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authorAlex AUVOLAT <alexis211@gmail.com>2012-05-01 12:20:45 +0200
committerAlex AUVOLAT <alexis211@gmail.com>2012-05-01 12:20:45 +0200
commit5cac9acd3aedc8043d4272d93c56805c46ff6214 (patch)
treeba9eb5ef86f7cf7afd4f7ab02de1d6bb86715632 /src/user/lib/include/mutex.h
parent66b32658d2e5aa99493dcb3abcb73cdb2cc6f0b5 (diff)
downloadTCE-5cac9acd3aedc8043d4272d93c56805c46ff6214.tar.gz
TCE-5cac9acd3aedc8043d4272d93c56805c46ff6214.zip
Some cleanup ; relocated the kernel at 0xC0000000
Diffstat (limited to 'src/user/lib/include/mutex.h')
-rw-r--r--src/user/lib/include/mutex.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/user/lib/include/mutex.h b/src/user/lib/include/mutex.h
new file mode 100644
index 0000000..a6b949b
--- /dev/null
+++ b/src/user/lib/include/mutex.h
@@ -0,0 +1,15 @@
+#ifndef DEF_MUTEX_H
+#define DEF_MUTEX_H
+
+#include <tce/syscall.h>
+
+#define MUTEX_LOCKED 1
+#define MUTEX_UNLOCKED 0
+
+//A mutex is just an uint32_t
+
+void mutex_lock(uint32_t* mutex); //wait for mutex to be free
+int mutex_lockE(uint32_t* mutex); //lock mutex only if free, returns !0 if locked, 0 if was busy
+void mutex_unlock(uint32_t* mutex);
+
+#endif