| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/files/file_tracing.h" |
| |
| #include "base/files/file.h" |
| |
| namespace base { |
| |
| namespace { |
| FileTracing::Provider* g_provider = nullptr; |
| } |
| |
| // static |
| bool FileTracing::IsCategoryEnabled() { |
| return g_provider && g_provider->FileTracingCategoryIsEnabled(); |
| } |
| |
| // static |
| void FileTracing::SetProvider(FileTracing::Provider* provider) { |
| g_provider = provider; |
| } |
| |
| FileTracing::ScopedEnabler::ScopedEnabler() { |
| if (g_provider) |
| g_provider->FileTracingEnable(this); |
| } |
| |
| FileTracing::ScopedEnabler::~ScopedEnabler() { |
| if (g_provider) |
| g_provider->FileTracingDisable(this); |
| } |
| |
| FileTracing::ScopedTrace::ScopedTrace() : id_(nullptr) {} |
| |
| FileTracing::ScopedTrace::~ScopedTrace() { |
| if (id_ && g_provider) |
| g_provider->FileTracingEventEnd(name_, id_); |
| } |
| |
| void FileTracing::ScopedTrace::Initialize( |
| const char* name, File* file, int64 size) { |
| id_ = &file->trace_enabler_; |
| name_ = name; |
| g_provider->FileTracingEventBegin(name_, id_, file->tracing_path_, size); |
| } |
| |
| } // namespace base |