From 8020dcf385dc65ab8f69b4d26334acb65a985da8 Mon Sep 17 00:00:00 2001
From: Yuval Dolev <yuvaldolev2@gmail.com>
Date: Sun, 29 Dec 2019 00:11:34 +0200
Subject: [PATCH] Implemented system_now_time.

---
 platform_mac/mac_4ed_functions.mm | 12 +++++++++---
 platform_mac/mac_4ed_old.m        |  6 +++---
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/platform_mac/mac_4ed_functions.mm b/platform_mac/mac_4ed_functions.mm
index 291e3061..a59fbad1 100644
--- a/platform_mac/mac_4ed_functions.mm
+++ b/platform_mac/mac_4ed_functions.mm
@@ -56,7 +56,7 @@ system_get_canonical_sig(){
         [[NSString alloc] initWithBytes:name.data length:name.size encoding:NSUTF8StringEncoding];
     
     NSString *standardized_path_ns_str = [path_ns_str stringByStandardizingPath];
-    String_Const_u8 standardized_path = mac_SCu8((u8*)[standardized_path_ns_str UTF8String],[standardized_path_ns_str lengthOfBytesUsingEncoding:NSUTF8StringEncoding]);
+    String_Const_u8 standardized_path = SCu8((u8*)[standardized_path_ns_str UTF8String],[standardized_path_ns_str lengthOfBytesUsingEncoding:NSUTF8StringEncoding]);
     
     String_Const_u8 result = push_string_copy(arena, standardized_path);
     
@@ -361,9 +361,15 @@ system_get_proc_sig(){
 
 function
 system_now_time_sig(){
-    u64 result = 0;
+    u64 now = mach_absolute_time();
     
-    NotImplemented;
+    // NOTE(yuval): Elapsed nanoseconds calculation
+    u64 result = (u64)(((f32)now) *
+                       ((f32)mac_vars.timebase_info.numer) /
+                       ((f32)mac_vars.timebase_info.denom));
+    
+    // NOTE(yuval): Conversion to useconds
+    result *= 1.0E-3;
     
     return(result);
 }
diff --git a/platform_mac/mac_4ed_old.m b/platform_mac/mac_4ed_old.m
index ebadc1ca..fad0565e 100644
--- a/platform_mac/mac_4ed_old.m
+++ b/platform_mac/mac_4ed_old.m
@@ -814,9 +814,9 @@ osx_list_loadable_fonts(void){
         NSString *font_n = fonts[i];
         char *font_n_c = (char*)[font_n UTF8String];
         NSFont *font = [font_manager
-                fontWithFamily:font_n 
-                traits:NSUnboldFontMask|NSUnitalicFontMask 
-                weight:5 
+                fontWithFamily:font_n
+                traits:NSUnboldFontMask|NSUnitalicFontMask
+                weight:5
                 size:12];
         NSString *path = get_font_path(font);
         char *path_c = 0;