Index: components/tracing/child/child_memory_dump_manager_delegate_impl.cc |
diff --git a/components/tracing/child/child_memory_dump_manager_delegate_impl.cc b/components/tracing/child/child_memory_dump_manager_delegate_impl.cc |
deleted file mode 100644 |
index f0c4517b2ea4b44dedf3d0f9519402155f08ec67..0000000000000000000000000000000000000000 |
--- a/components/tracing/child/child_memory_dump_manager_delegate_impl.cc |
+++ /dev/null |
@@ -1,114 +0,0 @@ |
-// 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 "components/tracing/child/child_memory_dump_manager_delegate_impl.h" |
- |
-#include "base/single_thread_task_runner.h" |
-#include "build/build_config.h" |
-#include "components/tracing/child/child_trace_message_filter.h" |
-#include "components/tracing/common/process_metrics_memory_dump_provider.h" |
- |
-namespace tracing { |
- |
-namespace { |
-void AbortDumpRequest(const base::trace_event::MemoryDumpRequestArgs& args, |
- const base::trace_event::MemoryDumpCallback& callback) { |
- if (!callback.is_null()) |
- callback.Run(args.dump_guid, false /* success */); |
-} |
-} // namespace |
- |
-// static |
-ChildMemoryDumpManagerDelegateImpl* |
-ChildMemoryDumpManagerDelegateImpl::GetInstance() { |
- return base::Singleton< |
- ChildMemoryDumpManagerDelegateImpl, |
- base::LeakySingletonTraits<ChildMemoryDumpManagerDelegateImpl>>::get(); |
-} |
- |
-ChildMemoryDumpManagerDelegateImpl::ChildMemoryDumpManagerDelegateImpl() |
- : ctmf_(nullptr), |
- tracing_process_id_( |
- base::trace_event::MemoryDumpManager::kInvalidTracingProcessId) { |
-} |
- |
-ChildMemoryDumpManagerDelegateImpl::~ChildMemoryDumpManagerDelegateImpl() {} |
- |
-void ChildMemoryDumpManagerDelegateImpl::SetChildTraceMessageFilter( |
- ChildTraceMessageFilter* ctmf) { |
- auto* task_runner = ctmf ? (ctmf->ipc_task_runner()) : nullptr; |
- // Check that we are either registering the CTMF or tearing it down, but not |
- // replacing a valid instance with another one (should never happen). |
- DCHECK(!ctmf_ || (!ctmf && ctmf_task_runner_)); |
- ctmf_ = ctmf; |
- |
- { |
- base::AutoLock lock(lock_); |
- ctmf_task_runner_ = task_runner; |
- } |
- |
- if (ctmf) { |
- base::trace_event::MemoryDumpManager::GetInstance()->Initialize( |
- this /* delegate */, false /* is_coordinator */); |
- |
-#if !defined(OS_LINUX) && !defined(OS_NACL) |
- // On linux the browser process takes care of dumping process metrics. |
- // The child process is not allowed to do so due to BPF sandbox. |
- tracing::ProcessMetricsMemoryDumpProvider::RegisterForProcess( |
- base::kNullProcessId); |
-#endif |
- } |
-} |
- |
-// Invoked in child processes by the MemoryDumpManager. |
-void ChildMemoryDumpManagerDelegateImpl::RequestGlobalMemoryDump( |
- const base::trace_event::MemoryDumpRequestArgs& args, |
- const base::trace_event::MemoryDumpCallback& callback) { |
- // RequestGlobalMemoryDump can be called on any thread, cannot access |
- // ctmf_task_runner_ as it could be racy. |
- scoped_refptr<base::SingleThreadTaskRunner> ctmf_task_runner; |
- { |
- base::AutoLock lock(lock_); |
- ctmf_task_runner = ctmf_task_runner_; |
- } |
- |
- // Bail out if we receive a dump request from the manager before the |
- // ChildTraceMessageFilter has been initialized. |
- if (!ctmf_task_runner) { |
- VLOG(1) << base::trace_event::MemoryDumpManager::kLogPrefix |
- << " failed because child trace message filter hasn't been" |
- << " initialized"; |
- return AbortDumpRequest(args, callback); |
- } |
- |
- // Make sure we access |ctmf_| only on the thread where it lives to avoid |
- // races on shutdown. |
- if (!ctmf_task_runner->BelongsToCurrentThread()) { |
- const bool did_post_task = ctmf_task_runner->PostTask( |
- FROM_HERE, |
- base::Bind(&ChildMemoryDumpManagerDelegateImpl::RequestGlobalMemoryDump, |
- base::Unretained(this), args, callback)); |
- if (!did_post_task) |
- return AbortDumpRequest(args, callback); |
- return; |
- } |
- |
- // The ChildTraceMessageFilter could have been destroyed while hopping on the |
- // right thread. If this is the case, bail out. |
- if (!ctmf_) { |
- VLOG(1) << base::trace_event::MemoryDumpManager::kLogPrefix |
- << " failed because child trace message filter was" |
- << " destroyed while switching threads"; |
- return AbortDumpRequest(args, callback); |
- } |
- |
- // Send the request up to the browser process' MessageDumpmanager. |
- ctmf_->SendGlobalMemoryDumpRequest(args, callback); |
-} |
- |
-uint64_t ChildMemoryDumpManagerDelegateImpl::GetTracingProcessId() const { |
- return tracing_process_id_; |
-} |
- |
-} // namespace tracing |