PostgreSQL Source Code: src/include/access/xlogdefs.h Source File (original) (raw)
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12#ifndef XLOG_DEFS_H
13#define XLOG_DEFS_H
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15#include <fcntl.h>
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28#define InvalidXLogRecPtr 0
29#define XLogRecPtrIsValid(r) ((r) != InvalidXLogRecPtr)
30#define XLogRecPtrIsInvalid(r) ((r) == InvalidXLogRecPtr)
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37#define FirstNormalUnloggedLSN ((XLogRecPtr) 1000)
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47#define LSN_FORMAT_ARGS(lsn) (AssertVariableIsOfTypeMacro((lsn), XLogRecPtr), (uint32) ((lsn) >> 32)), ((uint32) (lsn))
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78#if defined(PLATFORM_DEFAULT_WAL_SYNC_METHOD)
79#define DEFAULT_WAL_SYNC_METHOD PLATFORM_DEFAULT_WAL_SYNC_METHOD
80#elif defined(O_DSYNC) && (!defined(O_SYNC) || O_DSYNC != O_SYNC)
81#define DEFAULT_WAL_SYNC_METHOD WAL_SYNC_METHOD_OPEN_DSYNC
82#else
83#define DEFAULT_WAL_SYNC_METHOD WAL_SYNC_METHOD_FDATASYNC
84#endif
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86#endif