Merge pull request #458 from Tetralux/linux-threads

Implement core:thread and core:sync on Unix using pthreads

1 files changed, 27 insertions, 0 deletions

diff --git a/core/sync/sync.odin b/core/sync/sync.odin
new file mode 100644
index 000000000..5a0512275
--- /dev/null
+++ b/core/sync/sync.odin
@@ -0,0 +1,27 @@
+package sync
+
+foreign {
+	@(link_name="llvm.x86.sse2.pause")
+	yield_processor :: proc() ---
+}
+
+Ticket_Mutex :: struct {
+	ticket:  u64,
+	serving: u64,
+}
+
+ticket_mutex_init :: proc(m: ^Ticket_Mutex) {
+	atomic_store(&m.ticket,  0, .Relaxed);
+	atomic_store(&m.serving, 0, .Relaxed);
+}
+
+ticket_mutex_lock :: inline proc(m: ^Ticket_Mutex) {
+	ticket := atomic_add(&m.ticket, 1, .Relaxed);
+	for ticket != m.serving {
+		yield_processor();
+	}
+}
+
+ticket_mutex_unlock :: inline proc(m: ^Ticket_Mutex) {
+	atomic_add(&m.serving, 1, .Relaxed);
+}