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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include <vector>
#include "base/command_line.h"
#include "base/functional/bind.h"
#include "base/functional/callback_forward.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/ref_counted.h"
#include "base/path_service.h"
#include "base/rand_util.h"
#include "base/task/thread_pool.h"
#include "build/build_config.h"
#include "content/public/browser/browser_child_process_host_iterator.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_data.h"
#include "content/public/browser/child_process_host.h"
#include "content/public/browser/gpu_utils.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/profiling_utils.h"
#if BUILDFLAG(IS_WIN)
#include "sandbox/policy/mojom/sandbox.mojom-shared.h"
#endif
namespace content {
namespace {
// A refcounted class that runs a closure once it's destroyed.
class RefCountedScopedClosureRunner
: public base::RefCounted<RefCountedScopedClosureRunner> {
public:
RefCountedScopedClosureRunner(base::OnceClosure callback);
private:
friend class base::RefCounted<RefCountedScopedClosureRunner>;
~RefCountedScopedClosureRunner() = default;
base::ScopedClosureRunner destruction_callback_;
};
RefCountedScopedClosureRunner::RefCountedScopedClosureRunner(
base::OnceClosure callback)
: destruction_callback_(std::move(callback)) {}
} // namespace
void AskAllChildrenToDumpProfilingData(base::OnceClosure callback) {
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess)) {
return;
}
auto closure_runner =
base::MakeRefCounted<RefCountedScopedClosureRunner>(std::move(callback));
// Ask all the renderer processes to dump their profiling data.
for (RenderProcessHost::iterator i(RenderProcessHost::AllHostsIterator());
!i.IsAtEnd(); i.Advance()) {
DCHECK(!i.GetCurrentValue()->GetProcess().is_current());
if (!i.GetCurrentValue()->IsInitializedAndNotDead())
continue;
i.GetCurrentValue()->DumpProfilingData(base::BindOnce(
[](scoped_refptr<RefCountedScopedClosureRunner>) {}, closure_runner));
}
// Ask all the other child processes to dump their profiling data
for (content::BrowserChildProcessHostIterator browser_child_iter;
!browser_child_iter.Done(); ++browser_child_iter) {
#if BUILDFLAG(IS_WIN)
// On Windows, elevated processes are never passed the profiling data file
// so cannot dump their data.
CHECK(browser_child_iter.GetData().sandbox_type.has_value());
if (browser_child_iter.GetData().sandbox_type ==
sandbox::mojom::Sandbox::kNoSandboxAndElevatedPrivileges) {
continue;
}
#endif
browser_child_iter.GetHost()->DumpProfilingData(base::BindOnce(
[](scoped_refptr<RefCountedScopedClosureRunner>) {}, closure_runner));
}
if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kInProcessGPU)) {
DumpGpuProfilingData(base::BindOnce(
[](scoped_refptr<RefCountedScopedClosureRunner>) {}, closure_runner));
}
}
} // namespace content
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