diff options
Diffstat (limited to 'accel-pptpd/triton/spinlock.h')
| -rw-r--r-- | accel-pptpd/triton/spinlock.h | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/accel-pptpd/triton/spinlock.h b/accel-pptpd/triton/spinlock.h index 61f9b016..bb8dcf44 100644 --- a/accel-pptpd/triton/spinlock.h +++ b/accel-pptpd/triton/spinlock.h @@ -1,13 +1,35 @@ #ifndef __TRITON_SPINLOCK_H #define __TRITON_SPINLOCK_H -#ifdef GCC_SPINLOCK -typedef volatile unsigned int spinlock_t; +#if defined(FUTEX_SPINLOCK) + +/*#include <unistd.h> +#include <sys/syscall.h> +#include <linux/futex.h> +typedef volatile int __attribute__((aligned)) spinlock_t; +static inline void _spin_lock(spinlock_t *l) +{ + syscall(SYS_futex, l, FUTEX_WAIT, r, NULL, NULL, 0); +} +static inline void _spin_unlock(spinlock_t *l) +{ + syscall(SYS_futex, l, FUTEX_WAKE, 2, NULL, NULL, 0); +} +#define spin_lock(l) _spin_lock(l) +#define spin_unlock(l) _spin_unlock(l) +#define SPINLOCK_INITIALIZER 1 +#define spinlock_init(l) {*(l)=1;}*/ + +#elif defined(GCC_SPINLOCK) + +typedef volatile int __attribute__((aligned)) spinlock_t; #define spin_lock(l) {while(__sync_lock_test_and_set(l,1));} #define spin_unlock(l) __sync_lock_release(l) #define SPINLOCK_INITIALIZER 0 #define spinlock_init(l) {*(l)=0;} + #else + #include <pthread.h> typedef pthread_mutex_t spinlock_t; #define spin_lock(l) pthread_mutex_lock(l) |