/usr/include/postgres-xc/server/utils/logtape.h is in postgres-xc-server-dev 1.1-2ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | /*-------------------------------------------------------------------------
*
* logtape.h
* Management of "logical tapes" within temporary files.
*
* See logtape.c for explanations.
*
* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/utils/logtape.h
*
*-------------------------------------------------------------------------
*/
#ifndef LOGTAPE_H
#define LOGTAPE_H
/* LogicalTapeSet is an opaque type whose details are not known outside logtape.c. */
typedef struct LogicalTapeSet LogicalTapeSet;
/*
* prototypes for functions in logtape.c
*/
extern LogicalTapeSet *LogicalTapeSetCreate(int ntapes);
extern void LogicalTapeSetClose(LogicalTapeSet *lts);
extern void LogicalTapeSetForgetFreeSpace(LogicalTapeSet *lts);
extern size_t LogicalTapeRead(LogicalTapeSet *lts, int tapenum,
void *ptr, size_t size);
extern void LogicalTapeWrite(LogicalTapeSet *lts, int tapenum,
void *ptr, size_t size);
extern void LogicalTapeRewind(LogicalTapeSet *lts, int tapenum, bool forWrite);
extern void LogicalTapeFreeze(LogicalTapeSet *lts, int tapenum);
extern bool LogicalTapeBackspace(LogicalTapeSet *lts, int tapenum,
size_t size);
extern bool LogicalTapeSeek(LogicalTapeSet *lts, int tapenum,
long blocknum, int offset);
extern void LogicalTapeTell(LogicalTapeSet *lts, int tapenum,
long *blocknum, int *offset);
extern long LogicalTapeSetBlocks(LogicalTapeSet *lts);
#endif /* LOGTAPE_H */
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