--- /dev/null
+#ifndef __TOOLS_LINUX_MUTEX_H
+#define __TOOLS_LINUX_MUTEX_H
+
+#include <pthread.h>
+
+struct mutex {
+ pthread_mutex_t lock;
+};
+
+#define DEFINE_MUTEX(mutexname) \
+ struct mutex mutexname = { .lock = PTHREAD_MUTEX_INITIALIZER }
+
+#define mutex_init(l) pthread_mutex_init(&(l)->lock, NULL)
+#define mutex_lock(l) pthread_mutex_lock(&(l)->lock)
+#define mutex_trylock(l) (!pthread_mutex_trylock(&(l)->lock))
+#define mutex_unlock(l) pthread_mutex_unlock(&(l)->lock)
+
+#endif /* __TOOLS_LINUX_MUTEX_H */