posix: add package

core/sys/posix/sys_times.odin

@@ -0,0 +1,38 @@
+package posix
+
+when ODIN_OS == .Darwin {
+	foreign import lib "system:System.framework"
+} else {
+	foreign import lib "system:c"
+}
+
+// sys/times.h - file access and modification times structure
+
+foreign lib {
+	/*
+	Get time accounting information.
+
+	Returns: -1 (setting errno) on failure, the elapsed real time, since an arbitrary point in the past
+	*/
+	@(link_name=LTIMES)
+	times :: proc(buffer: ^tms) -> clock_t ---
+}
+
+when ODIN_OS == .NetBSD {
+	@(private) LTIMES :: "__times13"
+} else {
+	@(private) LTIMES :: "times"
+}
+
+when ODIN_OS == .Darwin || ODIN_OS == .FreeBSD || ODIN_OS == .NetBSD || ODIN_OS == .OpenBSD {
+
+	tms :: struct {
+		tms_utime:  clock_t, /* [PSX] user CPU time */
+		tms_stime:  clock_t, /* [PSX] system CPU time */
+		tms_cutime: clock_t, /* [PSX] terminated children user CPU time */
+		tms_cstime: clock_t, /* [PSX] terminated children system CPU time */
+	}
+
+} else {
+	#panic("posix is unimplemented for the current target")
+}