71b8393b6a
This name is only used for a DCHECK. Having it as a parameter leads to unnecessary string copying even on release builds. This CL instead adds a GetHistogramName function that is only called on debug builds. Checking if pointer is null is also moved outside HistogramAdd function. Having it there is confusing since Chromium implementation doesn't have it there. BUG=webrtc:6329 Review-Url: https://codereview.webrtc.org/2337883003 Cr-Commit-Position: refs/heads/master@{#14263}
78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
/*
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* Copyright 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <map>
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#include <memory>
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#include "webrtc/api/android/jni/classreferenceholder.h"
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#include "webrtc/api/android/jni/jni_helpers.h"
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#include "webrtc/api/android/jni/native_handle_impl.h"
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#include "webrtc/system_wrappers/include/metrics.h"
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#include "webrtc/system_wrappers/include/metrics_default.h"
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// Enables collection of native histograms and creating them.
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namespace webrtc_jni {
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JOW(void, Metrics_nativeEnable)(JNIEnv* jni, jclass) {
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webrtc::metrics::Enable();
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}
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// Gets and clears native histograms.
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JOW(jobject, Metrics_nativeGetAndReset)(JNIEnv* jni, jclass) {
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jclass j_metrics_class = FindClass(jni, "org/webrtc/Metrics");
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jmethodID j_add =
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GetMethodID(jni, j_metrics_class, "add",
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"(Ljava/lang/String;Lorg/webrtc/Metrics$HistogramInfo;)V");
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jclass j_info_class = FindClass(jni, "org/webrtc/Metrics$HistogramInfo");
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jmethodID j_add_sample = GetMethodID(jni, j_info_class, "addSample", "(II)V");
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// Create |Metrics|.
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jobject j_metrics = jni->NewObject(
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j_metrics_class, GetMethodID(jni, j_metrics_class, "<init>", "()V"));
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std::map<std::string, std::unique_ptr<webrtc::metrics::SampleInfo>>
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histograms;
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webrtc::metrics::GetAndReset(&histograms);
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for (const auto& kv : histograms) {
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// Create and add samples to |HistogramInfo|.
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jobject j_info = jni->NewObject(
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j_info_class, GetMethodID(jni, j_info_class, "<init>", "(III)V"),
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kv.second->min, kv.second->max,
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static_cast<int>(kv.second->bucket_count));
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for (const auto& sample : kv.second->samples) {
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jni->CallVoidMethod(j_info, j_add_sample, sample.first, sample.second);
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}
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// Add |HistogramInfo| to |Metrics|.
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jstring j_name = jni->NewStringUTF(kv.first.c_str());
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jni->CallVoidMethod(j_metrics, j_add, j_name, j_info);
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jni->DeleteLocalRef(j_name);
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jni->DeleteLocalRef(j_info);
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}
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CHECK_EXCEPTION(jni);
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return j_metrics;
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}
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JOW(jlong, Metrics_00024Histogram_nativeCreateCounts)
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(JNIEnv* jni, jclass, jstring j_name, jint min, jint max, jint buckets) {
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std::string name = JavaToStdString(jni, j_name);
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return jlongFromPointer(
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webrtc::metrics::HistogramFactoryGetCounts(name, min, max, buckets));
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}
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JOW(void, Metrics_00024Histogram_nativeAddSample)
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(JNIEnv* jni, jclass, jlong histogram, jint sample) {
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if (histogram) {
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HistogramAdd(reinterpret_cast<webrtc::metrics::Histogram*>(histogram),
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sample);
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}
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}
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} // namespace webrtc_jni
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