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9c69c4625b
This reverts commit 8039cdbe48.
Reason for revert: remove functionality after measurement complete
Original change's description:
> Measure wall clock time of capture and encode processing.
>
> (NOTE: This and dependent CLs will be reverted in a few days after
> data collection from the field is complete.)
>
> This change introduces a new task queue concept, Voucher. They
> are associated with a currently running task tree. Whenever
> tasks are posted, the current voucher is inherited and set as
> current in the new task.
>
> The voucher exists for as long as there are direct and indirect
> tasks running that descend from the task where the voucher was
> created.
>
> Vouchers aggregate application-specific attachments, which perform
> logic unrelated to Voucher progression. This particular change adds
> an attachment that measures time from capture to all encode operations
> complete, and places it into the WebRTC.Video.CaptureToSendTimeMs UMA.
>
> An accompanying Chrome change crrev.com/c/4992282 ensures survival of
> vouchers across certain Mojo IPC.
>
> Bug: chromium:1498378
> Change-Id: I2a27800a4e5504f219d8b9d33c56a48904cf6dde
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/325400
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Markus Handell <handellm@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#41061}
Bug: chromium:1498378
Change-Id: I9503575fbc52f1946ca26fc3c17b623ea75cd3c5
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/327023
Commit-Queue: Markus Handell <handellm@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#41135}
81 lines
2 KiB
C++
81 lines
2 KiB
C++
/*
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* Copyright 2019 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 "api/task_queue/task_queue_base.h"
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#include "absl/base/attributes.h"
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#include "absl/base/config.h"
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#include "absl/functional/any_invocable.h"
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#include "api/units/time_delta.h"
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#include "rtc_base/checks.h"
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#if defined(ABSL_HAVE_THREAD_LOCAL)
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namespace webrtc {
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namespace {
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ABSL_CONST_INIT thread_local TaskQueueBase* current = nullptr;
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} // namespace
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TaskQueueBase* TaskQueueBase::Current() {
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return current;
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}
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TaskQueueBase::CurrentTaskQueueSetter::CurrentTaskQueueSetter(
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TaskQueueBase* task_queue)
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: previous_(current) {
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current = task_queue;
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}
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TaskQueueBase::CurrentTaskQueueSetter::~CurrentTaskQueueSetter() {
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current = previous_;
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}
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} // namespace webrtc
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#elif defined(WEBRTC_POSIX)
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#include <pthread.h>
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namespace webrtc {
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namespace {
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ABSL_CONST_INIT pthread_key_t g_queue_ptr_tls = 0;
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void InitializeTls() {
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RTC_CHECK(pthread_key_create(&g_queue_ptr_tls, nullptr) == 0);
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}
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pthread_key_t GetQueuePtrTls() {
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static pthread_once_t init_once = PTHREAD_ONCE_INIT;
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RTC_CHECK(pthread_once(&init_once, &InitializeTls) == 0);
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return g_queue_ptr_tls;
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}
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} // namespace
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TaskQueueBase* TaskQueueBase::Current() {
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return static_cast<TaskQueueBase*>(pthread_getspecific(GetQueuePtrTls()));
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}
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TaskQueueBase::CurrentTaskQueueSetter::CurrentTaskQueueSetter(
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TaskQueueBase* task_queue)
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: previous_(TaskQueueBase::Current()) {
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pthread_setspecific(GetQueuePtrTls(), task_queue);
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}
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TaskQueueBase::CurrentTaskQueueSetter::~CurrentTaskQueueSetter() {
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pthread_setspecific(GetQueuePtrTls(), previous_);
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}
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} // namespace webrtc
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#else
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#error Unsupported platform
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#endif
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