src/include/storage/fileset.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * fileset.h
   4  *        Management of named temporary files.
   5  *
   6  * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * src/include/storage/fileset.h
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13
  14 #ifndef FILESET_H
  15 #define FILESET_H
  16
  17 #include "storage/fd.h"
  18
  19 /*
  20  * A set of temporary files.
  21  */
  22 typedef struct FileSet
  23 {
  24         pid_t           creator_pid;    /* PID of the creating process */
  25         uint32          number;                 /* per-PID identifier */
  26         int                     ntablespaces;   /* number of tablespaces to use */
  27         Oid                     tablespaces[8]; /* OIDs of tablespaces to use. Assumes that
  28                                                                  * it's rare that there more than temp
  29                                                                  * tablespaces. */
  30 } FileSet;
  31
  32 extern void FileSetInit(FileSet *fileset);
  33 extern File FileSetCreate(FileSet *fileset, const char *name);
  34 extern File FileSetOpen(FileSet *fileset, const char *name,
  35                                                 int mode);
  36 extern bool FileSetDelete(FileSet *fileset, const char *name,
  37                                                   bool error_on_failure);
  38 extern void FileSetDeleteAll(FileSet *fileset);
  39
  40 #endif