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Second round of fmgr changes: triggers are now invoked in new style,

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CurrentTriggerData is history.
This commit is contained in:
Tom Lane
2000-05-29 01:59:17 +00:00
parent 147ccf5c80
commit 18952f6744
41 changed files with 666 additions and 674 deletions
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32
contrib/spi/autoinc.c
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@ -2,13 +2,13 @@
#include "executor/spi.h" /* this is what you need to work with SPI */
#include "commands/trigger.h" /* -"- and triggers */
HeapTuple autoinc(void);
extern Datum autoinc(PG_FUNCTION_ARGS);
extern int4 nextval(struct varlena * seqin);
HeapTuple
autoinc()
Datum
autoinc(PG_FUNCTION_ARGS)
{
TriggerData *trigdata = (TriggerData *) fcinfo->context;
Trigger *trigger; /* to get trigger name */
int nargs; /* # of arguments */
int *chattrs; /* attnums of attributes to change */
@ -22,24 +22,24 @@ autoinc()
bool isnull;
int i;
if (!CurrentTriggerData)
elog(ERROR, "autoinc: triggers are not initialized");
if (TRIGGER_FIRED_FOR_STATEMENT(CurrentTriggerData->tg_event))
if (!CALLED_AS_TRIGGER(fcinfo))
elog(ERROR, "autoinc: not fired by trigger manager");
if (TRIGGER_FIRED_FOR_STATEMENT(trigdata->tg_event))
elog(ERROR, "autoinc: can't process STATEMENT events");
if (TRIGGER_FIRED_AFTER(CurrentTriggerData->tg_event))
if (TRIGGER_FIRED_AFTER(trigdata->tg_event))
elog(ERROR, "autoinc: must be fired before event");
if (TRIGGER_FIRED_BY_INSERT(CurrentTriggerData->tg_event))
rettuple = CurrentTriggerData->tg_trigtuple;
else if (TRIGGER_FIRED_BY_UPDATE(CurrentTriggerData->tg_event))
rettuple = CurrentTriggerData->tg_newtuple;
if (TRIGGER_FIRED_BY_INSERT(trigdata->tg_event))
rettuple = trigdata->tg_trigtuple;
else if (TRIGGER_FIRED_BY_UPDATE(trigdata->tg_event))
rettuple = trigdata->tg_newtuple;
else
elog(ERROR, "autoinc: can't process DELETE events");
rel = CurrentTriggerData->tg_relation;
rel = trigdata->tg_relation;
relname = SPI_getrelname(rel);
trigger = CurrentTriggerData->tg_trigger;
trigger = trigdata->tg_trigger;
nargs = trigger->tgnargs;
if (nargs <= 0 || nargs % 2 != 0)
@ -48,8 +48,6 @@ autoinc()
args = trigger->tgargs;
tupdesc = rel->rd_att;
CurrentTriggerData = NULL;
chattrs = (int *) palloc(nargs / 2 * sizeof(int));
newvals = (Datum *) palloc(nargs / 2 * sizeof(Datum));
@ -96,5 +94,5 @@ autoinc()
pfree(chattrs);
pfree(newvals);
return (rettuple);
return PointerGetDatum(rettuple);
}