From c23acb9b5636e7b908fba03d6b3584d8f80dba6d Mon Sep 17 00:00:00 2001
From: Derek Mauro <dmauro@google.com>
Date: Wed, 12 Apr 2023 13:26:48 -0700
Subject: Synchronization: Consolidate the logic for whether steady clocks are
 supported for relative timeouts

PiperOrigin-RevId: 523789416
Change-Id: Ide4cfdcae9ea7bffca3355c80ea9c8833a9536e6
---
 absl/synchronization/internal/kernel_timeout.cc | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

(limited to 'absl/synchronization/internal/kernel_timeout.cc')

diff --git a/absl/synchronization/internal/kernel_timeout.cc b/absl/synchronization/internal/kernel_timeout.cc
index bfbf282f..48ea6287 100644
--- a/absl/synchronization/internal/kernel_timeout.cc
+++ b/absl/synchronization/internal/kernel_timeout.cc
@@ -21,9 +21,13 @@
 #include <algorithm>
 #include <chrono>  // NOLINT(build/c++11)
 #include <cstdint>
+#include <cstdlib>
+#include <cstring>
 #include <ctime>
 #include <limits>
 
+#include "absl/base/attributes.h"
+#include "absl/base/call_once.h"
 #include "absl/base/config.h"
 #include "absl/time/time.h"
 
@@ -37,15 +41,12 @@ constexpr int64_t KernelTimeout::kMaxNanos;
 #endif
 
 int64_t KernelTimeout::SteadyClockNow() {
-#ifdef __GOOGLE_GRTE_VERSION__
-  // go/btm requires synchronized clocks, so we have to use the system
-  // clock.
-  return absl::GetCurrentTimeNanos();
-#else
+  if (!SupportsSteadyClock()) {
+    return absl::GetCurrentTimeNanos();
+  }
   return std::chrono::duration_cast<std::chrono::nanoseconds>(
              std::chrono::steady_clock::now().time_since_epoch())
       .count();
-#endif
 }
 
 KernelTimeout::KernelTimeout(absl::Time t) {
-- 
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