src/include/postmaster/pgarch.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * pgarch.h
   4  *        Exports from postmaster/pgarch.c.
   5  *
   6  * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * src/include/postmaster/pgarch.h
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13 #ifndef _PGARCH_H
  14 #define _PGARCH_H
  15
  16 /* ----------
  17  * Archiver control info.
  18  *
  19  * We expect that archivable files within pg_wal will have names between
  20  * MIN_XFN_CHARS and MAX_XFN_CHARS in length, consisting only of characters
  21  * appearing in VALID_XFN_CHARS.  The status files in archive_status have
  22  * corresponding names with ".ready" or ".done" appended.
  23  * ----------
  24  */
  25 #define MIN_XFN_CHARS   16
  26 #define MAX_XFN_CHARS   40
  27 #define VALID_XFN_CHARS "0123456789ABCDEF.history.backup.partial"
  28
  29 extern Size PgArchShmemSize(void);
  30 extern void PgArchShmemInit(void);
  31 extern bool PgArchCanRestart(void);
  32 extern void PgArchiverMain(char *startup_data, size_t startup_data_len) pg_attribute_noreturn();
  33 extern void PgArchWakeup(void);
  34 extern void PgArchForceDirScan(void);
  35
  36 #endif                                                  /* _PGARCH_H */