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-rw-r--r--src/user/lib/std/mutex.c22
1 files changed, 0 insertions, 22 deletions
diff --git a/src/user/lib/std/mutex.c b/src/user/lib/std/mutex.c
deleted file mode 100644
index ac0ee8f..0000000
--- a/src/user/lib/std/mutex.c
+++ /dev/null
@@ -1,22 +0,0 @@
-#include <mutex.h>
-
-static uint32_t atomic_exchange(uint32_t* ptr, uint32_t newval) {
- uint32_t r;
- asm volatile("xchg (%%ecx), %%eax" : "=a"(r) : "c"(ptr), "a"(newval));
- return r;
-}
-
-void mutex_lock(uint32_t* mutex) {
- while (atomic_exchange(mutex, MUTEX_LOCKED) == MUTEX_LOCKED) {
- thread_sleep(1);
- }
-}
-
-int mutex_lockE(uint32_t* mutex) {
- if (atomic_exchange(mutex, MUTEX_LOCKED) == MUTEX_LOCKED) return 0;
- return 1;
-}
-
-void mutex_unlock(uint32_t* mutex) {
- *mutex = MUTEX_UNLOCKED;
-}