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Per previous discussions, here are two functions to send INT and TERM

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(cancel and terminate) signals to other backends.   They permit only INT
and TERM, and permits sending only to postgresql backends.

Magnus Hagander
This commit is contained in:
Bruce Momjian
2004-06-02 21:29:29 +00:00
parent de2c66539e
commit e8d9d68ca4
6 changed files with 95 additions and 7 deletions
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3
src/include/storage/sinval.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/storage/sinval.h,v 1.34 2004/05/23 03:50:45 tgl Exp $
* $PostgreSQL: pgsql/src/include/storage/sinval.h,v 1.35 2004/06/02 21:29:29 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -97,6 +97,7 @@ extern void ReceiveSharedInvalidMessages(
extern bool DatabaseHasActiveBackends(Oid databaseId, bool ignoreMyself);
extern bool TransactionIdIsInProgress(TransactionId xid);
extern bool IsBackendPid(int pid);
extern TransactionId GetOldestXmin(bool allDbs);
extern int CountActiveBackends(void);
extern int CountEmptyBackendSlots(void);