Index: base/platform_thread_win.cc |
=================================================================== |
--- base/platform_thread_win.cc (revision 70328) |
+++ base/platform_thread_win.cc (working copy) |
@@ -1,143 +0,0 @@ |
-// Copyright (c) 2010 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/platform_thread.h" |
- |
-#include "base/logging.h" |
-#include "base/thread_restrictions.h" |
-#include "base/win/windows_version.h" |
- |
-namespace { |
- |
-// The information on how to set the thread name comes from |
-// a MSDN article: http://msdn2.microsoft.com/en-us/library/xcb2z8hs.aspx |
-const DWORD kVCThreadNameException = 0x406D1388; |
- |
-typedef struct tagTHREADNAME_INFO { |
- DWORD dwType; // Must be 0x1000. |
- LPCSTR szName; // Pointer to name (in user addr space). |
- DWORD dwThreadID; // Thread ID (-1=caller thread). |
- DWORD dwFlags; // Reserved for future use, must be zero. |
-} THREADNAME_INFO; |
- |
-struct ThreadParams { |
- PlatformThread::Delegate* delegate; |
- bool joinable; |
-}; |
- |
-DWORD __stdcall ThreadFunc(void* params) { |
- ThreadParams* thread_params = static_cast<ThreadParams*>(params); |
- PlatformThread::Delegate* delegate = thread_params->delegate; |
- if (!thread_params->joinable) |
- base::ThreadRestrictions::SetSingletonAllowed(false); |
- delete thread_params; |
- delegate->ThreadMain(); |
- return NULL; |
-} |
- |
-// CreateThreadInternal() matches PlatformThread::Create(), except that |
-// |out_thread_handle| may be NULL, in which case a non-joinable thread is |
-// created. |
-bool CreateThreadInternal(size_t stack_size, |
- PlatformThread::Delegate* delegate, |
- PlatformThreadHandle* out_thread_handle) { |
- PlatformThreadHandle thread_handle; |
- unsigned int flags = 0; |
- if (stack_size > 0 && base::win::GetVersion() >= base::win::VERSION_XP) { |
- flags = STACK_SIZE_PARAM_IS_A_RESERVATION; |
- } else { |
- stack_size = 0; |
- } |
- |
- ThreadParams* params = new ThreadParams; |
- params->delegate = delegate; |
- params->joinable = out_thread_handle != NULL; |
- |
- // Using CreateThread here vs _beginthreadex makes thread creation a bit |
- // faster and doesn't require the loader lock to be available. Our code will |
- // have to work running on CreateThread() threads anyway, since we run code |
- // on the Windows thread pool, etc. For some background on the difference: |
- // http://www.microsoft.com/msj/1099/win32/win321099.aspx |
- thread_handle = CreateThread( |
- NULL, stack_size, ThreadFunc, params, flags, NULL); |
- if (!thread_handle) { |
- delete params; |
- return false; |
- } |
- |
- if (out_thread_handle) |
- *out_thread_handle = thread_handle; |
- else |
- CloseHandle(thread_handle); |
- return true; |
-} |
- |
-} // namespace |
- |
-// static |
-PlatformThreadId PlatformThread::CurrentId() { |
- return GetCurrentThreadId(); |
-} |
- |
-// static |
-void PlatformThread::YieldCurrentThread() { |
- ::Sleep(0); |
-} |
- |
-// static |
-void PlatformThread::Sleep(int duration_ms) { |
- ::Sleep(duration_ms); |
-} |
- |
-// static |
-void PlatformThread::SetName(const char* name) { |
- // The debugger needs to be around to catch the name in the exception. If |
- // there isn't a debugger, we are just needlessly throwing an exception. |
- if (!::IsDebuggerPresent()) |
- return; |
- |
- THREADNAME_INFO info; |
- info.dwType = 0x1000; |
- info.szName = name; |
- info.dwThreadID = CurrentId(); |
- info.dwFlags = 0; |
- |
- __try { |
- RaiseException(kVCThreadNameException, 0, sizeof(info)/sizeof(DWORD), |
- reinterpret_cast<DWORD_PTR*>(&info)); |
- } __except(EXCEPTION_CONTINUE_EXECUTION) { |
- } |
-} |
- |
-// static |
-bool PlatformThread::Create(size_t stack_size, Delegate* delegate, |
- PlatformThreadHandle* thread_handle) { |
- DCHECK(thread_handle); |
- return CreateThreadInternal(stack_size, delegate, thread_handle); |
-} |
- |
-// static |
-bool PlatformThread::CreateNonJoinable(size_t stack_size, Delegate* delegate) { |
- return CreateThreadInternal(stack_size, delegate, NULL); |
-} |
- |
-// static |
-void PlatformThread::Join(PlatformThreadHandle thread_handle) { |
- DCHECK(thread_handle); |
- // TODO(willchan): Enable this check once I can get it to work for Windows |
- // shutdown. |
- // Joining another thread may block the current thread for a long time, since |
- // the thread referred to by |thread_handle| may still be running long-lived / |
- // blocking tasks. |
-#if 0 |
- base::ThreadRestrictions::AssertIOAllowed(); |
-#endif |
- |
- // Wait for the thread to exit. It should already have terminated but make |
- // sure this assumption is valid. |
- DWORD result = WaitForSingleObject(thread_handle, INFINITE); |
- DCHECK_EQ(WAIT_OBJECT_0, result); |
- |
- CloseHandle(thread_handle); |
-} |