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/*-------------------------------------------------------------------------
*
* enbl.c
* POSTGRES module enable and disable support code.
*
* Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/init/Attic/enbl.c,v 1.7.2.1 1999/08/02 05:25:09 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "utils/module.h"
/*
* BypassEnable
* False iff enable/disable processing is required given on and "*countP."
*
* Note:
* As a side-effect, *countP is modified. It should be 0 initially.
*
* Exceptions:
* BadState if called with pointer to value 0 and false.
* BadArg if "countP" is invalid pointer.
* BadArg if on is invalid.
*/
bool
BypassEnable(int *enableCountInOutP, bool on)
{
AssertArg(PointerIsValid(enableCountInOutP));
AssertArg(BoolIsValid(on));
if (on)
{
*enableCountInOutP += 1;
return (bool) (*enableCountInOutP >= 2);
}
Assert(*enableCountInOutP >= 1);
*enableCountInOutP -= 1;
return (bool) (*enableCountInOutP >= 1);
}
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