diff options
author | Alexander Malmberg <alexander@malmberg.org> | 2004-01-27 22:56:51 +0000 |
---|---|---|
committer | Andrew Pinski <pinskia@physics.uc.edu> | 2004-01-27 22:56:51 +0000 |
commit | 52995a18d245893409c812100d7aa39d3971c6da (patch) | |
tree | ebef194dfe9b0e6be8547b72f93f79a2374d0b90 | |
parent | 676c51739a5823facb3846714de43537311128cb (diff) |
2004-01-27 Alexander Malmberg <alexander@malmberg.org>
* selector.c: Rename register_selectors_from_list to
__objc_register_selectors_from_list. Update caller.
(__objc_register_selectors_from_list): Lock __objc_runtime_mutex
while registering selectors. Use __sel_register_typed_name instead
of sel_register_typed_name. Check for NULL method_name:s.
(pool_alloc_selector): New function.
(__sel_register_typed_name): Use pool_alloc_selector to allocate
selector structures.
* sendmsg.c (class_add_method_list): Use
__objc_register_selectors_from_list.
* objc/runtime.h: Add __objc_register_selectors_from_list.
git-svn-id: https://gcc.gnu.org/svn/gcc/branches/libobjc-branch@76763 138bc75d-0d04-0410-961f-82ee72b054a4
-rw-r--r-- | libobjc/ChangeLog.branch | 14 | ||||
-rw-r--r-- | libobjc/objc/runtime.h | 1 | ||||
-rw-r--r-- | libobjc/selector.c | 59 | ||||
-rw-r--r-- | libobjc/sendmsg.c | 18 |
4 files changed, 63 insertions, 29 deletions
diff --git a/libobjc/ChangeLog.branch b/libobjc/ChangeLog.branch index 6ab540517dd..5495b244686 100644 --- a/libobjc/ChangeLog.branch +++ b/libobjc/ChangeLog.branch @@ -1,3 +1,17 @@ +2004-01-27 Alexander Malmberg <alexander@malmberg.org> + + * selector.c: Rename register_selectors_from_list to + __objc_register_selectors_from_list. Update caller. + (__objc_register_selectors_from_list): Lock __objc_runtime_mutex + while registering selectors. Use __sel_register_typed_name instead + of sel_register_typed_name. Check for NULL method_name:s. + (pool_alloc_selector): New function. + (__sel_register_typed_name): Use pool_alloc_selector to allocate + selector structures. + * sendmsg.c (class_add_method_list): Use + __objc_register_selectors_from_list. + * objc/runtime.h: Add __objc_register_selectors_from_list. + 2004-01-25 Adam Fedor <fedor@gnu.org> Nicola Pero <n.pero@mi.flashnet.it> Andrew Pinski <pinskia@physics.uc.edu> diff --git a/libobjc/objc/runtime.h b/libobjc/objc/runtime.h index 72e79be30a7..edf8e5e71c3 100644 --- a/libobjc/objc/runtime.h +++ b/libobjc/objc/runtime.h @@ -49,6 +49,7 @@ extern void __objc_init_dispatch_tables(void); /* (objc-dispatch.c) */ extern void __objc_install_premature_dtable(Class); /* (objc-dispatch.c) */ extern void __objc_resolve_class_links(void); /* (objc-class.c) */ extern void __objc_register_selectors_from_class(Class); /* (objc-sel.c) */ +extern void __objc_register_selectors_from_list (MethodList_t); /* (selector.c) */ extern void __objc_update_dispatch_table_for_class (Class);/* (objc-msg.c) */ extern int __objc_init_thread_system(void); /* thread.c */ diff --git a/libobjc/selector.c b/libobjc/selector.c index 06743b03ff4..ae16efda400 100644 --- a/libobjc/selector.c +++ b/libobjc/selector.c @@ -35,8 +35,6 @@ static struct sarray *__objc_selector_array = 0; /* uid -> sel !T:MUTEX */ static struct sarray *__objc_selector_names = 0; /* uid -> name !T:MUTEX */ static cache_ptr __objc_selector_hash = 0; /* name -> uid !T:MUTEX */ -static void register_selectors_from_list (MethodList_t); - /* Number of selectors stored in each of the above tables */ unsigned int __objc_selector_max_index = 0; /* !T:MUTEX */ @@ -60,7 +58,7 @@ __objc_register_selectors_from_class (Class class) method_list = class->methods; while (method_list) { - register_selectors_from_list (method_list); + __objc_register_selectors_from_list (method_list); method_list = method_list->method_next; } } @@ -70,21 +68,27 @@ __objc_register_selectors_from_class (Class class) the record table. This is the routine that does the actual recording work. - This one is only called for Class objects. For categories, - class_add_method_list is called. + The name and type pointers in the method list must be permanent and + immutable. */ -static void -register_selectors_from_list (MethodList_t method_list) +void +__objc_register_selectors_from_list (MethodList_t method_list) { int i = 0; + + objc_mutex_lock (__objc_runtime_mutex); while (i < method_list->method_count) { Method_t method = &method_list->method_list[i]; - method->method_name - = sel_register_typed_name ((const char *) method->method_name, - method->method_types); + if (method->method_name) + { + method->method_name + = __sel_register_typed_name ((const char *) method->method_name, + method->method_types, 0, YES); + } i += 1; } + objc_mutex_unlock (__objc_runtime_mutex); } @@ -320,6 +324,35 @@ const char *sel_get_type (SEL selector) /* The uninstalled dispatch table */ extern struct sarray *__objc_uninstalled_dtable; +/* __sel_register_typed_name allocates lots of struct objc_selector:s + of 8 (16, if pointers are 64 bits) bytes at startup. To reduce the number + of malloc calls and memory lost to malloc overhead, we allocate + objc_selector:s in blocks here. This is only called from + __sel_register_typed_name, and __sel_register_typed_name may only be + called when __objc_runtime_mutex is locked. + + Note that the objc_selector:s allocated from __sel_register_typed_name + are never freed. + + 62 because 62 * sizeof (struct objc_selector) = 496 (992). This should + let malloc add some overhead and use a nice, round 512 (1024) byte chunk. + */ +#define SELECTOR_POOL_SIZE 62 +static struct objc_selector *selector_pool; +static int selector_pool_left; + +static struct objc_selector * +pool_alloc_selector(void) +{ + if (!selector_pool_left) + { + selector_pool = objc_malloc (sizeof (struct objc_selector) + * SELECTOR_POOL_SIZE); + selector_pool_left = SELECTOR_POOL_SIZE; + } + return &selector_pool[--selector_pool_left]; +} + /* Store the passed selector name in the selector record and return its selector value (value returned by sel_get_uid). Assumes that the calling function has locked down __objc_runtime_mutex. */ @@ -369,7 +402,7 @@ __sel_register_typed_name (const char *name, const char *types, if (orig) j = orig; else - j = objc_malloc (sizeof (struct objc_selector)); + j = pool_alloc_selector (); j->sel_id = (void *) i; /* Can we use the pointer or must copy types? Don't copy if NULL */ @@ -388,7 +421,7 @@ __sel_register_typed_name (const char *name, const char *types, if (orig) j = orig; else - j = objc_malloc (sizeof (struct objc_selector)); + j = pool_alloc_selector (); j->sel_id = (void *) i; /* Can we use the pointer or must copy types? Don't copy if NULL */ @@ -446,7 +479,7 @@ SEL sel_register_typed_name (const char *name, const char *type) { SEL ret; - + objc_mutex_lock (__objc_runtime_mutex); /* Assume that name and type are not constant static memory and need to be copied before put into a runtime structure. is_const == NO */ diff --git a/libobjc/sendmsg.c b/libobjc/sendmsg.c index f8234b7ba12..9a58ca66806 100644 --- a/libobjc/sendmsg.c +++ b/libobjc/sendmsg.c @@ -465,28 +465,14 @@ __objc_update_dispatch_table_for_class (Class class) This one is only called for categories. Class objects have their methods installed right away, and their selectors are made into - SEL's by the function __objc_register_selectors_from_class. */ + SEL's by the function __objc_register_selectors_from_class. */ void class_add_method_list (Class class, MethodList_t list) { - int i; - /* Passing of a linked list is not allowed. Do multiple calls. */ assert (! list->method_next); - /* Check for duplicates. */ - for (i = 0; i < list->method_count; ++i) - { - Method_t method = &list->method_list[i]; - - if (method->method_name) /* Sometimes these are NULL */ - { - /* This is where selector names are transmogrified to SEL's */ - method->method_name = - sel_register_typed_name ((const char *) method->method_name, - method->method_types); - } - } + __objc_register_selectors_from_list(list); /* Add the methods to the class's method list. */ list->method_next = class->methods; |