mirror of https://github.com/citusdata/citus.git
82 lines
1.6 KiB
C
82 lines
1.6 KiB
C
/*-------------------------------------------------------------------------
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*
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* version_compat.h
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* Compatibility macros for writing code agnostic to PostgreSQL versions
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*
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* Copyright (c) Citus Data, Inc.
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef VERSION_COMPAT_H
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#define VERSION_COMPAT_H
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#include "postgres.h"
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#include "access/sdir.h"
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#include "access/heapam.h"
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#include "commands/explain.h"
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#include "catalog/namespace.h"
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#include "distributed/citus_ruleutils.h"
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#include "distributed/citus_safe_lib.h"
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#include "executor/tuptable.h"
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#include "nodes/parsenodes.h"
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#include "parser/parse_func.h"
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#include "optimizer/optimizer.h"
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#if (PG_VERSION_NUM >= PG_VERSION_13)
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#include "tcop/tcopprot.h"
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#endif
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#include "pg_version_compat.h"
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#if PG_VERSION_NUM >= PG_VERSION_12
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typedef struct
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{
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File fd;
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off_t offset;
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} FileCompat;
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static inline int
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FileWriteCompat(FileCompat *file, char *buffer, int amount, uint32 wait_event_info)
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{
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int count = FileWrite(file->fd, buffer, amount, file->offset, wait_event_info);
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if (count > 0)
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{
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file->offset += count;
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}
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return count;
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}
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static inline int
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FileReadCompat(FileCompat *file, char *buffer, int amount, uint32 wait_event_info)
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{
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int count = FileRead(file->fd, buffer, amount, file->offset, wait_event_info);
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if (count > 0)
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{
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file->offset += count;
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}
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return count;
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}
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static inline FileCompat
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FileCompatFromFileStart(File fileDesc)
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{
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FileCompat fc;
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/* ensure uninitialized padding doesn't escape the function */
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memset_struct_0(fc);
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fc.fd = fileDesc;
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fc.offset = 0;
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return fc;
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}
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#endif /* PG12 */
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#endif /* VERSION_COMPAT_H */
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