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Add WIN32 pipe implementation that uses sockets.

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Claudio Natoli
This commit is contained in:
Bruce Momjian
2004-01-09 04:58:09 +00:00
parent 0d2148a71e
commit ee7fbb1eaa
4 changed files with 77 additions and 7 deletions
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21
src/backend/postmaster/pgstat.c
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@@ -13,7 +13,7 @@
*
* Copyright (c) 2001-2003, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.51 2004/01/06 23:15:22 momjian Exp $
* $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.52 2004/01/09 04:58:09 momjian Exp $
* ----------
*/
#include "postgres.h"
@@ -135,6 +135,19 @@ static void pgstat_recv_tabpurge(PgStat_MsgTabpurge *msg, int len);
static void pgstat_recv_dropdb(PgStat_MsgDropdb *msg, int len);
static void pgstat_recv_resetcounter(PgStat_MsgResetcounter *msg, int len);
/*
* WIN32 doesn't allow descriptors returned by pipe() to be used in select(),
* so for that platform we use socket() instead of pipe().
*/
#ifndef WIN32
#define pgpipe(a) pipe(a)
#define piperead(a,b,c) read(a,b,c)
#define pipewrite(a,b,c) write(a,b,c)
#else
/* pgpipe() is in /src/port */
#define piperead(a,b,c) recv(a,b,c,0)
#define pipewrite(a,b,c) send(a,b,c,0)
#endif
/* ------------------------------------------------------------
* Public functions called from postmaster follow
@@ -1380,7 +1393,7 @@ pgstat_main(PGSTAT_FORK_ARGS)
* two buffer processes competing to read from the UDP socket --- not
* good.
*/
if (pipe(pgStatPipe) < 0)
if (pgpipe(pgStatPipe) < 0)
{
ereport(LOG,
(errcode_for_socket_access(),
@@ -1595,7 +1608,7 @@ pgstat_mainChild(PGSTAT_FORK_ARGS)
while (nread < targetlen)
{
len = read(readPipe,
len = piperead(readPipe,
((char *) &msg) + nread,
targetlen - nread);
if (len < 0)
@@ -1920,7 +1933,7 @@ pgstat_recvbuffer(void)
if (xfr > msg_have)
xfr = msg_have;
Assert(xfr > 0);
len = write(writePipe, msgbuffer + msg_send, xfr);
len = pipewrite(writePipe, msgbuffer + msg_send, xfr);
if (len < 0)
{
if (errno == EINTR || errno == EAGAIN)