Rename RTC_HISTOGRAM_* macros to RTC_HISTOGRAM_*_SPARSE_* to indicate that these are for infrequent

webrtc/system_wrappers/include/metrics.h

 //
 // Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the LICENSE file in the root of the source
 // tree. An additional intellectual property rights grant can be found
 // in the file PATENTS.  All contributing project authors may
 // be found in the AUTHORS file in the root of the source tree.
 //
 
@@ skipping 51 matching lines @@
 // NOTE: this is a temporary solution.
 // The aim is to mimic the behaviour in Chromium's src/base/metrics/histograms.h
 // However as atomics are not supported in webrtc, this is for now a modified
 // and temporary solution. Note that the histogram is constructed/found for
 // each call. Therefore, for now only use this implementation for metrics
 // that do not need to be updated frequently.
 // TODO(asapersson): Change implementation when atomics are supported.
 // Also consider changing string to const char* when switching to atomics.
 
 // Histogram for counters.
-#define RTC_HISTOGRAM_COUNTS_100(name, sample) RTC_HISTOGRAM_COUNTS( \
-    name, sample, 1, 100, 50)
+#define RTC_HISTOGRAM_COUNTS_SPARSE_100(name, sample) \
+  RTC_HISTOGRAM_COUNTS_SPARSE(name, sample, 1, 100, 50)
 
-#define RTC_HISTOGRAM_COUNTS_200(name, sample) RTC_HISTOGRAM_COUNTS( \
-    name, sample, 1, 200, 50)
+#define RTC_HISTOGRAM_COUNTS_SPARSE_200(name, sample) \
+  RTC_HISTOGRAM_COUNTS_SPARSE(name, sample, 1, 200, 50)
 
-#define RTC_HISTOGRAM_COUNTS_1000(name, sample) RTC_HISTOGRAM_COUNTS( \
-    name, sample, 1, 1000, 50)
+#define RTC_HISTOGRAM_COUNTS_SPARSE_1000(name, sample) \
+  RTC_HISTOGRAM_COUNTS_SPARSE(name, sample, 1, 1000, 50)
 
-#define RTC_HISTOGRAM_COUNTS_10000(name, sample) RTC_HISTOGRAM_COUNTS( \
-    name, sample, 1, 10000, 50)
+#define RTC_HISTOGRAM_COUNTS_SPARSE_10000(name, sample) \
+  RTC_HISTOGRAM_COUNTS_SPARSE(name, sample, 1, 10000, 50)
 
-#define RTC_HISTOGRAM_COUNTS_100000(name, sample) RTC_HISTOGRAM_COUNTS( \
-    name, sample, 1, 100000, 50)
+#define RTC_HISTOGRAM_COUNTS_SPARSE_100000(name, sample) \
+  RTC_HISTOGRAM_COUNTS_SPARSE(name, sample, 1, 100000, 50)
 
-#define RTC_HISTOGRAM_COUNTS(name, sample, min, max, bucket_count) \
-    RTC_HISTOGRAM_COMMON_BLOCK(name, sample, \
-        webrtc::metrics::HistogramFactoryGetCounts( \
-            name, min, max, bucket_count))
+#define RTC_HISTOGRAM_COUNTS_SPARSE(name, sample, min, max, bucket_count) \
+  RTC_HISTOGRAM_COMMON_BLOCK_SLOW(name, sample, \
+      webrtc::metrics::HistogramFactoryGetCounts( \
+          name, min, max, bucket_count))
 
 // Histogram for percentage.
-#define RTC_HISTOGRAM_PERCENTAGE(name, sample) \
-    RTC_HISTOGRAM_ENUMERATION(name, sample, 101)
+#define RTC_HISTOGRAM_PERCENTAGE_SPARSE(name, sample) \
+  RTC_HISTOGRAM_ENUMERATION_SPARSE(name, sample, 101)
 
 // Histogram for enumerators.
 // |boundary| should be above the max enumerator sample.
-#define RTC_HISTOGRAM_ENUMERATION(name, sample, boundary) \
-    RTC_HISTOGRAM_COMMON_BLOCK(name, sample, \
-        webrtc::metrics::HistogramFactoryGetEnumeration(name, boundary))
+#define RTC_HISTOGRAM_ENUMERATION_SPARSE(name, sample, boundary) \
+  RTC_HISTOGRAM_COMMON_BLOCK_SLOW(name, sample, \
+      webrtc::metrics::HistogramFactoryGetEnumeration(name, boundary))
 
-#define RTC_HISTOGRAM_COMMON_BLOCK(constant_name, sample, \
-                                   factory_get_invocation) \
+#define RTC_HISTOGRAM_COMMON_BLOCK_SLOW(constant_name, sample, \
+                                        factory_get_invocation) \
   do { \
     webrtc::metrics::Histogram* histogram_pointer = factory_get_invocation; \
     webrtc::metrics::HistogramAdd(histogram_pointer, constant_name, sample); \
   } while (0)
 
-
 namespace webrtc {
 namespace metrics {
 
 // Time that should have elapsed for stats that are gathered once per call.
 enum { kMinRunTimeInSeconds = 10 };
 
 class Histogram;
 
 // Functions for getting pointer to histogram (constructs or finds the named
 // histogram).
@@ skipping 10 matching lines @@
 // Function for adding a |sample| to a histogram.
 // |name| can be used to verify that it matches the histogram name.
 void HistogramAdd(
     Histogram* histogram_pointer, const std::string& name, int sample);
 
 }  // namespace metrics
 }  // namespace webrtc
 
 #endif  // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_METRICS_H_