/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
// Copyright (c) 2006-2008 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/win_util.h"
#include "nsThreadUtils.h"
namespace {
DWORD __stdcall ThreadFunc(
void* closure) {
PlatformThread::Delegate* delegate =
static_cast<PlatformThread::Delegate*>(closure);
delegate->ThreadMain();
return 0;
}
}
// 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) {
// Using NS_SetCurrentThreadName, as opposed to using platform APIs directly,
// also sets the thread name on the PRThread wrapper, and allows us to
// retrieve it using PR_GetThreadName.
NS_SetCurrentThreadName(name);
}
// static
bool PlatformThread::Create(size_t stack_size, Delegate* delegate,
PlatformThreadHandle* thread_handle) {
unsigned int flags = 0;
if (stack_size > 0) {
flags = STACK_SIZE_PARAM_IS_A_RESERVATION;
}
else {
stack_size = 0;
}
// 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, delegate, flags, NULL);
return *thread_handle != NULL;
}
// static
bool PlatformThread::CreateNonJoinable(size_t stack_size, Delegate* delegate) {
PlatformThreadHandle thread_handle;
bool result = Create(stack_size, delegate, &thread_handle);
CloseHandle(thread_handle);
return result;
}
// static
void PlatformThread::Join(PlatformThreadHandle thread_handle) {
DCHECK(thread_handle);
// 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);
}
