(kudu) 01/02: [util] remove last vestiges of chromium Atomics from metrics

[alexey]

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alexey pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/kudu.git

commit 6bdd0c3d8b747169f09150874cd8751debaf2ed1
Author: Alexey Serbin <ale...@apache.org>
AuthorDate: Tue Jun 11 12:06:42 2024 -0700

    [util] remove last vestiges of chromium Atomics from metrics
    
    Change-Id: I5feaeffa7912ef93479e2675ea6b27d694c1c5ee
    Reviewed-on: http://gerrit.cloudera.org:8080/21505
    Tested-by: Alexey Serbin <ale...@apache.org>
    Reviewed-by: Yingchun Lai <laiyingc...@apache.org>
---
 src/kudu/util/metrics.h | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/src/kudu/util/metrics.h b/src/kudu/util/metrics.h
index 7efc7e471..b53fd8a13 100644
--- a/src/kudu/util/metrics.h
+++ b/src/kudu/util/metrics.h
@@ -250,7 +250,6 @@
 #include "kudu/gutil/port.h"
 #include "kudu/gutil/ref_counted.h"
 #include "kudu/gutil/strings/substitute.h"
-#include "kudu/util/atomic.h"
 #include "kudu/util/hdr_histogram.h"
 #include "kudu/util/jsonwriter.h" // IWYU pragma: keep
 #include "kudu/util/locks.h"
@@ -1141,19 +1140,19 @@ class AtomicGauge : public Gauge {
     return scoped_refptr<Metric>(p);
   }
   T value() const {
-    return static_cast<T>(value_.Load(kMemOrderRelease));
+    return static_cast<T>(value_.load(std::memory_order_acquire));
   }
   void set_value(const T& value) {
     UpdateModificationEpoch();
-    value_.Store(static_cast<int64_t>(value), kMemOrderNoBarrier);
+    value_.store(static_cast<int64_t>(value), std::memory_order_relaxed);
   }
   void Increment() {
     UpdateModificationEpoch();
-    value_.IncrementBy(1, kMemOrderNoBarrier);
+    value_.fetch_add(1, std::memory_order_relaxed);
   }
   void IncrementBy(int64_t amount) {
     UpdateModificationEpoch();
-    value_.IncrementBy(amount, kMemOrderNoBarrier);
+    value_.fetch_add(amount, std::memory_order_relaxed);
   }
   void Decrement() {
     IncrementBy(-1);
@@ -1201,7 +1200,7 @@ class AtomicGauge : public Gauge {
                                 value());
   }
  private:
-  AtomicInt<int64_t> value_;
+  std::atomic<int64_t> value_;
   MergeType type_;
 
   DISALLOW_COPY_AND_ASSIGN(AtomicGauge);