Repo created

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

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+// Copyright 2017 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_mac.h"
+#include "base/profiler/stack_copier_suspend.h"
+#include "base/profiler/stack_sampler_impl.h"
+#include "base/profiler/suspendable_thread_delegate_mac.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);
+  return std::make_unique<StackSamplerImpl>(
+      std::make_unique<StackCopierSuspend>(
+          std::make_unique<SuspendableThreadDelegateMac>(thread_token)),
+      std::make_unique<NativeUnwinderMac>(module_cache), module_cache,
+      test_delegate);
+}
+
+// static
+size_t StackSampler::GetStackBufferSize() {
+  size_t stack_size = PlatformThread::GetDefaultThreadStackSize();
+
+  // If getrlimit somehow fails, return the default macOS main thread stack size
+  // of 8 MB (DFLSSIZ in <i386/vmparam.h>) with extra wiggle room.
+  return stack_size > 0 ? stack_size : 12 * 1024 * 1024;
+}
+
+}  // namespace base