~drizzle-trunk/drizzle/development

/* Copyright (C) 2000 MySQL AB

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; version 2 of the License.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#include "mysys/mysys_priv.h"

#include "mysys/mysys_err.h"

#include "my_dir.h"

#include <errno.h>

#include <stdlib.h>

#include <string.h>

/*

  Open a file

  SYNOPSIS

    my_open()

      FileName	Fully qualified file name

      Flags	Read | write

      MyFlags	Special flags

  RETURN VALUE

    File descriptor

*/

File my_open(const char *FileName, int Flags, myf MyFlags)

				/* Path-name of file */

				/* Read | write .. */

				/* Special flags */

{

  File fd;

#if !defined(NO_OPEN_3)

  fd = open(FileName, Flags, my_umask);	/* Normal unix */

#else

  fd = open((char *) FileName, Flags);

#endif

  return(my_register_filename(fd, FileName, EE_FILENOTFOUND, MyFlags));

} /* my_open */

/*

  Close a file

  SYNOPSIS

    my_close()

      fd	File sescriptor

      myf	Special Flags

*/

int my_close(File fd, myf MyFlags)

{

  int err;

  do

  {

    err= close(fd);

  } while (err == -1 && errno == EINTR);

  if (err)

  {

    my_errno=errno;

    if (MyFlags & (MY_FAE | MY_WME))

      my_error(EE_BADCLOSE, MYF(ME_BELL+ME_WAITTANG), "unknown", errno);

  }

  my_file_opened--;

  return(err);

} /* my_close */

/*

  TODO: Get rid of

  SYNOPSIS

    my_register_filename()

    fd			   File number opened, -1 if error on open

    FileName		   File name

    type_file_type	   How file was created

    error_message_number   Error message number if caller got error (fd == -1)

    MyFlags		   Flags for my_close()

  RETURN

    -1   error

     #   Filenumber

*/

File my_register_filename(File fd, const char *FileName, uint32_t error_message_number, myf MyFlags)

{

  if ((int) fd >= 0)

  {

    my_file_opened++;

    my_file_total_opened++;

    return fd;

  }

  else

    my_errno= errno;

  if (MyFlags & (MY_FFNF | MY_FAE | MY_WME))

  {

    if (my_errno == EMFILE)

      error_message_number= EE_OUT_OF_FILERESOURCES;

    my_error(error_message_number, MYF(ME_BELL+ME_WAITTANG),

             FileName, my_errno);

  }

  return -1;

}