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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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4
src/include/tcop/tcopprot.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: tcopprot.h,v 1.36 2000/12/03 10:27:29 vadim Exp $
* $Id: tcopprot.h,v 1.37 2001/01/14 05:08:16 tgl Exp $
*
* OLD COMMENTS
* This file was created so that other c files could get the two
@@ -40,9 +40,7 @@ extern void pg_exec_query_string(char *query_string,
#endif /* BOOTSTRAP_INCLUDE */
extern void handle_warn(SIGNAL_ARGS);
extern void die(SIGNAL_ARGS);
extern void CancelQuery(void);
extern int PostgresMain(int argc, char *argv[],
int real_argc, char *real_argv[], const char *username);
extern void ResetUsage(void);