Repo created

TMessagesProj/jni/voip/webrtc/base/profiler/stack_sampler_win.cc

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+// 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/profiler/stack_sampler.h"
+
+#include "base/profiler/native_unwinder_win.h"
+#include "base/profiler/stack_copier_suspend.h"
+#include "base/profiler/stack_sampler_impl.h"
+#include "base/profiler/suspendable_thread_delegate_win.h"
+#include "build/build_config.h"
+
+namespace base {
+
+// static
+std::unique_ptr<StackSampler> StackSampler::Create(
+    SamplingProfilerThreadToken thread_token,
+    ModuleCache* module_cache,
+    StackSamplerTestDelegate* test_delegate,
+    std::unique_ptr<Unwinder> native_unwinder) {
+  DCHECK(!native_unwinder);
+#if defined(ARCH_CPU_X86_64) || defined(ARCH_CPU_ARM64)
+  return std::make_unique<StackSamplerImpl>(
+      std::make_unique<StackCopierSuspend>(
+          std::make_unique<SuspendableThreadDelegateWin>(thread_token)),
+      std::make_unique<NativeUnwinderWin>(), module_cache, test_delegate);
+#else
+  return nullptr;
+#endif
+}
+
+// static
+size_t StackSampler::GetStackBufferSize() {
+  // The default Win32 reserved stack size is 1 MB and Chrome Windows threads
+  // currently always use the default, but this allows for expansion if it
+  // occurs. The size beyond the actual stack size consists of unallocated
+  // virtual memory pages so carries little cost (just a bit of wasted address
+  // space).
+  return 2 << 20;  // 2 MiB
+}
+
+}  // namespace base