зеркало из https://github.com/mozilla/gecko-dev.git
122 строки
4.0 KiB
C++
122 строки
4.0 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 "nsIFile.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsWeakReference.h"
|
|
#include <algorithm>
|
|
|
|
namespace mozilla {
|
|
namespace net {
|
|
|
|
class CacheObserver : public nsIObserver
|
|
, public nsSupportsWeakReference
|
|
{
|
|
virtual ~CacheObserver() {}
|
|
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
NS_DECL_NSIOBSERVER
|
|
|
|
static nsresult Init();
|
|
static nsresult Shutdown();
|
|
static CacheObserver* Self() { return sSelf; }
|
|
|
|
// Access to preferences
|
|
static bool UseNewCache();
|
|
static bool UseDiskCache()
|
|
{ return sUseDiskCache; }
|
|
static bool UseMemoryCache()
|
|
{ return sUseMemoryCache; }
|
|
static uint32_t MetadataMemoryLimit() // result in bytes.
|
|
{ return sMetadataMemoryLimit << 10; }
|
|
static uint32_t MemoryCacheCapacity(); // result in bytes.
|
|
static uint32_t DiskCacheCapacity() // result in bytes.
|
|
{ return sDiskCacheCapacity << 10; }
|
|
static void SetDiskCacheCapacity(uint32_t); // parameter in bytes.
|
|
static uint32_t DiskFreeSpaceSoftLimit() // result in bytes.
|
|
{ return sDiskFreeSpaceSoftLimit << 10; }
|
|
static uint32_t DiskFreeSpaceHardLimit() // result in bytes.
|
|
{ return sDiskFreeSpaceHardLimit << 10; }
|
|
static bool SmartCacheSizeEnabled()
|
|
{ return sSmartCacheSizeEnabled; }
|
|
static uint32_t PreloadChunkCount()
|
|
{ return sPreloadChunkCount; }
|
|
static uint32_t MaxMemoryEntrySize() // result in bytes.
|
|
{ return sMaxMemoryEntrySize << 10; }
|
|
static uint32_t MaxDiskEntrySize() // result in bytes.
|
|
{ return sMaxDiskEntrySize << 10; }
|
|
static uint32_t MaxDiskChunksMemoryUsage(bool aPriority) // result in bytes.
|
|
{ return aPriority ? sMaxDiskPriorityChunksMemoryUsage << 10
|
|
: sMaxDiskChunksMemoryUsage << 10; }
|
|
static uint32_t CompressionLevel()
|
|
{ return sCompressionLevel; }
|
|
static uint32_t HalfLifeSeconds()
|
|
{ return sHalfLifeHours * 60.0F * 60.0F; }
|
|
static int32_t HalfLifeExperiment()
|
|
{ return sHalfLifeExperiment; }
|
|
static bool ClearCacheOnShutdown()
|
|
{ return sSanitizeOnShutdown && sClearCacheOnShutdown; }
|
|
static bool CacheFSReported()
|
|
{ return sCacheFSReported; }
|
|
static void SetCacheFSReported();
|
|
static bool HashStatsReported()
|
|
{ return sHashStatsReported; }
|
|
static void SetHashStatsReported();
|
|
static void ParentDirOverride(nsIFile ** aDir);
|
|
|
|
static bool EntryIsTooBig(int64_t aSize, bool aUsingDisk);
|
|
|
|
static uint32_t MaxShutdownIOLag()
|
|
{ return sMaxShutdownIOLag; }
|
|
static bool IsPastShutdownIOLag();
|
|
|
|
static bool ShuttingDown()
|
|
{ return sShutdownDemandedTime != PR_INTERVAL_NO_TIMEOUT; }
|
|
|
|
private:
|
|
static CacheObserver* sSelf;
|
|
|
|
void StoreDiskCacheCapacity();
|
|
void StoreCacheFSReported();
|
|
void StoreHashStatsReported();
|
|
void AttachToPreferences();
|
|
|
|
static uint32_t sUseNewCache;
|
|
static bool sUseMemoryCache;
|
|
static bool sUseDiskCache;
|
|
static uint32_t sMetadataMemoryLimit;
|
|
static int32_t sMemoryCacheCapacity;
|
|
static int32_t sAutoMemoryCacheCapacity;
|
|
static Atomic<uint32_t, Relaxed> sDiskCacheCapacity;
|
|
static uint32_t sDiskFreeSpaceSoftLimit;
|
|
static uint32_t sDiskFreeSpaceHardLimit;
|
|
static bool sSmartCacheSizeEnabled;
|
|
static uint32_t sPreloadChunkCount;
|
|
static int32_t sMaxMemoryEntrySize;
|
|
static int32_t sMaxDiskEntrySize;
|
|
static uint32_t sMaxDiskChunksMemoryUsage;
|
|
static uint32_t sMaxDiskPriorityChunksMemoryUsage;
|
|
static uint32_t sCompressionLevel;
|
|
static float sHalfLifeHours;
|
|
static int32_t sHalfLifeExperiment;
|
|
static bool sSanitizeOnShutdown;
|
|
static bool sClearCacheOnShutdown;
|
|
static bool sCacheFSReported;
|
|
static bool sHashStatsReported;
|
|
static Atomic<uint32_t, Relaxed> sMaxShutdownIOLag;
|
|
static Atomic<PRIntervalTime> sShutdownDemandedTime;
|
|
|
|
// Non static properties, accessible via sSelf
|
|
nsCOMPtr<nsIFile> mCacheParentDirectoryOverride;
|
|
};
|
|
|
|
} // namespace net
|
|
} // namespace mozilla
|
|
|
|
#endif
|