diff options
Diffstat (limited to 'mdk-stage1/dietlibc/libpthread/pthread_spinlock.c')
-rw-r--r-- | mdk-stage1/dietlibc/libpthread/pthread_spinlock.c | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/mdk-stage1/dietlibc/libpthread/pthread_spinlock.c b/mdk-stage1/dietlibc/libpthread/pthread_spinlock.c deleted file mode 100644 index 449782adf..000000000 --- a/mdk-stage1/dietlibc/libpthread/pthread_spinlock.c +++ /dev/null @@ -1,38 +0,0 @@ -#include <time.h> -#include <pthread.h> -#include "thread_internal.h" - -static void __pthread_acquire(int * spinlock) -{ - int cnt = 0; - struct timespec tm; - - while (__testandset(spinlock)) { - if (cnt < MAX_SPIN_COUNT) { - sched_yield(); - cnt++; - } else { - tm.tv_sec = 0; - tm.tv_nsec = SPIN_SLEEP_DURATION; - __libc_nanosleep(&tm, 0); - cnt = 0; - } - } -} - -void __pthread_lock(struct _pthread_fastlock * lock) -{ - __pthread_acquire(&lock->__spinlock); -} - -int __pthread_trylock(struct _pthread_fastlock * lock) -{ - return __testandset(&lock->__spinlock); -} - -int __pthread_unlock(struct _pthread_fastlock * lock) -{ - return (lock->__spinlock = 0); -} - - |