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netwerk/cache2/CacheObserver.h@7e26c7da4463 (annotated)

netwerk/cache2/CacheObserver.h

Wed, 31 Dec 2014 06:55:50 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:55:50 +0100

changeset 2

7e26c7da4463

permissions

-rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

michael@0	1	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	2	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	3	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	4
michael@0	5	#ifndef CacheObserver__h__
michael@0	6	#define CacheObserver__h__
michael@0	7
michael@0	8	#include "nsIObserver.h"
michael@0	9	#include "nsIFile.h"
michael@0	10	#include "nsCOMPtr.h"
michael@0	11	#include "nsWeakReference.h"
michael@0	12	#include <algorithm>
michael@0	13
michael@0	14	namespace mozilla {
michael@0	15	namespace net {
michael@0	16
michael@0	17	class CacheObserver : public nsIObserver
michael@0	18	, public nsSupportsWeakReference
michael@0	19	{
michael@0	20	NS_DECL_THREADSAFE_ISUPPORTS
michael@0	21	NS_DECL_NSIOBSERVER
michael@0	22
michael@0	23	virtual ~CacheObserver() {}
michael@0	24
michael@0	25	static nsresult Init();
michael@0	26	static nsresult Shutdown();
michael@0	27	static CacheObserver* Self() { return sSelf; }
michael@0	28
michael@0	29	// Access to preferences
michael@0	30	static bool const UseNewCache();
michael@0	31	static bool const UseDiskCache()
michael@0	32	{ return sUseDiskCache; }
michael@0	33	static bool const UseMemoryCache()
michael@0	34	{ return sUseMemoryCache; }
michael@0	35	static uint32_t const MetadataMemoryLimit() // result in bytes.
michael@0	36	{ return sMetadataMemoryLimit << 10; }
michael@0	37	static uint32_t const MemoryCacheCapacity(); // result in bytes.
michael@0	38	static uint32_t const DiskCacheCapacity() // result in bytes.
michael@0	39	{ return sDiskCacheCapacity << 10; }
michael@0	40	static void SetDiskCacheCapacity(uint32_t); // parameter in bytes.
michael@0	41	static bool const SmartCacheSizeEnabled()
michael@0	42	{ return sSmartCacheSizeEnabled; }
michael@0	43	static uint32_t const MaxMemoryEntrySize() // result in bytes.
michael@0	44	{ return sMaxMemoryEntrySize << 10; }
michael@0	45	static uint32_t const MaxDiskEntrySize() // result in bytes.
michael@0	46	{ return sMaxDiskEntrySize << 10; }
michael@0	47	static uint32_t const CompressionLevel()
michael@0	48	{ return sCompressionLevel; }
michael@0	49	static uint32_t const HalfLifeSeconds()
michael@0	50	{ return sHalfLifeHours * 60 * 60; }
michael@0	51	static int32_t const HalfLifeExperiment()
michael@0	52	{ return sHalfLifeExperiment; }
michael@0	53	static bool const ClearCacheOnShutdown()
michael@0	54	{ return sSanitizeOnShutdown && sClearCacheOnShutdown; }
michael@0	55	static void ParentDirOverride(nsIFile ** aDir);
michael@0	56
michael@0	57	static bool const EntryIsTooBig(int64_t aSize, bool aUsingDisk);
michael@0	58
michael@0	59	private:
michael@0	60	static CacheObserver* sSelf;
michael@0	61
michael@0	62	void StoreDiskCacheCapacity();
michael@0	63	void AttachToPreferences();
michael@0	64	void SchduleAutoDelete();
michael@0	65
michael@0	66	static uint32_t sUseNewCache;
michael@0	67	static bool sUseMemoryCache;
michael@0	68	static bool sUseDiskCache;
michael@0	69	static uint32_t sMetadataMemoryLimit;
michael@0	70	static int32_t sMemoryCacheCapacity;
michael@0	71	static int32_t sAutoMemoryCacheCapacity;
michael@0	72	static uint32_t sDiskCacheCapacity;
michael@0	73	static bool sSmartCacheSizeEnabled;
michael@0	74	static uint32_t sMaxMemoryEntrySize;
michael@0	75	static uint32_t sMaxDiskEntrySize;
michael@0	76	static uint32_t sCompressionLevel;
michael@0	77	static uint32_t sHalfLifeHours;
michael@0	78	static int32_t sHalfLifeExperiment;
michael@0	79	static bool sSanitizeOnShutdown;
michael@0	80	static bool sClearCacheOnShutdown;
michael@0	81
michael@0	82	// Non static properties, accessible via sSelf
michael@0	83	nsCOMPtr<nsIFile> mCacheParentDirectoryOverride;
michael@0	84	};
michael@0	85
michael@0	86	} // net
michael@0	87	} // mozilla
michael@0	88
michael@0	89	#endif