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| author | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-03-29 16:04:01 +0100 |
|---|---|---|
| committer | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-03-29 16:04:01 +0100 |
| commit | 88083f8c683c18f4de68a20c863a82a9da65db8f (patch) | |
| tree | 926656892d9d80260da02ea8ea71031b140c51df /other-licenses/7zstub/src/CPP/7zip/IStream.h | |
| parent | f999f544aad04069b03704d994a99352263f600b (diff) | |
| parent | 843e4ceffd6ce21a6e6db37419335eafdc543e18 (diff) | |
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Merge branch 'master' into Sync-weave
Diffstat (limited to 'other-licenses/7zstub/src/CPP/7zip/IStream.h')
| -rw-r--r-- | other-licenses/7zstub/src/CPP/7zip/IStream.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/7zip/IStream.h b/other-licenses/7zstub/src/CPP/7zip/IStream.h new file mode 100644 index 000000000..436e91987 --- /dev/null +++ b/other-licenses/7zstub/src/CPP/7zip/IStream.h @@ -0,0 +1,127 @@ +// IStream.h
+
+#ifndef __ISTREAM_H
+#define __ISTREAM_H
+
+#include "../Common/MyTypes.h"
+#include "../Common/MyWindows.h"
+
+#include "IDecl.h"
+
+#define STREAM_INTERFACE_SUB(i, base, x) DECL_INTERFACE_SUB(i, base, 3, x)
+#define STREAM_INTERFACE(i, x) STREAM_INTERFACE_SUB(i, IUnknown, x)
+
+STREAM_INTERFACE(ISequentialInStream, 0x01)
+{
+ STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize) PURE;
+
+ /*
+ The requirement for caller: (processedSize != NULL).
+ The callee can allow (processedSize == NULL) for compatibility reasons.
+
+ if (size == 0), this function returns S_OK and (*processedSize) is set to 0.
+
+ if (size != 0)
+ {
+ Partial read is allowed: (*processedSize <= avail_size && *processedSize <= size),
+ where (avail_size) is the size of remaining bytes in stream.
+ If (avail_size != 0), this function must read at least 1 byte: (*processedSize > 0).
+ You must call Read() in loop, if you need to read exact amount of data.
+ }
+
+ If seek pointer before Read() call was changed to position past the end of stream:
+ if (seek_pointer >= stream_size), this function returns S_OK and (*processedSize) is set to 0.
+
+ ERROR CASES:
+ If the function returns error code, then (*processedSize) is size of
+ data written to (data) buffer (it can be data before error or data with errors).
+ The recommended way for callee to work with reading errors:
+ 1) write part of data before error to (data) buffer and return S_OK.
+ 2) return error code for further calls of Read().
+ */
+};
+
+STREAM_INTERFACE(ISequentialOutStream, 0x02)
+{
+ STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize) PURE;
+
+ /*
+ The requirement for caller: (processedSize != NULL).
+ The callee can allow (processedSize == NULL) for compatibility reasons.
+
+ if (size != 0)
+ {
+ Partial write is allowed: (*processedSize <= size),
+ but this function must write at least 1 byte: (*processedSize > 0).
+ You must call Write() in loop, if you need to write exact amount of data.
+ }
+
+ ERROR CASES:
+ If the function returns error code, then (*processedSize) is size of
+ data written from (data) buffer.
+ */
+};
+
+#ifdef __HRESULT_FROM_WIN32
+#define HRESULT_WIN32_ERROR_NEGATIVE_SEEK __HRESULT_FROM_WIN32(ERROR_NEGATIVE_SEEK)
+#else
+#define HRESULT_WIN32_ERROR_NEGATIVE_SEEK HRESULT_FROM_WIN32(ERROR_NEGATIVE_SEEK)
+#endif
+
+/* Seek() Function
+ If you seek before the beginning of the stream, Seek() function returns error code:
+ Recommended error code is __HRESULT_FROM_WIN32(ERROR_NEGATIVE_SEEK).
+ or STG_E_INVALIDFUNCTION
+
+ It is allowed to seek past the end of the stream.
+
+
+ if Seek() returns error, then the value of *newPosition is undefined.
+*/
+
+STREAM_INTERFACE_SUB(IInStream, ISequentialInStream, 0x03)
+{
+ STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition) PURE;
+};
+
+STREAM_INTERFACE_SUB(IOutStream, ISequentialOutStream, 0x04)
+{
+ STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition) PURE;
+ STDMETHOD(SetSize)(UInt64 newSize) PURE;
+};
+
+STREAM_INTERFACE(IStreamGetSize, 0x06)
+{
+ STDMETHOD(GetSize)(UInt64 *size) PURE;
+};
+
+STREAM_INTERFACE(IOutStreamFinish, 0x07)
+{
+ STDMETHOD(OutStreamFinish)() PURE;
+};
+
+
+STREAM_INTERFACE(IStreamGetProps, 0x08)
+{
+ STDMETHOD(GetProps)(UInt64 *size, FILETIME *cTime, FILETIME *aTime, FILETIME *mTime, UInt32 *attrib) PURE;
+};
+
+struct CStreamFileProps
+{
+ UInt64 Size;
+ UInt64 VolID;
+ UInt64 FileID_Low;
+ UInt64 FileID_High;
+ UInt32 NumLinks;
+ UInt32 Attrib;
+ FILETIME CTime;
+ FILETIME ATime;
+ FILETIME MTime;
+};
+
+STREAM_INTERFACE(IStreamGetProps2, 0x09)
+{
+ STDMETHOD(GetProps2)(CStreamFileProps *props) PURE;
+};
+
+#endif
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