|  | /* Copyright (C) 1991, 1995, 1996, 1997, 2002 Free Software Foundation, Inc. | 
|  | This file is part of the GNU C Library. | 
|  |  | 
|  | The GNU C Library is free software; you can redistribute it and/or | 
|  | modify it under the terms of the GNU Lesser General Public | 
|  | License as published by the Free Software Foundation; either | 
|  | version 2.1 of the License, or (at your option) any later version. | 
|  |  | 
|  | The GNU C 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 | 
|  | Lesser General Public License for more details. | 
|  |  | 
|  | You should have received a copy of the GNU Lesser General Public | 
|  | License along with the GNU C Library; if not, write to the Free | 
|  | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | 
|  | 02111-1307 USA.  */ | 
|  |  | 
|  | #include <sysdep.h> | 
|  | #include <errno.h> | 
|  | #include <unistd.h> | 
|  | #include <stddef.h> | 
|  | #include <ros/syscall.h> | 
|  | #include <sys/user_fd.h> | 
|  | #include <sys/close_cb.h> | 
|  |  | 
|  | int __close(int fd) | 
|  | { | 
|  | struct close_cb *cb = close_callbacks; | 
|  |  | 
|  | /* Another thread could be publishing a new callback to the front of the | 
|  | * list concurrently.  We'll miss that callback.  They to handle this, | 
|  | * usually by making sure their CB is registered before using FDs. */ | 
|  | while (cb) { | 
|  | cb->func(fd); | 
|  | cb = cb->next; | 
|  | } | 
|  | if (fd >= USER_FD_BASE) | 
|  | return glibc_close_helper(fd); | 
|  | else | 
|  | return ros_syscall(SYS_close, fd, 0, 0, 0, 0, 0); | 
|  | } | 
|  | libc_hidden_def (__close) | 
|  | weak_alias (__close, close) |