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)); |
-} |