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Added recursive lock implementation (an adapted kernel version).

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34337 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
2009-11-29 09:54:58 +00:00
parent d78ffde5d1
commit 93b9f21335
2 changed files with 91 additions and 0 deletions
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headers/private/shared/locks.h
+14
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@@ -40,6 +40,20 @@ status_t rw_lock_read_unlock(rw_lock *lock);
status_t rw_lock_write_lock(rw_lock *lock);
status_t rw_lock_write_unlock(rw_lock *lock);
typedef struct recursive_lock {
mutex lock;
thread_id holder;
int recursion;
} recursive_lock;
extern status_t recursive_lock_init(recursive_lock *lock, const char *name);
extern void recursive_lock_destroy(recursive_lock *lock);
extern status_t recursive_lock_lock(recursive_lock *lock);
extern status_t recursive_lock_trylock(recursive_lock *lock);
extern void recursive_lock_unlock(recursive_lock *lock);
extern int32 recursive_lock_get_recursion(recursive_lock *lock);
#ifdef __cplusplus
} // extern "C"