Tidy up the sync dir, remove dead or mis-designed code in favour of OS primitives, switch rust_kernel to use a lock/signal pair and wait rather than spin.

1 files changed, 23 insertions, 0 deletions

diff --git a/src/rt/sync/lock_and_signal.h b/src/rt/sync/lock_and_signal.h
new file mode 100644
index 00000000..5a852d9d
--- /dev/null
+++ b/src/rt/sync/lock_and_signal.h
@@ -0,0 +1,23 @@
+#ifndef LOCK_AND_SIGNAL_H
+#define LOCK_AND_SIGNAL_H
+
+class lock_and_signal {
+#if defined(__WIN32__)
+    HANDLE _event;
+    CRITICAL_SECTION _cs;
+#else
+    pthread_cond_t _cond;
+    pthread_mutex_t _mutex;
+#endif
+public:
+    lock_and_signal();
+    virtual ~lock_and_signal();
+
+    void lock();
+    void unlock();
+    void wait();
+    void timed_wait(size_t timeout_in_ns);
+    void signal();
+};
+
+#endif /* LOCK_AND_SIGNAL_H */