database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-10-15 05:46:52 +03:00
Code Activity

Revise backend libpq interfaces so that messages to the frontend

Browse Source 
can be generated in a buffer and then sent to the frontend in a single
libpq call.  This solves problems with NOTICE and ERROR messages generated
in the middle of a data message or COPY OUT operation.
This commit is contained in:
Tom Lane
1999-04-25 03:19:27 +00:00
parent fc08814e00
commit 95cc41b81d
18 changed files with 1071 additions and 1028 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/backend/commands/async.c
View File

@@ -6,7 +6,7 @@
* Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/async.c,v 1.44 1999/02/13 23:15:00 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/async.c,v 1.45 1999/04/25 03:19:08 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -94,6 +94,7 @@
#include "fmgr.h"
#include "lib/dllist.h"
#include "libpq/libpq.h"
#include "libpq/pqformat.h"
#include "miscadmin.h"
#include "storage/bufmgr.h"
#include "storage/lmgr.h"
@@ -798,9 +799,12 @@ NotifyMyFrontEnd(char *relname, int32 listenerPID)
{
if (whereToSendOutput == Remote)
{
pq_putnchar("A", 1);
pq_putint(listenerPID, sizeof(int32));
pq_putstr(relname);
StringInfoData buf;
pq_beginmessage(&buf);
pq_sendbyte(&buf, 'A');
pq_sendint(&buf, listenerPID, sizeof(int32));
pq_sendstring(&buf, relname, strlen(relname));
pq_endmessage(&buf);
/* NOTE: we do not do pq_flush() here. For a self-notify, it will
* happen at the end of the transaction, and for incoming notifies
* ProcessIncomingNotify will do it after finding all the notifies.