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| author | Nicola Pero <n.pero@mi.flashnet.it> | 2001-03-15 03:18:09 +0100 |
|---|---|---|
| committer | Stan Shebs <shebs@gcc.gnu.org> | 2001-03-15 02:18:09 +0000 |
| commit | b894530e6d9633fc6497b3c404a3ec1bd1a341df (patch) | |
| tree | 6f6458a683b563d93474ff1881bc95959806736a /libobjc/thr.c | |
| parent | 84c041a1ffd28bd3e380d49f8ece24ade3c8baf2 (diff) | |
| download | gcc-b894530e6d9633fc6497b3c404a3ec1bd1a341df.zip gcc-b894530e6d9633fc6497b3c404a3ec1bd1a341df.tar.gz gcc-b894530e6d9633fc6497b3c404a3ec1bd1a341df.tar.bz2 | |
thr.c (objc_thread_add): New function.
2001-03-14 Nicola Pero <n.pero@mi.flashnet.it>
* thr.c (objc_thread_add): New function.
(objc_thread_remove): Ditto.
* objc/thr.h: Declare them.
* libobjc.def: Mention them.
From-SVN: r40479
Diffstat (limited to 'libobjc/thr.c')
| -rw-r--r-- | libobjc/thr.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/libobjc/thr.c b/libobjc/thr.c index f1c957a..437ee57 100644 --- a/libobjc/thr.c +++ b/libobjc/thr.c @@ -531,4 +531,33 @@ objc_condition_signal(objc_condition_t condition) return __objc_condition_signal(condition); } +/* Make the objc thread system aware that a thread which is managed + (started, stopped) by external code could access objc facilities + from now on. This is used when you are interfacing with some + external non-objc-based environment/system - you must call + objc_thread_add() before an alien thread makes any calls to + Objective-C. Do not cause the _objc_became_multi_threaded hook to + be executed. */ +void +objc_thread_add(void) +{ + objc_mutex_lock(__objc_runtime_mutex); + __objc_is_multi_threaded = 1; + __objc_runtime_threads_alive++; + objc_mutex_unlock(__objc_runtime_mutex); +} + +/* Make the objc thread system aware that a thread managed (started, + stopped) by some external code will no longer access objc and thus + can be forgotten by the objc thread system. Call + objc_thread_remove() when your alien thread is done with making + calls to Objective-C. */ +void +objc_thread_remove(void) +{ + objc_mutex_lock(__objc_runtime_mutex); + __objc_runtime_threads_alive--; + objc_mutex_unlock(__objc_runtime_mutex); +} + /* End of File */ |