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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
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#ifndef __XFS_SUPPORT_MUTEX_H__ #define __XFS_SUPPORT_MUTEX_H__ #include <sys/param.h> #include <sys/lock.h> #include <sys/mutex.h> #include <sys/sx.h> /* * Map the mutex'es from IRIX to FreeBSD. Irix holds mutexes across * sleeps, so on FreeBSD we have a choice of sema, sx or lockmgr * to use as a underlining implemenation. Go with sx always locked * in exclusive mode for now as it gets all the benefits of witness * checking. */ typedef struct sx mutex_t; #define mutex_init(lock, type, name) sx_init(lock, name) #define mutex_lock(lock, num) sx_xlock(lock) #define mutex_trylock(lock) sx_try_xlock(lock) #define mutex_unlock(lock) sx_xunlock(lock) #define mutex_destroy(lock) sx_destroy(lock) /* * Type for mutex_init() */ #define MUTEX_DEFAULT 0 #endif /* __XFS_SUPPORT_MUTEX_H__ */