mirror of
https://github.com/postgres/postgres.git
synced 2025-07-28 23:42:10 +03:00
Massive commit to run PGINDENT on all *.c and *.h files.
This commit is contained in:
Bruce Momjian
@ -1,29 +1,29 @@
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||||
/*-------------------------------------------------------------------------
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*
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* dest.c--
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* support for various communication destinations - see lib/H/tcop/dest.h
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* support for various communication destinations - see lib/H/tcop/dest.h
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*
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* Copyright (c) 1994, Regents of the University of California
|
||||
*
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||||
*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/tcop/dest.c,v 1.10 1997/08/29 09:04:18 vadim Exp $
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* $Header: /cvsroot/pgsql/src/backend/tcop/dest.c,v 1.11 1997/09/07 04:49:31 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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/*
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* INTERFACE ROUTINES
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* BeginCommand - prepare destination for tuples of the given type
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* EndCommand - tell destination that no more tuples will arrive
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* NullCommand - tell dest that the last of a query sequence was processed
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*
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* NOTES
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* These routines do the appropriate work before and after
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* tuples are returned by a query to keep the backend and the
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* "destination" portals synchronized.
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* INTERFACE ROUTINES
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* BeginCommand - prepare destination for tuples of the given type
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* EndCommand - tell destination that no more tuples will arrive
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* NullCommand - tell dest that the last of a query sequence was processed
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*
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* NOTES
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* These routines do the appropriate work before and after
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* tuples are returned by a query to keep the backend and the
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* "destination" portals synchronized.
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*
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*/
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#include <stdio.h> /* for sprintf() */
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#include <stdio.h> /* for sprintf() */
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#include <string.h>
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#include "postgres.h"
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@ -43,10 +43,10 @@
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#include "commands/async.h"
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static char CommandInfo[32] = {0};
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static char CommandInfo[32] = {0};
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/* ----------------
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* output functions
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* output functions
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* ----------------
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*/
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static void
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@ -54,85 +54,88 @@ donothing(HeapTuple tuple, TupleDesc attrdesc)
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{
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}
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extern void spi_printtup (HeapTuple tuple, TupleDesc tupdesc);
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extern void spi_printtup(HeapTuple tuple, TupleDesc tupdesc);
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void (*DestToFunction(CommandDest dest))(HeapTuple, TupleDesc)
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void (*
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DestToFunction(CommandDest dest)) (HeapTuple, TupleDesc)
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{
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switch (dest) {
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case RemoteInternal:
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return printtup_internal;
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break;
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case Remote:
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return printtup;
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break;
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case Local:
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return be_printtup;
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break;
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case Debug:
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return debugtup;
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break;
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case SPI:
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return spi_printtup;
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break;
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case None:
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default:
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switch (dest)
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{
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case RemoteInternal:
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return printtup_internal;
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break;
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case Remote:
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return printtup;
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break;
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case Local:
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return be_printtup;
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break;
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case Debug:
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return debugtup;
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break;
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case SPI:
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return spi_printtup;
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break;
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case None:
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default:
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return donothing;
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break;
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}
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/*
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* never gets here, but DECstation lint appears to be stupid...
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*/
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return donothing;
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break;
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}
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/*
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* never gets here, but DECstation lint appears to be stupid...
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*/
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return donothing;
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}
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/* ----------------
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* EndCommand - tell destination that no more tuples will arrive
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* EndCommand - tell destination that no more tuples will arrive
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* ----------------
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*/
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void
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EndCommand(char *commandTag, CommandDest dest)
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{
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char buf[64];
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switch (dest) {
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case RemoteInternal:
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case Remote:
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/* ----------------
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* tell the fe that the query is over
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* ----------------
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*/
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pq_putnchar("C", 1);
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sprintf(buf, "%s%s", commandTag, CommandInfo);
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CommandInfo[0] = 0;
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pq_putstr(buf);
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pq_flush();
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break;
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case Local:
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case Debug:
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break;
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case CopyEnd:
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pq_putnchar("Z", 1);
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pq_flush();
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break;
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case None:
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default:
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break;
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}
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char buf[64];
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|
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switch (dest)
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{
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case RemoteInternal:
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case Remote:
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/* ----------------
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* tell the fe that the query is over
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* ----------------
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*/
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pq_putnchar("C", 1);
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sprintf(buf, "%s%s", commandTag, CommandInfo);
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CommandInfo[0] = 0;
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pq_putstr(buf);
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pq_flush();
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break;
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case Local:
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case Debug:
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break;
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case CopyEnd:
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pq_putnchar("Z", 1);
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pq_flush();
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break;
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case None:
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default:
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break;
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}
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}
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/*
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* These are necessary to sync communications between fe/be processes doing
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* COPY rel TO stdout
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*
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* or
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*
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* or
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*
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* COPY rel FROM stdin
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*
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@ -140,198 +143,211 @@ EndCommand(char *commandTag, CommandDest dest)
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void
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||||
SendCopyBegin(void)
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{
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pq_putnchar("B", 1);
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/* pq_putint(0, 4); */
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pq_flush();
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pq_putnchar("B", 1);
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/* pq_putint(0, 4); */
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||||
pq_flush();
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}
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void
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ReceiveCopyBegin(void)
|
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{
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pq_putnchar("D", 1);
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/* pq_putint(0, 4); */
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pq_flush();
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pq_putnchar("D", 1);
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/* pq_putint(0, 4); */
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pq_flush();
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}
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/* ----------------
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||||
* NullCommand - tell dest that the last of a query sequence was processed
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*
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* Necessary to implement the hacky FE/BE interface to handle
|
||||
* multiple-return queries.
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||||
* NullCommand - tell dest that the last of a query sequence was processed
|
||||
*
|
||||
* Necessary to implement the hacky FE/BE interface to handle
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* multiple-return queries.
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* ----------------
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*/
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void
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NullCommand(CommandDest dest)
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{
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||||
switch (dest) {
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||||
case RemoteInternal:
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||||
case Remote: {
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||||
switch (dest)
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{
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case RemoteInternal:
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case Remote:
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||||
{
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#if 0
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/* Do any asynchronous notification. If front end wants to poll,
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||||
it can send null queries to call this function.
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*/
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PQNotifyList *nPtr;
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MemoryContext orig;
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if (notifyContext == NULL) {
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notifyContext = CreateGlobalMemory("notify");
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}
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orig = MemoryContextSwitchTo((MemoryContext)notifyContext);
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for (nPtr = PQnotifies() ;
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nPtr != NULL;
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nPtr = (PQNotifyList *)SLGetSucc(&nPtr->Node)) {
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pq_putnchar("A",1);
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pq_putint(0, 4);
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pq_putstr(nPtr->relname);
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pq_putint(nPtr->be_pid,4);
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PQremoveNotify(nPtr);
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}
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pq_flush();
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PQcleanNotify(); /* garbage collect */
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MemoryContextSwitchTo(orig);
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/*
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* Do any asynchronous notification. If front end wants to
|
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* poll, it can send null queries to call this function.
|
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*/
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PQNotifyList *nPtr;
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MemoryContext orig;
|
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if (notifyContext == NULL)
|
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{
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notifyContext = CreateGlobalMemory("notify");
|
||||
}
|
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orig = MemoryContextSwitchTo((MemoryContext) notifyContext);
|
||||
|
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for (nPtr = PQnotifies();
|
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nPtr != NULL;
|
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nPtr = (PQNotifyList *) SLGetSucc(&nPtr->Node))
|
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{
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pq_putnchar("A", 1);
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pq_putint(0, 4);
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pq_putstr(nPtr->relname);
|
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pq_putint(nPtr->be_pid, 4);
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PQremoveNotify(nPtr);
|
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}
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pq_flush();
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PQcleanNotify(); /* garbage collect */
|
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MemoryContextSwitchTo(orig);
|
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#endif
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/* ----------------
|
||||
* tell the fe that the last of the queries has finished
|
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* ----------------
|
||||
*/
|
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/* pq_putnchar("I", 1); */
|
||||
pq_putstr("I");
|
||||
/* pq_putint(0, 4);*/
|
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pq_flush();
|
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}
|
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break;
|
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|
||||
case Local:
|
||||
case Debug:
|
||||
case None:
|
||||
default:
|
||||
break;
|
||||
}
|
||||
/* ----------------
|
||||
* tell the fe that the last of the queries has finished
|
||||
* ----------------
|
||||
*/
|
||||
/* pq_putnchar("I", 1); */
|
||||
pq_putstr("I");
|
||||
/* pq_putint(0, 4); */
|
||||
pq_flush();
|
||||
}
|
||||
break;
|
||||
|
||||
case Local:
|
||||
case Debug:
|
||||
case None:
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* ----------------
|
||||
* BeginCommand - prepare destination for tuples of the given type
|
||||
* BeginCommand - prepare destination for tuples of the given type
|
||||
* ----------------
|
||||
*/
|
||||
void
|
||||
BeginCommand(char *pname,
|
||||
int operation,
|
||||
TupleDesc tupdesc,
|
||||
bool isIntoRel,
|
||||
bool isIntoPortal,
|
||||
char *tag,
|
||||
CommandDest dest)
|
||||
int operation,
|
||||
TupleDesc tupdesc,
|
||||
bool isIntoRel,
|
||||
bool isIntoPortal,
|
||||
char *tag,
|
||||
CommandDest dest)
|
||||
{
|
||||
PortalEntry *entry;
|
||||
AttributeTupleForm *attrs = tupdesc->attrs;
|
||||
int natts = tupdesc->natts;
|
||||
int i;
|
||||
char *p;
|
||||
PortalEntry *entry;
|
||||
AttributeTupleForm *attrs = tupdesc->attrs;
|
||||
int natts = tupdesc->natts;
|
||||
int i;
|
||||
char *p;
|
||||
|
||||
switch (dest) {
|
||||
case RemoteInternal:
|
||||
case Remote:
|
||||
/* ----------------
|
||||
* if this is a "retrieve portal" query, just return
|
||||
* because nothing needs to be sent to the fe.
|
||||
* ----------------
|
||||
*/
|
||||
CommandInfo[0] = 0;
|
||||
if (isIntoPortal)
|
||||
return;
|
||||
|
||||
/* ----------------
|
||||
* if portal name not specified for remote query,
|
||||
* use the "blank" portal.
|
||||
* ----------------
|
||||
*/
|
||||
if (pname == NULL)
|
||||
pname = "blank";
|
||||
|
||||
/* ----------------
|
||||
* send fe info on tuples we're about to send
|
||||
* ----------------
|
||||
*/
|
||||
pq_flush();
|
||||
pq_putnchar("P", 1); /* new portal.. */
|
||||
pq_putstr(pname); /* portal name */
|
||||
|
||||
/* ----------------
|
||||
* if this is a retrieve, then we send back the tuple
|
||||
* descriptor of the tuples. "retrieve into" is an
|
||||
* exception because no tuples are returned in that case.
|
||||
* ----------------
|
||||
*/
|
||||
if (operation == CMD_SELECT && !isIntoRel) {
|
||||
pq_putnchar("T", 1); /* type info to follow.. */
|
||||
pq_putint(natts, 2); /* number of attributes in tuples */
|
||||
|
||||
for (i = 0; i < natts; ++i) {
|
||||
pq_putstr(attrs[i]->attname.data);/* if 16 char name oops.. */
|
||||
pq_putint((int) attrs[i]->atttypid, 4);
|
||||
pq_putint(attrs[i]->attlen, 2);
|
||||
}
|
||||
switch (dest)
|
||||
{
|
||||
case RemoteInternal:
|
||||
case Remote:
|
||||
/* ----------------
|
||||
* if this is a "retrieve portal" query, just return
|
||||
* because nothing needs to be sent to the fe.
|
||||
* ----------------
|
||||
*/
|
||||
CommandInfo[0] = 0;
|
||||
if (isIntoPortal)
|
||||
return;
|
||||
|
||||
/* ----------------
|
||||
* if portal name not specified for remote query,
|
||||
* use the "blank" portal.
|
||||
* ----------------
|
||||
*/
|
||||
if (pname == NULL)
|
||||
pname = "blank";
|
||||
|
||||
/* ----------------
|
||||
* send fe info on tuples we're about to send
|
||||
* ----------------
|
||||
*/
|
||||
pq_flush();
|
||||
pq_putnchar("P", 1); /* new portal.. */
|
||||
pq_putstr(pname); /* portal name */
|
||||
|
||||
/* ----------------
|
||||
* if this is a retrieve, then we send back the tuple
|
||||
* descriptor of the tuples. "retrieve into" is an
|
||||
* exception because no tuples are returned in that case.
|
||||
* ----------------
|
||||
*/
|
||||
if (operation == CMD_SELECT && !isIntoRel)
|
||||
{
|
||||
pq_putnchar("T", 1);/* type info to follow.. */
|
||||
pq_putint(natts, 2);/* number of attributes in tuples */
|
||||
|
||||
for (i = 0; i < natts; ++i)
|
||||
{
|
||||
pq_putstr(attrs[i]->attname.data); /* if 16 char name
|
||||
* oops.. */
|
||||
pq_putint((int) attrs[i]->atttypid, 4);
|
||||
pq_putint(attrs[i]->attlen, 2);
|
||||
}
|
||||
}
|
||||
pq_flush();
|
||||
break;
|
||||
|
||||
case Local:
|
||||
/* ----------------
|
||||
* prepare local portal buffer for query results
|
||||
* and setup result for PQexec()
|
||||
* ----------------
|
||||
*/
|
||||
entry = be_currentportal();
|
||||
if (pname != NULL)
|
||||
pbuf_setportalinfo(entry, pname);
|
||||
|
||||
if (operation == CMD_SELECT && !isIntoRel)
|
||||
{
|
||||
be_typeinit(entry, tupdesc, natts);
|
||||
p = (char *) palloc(strlen(entry->name) + 2);
|
||||
p[0] = 'P';
|
||||
strcpy(p + 1, entry->name);
|
||||
}
|
||||
else
|
||||
{
|
||||
p = (char *) palloc(strlen(tag) + 2);
|
||||
p[0] = 'C';
|
||||
strcpy(p + 1, tag);
|
||||
}
|
||||
entry->result = p;
|
||||
break;
|
||||
|
||||
case Debug:
|
||||
/* ----------------
|
||||
* show the return type of the tuples
|
||||
* ----------------
|
||||
*/
|
||||
if (pname == NULL)
|
||||
pname = "blank";
|
||||
|
||||
showatts(pname, tupdesc);
|
||||
break;
|
||||
|
||||
case None:
|
||||
default:
|
||||
break;
|
||||
}
|
||||
pq_flush();
|
||||
break;
|
||||
|
||||
case Local:
|
||||
/* ----------------
|
||||
* prepare local portal buffer for query results
|
||||
* and setup result for PQexec()
|
||||
* ----------------
|
||||
*/
|
||||
entry = be_currentportal();
|
||||
if (pname != NULL)
|
||||
pbuf_setportalinfo(entry, pname);
|
||||
|
||||
if (operation == CMD_SELECT && !isIntoRel) {
|
||||
be_typeinit(entry, tupdesc, natts);
|
||||
p = (char *) palloc(strlen(entry->name)+2);
|
||||
p[0] = 'P';
|
||||
strcpy(p+1,entry->name);
|
||||
} else {
|
||||
p = (char *) palloc(strlen(tag)+2);
|
||||
p[0] = 'C';
|
||||
strcpy(p+1,tag);
|
||||
}
|
||||
entry->result = p;
|
||||
break;
|
||||
|
||||
case Debug:
|
||||
/* ----------------
|
||||
* show the return type of the tuples
|
||||
* ----------------
|
||||
*/
|
||||
if (pname == NULL)
|
||||
pname = "blank";
|
||||
|
||||
showatts(pname, tupdesc);
|
||||
break;
|
||||
|
||||
case None:
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
UpdateCommandInfo (int operation, Oid lastoid, uint32 tuples)
|
||||
UpdateCommandInfo(int operation, Oid lastoid, uint32 tuples)
|
||||
{
|
||||
switch (operation)
|
||||
{
|
||||
case CMD_INSERT :
|
||||
if ( tuples > 1 )
|
||||
lastoid = InvalidOid;
|
||||
sprintf (CommandInfo, " %u %u", lastoid, tuples);
|
||||
break;
|
||||
case CMD_DELETE :
|
||||
case CMD_UPDATE :
|
||||
sprintf (CommandInfo, " %u", tuples);
|
||||
break;
|
||||
default :
|
||||
CommandInfo[0] = 0;
|
||||
}
|
||||
return;
|
||||
switch (operation)
|
||||
{
|
||||
case CMD_INSERT:
|
||||
if (tuples > 1)
|
||||
lastoid = InvalidOid;
|
||||
sprintf(CommandInfo, " %u %u", lastoid, tuples);
|
||||
break;
|
||||
case CMD_DELETE:
|
||||
case CMD_UPDATE:
|
||||
sprintf(CommandInfo, " %u", tuples);
|
||||
break;
|
||||
default:
|
||||
CommandInfo[0] = 0;
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user