greenplumn pgarch 源码
greenplumn pgarch 代码
文件路径：/src/include/postmaster/pgarch.h
/*-------------------------------------------------------------------------
*
* pgarch.h
* Exports from postmaster/pgarch.c.
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/postmaster/pgarch.h
*
*-------------------------------------------------------------------------
*/
#ifndef _PGARCH_H
#define _PGARCH_H
/* ----------
* Archiver control info.
*
* We expect that archivable files within pg_wal will have names between
* MIN_XFN_CHARS and MAX_XFN_CHARS in length, consisting only of characters
* appearing in VALID_XFN_CHARS. The status files in archive_status have
* corresponding names with ".ready" or ".done" appended.
* ----------
*/
#define MIN_XFN_CHARS 16
#define MAX_XFN_CHARS 40
#define VALID_XFN_CHARS "0123456789ABCDEF.history.backup.partial"
/* ----------
* Functions called from postmaster
* ----------
*/
extern int pgarch_start(void);
#ifdef EXEC_BACKEND
extern void PgArchiverMain(int argc, char *argv[]) pg_attribute_noreturn();
#endif
#endif /* _PGARCH_H */
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