unlock(__objc_runtime_mutex);
+ objc_mutex_unlock (__objc_runtime_mutex);
}
/* This function adds a class to the class hash table, and assigns the
class a number, unless it's already known. */
void
-__objc_add_class_to_hash(Class class)
+__objc_add_class_to_hash (Class class)
{
Class h_class;
- objc_mutex_lock(__objc_runtime_mutex);
+ objc_mutex_lock (__objc_runtime_mutex);
/* Make sure the table is there. */
- assert(__class_table_lock);
+ assert (__class_table_lock);
/* Make sure it's not a meta class. */
- assert(CLS_ISCLASS(class));
+ assert (CLS_ISCLASS (class));
/* Check to see if the class is already in the hash table. */
h_class = class_table_get_safe (class->name);
- if (!h_class)
+ if (! h_class)
{
/* The class isn't in the hash table. Add the class and assign a class
number. */
static unsigned int class_number = 1;
- CLS_SETNUMBER(class, class_number);
- CLS_SETNUMBER(class->class_pointer, class_number);
+ CLS_SETNUMBER (class, class_number);
+ CLS_SETNUMBER (class->class_pointer, class_number);
++class_number;
class_table_insert (class->name, class);
}
- objc_mutex_unlock(__objc_runtime_mutex);
+ objc_mutex_unlock (__objc_runtime_mutex);
}
/* Get the class object for the class named NAME. If NAME does not
identify a known class, the hook _objc_lookup_class is called. If
this fails, nil is returned. */
-Class objc_lookup_class (const char* name)
+Class
+objc_lookup_class (const char *name)
{
Class class;
@@ -475,7 +478,7 @@ Class objc_lookup_class (const char* name)
return class;
if (_objc_lookup_class)
- return (*_objc_lookup_class)(name);
+ return (*_objc_lookup_class) (name);
else
return 0;
}
@@ -494,20 +497,20 @@ objc_get_class (const char *name)
return class;
if (_objc_lookup_class)
- class = (*_objc_lookup_class)(name);
+ class = (*_objc_lookup_class) (name);
- if(class)
+ if (class)
return class;
- objc_error(nil, OBJC_ERR_BAD_CLASS,
- "objc runtime: cannot find class %s\n", name);
+ objc_error (nil, OBJC_ERR_BAD_CLASS,
+ "objc runtime: cannot find class %s\n", name);
return 0;
}
MetaClass
-objc_get_meta_class(const char *name)
+objc_get_meta_class (const char *name)
{
- return objc_get_class(name)->class_pointer;
+ return objc_get_class (name)->class_pointer;
}
/* This function provides a way to enumerate all the classes in the
@@ -516,22 +519,22 @@ objc_get_meta_class(const char *name)
For example:
id class;
void *es = NULL;
- while ((class = objc_next_class(&es)))
+ while ((class = objc_next_class (&es)))
... do something with class;
*/
Class
-objc_next_class(void **enum_state)
+objc_next_class (void **enum_state)
{
Class class;
- objc_mutex_lock(__objc_runtime_mutex);
+ objc_mutex_lock (__objc_runtime_mutex);
/* Make sure the table is there. */
- assert(__class_table_lock);
+ assert (__class_table_lock);
- class = class_table_next ((struct class_table_enumerator **)enum_state);
+ class = class_table_next ((struct class_table_enumerator **) enum_state);
- objc_mutex_unlock(__objc_runtime_mutex);
+ objc_mutex_unlock (__objc_runtime_mutex);
return class;
}
@@ -539,33 +542,34 @@ objc_next_class(void **enum_state)
/* Resolve super/subclass links for all classes. The only thing we
can be sure of is that the class_pointer for class objects point to
the right meta class objects. */
-void __objc_resolve_class_links()
+void
+__objc_resolve_class_links (void)
{
struct class_table_enumerator *es = NULL;
Class object_class = objc_get_class ("Object");
Class class1;
- assert(object_class);
+ assert (object_class);
- objc_mutex_lock(__objc_runtime_mutex);
+ objc_mutex_lock (__objc_runtime_mutex);
/* Assign subclass links. */
while ((class1 = class_table_next (&es)))
{
/* Make sure we have what we think we have. */
- assert (CLS_ISCLASS(class1));
- assert (CLS_ISMETA(class1->class_pointer));
+ assert (CLS_ISCLASS (class1));
+ assert (CLS_ISMETA (class1->class_pointer));
/* The class_pointer of all meta classes point to Object's meta
class. */
class1->class_pointer->class_pointer = object_class->class_pointer;
- if (!(CLS_ISRESOLV(class1)))
+ if (! CLS_ISRESOLV (class1))
{
- CLS_SETRESOLV(class1);
- CLS_SETRESOLV(class1->class_pointer);
+ CLS_SETRESOLV (class1);
+ CLS_SETRESOLV (class1->class_pointer);
- if(class1->super_class)
+ if (class1->super_class)
{
Class a_super_class
= objc_get_class ((char *) class1->super_class);
@@ -607,12 +611,12 @@ void __objc_resolve_class_links()
sub_class = sub_class->sibling_class)
{
sub_class->super_class = class1;
- if(CLS_ISCLASS(sub_class))
+ if (CLS_ISCLASS (sub_class))
sub_class->class_pointer->super_class = class1->class_pointer;
}
}
- objc_mutex_unlock(__objc_runtime_mutex);
+ objc_mutex_unlock (__objc_runtime_mutex);
}
@@ -622,7 +626,7 @@ void __objc_resolve_class_links()
Class
class_pose_as (Class impostor, Class super_class)
{
- if (!CLS_ISRESOLV (impostor))
+ if (! CLS_ISRESOLV (impostor))
__objc_resolve_class_links ();
/* Preconditions */
@@ -685,11 +689,11 @@ class_pose_as (Class impostor, Class super_class)
keys of the hashtable is, change all values that are superclass
into impostor. */
- objc_mutex_lock(__objc_runtime_mutex);
+ objc_mutex_lock (__objc_runtime_mutex);
class_table_replace (super_class, impostor);
- objc_mutex_unlock(__objc_runtime_mutex);
+ objc_mutex_unlock (__objc_runtime_mutex);
/* Next, we update the dispatch tables... */
__objc_update_dispatch_table_for_class (CLASSOF (impostor));
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