зеркало из https://github.com/mozilla/gecko-dev.git
55 строки
1.8 KiB
C++
55 строки
1.8 KiB
C++
//* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsCheckSummedOutputStream_h__
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#define nsCheckSummedOutputStream_h__
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#include "nsILocalFile.h"
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#include "nsIFile.h"
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#include "nsIOutputStream.h"
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#include "nsICryptoHash.h"
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#include "nsNetCID.h"
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#include "nsString.h"
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#include "../../../netwerk/base/src/nsFileStreams.h"
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#include "nsToolkitCompsCID.h"
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class nsCheckSummedOutputStream : public nsSafeFileOutputStream
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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// Size of MD5 hash in bytes
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static const uint32_t CHECKSUM_SIZE = 16;
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nsCheckSummedOutputStream() {}
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NS_IMETHOD Finish();
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NS_IMETHOD Write(const char *buf, uint32_t count, uint32_t *result);
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NS_IMETHOD Init(nsIFile* file, int32_t ioFlags, int32_t perm, int32_t behaviorFlags);
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protected:
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virtual ~nsCheckSummedOutputStream() { nsSafeFileOutputStream::Close(); }
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nsCOMPtr<nsICryptoHash> mHash;
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nsAutoCString mCheckSum;
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};
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// returns a file output stream which can be QI'ed to nsIFileOutputStream.
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inline nsresult
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NS_NewCheckSummedOutputStream(nsIOutputStream **result,
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nsIFile *file,
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int32_t ioFlags = -1,
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int32_t perm = -1,
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int32_t behaviorFlags = 0)
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{
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nsCOMPtr<nsIFileOutputStream> out = new nsCheckSummedOutputStream();
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nsresult rv = out->Init(file, ioFlags, perm, behaviorFlags);
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if (NS_SUCCEEDED(rv))
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NS_ADDREF(*result = out); // cannot use nsCOMPtr::swap
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return rv;
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}
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#endif
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