kinda a metal semaphore class

rendering_api/metal/src/core/sync/semaphore/metal_semaphore.h

@@ -0,0 +1,7 @@
+#pragma once
+#include "core/sync/semaphore/gryphn_semaphore.h"
+#import <Metal/MTLEvent.h>
+
+typedef struct gnPlatformSemaphore_t {
+    id<MTLEvent> event;
+} gnPlatformSemaphore;

rendering_api/metal/src/core/sync/semaphore/metal_semaphore.m

@@ -0,0 +1,13 @@
+#include "metal_semaphore.h"
+#include "core/devices/metal_output_devices.h"
+
+gnReturnCode gnCreateSemaphoreFn(struct gnSemaphore_t* semaphore, struct gnOutputDevice_t* device) {
+    semaphore->semaphore = malloc(sizeof(gnPlatformSemaphore));
+    semaphore->semaphore->event = [device->outputDevice->device newEvent];
+
+    return GN_SUCCESS;
+}
+void gnDestroySemaphoreFn(struct gnSemaphore_t* semaphore) {
+    [semaphore->semaphore->event release];
+    free(semaphore->semaphore);
+}