gecko/netwerk/cache2/CacheObserver.h

45 lines
1.0 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef CacheObserver__h__
#define CacheObserver__h__
#include "nsIObserver.h"
#include "nsWeakReference.h"
#include <algorithm>
namespace mozilla {
namespace net {
class CacheObserver : public nsIObserver
, public nsSupportsWeakReference
{
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
virtual ~CacheObserver() {}
static nsresult Init();
static nsresult Shutdown();
static CacheObserver* Self() { return sSelf; }
// Access to preferences
static uint32_t const MemoryLimit() // <0.5MB,1024MB>, result in bytes.
{ return std::max(512U, std::min(1048576U, sMemoryLimit)) << 10; }
static bool const UseNewCache();
private:
static CacheObserver* sSelf;
void AttachToPreferences();
static uint32_t sMemoryLimit;
static uint32_t sUseNewCache;
};
} // net
} // mozilla
#endif