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by brian
clean slate |
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/* Copyright (C) 2000 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include "mysys_priv.h" |
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#include "mysys_err.h" |
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#include <my_dir.h> |
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#include <errno.h> |
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612.2.6
by Monty Taylor
OpenSolaris builds. |
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#include <stdlib.h> |
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by brian
clean slate |
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/*
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Open a file
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SYNOPSIS
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my_open()
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FileName Fully qualified file name
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Flags Read | write
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MyFlags Special flags
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RETURN VALUE
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File descriptor
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*/
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File my_open(const char *FileName, int Flags, myf MyFlags) |
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/* Path-name of file */
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/* Read | write .. */
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/* Special flags */
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{
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File fd; |
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#if !defined(NO_OPEN_3)
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fd = open(FileName, Flags, my_umask); /* Normal unix */ |
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#else
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fd = open((char *) FileName, Flags); |
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#endif
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51.3.18
by Jay Pipes
Phase 5 - Remove DBUG from mysys |
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return(my_register_filename(fd, FileName, FILE_BY_OPEN, |
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by brian
clean slate |
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EE_FILENOTFOUND, MyFlags)); |
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} /* my_open */ |
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/*
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Close a file
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SYNOPSIS
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my_close()
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fd File sescriptor
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myf Special Flags
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*/
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int my_close(File fd, myf MyFlags) |
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{
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int err; |
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pthread_mutex_lock(&THR_LOCK_open); |
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do
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{
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err= close(fd); |
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} while (err == -1 && errno == EINTR); |
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if (err) |
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{
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my_errno=errno; |
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if (MyFlags & (MY_FAE | MY_WME)) |
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my_error(EE_BADCLOSE, MYF(ME_BELL+ME_WAITTANG),my_filename(fd),errno); |
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}
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if ((uint) fd < my_file_limit && my_file_info[fd].type != UNOPEN) |
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{
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477
by Monty Taylor
Removed my_free(). It turns out that it had been def'd to ignore the flags passed to it in the second arg anyway. Gotta love that. |
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free(my_file_info[fd].name); |
28.1.35
by Monty Taylor
Removed all references to THREAD. |
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#if !defined(HAVE_PREAD)
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1
by brian
clean slate |
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pthread_mutex_destroy(&my_file_info[fd].mutex); |
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#endif
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my_file_info[fd].type = UNOPEN; |
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}
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my_file_opened--; |
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pthread_mutex_unlock(&THR_LOCK_open); |
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51.3.18
by Jay Pipes
Phase 5 - Remove DBUG from mysys |
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return(err); |
1
by brian
clean slate |
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} /* my_close */ |
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/*
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Register file in my_file_info[]
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SYNOPSIS
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my_register_filename()
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fd File number opened, -1 if error on open
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FileName File name
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type_file_type How file was created
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error_message_number Error message number if caller got error (fd == -1)
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MyFlags Flags for my_close()
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RETURN
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-1 error
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# Filenumber
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*/
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File my_register_filename(File fd, const char *FileName, enum file_type |
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482
by Brian Aker
Remove uint. |
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type_of_file, uint32_t error_message_number, myf MyFlags) |
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by brian
clean slate |
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{
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if ((int) fd >= 0) |
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{
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if ((uint) fd >= my_file_limit) |
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{
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28.1.35
by Monty Taylor
Removed all references to THREAD. |
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#if !defined(HAVE_PREAD)
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by brian
clean slate |
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my_errno= EMFILE; |
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#else
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thread_safe_increment(my_file_opened,&THR_LOCK_open); |
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51.3.18
by Jay Pipes
Phase 5 - Remove DBUG from mysys |
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return(fd); /* safeguard */ |
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by brian
clean slate |
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#endif
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}
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else
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{
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pthread_mutex_lock(&THR_LOCK_open); |
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if ((my_file_info[fd].name = (char*) my_strdup(FileName,MyFlags))) |
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{
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my_file_opened++; |
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my_file_total_opened++; |
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my_file_info[fd].type = type_of_file; |
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28.1.35
by Monty Taylor
Removed all references to THREAD. |
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#if !defined(HAVE_PREAD)
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by brian
clean slate |
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pthread_mutex_init(&my_file_info[fd].mutex,MY_MUTEX_INIT_FAST); |
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#endif
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pthread_mutex_unlock(&THR_LOCK_open); |
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51.3.18
by Jay Pipes
Phase 5 - Remove DBUG from mysys |
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return(fd); |
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by brian
clean slate |
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}
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pthread_mutex_unlock(&THR_LOCK_open); |
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my_errno= ENOMEM; |
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}
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(void) my_close(fd, MyFlags); |
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}
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else
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my_errno= errno; |
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if (MyFlags & (MY_FFNF | MY_FAE | MY_WME)) |
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{
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if (my_errno == EMFILE) |
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error_message_number= EE_OUT_OF_FILERESOURCES; |
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my_error(error_message_number, MYF(ME_BELL+ME_WAITTANG), |
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FileName, my_errno); |
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}
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51.3.18
by Jay Pipes
Phase 5 - Remove DBUG from mysys |
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return(-1); |
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by brian
clean slate |
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}
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#ifdef EXTRA_DEBUG
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void my_print_open_files(void) |
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{
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if (my_file_opened | my_stream_opened) |
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{
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482
by Brian Aker
Remove uint. |
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uint32_t i; |
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by brian
clean slate |
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for (i= 0 ; i < my_file_limit ; i++) |
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{
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if (my_file_info[i].type != UNOPEN) |
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{
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fprintf(stderr, EE(EE_FILE_NOT_CLOSED), my_file_info[i].name, i); |
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fputc('\n', stderr); |
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}
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}
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}
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}
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#endif
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