diff options
Diffstat (limited to '')
| -rw-r--r-- | 7zStream.c | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/7zStream.c b/7zStream.c deleted file mode 100644 index 12aa3a3..0000000 --- a/7zStream.c +++ /dev/null @@ -1,164 +0,0 @@ -/* 7zStream.c -- 7z Stream functions
-2008-11-23 : Igor Pavlov : Public domain */
-
-#define _FILE_OFFSET_BITS 64
-
-#include <string.h>
-
-#include "Types.h"
-
-SRes SeqInStream_Read2(ISeqInStream *stream, void *buf, size_t size, SRes errorType)
-{
- while (size != 0)
- {
- size_t processed = size;
- RINOK(stream->Read(stream, buf, &processed));
- if (processed == 0)
- return errorType;
- buf = (void *)((Byte *)buf + processed);
- size -= processed;
- }
- return SZ_OK;
-}
-
-SRes SeqInStream_Read(ISeqInStream *stream, void *buf, size_t size)
-{
- return SeqInStream_Read2(stream, buf, size, SZ_ERROR_INPUT_EOF);
-}
-
-SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset)
-{
- Int64 t = offset;
- return stream->Seek(stream, &t, SZ_SEEK_SET);
-}
-
-SRes LookInStream_LookRead(ILookInStream *stream, void *buf, size_t *size)
-{
- void *lookBuf;
- if (*size == 0)
- return SZ_OK;
- RINOK(stream->Look(stream, &lookBuf, size));
- memcpy(buf, lookBuf, *size);
- return stream->Skip(stream, *size);
-}
-
-SRes LookInStream_Read2(ILookInStream *stream, void *buf, size_t size, SRes errorType)
-{
- while (size != 0)
- {
- size_t processed = size;
- RINOK(stream->Read(stream, buf, &processed));
- if (processed == 0)
- return errorType;
- buf = (void *)((Byte *)buf + processed);
- size -= processed;
- }
- return SZ_OK;
-}
-
-SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size)
-{
- return LookInStream_Read2(stream, buf, size, SZ_ERROR_INPUT_EOF);
-}
-
-static SRes LookToRead_Look_Lookahead(void *pp, void **buf, size_t *size)
-{
- SRes res = SZ_OK;
- CLookToRead *p = (CLookToRead *)pp;
- size_t size2 = p->size - p->pos;
- if (size2 == 0 && *size > 0)
- {
- p->pos = 0;
- size2 = LookToRead_BUF_SIZE;
- res = p->realStream->Read(p->realStream, p->buf, &size2);
- p->size = size2;
- }
- if (size2 < *size)
- *size = size2;
- *buf = p->buf + p->pos;
- return res;
-}
-
-static SRes LookToRead_Look_Exact(void *pp, void **buf, size_t *size)
-{
- SRes res = SZ_OK;
- CLookToRead *p = (CLookToRead *)pp;
- size_t size2 = p->size - p->pos;
- if (size2 == 0 && *size > 0)
- {
- p->pos = 0;
- if (*size > LookToRead_BUF_SIZE)
- *size = LookToRead_BUF_SIZE;
- res = p->realStream->Read(p->realStream, p->buf, size);
- size2 = p->size = *size;
- }
- if (size2 < *size)
- *size = size2;
- *buf = p->buf + p->pos;
- return res;
-}
-
-static SRes LookToRead_Skip(void *pp, size_t offset)
-{
- CLookToRead *p = (CLookToRead *)pp;
- p->pos += offset;
- return SZ_OK;
-}
-
-static SRes LookToRead_Read(void *pp, void *buf, size_t *size)
-{
- CLookToRead *p = (CLookToRead *)pp;
- size_t rem = p->size - p->pos;
- if (rem == 0)
- return p->realStream->Read(p->realStream, buf, size);
- if (rem > *size)
- rem = *size;
- memcpy(buf, p->buf + p->pos, rem);
- p->pos += rem;
- *size = rem;
- return SZ_OK;
-}
-
-static SRes LookToRead_Seek(void *pp, Int64 *pos, ESzSeek origin)
-{
- CLookToRead *p = (CLookToRead *)pp;
- p->pos = p->size = 0;
- return p->realStream->Seek(p->realStream, pos, origin);
-}
-
-void LookToRead_CreateVTable(CLookToRead *p, int lookahead)
-{
- p->s.Look = lookahead ?
- LookToRead_Look_Lookahead :
- LookToRead_Look_Exact;
- p->s.Skip = LookToRead_Skip;
- p->s.Read = LookToRead_Read;
- p->s.Seek = LookToRead_Seek;
-}
-
-void LookToRead_Init(CLookToRead *p)
-{
- p->pos = p->size = 0;
-}
-
-static SRes SecToLook_Read(void *pp, void *buf, size_t *size)
-{
- CSecToLook *p = (CSecToLook *)pp;
- return LookInStream_LookRead(p->realStream, buf, size);
-}
-
-void SecToLook_CreateVTable(CSecToLook *p)
-{
- p->s.Read = SecToLook_Read;
-}
-
-static SRes SecToRead_Read(void *pp, void *buf, size_t *size)
-{
- CSecToRead *p = (CSecToRead *)pp;
- return p->realStream->Read(p->realStream, buf, size);
-}
-
-void SecToRead_CreateVTable(CSecToRead *p)
-{
- p->s.Read = SecToRead_Read;
-}
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