1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/netwerk/cache/nsDiskCacheStreams.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,70 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + *
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +
1.11 +#ifndef _nsDiskCacheStreams_h_
1.12 +#define _nsDiskCacheStreams_h_
1.13 +
1.14 +#include "mozilla/MemoryReporting.h"
1.15 +#include "nsDiskCacheBinding.h"
1.16 +
1.17 +#include "nsCache.h"
1.18 +
1.19 +#include "nsIInputStream.h"
1.20 +#include "nsIOutputStream.h"
1.21 +
1.22 +#include "mozilla/Atomics.h"
1.23 +
1.24 +class nsDiskCacheInputStream;
1.25 +class nsDiskCacheDevice;
1.26 +
1.27 +class nsDiskCacheStreamIO : public nsIOutputStream {
1.28 +public:
1.29 + nsDiskCacheStreamIO(nsDiskCacheBinding * binding);
1.30 + virtual ~nsDiskCacheStreamIO();
1.31 +
1.32 + NS_DECL_THREADSAFE_ISUPPORTS
1.33 + NS_DECL_NSIOUTPUTSTREAM
1.34 +
1.35 + nsresult GetInputStream(uint32_t offset, nsIInputStream ** inputStream);
1.36 + nsresult GetOutputStream(uint32_t offset, nsIOutputStream ** outputStream);
1.37 +
1.38 + nsresult ClearBinding();
1.39 +
1.40 + void IncrementInputStreamCount() { mInStreamCount++; }
1.41 + void DecrementInputStreamCount()
1.42 + {
1.43 + mInStreamCount--;
1.44 + NS_ASSERTION(mInStreamCount >= 0, "mInStreamCount has gone negative");
1.45 + }
1.46 +
1.47 + size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf);
1.48 +
1.49 + // GCC 2.95.2 requires this to be defined, although we never call it.
1.50 + // and OS/2 requires that it not be private
1.51 + nsDiskCacheStreamIO() { NS_NOTREACHED("oops"); }
1.52 +
1.53 +private:
1.54 + nsresult OpenCacheFile(int flags, PRFileDesc ** fd);
1.55 + nsresult ReadCacheBlocks(uint32_t bufferSize);
1.56 + nsresult FlushBufferToFile();
1.57 + void UpdateFileSize();
1.58 + void DeleteBuffer();
1.59 + nsresult CloseOutputStream();
1.60 + nsresult SeekAndTruncate(uint32_t offset);
1.61 +
1.62 + nsDiskCacheBinding * mBinding; // not an owning reference
1.63 + nsDiskCacheDevice * mDevice;
1.64 + mozilla::Atomic<int32_t> mInStreamCount;
1.65 + PRFileDesc * mFD;
1.66 +
1.67 + uint32_t mStreamEnd; // current size of data
1.68 + uint32_t mBufSize; // current end of buffer
1.69 + char * mBuffer;
1.70 + bool mOutputStreamIsOpen;
1.71 +};
1.72 +
1.73 +#endif // _nsDiskCacheStreams_h_
