ck_lockmutex_t
typedef ck_rv_t (*ck_lockmutex_t) (void *mutex);
ck_lockmutex_t lock_mutex;
typedef ck_rv_t (*ck_lockmutex_t) (void *mutex);
ck_lockmutex_t lock_mutex;
typedef ck_rv_t (*ck_lockmutex_t) (void *mutex);
ck_lockmutex_t lock_mutex;