From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- netwerk/cache/nsDiskCacheStreams.h | 70 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 netwerk/cache/nsDiskCacheStreams.h (limited to 'netwerk/cache/nsDiskCacheStreams.h') diff --git a/netwerk/cache/nsDiskCacheStreams.h b/netwerk/cache/nsDiskCacheStreams.h new file mode 100644 index 000000000..247c16a6e --- /dev/null +++ b/netwerk/cache/nsDiskCacheStreams.h @@ -0,0 +1,70 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * 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 _nsDiskCacheStreams_h_ +#define _nsDiskCacheStreams_h_ + +#include "mozilla/MemoryReporting.h" +#include "nsDiskCacheBinding.h" + +#include "nsCache.h" + +#include "nsIInputStream.h" +#include "nsIOutputStream.h" + +#include "mozilla/Atomics.h" + +class nsDiskCacheDevice; + +class nsDiskCacheStreamIO : public nsIOutputStream { +public: + explicit nsDiskCacheStreamIO(nsDiskCacheBinding * binding); + + NS_DECL_THREADSAFE_ISUPPORTS + NS_DECL_NSIOUTPUTSTREAM + + nsresult GetInputStream(uint32_t offset, nsIInputStream ** inputStream); + nsresult GetOutputStream(uint32_t offset, nsIOutputStream ** outputStream); + + nsresult ClearBinding(); + + void IncrementInputStreamCount() { mInStreamCount++; } + void DecrementInputStreamCount() + { + mInStreamCount--; + NS_ASSERTION(mInStreamCount >= 0, "mInStreamCount has gone negative"); + } + + size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf); + + // GCC 2.95.2 requires this to be defined, although we never call it. + // and OS/2 requires that it not be private + nsDiskCacheStreamIO() { NS_NOTREACHED("oops"); } + +private: + virtual ~nsDiskCacheStreamIO(); + + nsresult OpenCacheFile(int flags, PRFileDesc ** fd); + nsresult ReadCacheBlocks(uint32_t bufferSize); + nsresult FlushBufferToFile(); + void UpdateFileSize(); + void DeleteBuffer(); + nsresult CloseOutputStream(); + nsresult SeekAndTruncate(uint32_t offset); + + nsDiskCacheBinding * mBinding; // not an owning reference + nsDiskCacheDevice * mDevice; + mozilla::Atomic mInStreamCount; + PRFileDesc * mFD; + + uint32_t mStreamEnd; // current size of data + uint32_t mBufSize; // current end of buffer + char * mBuffer; + bool mOutputStreamIsOpen; +}; + +#endif // _nsDiskCacheStreams_h_ -- cgit v1.2.3