14e2277962
while others dislike them being extra commits, let's clean them up once and for all for the existing code. If it's ugly, let it only be ugly once :-) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
// IStream.h
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#ifndef __ISTREAM_H
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#define __ISTREAM_H
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#include "../Common/MyUnknown.h"
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#include "../Common/Types.h"
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// "23170F69-40C1-278A-0000-000300xx0000"
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#define STREAM_INTERFACE_SUB(i, b, x) \
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DEFINE_GUID(IID_ ## i, \
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0x23170F69, 0x40C1, 0x278A, 0x00, 0x00, 0x00, 0x03, 0x00, x, 0x00, 0x00); \
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struct i: public b
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#define STREAM_INTERFACE(i, x) STREAM_INTERFACE_SUB(i, IUnknown, x)
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STREAM_INTERFACE(ISequentialInStream, 0x01)
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{
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STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize) PURE;
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/*
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Out: if size != 0, return_value = S_OK and (*processedSize == 0),
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then there are no more bytes in stream.
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if (size > 0) && there are bytes in stream,
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this function must read at least 1 byte.
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This function is allowed to read less than number of remaining bytes in stream.
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You must call Read function in loop, if you need exact amount of data
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*/
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};
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STREAM_INTERFACE(ISequentialOutStream, 0x02)
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{
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STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize) PURE;
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/*
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if (size > 0) this function must write at least 1 byte.
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This function is allowed to write less than "size".
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You must call Write function in loop, if you need to write exact amount of data
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*/
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};
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STREAM_INTERFACE_SUB(IInStream, ISequentialInStream, 0x03)
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{
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STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition) PURE;
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};
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STREAM_INTERFACE_SUB(IOutStream, ISequentialOutStream, 0x04)
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{
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STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition) PURE;
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STDMETHOD(SetSize)(Int64 newSize) PURE;
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};
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STREAM_INTERFACE(IStreamGetSize, 0x06)
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{
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STDMETHOD(GetSize)(UInt64 *size) PURE;
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};
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STREAM_INTERFACE(IOutStreamFlush, 0x07)
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{
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STDMETHOD(Flush)() PURE;
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};
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#endif
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