miso dengaku
forked RemoteIR
Fork of
RemoteIR
by 
Shinichiro Nakamura
Diff: Semaphore.h
- Revision:
- 10:c54fb1204d1e
- Parent:
- 9:dcfdac59ef74
- Child:
- 11:268cc2ab63bd
--- a/Semaphore.h Fri Sep 17 20:22:38 2010 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,32 +0,0 @@
-#ifndef _SEMAPHORE_H_
-#define _SEMAPHORE_H_
-
-/*
- * http://mbed.org/forum/mbed/topic/181/#comment-799
- */
-
-class Semaphore {
-public:
- Semaphore(): s(SemFree) {}
-
- bool take(bool block = true) {
- int oldval;
- do {
- oldval = __ldrex(&s);
- } while ((block && oldval == SemTaken) || __strex(SemTaken, &s) != 0);
- if (!block) {
- __clrex();
- }
- return (oldval == SemFree);
- }
-
- void release() {
- s = SemFree;
- }
-
-private:
- enum { SemFree, SemTaken };
- volatile int s;
-};
-
-#endif
\ No newline at end of file