From 4eba2bb8d9f4f4ec246d268ee382788062cfff16 Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Sun, 15 May 2022 23:46:32 +0100
Subject: [PATCH] Add `_system_random` for Darwin

---
 core/math/rand/system_darwin.odin | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 core/math/rand/system_darwin.odin

diff --git a/core/math/rand/system_darwin.odin b/core/math/rand/system_darwin.odin
new file mode 100644
index 000000000..f51e4473e
--- /dev/null
+++ b/core/math/rand/system_darwin.odin
@@ -0,0 +1,21 @@
+package rand
+
+import "core:sys/darwin"
+
+_system_random :: proc() -> u32 {
+	for {
+		value: u32
+		ret := darwin.syscall_getentropy(([^]u8)(&value), 4)
+		if ret < 0 {
+			switch ret {
+			case -4: // EINTR
+				continue
+			case -78: // ENOSYS
+				panic("getentropy not available in kernel")
+			case:
+				panic("getentropy failed")
+			}
+		}
+		return value
+	}
+}
\ No newline at end of file