blob: f86c06656ef6da3b0ecadb01496999c6dd202a75 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
/*-------------------------------------------------------------------------
*
* pmsignal.h
* routines for signaling the postmaster from its child processes
*
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pmsignal.h,v 1.1 2001/11/04 19:55:31 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PMSIGNAL_H
#define PMSIGNAL_H
/*
* Reasons for signaling the postmaster. We can cope with simultaneous
* signals for different reasons. If the same reason is signaled multiple
* times in quick succession, however, the postmaster is likely to observe
* only one notification of it. This is okay for the present uses.
*/
typedef enum
{
PMSIGNAL_DO_CHECKPOINT, /* request to start a checkpoint */
PMSIGNAL_PASSWORD_CHANGE, /* pg_pwd file has changed */
PMSIGNAL_WAKEN_CHILDREN, /* send a NOTIFY signal to all backends */
NUM_PMSIGNALS /* Must be last value of enum! */
} PMSignalReason;
/*
* prototypes for functions in pmsignal.c
*/
extern void PMSignalInit(void);
extern void SendPostmasterSignal(PMSignalReason reason);
extern bool CheckPostmasterSignal(PMSignalReason reason);
#endif /* PMSIGNAL_H */
|
