Remove now redundant pgpipe code.

src/backend/port/pipe.c

-/*-------------------------------------------------------------------------
- *
- * pipe.c
- *	  pipe()
- *
- * Copyright (c) 1996-2012, PostgreSQL Global Development Group
- *
- *	This is a replacement version of pipe for Win32 which allows
- *	returned handles to be used in select(). Note that read/write calls
- *	must be replaced with recv/send.
- *
- * IDENTIFICATION
- *	  src/backend/port/pipe.c
- *
- *-------------------------------------------------------------------------
- */
-
-#include "postgres.h"
-
-#ifdef WIN32
-int
-pgpipe(int handles[2])
-{
-	SOCKET		s;
-	struct sockaddr_in serv_addr;
-	int			len = sizeof(serv_addr);
-
-	handles[0] = handles[1] = INVALID_SOCKET;
-
-	if ((s = socket(AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
-	{
-		ereport(LOG, (errmsg_internal("pgpipe could not create socket: %ui", WSAGetLastError())));
-		return -1;
-	}
-
-	memset((void *) &serv_addr, 0, sizeof(serv_addr));
-	serv_addr.sin_family = AF_INET;
-	serv_addr.sin_port = htons(0);
-	serv_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
-	if (bind(s, (SOCKADDR *) &serv_addr, len) == SOCKET_ERROR)
-	{
-		ereport(LOG, (errmsg_internal("pgpipe could not bind: %ui", WSAGetLastError())));
-		closesocket(s);
-		return -1;
-	}
-	if (listen(s, 1) == SOCKET_ERROR)
-	{
-		ereport(LOG, (errmsg_internal("pgpipe could not listen: %ui", WSAGetLastError())));
-		closesocket(s);
-		return -1;
-	}
-	if (getsockname(s, (SOCKADDR *) &serv_addr, &len) == SOCKET_ERROR)
-	{
-		ereport(LOG, (errmsg_internal("pgpipe could not getsockname: %ui", WSAGetLastError())));
-		closesocket(s);
-		return -1;
-	}
-	if ((handles[1] = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
-	{
-		ereport(LOG, (errmsg_internal("pgpipe could not create socket 2: %ui", WSAGetLastError())));
-		closesocket(s);
-		return -1;
-	}
-
-	if (connect(handles[1], (SOCKADDR *) &serv_addr, len) == SOCKET_ERROR)
-	{
-		ereport(LOG, (errmsg_internal("pgpipe could not connect socket: %ui", WSAGetLastError())));
-		closesocket(s);
-		return -1;
-	}
-	if ((handles[0] = accept(s, (SOCKADDR *) &serv_addr, &len)) == INVALID_SOCKET)
-	{
-		ereport(LOG, (errmsg_internal("pgpipe could not accept socket: %ui", WSAGetLastError())));
-		closesocket(handles[1]);
-		handles[1] = INVALID_SOCKET;
-		closesocket(s);
-		return -1;
-	}
-	closesocket(s);
-	return 0;
-}
-
-
-int
-piperead(int s, char *buf, int len)
-{
-	int			ret = recv(s, buf, len, 0);
-
-	if (ret < 0 && WSAGetLastError() == WSAECONNRESET)
-		/* EOF on the pipe! (win32 socket based implementation) */
-		ret = 0;
-	return ret;
-}
-
-#endif

src/backend/postmaster/syslogger.c

@@ -391,7 +391,7 @@ SysLoggerMain(int argc, char *argv[])
 		}
 		else if (rc > 0 && FD_ISSET(syslogPipe[0], &rfds))
 		{
-			bytesRead = piperead(syslogPipe[0],
+			bytesRead = read(syslogPipe[0],
 							 logbuffer + bytes_in_logbuffer,
 							 sizeof(logbuffer) - bytes_in_logbuffer);
 			if (bytesRead < 0)
@@ -487,7 +487,7 @@ SysLogger_Start(void)
 #ifndef WIN32
 	if (syslogPipe[0] < 0)
 	{
-		if (pgpipe(syslogPipe) < 0)
+		if (pipe(syslogPipe) < 0)
 			ereport(FATAL,
 					(errcode_for_socket_access(),
 					 (errmsg("could not create pipe for syslog: %m"))));

src/bin/pg_basebackup/pg_basebackup.c

@@ -162,7 +162,7 @@ segment_callback(XLogRecPtr segendpos, uint32 timeline)
 			char		xlogend[64];
 
 			MemSet(xlogend, 0, sizeof(xlogend));
-			r = piperead(bgpipe[0], xlogend, sizeof(xlogend));
+			r = read(bgpipe[0], xlogend, sizeof(xlogend));
 			if (r < 0)
 			{
 				fprintf(stderr, _("%s: could not read from ready pipe: %s\n"),
@@ -270,7 +270,7 @@ StartLogStreamer(char *startpos, uint32 timeline, char *sysidentifier)
 
 #ifndef WIN32
 	/* Create our background pipe */
-	if (pgpipe(bgpipe) < 0)
+	if (pipe(bgpipe) < 0)
 	{
 		fprintf(stderr, _("%s: could not create pipe for background process: %s\n"),
 				progname, strerror(errno));
@@ -1094,7 +1094,7 @@ BaseBackup(void)
 			fprintf(stderr, _("%s: waiting for background process to finish streaming...\n"), progname);
 
 #ifndef WIN32
-		if (pipewrite(bgpipe[1], xlogend, strlen(xlogend)) != strlen(xlogend))
+		if (write(bgpipe[1], xlogend, strlen(xlogend)) != strlen(xlogend))
 		{
 			fprintf(stderr, _("%s: could not send command to background pipe: %s\n"),
 					progname, strerror(errno));

src/include/port.h

@@ -250,26 +250,7 @@ extern char *pgwin32_setlocale(int category, const char *locale);
 /* Portable prompt handling */
 extern char *simple_prompt(const char *prompt, int maxlen, bool echo);
 
-/*
- *	WIN32 doesn't allow descriptors returned by pipe() to be used in select(),
- *	so for that platform we use socket() instead of pipe().
- *	There is some inconsistency here because sometimes we require pg*, like
- *	pgpipe, but in other cases we define rename to pgrename just on Win32.
- */
-#ifndef WIN32
-/*
- *	The function prototypes are not supplied because every C file
- *	includes this file.
- */
-#define pgpipe(a)			pipe(a)
-#define piperead(a,b,c)		read(a,b,c)
-#define pipewrite(a,b,c)	write(a,b,c)
-#else
-extern int	pgpipe(int handles[2]);
-extern int	piperead(int s, char *buf, int len);
-
-#define pipewrite(a,b,c)	send(a,b,c,0)
-
+#ifdef WIN32
 #define PG_SIGNAL_COUNT 32
 #define kill(pid,sig)	pgkill(pid,sig)
 extern int	pgkill(int pid, int sig);

src/port/exec.c

@@ -496,7 +496,8 @@ pipe_read_line(char *cmd, char *line, int maxsize)
 /*
  * pclose() plus useful error reporting
  * Is this necessary?  bjm 2004-05-11
- * It is better here because pipe.c has win32 backend linkage.
+ * Originaally this was stated to be here because pipe.c had backend linkage.
+ * Perhaps that's no longer so now we have got rid of pipe.c amd 2012-03-28
  */
 int
 pclose_check(FILE *stream)

src/tools/msvc/Mkvcbuild.pm

@@ -73,7 +73,6 @@ sub mkvcbuild
     $postgres->ReplaceFile('src\backend\port\pg_shmem.c','src\backend\port\win32_shmem.c');
     $postgres->ReplaceFile('src\backend\port\pg_latch.c','src\backend\port\win32_latch.c');
     $postgres->AddFiles('src\port',@pgportfiles);
-    $postgres->AddFile('src\backend\port\pipe.c');
     $postgres->AddDir('src\timezone');
     $postgres->AddFiles('src\backend\parser','scan.l','gram.y');
     $postgres->AddFiles('src\backend\bootstrap','bootscanner.l','bootparse.y');