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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA */
#define USES_TYPES
#include "mysys_priv.h"
#include "mysys_err.h"
#include <errno.h>
#if defined(MSDOS) || defined(__WIN__)
#include <share.h>
#endif
/* Open a file */
File my_open(const char *FileName, int Flags, myf MyFlags)
/* Path-name of file */
/* Read | write .. */
/* Special flags */
{
File fd;
DBUG_ENTER("my_open");
DBUG_PRINT("my",("Name: '%s' Flags: %d MyFlags: %d",
FileName, Flags, MyFlags));
#if defined(MSDOS) || defined(__WIN__)
if (Flags & O_SHARE)
fd = sopen((my_string) FileName, (Flags & ~O_SHARE) | O_BINARY, SH_DENYNO);
else
fd = open((my_string) FileName, Flags | O_BINARY);
#elif !defined(NO_OPEN_3)
fd = open(FileName, Flags, 0); /* Normal unix */
#else
fd = open((my_string) FileName, Flags);
#endif
if ((int) fd >= 0)
{
if ((int) fd >= MY_NFILE)
DBUG_RETURN(fd); /* safeguard */
pthread_mutex_lock(&THR_LOCK_open);
if ((my_file_info[fd].name = (char*) my_strdup(FileName,MyFlags)))
{
my_file_opened++;
my_file_info[fd].type = FILE_BY_OPEN;
pthread_mutex_unlock(&THR_LOCK_open);
DBUG_PRINT("exit",("fd: %d",fd));
DBUG_RETURN(fd);
}
pthread_mutex_unlock(&THR_LOCK_open);
(void) my_close(fd,MyFlags);
my_errno=ENOMEM;
}
else
my_errno=errno;
DBUG_PRINT("error",("Got error %d on open",my_errno));
if (MyFlags & (MY_FFNF | MY_FAE | MY_WME))
my_error(EE_FILENOTFOUND, MYF(ME_BELL+ME_WAITTANG), FileName,my_errno);
DBUG_RETURN(fd);
} /* my_open */
/* Close a file */
int my_close(File fd, myf MyFlags)
{
int err;
DBUG_ENTER("my_close");
DBUG_PRINT("my",("fd: %d MyFlags: %d",fd, MyFlags));
pthread_mutex_lock(&THR_LOCK_open);
if ((err = close(fd)) != 0)
{
my_errno=errno;
if (MyFlags & (MY_FAE | MY_WME))
my_error(EE_BADCLOSE, MYF(ME_BELL+ME_WAITTANG),my_filename(fd),errno);
}
if ((uint) fd < MY_NFILE && my_file_info[fd].type != UNOPEN)
{
my_file_opened--;
my_free(my_file_info[fd].name, MYF(0));
my_file_info[fd].type = UNOPEN;
}
pthread_mutex_unlock(&THR_LOCK_open);
DBUG_RETURN(err);
} /* my_close */
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