From f1f39911e0d2d88c98eae96a3eb14a53c664206f Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Sat, 30 Nov 2019 22:37:25 +0300
Subject: Upgrade to 12.1

---
 libpq/win32/open.c | 167 -----------------------------------------------------
 1 file changed, 167 deletions(-)
 delete mode 100644 libpq/win32/open.c

(limited to 'libpq/win32/open.c')

diff --git a/libpq/win32/open.c b/libpq/win32/open.c
deleted file mode 100644
index 717375d..0000000
--- a/libpq/win32/open.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * open.c
- *	   Win32 open() replacement
- *
- *
- * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
- *
- * src/port/open.c
- *
- *-------------------------------------------------------------------------
- */
-
-#ifdef WIN32
-
-#ifndef FRONTEND
-#include "postgres.h"
-#else
-#include "postgres_fe.h"
-#endif
-
-#include <windows.h>
-#include <fcntl.h>
-#include <assert.h>
-
-
-static int
-openFlagsToCreateFileFlags(int openFlags)
-{
-	switch (openFlags & (O_CREAT | O_TRUNC | O_EXCL))
-	{
-			/* O_EXCL is meaningless without O_CREAT */
-		case 0:
-		case O_EXCL:
-			return OPEN_EXISTING;
-
-		case O_CREAT:
-			return OPEN_ALWAYS;
-
-			/* O_EXCL is meaningless without O_CREAT */
-		case O_TRUNC:
-		case O_TRUNC | O_EXCL:
-			return TRUNCATE_EXISTING;
-
-		case O_CREAT | O_TRUNC:
-			return CREATE_ALWAYS;
-
-			/* O_TRUNC is meaningless with O_CREAT */
-		case O_CREAT | O_EXCL:
-		case O_CREAT | O_TRUNC | O_EXCL:
-			return CREATE_NEW;
-	}
-
-	/* will never get here */
-	return 0;
-}
-
-/*
- *	 - file attribute setting, based on fileMode?
- */
-int
-pgwin32_open(const char *fileName, int fileFlags,...)
-{
-	int			fd;
-	HANDLE		h = INVALID_HANDLE_VALUE;
-	SECURITY_ATTRIBUTES sa;
-	int			loops = 0;
-
-	/* Check that we can handle the request */
-	assert((fileFlags & ((O_RDONLY | O_WRONLY | O_RDWR) | O_APPEND |
-						 (O_RANDOM | O_SEQUENTIAL | O_TEMPORARY) |
-						 _O_SHORT_LIVED | O_DSYNC | O_DIRECT |
-		  (O_CREAT | O_TRUNC | O_EXCL) | (O_TEXT | O_BINARY))) == fileFlags);
-
-	sa.nLength = sizeof(sa);
-	sa.bInheritHandle = TRUE;
-	sa.lpSecurityDescriptor = NULL;
-
-	while ((h = CreateFile(fileName,
-	/* cannot use O_RDONLY, as it == 0 */
-					  (fileFlags & O_RDWR) ? (GENERIC_WRITE | GENERIC_READ) :
-					 ((fileFlags & O_WRONLY) ? GENERIC_WRITE : GENERIC_READ),
-	/* These flags allow concurrent rename/unlink */
-					(FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE),
-						   &sa,
-						   openFlagsToCreateFileFlags(fileFlags),
-						   FILE_ATTRIBUTE_NORMAL |
-					 ((fileFlags & O_RANDOM) ? FILE_FLAG_RANDOM_ACCESS : 0) |
-			   ((fileFlags & O_SEQUENTIAL) ? FILE_FLAG_SEQUENTIAL_SCAN : 0) |
-			  ((fileFlags & _O_SHORT_LIVED) ? FILE_ATTRIBUTE_TEMPORARY : 0) |
-				((fileFlags & O_TEMPORARY) ? FILE_FLAG_DELETE_ON_CLOSE : 0) |
-					  ((fileFlags & O_DIRECT) ? FILE_FLAG_NO_BUFFERING : 0) |
-					   ((fileFlags & O_DSYNC) ? FILE_FLAG_WRITE_THROUGH : 0),
-						   NULL)) == INVALID_HANDLE_VALUE)
-	{
-		/*
-		 * Sharing violation or locking error can indicate antivirus, backup
-		 * or similar software that's locking the file. Try again for 30
-		 * seconds before giving up.
-		 */
-		DWORD		err = GetLastError();
-
-		if (err == ERROR_SHARING_VIOLATION ||
-			err == ERROR_LOCK_VIOLATION)
-		{
-			pg_usleep(100000);
-			loops++;
-
-#ifndef FRONTEND
-			if (loops == 50)
-				ereport(LOG,
-						(errmsg("could not open file \"%s\": %s", fileName,
-								(err == ERROR_SHARING_VIOLATION) ? _("sharing violation") : _("lock violation")),
-						 errdetail("Continuing to retry for 30 seconds."),
-						 errhint("You might have antivirus, backup, or similar software interfering with the database system.")));
-#endif
-
-			if (loops < 300)
-				continue;
-		}
-
-		_dosmaperr(err);
-		return -1;
-	}
-
-	/* _open_osfhandle will, on error, set errno accordingly */
-	if ((fd = _open_osfhandle((intptr_t) h, fileFlags & O_APPEND)) < 0)
-		CloseHandle(h);			/* will not affect errno */
-	else if (fileFlags & (O_TEXT | O_BINARY) &&
-			 _setmode(fd, fileFlags & (O_TEXT | O_BINARY)) < 0)
-	{
-		_close(fd);
-		return -1;
-	}
-
-	return fd;
-}
-
-FILE *
-pgwin32_fopen(const char *fileName, const char *mode)
-{
-	int			openmode = 0;
-	int			fd;
-
-	if (strstr(mode, "r+"))
-		openmode |= O_RDWR;
-	else if (strchr(mode, 'r'))
-		openmode |= O_RDONLY;
-	if (strstr(mode, "w+"))
-		openmode |= O_RDWR | O_CREAT | O_TRUNC;
-	else if (strchr(mode, 'w'))
-		openmode |= O_WRONLY | O_CREAT | O_TRUNC;
-	if (strchr(mode, 'a'))
-		openmode |= O_WRONLY | O_CREAT | O_APPEND;
-
-	if (strchr(mode, 'b'))
-		openmode |= O_BINARY;
-	if (strchr(mode, 't'))
-		openmode |= O_TEXT;
-
-	fd = pgwin32_open(fileName, openmode);
-	if (fd == -1)
-		return NULL;
-	return _fdopen(fd, mode);
-}
-
-#endif
-- 
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