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thr.c (objc_thread_add): New function.

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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
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Nicola Pero 2001-03-15 03:18:09 +01:00 committed by Stan Shebs
parent 84c041a1ff
commit b894530e6d
4 changed files with 40 additions and 0 deletions
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7
libobjc/ChangeLog
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@ -1,3 +1,10 @@
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.
2001-02-28 Ovidiu Predescu <ovidiu@cup.hp.com>
* objc-features.texi: Document the @compatibility_alias compiler

2
libobjc/libobjc.def
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@ -45,6 +45,8 @@ objc_thread_id
objc_thread_set_data
objc_thread_set_priority
objc_thread_yield
objc_thread_add
objc_thread_remove
__objc_class_name_Object
__objc_class_name_Protocol
__objc_class_name_NXConstantString

2
libobjc/objc/thr.h
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@ -96,6 +96,8 @@ int objc_thread_get_priority(void);
void * objc_thread_get_data(void);
int objc_thread_set_data(void *value);
objc_thread_t objc_thread_id(void);
void objc_thread_add(void);
void objc_thread_remove(void);
/*
Use this to set the hook function that will be called when the

29
libobjc/thr.c
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@ -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 */