| Index: chrome/browser/power_save_blocker_mac.cc
|
| ===================================================================
|
| --- chrome/browser/power_save_blocker_mac.cc (revision 92629)
|
| +++ chrome/browser/power_save_blocker_mac.cc (working copy)
|
| @@ -1,64 +0,0 @@
|
| -// Copyright (c) 2011 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 "chrome/browser/power_save_blocker.h"
|
| -
|
| -#include <IOKit/pwr_mgt/IOPMLib.h>
|
| -
|
| -#include "base/threading/platform_thread.h"
|
| -#include "base/threading/thread.h"
|
| -#include "content/browser/browser_thread.h"
|
| -
|
| -namespace {
|
| -
|
| -// Power management cannot be done on the UI thread. IOPMAssertionCreate does a
|
| -// synchronous MIG call to configd, so if it is called on the main thread the UI
|
| -// is at the mercy of another process. See http://crbug.com/79559 and
|
| -// http://www.opensource.apple.com/source/IOKitUser/IOKitUser-514.16.31/pwr_mgt.subproj/IOPMLibPrivate.c .
|
| -base::Thread* g_power_thread;
|
| -IOPMAssertionID g_power_assertion;
|
| -
|
| -void CreateSleepAssertion() {
|
| - DCHECK_EQ(base::PlatformThread::CurrentId(), g_power_thread->thread_id());
|
| - IOReturn result;
|
| - DCHECK_EQ(g_power_assertion, kIOPMNullAssertionID);
|
| -
|
| - // Block just idle sleep; allow display sleep.
|
| - // See QA1340 <http://developer.apple.com/library/mac/#qa/qa2004/qa1340.html>
|
| - // for more details.
|
| - result = IOPMAssertionCreate(kIOPMAssertionTypeNoIdleSleep,
|
| - kIOPMAssertionLevelOn,
|
| - &g_power_assertion);
|
| - LOG_IF(ERROR, result != kIOReturnSuccess)
|
| - << "IOPMAssertionCreate: " << result;
|
| -}
|
| -
|
| -void ReleaseSleepAssertion() {
|
| - DCHECK_EQ(base::PlatformThread::CurrentId(), g_power_thread->thread_id());
|
| - IOReturn result;
|
| - DCHECK_NE(g_power_assertion, kIOPMNullAssertionID);
|
| - result = IOPMAssertionRelease(g_power_assertion);
|
| - g_power_assertion = kIOPMNullAssertionID;
|
| - LOG_IF(ERROR, result != kIOReturnSuccess)
|
| - << "IOPMAssertionRelease: " << result;
|
| -}
|
| -
|
| -} // namespace
|
| -
|
| -// Called only from UI thread.
|
| -void PowerSaveBlocker::ApplyBlock(bool blocking) {
|
| - DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
|
| -
|
| - if (!g_power_thread) {
|
| - g_power_assertion = kIOPMNullAssertionID;
|
| - g_power_thread = new base::Thread("PowerSaveBlocker");
|
| - g_power_thread->Start();
|
| - }
|
| -
|
| - MessageLoop* loop = g_power_thread->message_loop();
|
| - if (blocking)
|
| - loop->PostTask(FROM_HERE, NewRunnableFunction(CreateSleepAssertion));
|
| - else
|
| - loop->PostTask(FROM_HERE, NewRunnableFunction(ReleaseSleepAssertion));
|
| -}
|
|
|