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Clean up psql's control-C handling to avoid longjmp'ing out of random

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places --- that risks corrupting data structures, losing sync with the
backend, etc.  We now longjmp only from calls to readline, fgets, and
fread, which we assume are coded to protect themselves against interrupts
at undesirable times.  This requires adding explicit tests for
cancel_pressed in long-running loops, but on the whole it's far cleaner.
Martijn van Oosterhout and Tom Lane.
This commit is contained in:
Tom Lane
2006-06-14 16:49:03 +00:00
parent ace93353ea
commit f3164c0200
12 changed files with 352 additions and 161 deletions
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6
src/bin/psql/variables.c
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@ -3,7 +3,7 @@
*
* Copyright (c) 2000-2006, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/bin/psql/variables.c,v 1.23 2006/03/05 15:58:52 momjian Exp $
* $PostgreSQL: pgsql/src/bin/psql/variables.c,v 1.24 2006/06/14 16:49:03 tgl Exp $
*/
#include "postgres_fe.h"
#include "common.h"
@ -127,7 +127,11 @@ PrintVariables(VariableSpace space)
struct _variable *ptr;
for (ptr = space->next; ptr; ptr = ptr->next)
{
printf("%s = '%s'\n", ptr->name, ptr->value);
if (cancel_pressed)
break;
}
}
bool