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Unified Diff: chrome/browser/power_save_blocker.h

Issue 287017: Disable system suspend while downloading files on win32.... (Closed) Base URL: http://src.chromium.org/svn/trunk/src/
Patch Set: 'Fix Created 11 years, 2 months ago
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Index: chrome/browser/power_save_blocker.h
===================================================================
--- chrome/browser/power_save_blocker.h (revision 0)
+++ chrome/browser/power_save_blocker.h (revision 0)
@@ -0,0 +1,42 @@
+// Copyright (c) 2009 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.
+
+#ifndef CHROME_BROWSER_POWER_SAVE_BLOCKER_H_
+#define CHROME_BROWSER_POWER_SAVE_BLOCKER_H_
+
+#include "base/basictypes.h"
+
+// A RAII-style class to block the system from entering low-power
+// (sleep) mode.
+class PowerSaveBlocker {
+ public:
+ explicit PowerSaveBlocker(bool enabled);
+ ~PowerSaveBlocker();
+
+ bool enabled() const { return enabled_; }
+
+ // Puts the sleep mode block into effect.
+ void Enable();
+ // Disables the sleep block.
+ void Disable();
+
+ private:
+ // Platform-specific function called when enable state is changed.
+ // Guarenteed to be called only from the UI thread.
+ static void ApplyBlock(bool blocked);
+
+ // Called only from UI thread.
+ static void AdjustBlockCount(int delta);
+
+ // Invokes AdjustBlockCount on the UI thread.
+ static void PostAdjustBlockCount(int delta);
+
+ bool enabled_;
+
+ static int blocker_count_;
+
+ DISALLOW_COPY_AND_ASSIGN(PowerSaveBlocker);
+};
+
+#endif // CHROME_BROWSER_POWER_SAVE_BLOCKER_H_
Property changes on: chrome\browser\power_save_blocker.h
___________________________________________________________________
Added: svn:eol-style
+ LF
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