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Restructure backend SIGINT/SIGTERM handling so that 'die' interrupts

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are treated more like 'cancel' interrupts: the signal handler sets a
flag that is examined at well-defined spots, rather than trying to cope
with an interrupt that might happen anywhere.  See pghackers discussion
of 1/12/01.
This commit is contained in:
Tom Lane
2001-01-14 05:08:17 +00:00
parent 027f144e39
commit 36839c1927
24 changed files with 614 additions and 479 deletions
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8
src/backend/executor/execProcnode.c
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@ -12,7 +12,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execProcnode.c,v 1.22 2000/10/26 21:35:15 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execProcnode.c,v 1.23 2001/01/14 05:08:15 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -248,14 +248,12 @@ ExecProcNode(Plan *node, Plan *parent)
{
TupleTableSlot *result;
CHECK_FOR_INTERRUPTS();
/* ----------------
* deal with NULL nodes..
* ----------------
*/
if (QueryCancel)
CancelQuery();
if (node == NULL)
return NULL;