Karl Zweimüller / LcdWindow

Fork of LCD-Window which works with Enhanced TextLCD from Wim

Fork of LcdWindow by Hendrik Lipka

Diff: semaphore.h

Revision:
3:e5d5e2fe4bf6
Child:
9:2fe93daa2106
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/semaphore.h	Sun Nov 28 22:09:54 2010 +0000
@@ -0,0 +1,28 @@
+/**
+ * code from Igor Skochinsky
+ * taken from http://mbed.org/forum/mbed/post/799/
+*/
+
+#ifndef SEMAPHORE_H_
+#define SEMAPHORE_H_
+
+class Semaphore
+{
+public:
+  // constructor
+  Semaphore();
+  
+  // try to take the semaphore and return success
+  // by default block until succeeded
+  bool take(bool block = true);
+  // release the semaphore
+  void release();
+  
+ private:
+   enum { SemFree, SemTaken };
+  // semaphore value
+  int s;  
+
+};
+
+#endif