mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-11 02:56:06 +00:00
247 lines
7.6 KiB
C++
247 lines
7.6 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 CacheFile__h__
|
|
#define CacheFile__h__
|
|
|
|
#include "CacheFileChunk.h"
|
|
#include "CacheFileIOManager.h"
|
|
#include "CacheFileMetadata.h"
|
|
#include "nsRefPtrHashtable.h"
|
|
#include "nsClassHashtable.h"
|
|
#include "mozilla/Mutex.h"
|
|
|
|
class nsIInputStream;
|
|
class nsIOutputStream;
|
|
class nsICacheEntryMetaDataVisitor;
|
|
|
|
namespace mozilla {
|
|
namespace net {
|
|
|
|
class CacheFileInputStream;
|
|
class CacheFileOutputStream;
|
|
class CacheOutputCloseListener;
|
|
class MetadataWriteTimer;
|
|
|
|
#define CACHEFILELISTENER_IID \
|
|
{ /* 95e7f284-84ba-48f9-b1fc-3a7336b4c33c */ \
|
|
0x95e7f284, \
|
|
0x84ba, \
|
|
0x48f9, \
|
|
{0xb1, 0xfc, 0x3a, 0x73, 0x36, 0xb4, 0xc3, 0x3c} \
|
|
}
|
|
|
|
class CacheFileListener : public nsISupports
|
|
{
|
|
public:
|
|
NS_DECLARE_STATIC_IID_ACCESSOR(CACHEFILELISTENER_IID)
|
|
|
|
NS_IMETHOD OnFileReady(nsresult aResult, bool aIsNew) = 0;
|
|
NS_IMETHOD OnFileDoomed(nsresult aResult) = 0;
|
|
};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(CacheFileListener, CACHEFILELISTENER_IID)
|
|
|
|
|
|
class CacheFile final : public CacheFileChunkListener
|
|
, public CacheFileIOListener
|
|
, public CacheFileMetadataListener
|
|
{
|
|
public:
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
|
|
CacheFile();
|
|
|
|
nsresult Init(const nsACString &aKey,
|
|
bool aCreateNew,
|
|
bool aMemoryOnly,
|
|
bool aSkipSizeCheck,
|
|
bool aPriority,
|
|
bool aPinned,
|
|
CacheFileListener *aCallback);
|
|
|
|
NS_IMETHOD OnChunkRead(nsresult aResult, CacheFileChunk *aChunk) override;
|
|
NS_IMETHOD OnChunkWritten(nsresult aResult, CacheFileChunk *aChunk) override;
|
|
NS_IMETHOD OnChunkAvailable(nsresult aResult, uint32_t aChunkIdx,
|
|
CacheFileChunk *aChunk) override;
|
|
NS_IMETHOD OnChunkUpdated(CacheFileChunk *aChunk) override;
|
|
|
|
NS_IMETHOD OnFileOpened(CacheFileHandle *aHandle, nsresult aResult) override;
|
|
NS_IMETHOD OnDataWritten(CacheFileHandle *aHandle, const char *aBuf,
|
|
nsresult aResult) override;
|
|
NS_IMETHOD OnDataRead(CacheFileHandle *aHandle, char *aBuf, nsresult aResult) override;
|
|
NS_IMETHOD OnFileDoomed(CacheFileHandle *aHandle, nsresult aResult) override;
|
|
NS_IMETHOD OnEOFSet(CacheFileHandle *aHandle, nsresult aResult) override;
|
|
NS_IMETHOD OnFileRenamed(CacheFileHandle *aHandle, nsresult aResult) override;
|
|
|
|
NS_IMETHOD OnMetadataRead(nsresult aResult) override;
|
|
NS_IMETHOD OnMetadataWritten(nsresult aResult) override;
|
|
|
|
NS_IMETHOD OpenInputStream(nsIInputStream **_retval);
|
|
NS_IMETHOD OpenOutputStream(CacheOutputCloseListener *aCloseListener, nsIOutputStream **_retval);
|
|
NS_IMETHOD SetMemoryOnly();
|
|
NS_IMETHOD Doom(CacheFileListener *aCallback);
|
|
|
|
nsresult ThrowMemoryCachedData();
|
|
|
|
// metadata forwarders
|
|
nsresult GetElement(const char *aKey, char **_retval);
|
|
nsresult SetElement(const char *aKey, const char *aValue);
|
|
nsresult VisitMetaData(nsICacheEntryMetaDataVisitor *aVisitor);
|
|
nsresult ElementsSize(uint32_t *_retval);
|
|
nsresult SetExpirationTime(uint32_t aExpirationTime);
|
|
nsresult GetExpirationTime(uint32_t *_retval);
|
|
nsresult SetFrecency(uint32_t aFrecency);
|
|
nsresult GetFrecency(uint32_t *_retval);
|
|
nsresult GetLastModified(uint32_t *_retval);
|
|
nsresult GetLastFetched(uint32_t *_retval);
|
|
nsresult GetFetchCount(uint32_t *_retval);
|
|
// Called by upper layers to indicated the entry has been fetched,
|
|
// i.e. delivered to the consumer.
|
|
nsresult OnFetched();
|
|
|
|
bool DataSize(int64_t* aSize);
|
|
void Key(nsACString& aKey) { aKey = mKey; }
|
|
bool IsDoomed();
|
|
bool IsPinned() const { return mPinned; }
|
|
bool IsWriteInProgress();
|
|
|
|
// Memory reporting
|
|
size_t SizeOfExcludingThis(mozilla::MallocSizeOf mallocSizeOf) const;
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf) const;
|
|
|
|
private:
|
|
friend class CacheFileIOManager;
|
|
friend class CacheFileChunk;
|
|
friend class CacheFileInputStream;
|
|
friend class CacheFileOutputStream;
|
|
friend class CacheFileAutoLock;
|
|
friend class MetadataWriteTimer;
|
|
|
|
virtual ~CacheFile();
|
|
|
|
void Lock();
|
|
void Unlock();
|
|
void AssertOwnsLock() const;
|
|
void ReleaseOutsideLock(RefPtr<nsISupports> aObject);
|
|
|
|
enum ECallerType {
|
|
READER = 0,
|
|
WRITER = 1,
|
|
PRELOADER = 2
|
|
};
|
|
|
|
nsresult DoomLocked(CacheFileListener *aCallback);
|
|
|
|
nsresult GetChunk(uint32_t aIndex, ECallerType aCaller,
|
|
CacheFileChunkListener *aCallback,
|
|
CacheFileChunk **_retval);
|
|
nsresult GetChunkLocked(uint32_t aIndex, ECallerType aCaller,
|
|
CacheFileChunkListener *aCallback,
|
|
CacheFileChunk **_retval);
|
|
|
|
void PreloadChunks(uint32_t aIndex);
|
|
bool ShouldCacheChunk(uint32_t aIndex);
|
|
bool MustKeepCachedChunk(uint32_t aIndex);
|
|
|
|
nsresult DeactivateChunk(CacheFileChunk *aChunk);
|
|
void RemoveChunkInternal(CacheFileChunk *aChunk, bool aCacheChunk);
|
|
|
|
int64_t BytesFromChunk(uint32_t aIndex);
|
|
|
|
nsresult RemoveInput(CacheFileInputStream *aInput, nsresult aStatus);
|
|
nsresult RemoveOutput(CacheFileOutputStream *aOutput, nsresult aStatus);
|
|
nsresult NotifyChunkListener(CacheFileChunkListener *aCallback,
|
|
nsIEventTarget *aTarget,
|
|
nsresult aResult,
|
|
uint32_t aChunkIdx,
|
|
CacheFileChunk *aChunk);
|
|
nsresult QueueChunkListener(uint32_t aIndex,
|
|
CacheFileChunkListener *aCallback);
|
|
nsresult NotifyChunkListeners(uint32_t aIndex, nsresult aResult,
|
|
CacheFileChunk *aChunk);
|
|
bool HaveChunkListeners(uint32_t aIndex);
|
|
void NotifyListenersAboutOutputRemoval();
|
|
|
|
bool IsDirty();
|
|
void WriteMetadataIfNeeded();
|
|
void WriteMetadataIfNeededLocked(bool aFireAndForget = false);
|
|
void PostWriteTimer();
|
|
|
|
void CleanUpCachedChunks();
|
|
|
|
nsresult PadChunkWithZeroes(uint32_t aChunkIdx);
|
|
|
|
void SetError(nsresult aStatus);
|
|
|
|
nsresult InitIndexEntry();
|
|
|
|
mozilla::Mutex mLock;
|
|
bool mOpeningFile;
|
|
bool mReady;
|
|
bool mMemoryOnly;
|
|
bool mSkipSizeCheck;
|
|
bool mOpenAsMemoryOnly;
|
|
bool mPinned;
|
|
bool mPriority;
|
|
bool mDataAccessed;
|
|
bool mDataIsDirty;
|
|
bool mWritingMetadata;
|
|
bool mPreloadWithoutInputStreams;
|
|
uint32_t mPreloadChunkCount;
|
|
nsresult mStatus;
|
|
int64_t mDataSize;
|
|
nsCString mKey;
|
|
|
|
RefPtr<CacheFileHandle> mHandle;
|
|
RefPtr<CacheFileMetadata> mMetadata;
|
|
nsCOMPtr<CacheFileListener> mListener;
|
|
nsCOMPtr<CacheFileIOListener> mDoomAfterOpenListener;
|
|
|
|
nsRefPtrHashtable<nsUint32HashKey, CacheFileChunk> mChunks;
|
|
nsClassHashtable<nsUint32HashKey, ChunkListeners> mChunkListeners;
|
|
nsRefPtrHashtable<nsUint32HashKey, CacheFileChunk> mCachedChunks;
|
|
|
|
nsTArray<CacheFileInputStream*> mInputs;
|
|
CacheFileOutputStream *mOutput;
|
|
|
|
nsTArray<RefPtr<nsISupports>> mObjsToRelease;
|
|
};
|
|
|
|
class CacheFileAutoLock {
|
|
public:
|
|
explicit CacheFileAutoLock(CacheFile *aFile)
|
|
: mFile(aFile)
|
|
, mLocked(true)
|
|
{
|
|
mFile->Lock();
|
|
}
|
|
~CacheFileAutoLock()
|
|
{
|
|
if (mLocked)
|
|
mFile->Unlock();
|
|
}
|
|
void Lock()
|
|
{
|
|
MOZ_ASSERT(!mLocked);
|
|
mFile->Lock();
|
|
mLocked = true;
|
|
}
|
|
void Unlock()
|
|
{
|
|
MOZ_ASSERT(mLocked);
|
|
mFile->Unlock();
|
|
mLocked = false;
|
|
}
|
|
|
|
private:
|
|
RefPtr<CacheFile> mFile;
|
|
bool mLocked;
|
|
};
|
|
|
|
} // namespace net
|
|
} // namespace mozilla
|
|
|
|
#endif
|