From 3cb491273caa21876711e9b67d01aac33fee61c9 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi.kivity@gmail.com>
Date: Mon, 7 Jan 2013 16:33:54 +0200
Subject: [PATCH] pthread: implement mutex_lock, unlock, trylock()
---
libc/pthread.cc | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/libc/pthread.cc b/libc/pthread.cc
index 3f215e3ab..9df4259d5 100644
--- a/libc/pthread.cc
+++ b/libc/pthread.cc
@@ -54,3 +54,26 @@ int pthread_mutex_init(pthread_mutex_t* __restrict m,
new (m) mutex;
return 0;
}
+
+int pthread_mutex_lock(pthread_mutex_t *m)
+{
+ mutex* mm = reinterpret_cast<mutex*>(m);
+ mm->lock();
+ return 0;
+}
+
+int pthread_mutex_trylock(pthread_mutex_t *m)
+{
+ mutex* mm = reinterpret_cast<mutex*>(m);
+ if (!mm->try_lock()) {
+ return -EBUSY;
+ }
+ return 0;
+}
+
+int pthread_mutex_unlock(pthread_mutex_t *m)
+{
+ mutex* mm = reinterpret_cast<mutex*>(m);
+ mm->unlock();
+ return 0;
+}
--
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