From 295d83178d5567743c720e7405ac974b0bcab832 Mon Sep 17 00:00:00 2001
From: dmaclach <dmaclach@gmail.com>
Date: Tue, 23 Jan 2024 14:53:20 -0800
Subject: [PATCH] remove use of mach_absolute_time

`mach_absolute_time` is one of Apple's required reason APIs (https://developer.apple.com/documentation/kernel/1462446-mach_absolute_time?language=objc). Replace it with the suggested `clock_gettime_nsec_np(CLOCK_UPTIME_RAW)` so that we don't need a RRA entry in a privacy manifest.

issue #15029
---
 src/google/protobuf/map.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/google/protobuf/map.h b/src/google/protobuf/map.h
index 4ea42241dd..e28c1c6ea2 100644
--- a/src/google/protobuf/map.h
+++ b/src/google/protobuf/map.h
@@ -25,7 +25,7 @@
 #include <utility>
 
 #if !defined(GOOGLE_PROTOBUF_NO_RDTSC) && defined(__APPLE__)
-#include <mach/mach_time.h>
+#include <time.h>
 #endif
 
 #include "google/protobuf/stubs/common.h"
@@ -676,7 +676,7 @@ class PROTOBUF_EXPORT UntypedMapBase {
 #if defined(__APPLE__)
     // Use a commpage-based fast time function on Apple environments (MacOS,
     // iOS, tvOS, watchOS, etc).
-    s = mach_absolute_time();
+    s = clock_gettime_nsec_np(CLOCK_UPTIME_RAW);
 #elif defined(__x86_64__) && defined(__GNUC__)
     uint32_t hi, lo;
     asm volatile("rdtsc" : "=a"(lo), "=d"(hi));