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65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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 nsIByteBuffer_h___
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#define nsIByteBuffer_h___
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#include "nscore.h"
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#include "nsISupports.h"
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class nsIInputStream;
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#define NS_IBYTE_BUFFER_IID \
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{ 0xe4a6e4b0, 0x93b4, 0x11d1, \
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{0x89, 0x5b, 0x00, 0x60, 0x08, 0x91, 0x1b, 0x81} }
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#define NS_IBYTEBUFFER_IID \
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{ 0xe4a6e4b0, 0x93b4, 0x11d1, \
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{0x89, 0x5b, 0x00, 0x60, 0x08, 0x91, 0x1b, 0x81} }
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#define NS_BYTEBUFFER_CONTRACTID "@mozilla.org/byte-buffer;1"
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/** Interface to a buffer that holds bytes */
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class nsIByteBuffer : public nsISupports {
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_IBYTEBUFFER_IID)
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NS_IMETHOD Init(uint32_t aBufferSize) = 0;
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/** @return length of buffer, i.e. how many bytes are currently in it. */
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NS_IMETHOD_(uint32_t) GetLength(void) const = 0;
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/** @return number of bytes allocated in the buffer */
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NS_IMETHOD_(uint32_t) GetBufferSize(void) const = 0;
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/** @return the buffer */
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NS_IMETHOD_(char*) GetBuffer(void) const = 0;
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/** Grow buffer to aNewSize bytes. */
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NS_IMETHOD_(bool) Grow(uint32_t aNewSize) = 0;
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/** Fill the buffer with data from aStream. Don't grow the buffer, only
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* read until length of buffer equals buffer size. */
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NS_IMETHOD_(int32_t) Fill(nsresult* aErrorCode, nsIInputStream* aStream,
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uint32_t aKeep) = 0;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsIByteBuffer, NS_IBYTEBUFFER_IID)
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#define NS_BYTEBUFFER_CID \
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{ /* a49d5280-0d6b-11d3-9331-00104ba0fd40 */ \
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0xa49d5280, \
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0x0d6b, \
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0x11d3, \
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{0x93, 0x31, 0x00, 0x10, 0x4b, 0xa0, 0xfd, 0x40} \
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}
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/** Create a new byte buffer using the given buffer size. */
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extern nsresult
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NS_NewByteBuffer(nsIByteBuffer** aInstancePtrResult,
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nsISupports* aOuter,
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uint32_t aBufferSize = 0);
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#endif /* nsIByteBuffer_h___ */
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