diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/fcntl.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/fcntl.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/fcntl.c b/sysdeps/unix/sysv/linux/fcntl.c new file mode 100644 index 0000000000..33651d3c10 --- /dev/null +++ b/sysdeps/unix/sysv/linux/fcntl.c @@ -0,0 +1,60 @@ +/* Copyright (C) 2000, 2002, 2003 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 <assert.h> +#include <errno.h> +#include <fcntl.h> +#include <stdarg.h> + +#include <sysdep-cancel.h> +#include <sys/syscall.h> + + +int +__fcntl_nocancel (int fd, int cmd, void *arg) +{ + return INLINE_SYSCALL (fcntl, 3, fd, cmd, arg); +} + + +int +__libc_fcntl (int fd, int cmd, ...) +{ + va_list ap; + void *arg; + + va_start (ap, cmd); + arg = va_arg (ap, void *); + va_end (ap); + + if (SINGLE_THREAD_P || cmd != F_SETLKW) + return __fcntl_nocancel (fd, cmd, arg); + + int oldtype = LIBC_CANCEL_ASYNC (); + + int result = __fcntl_nocancel (fd, cmd, arg); + + LIBC_CANCEL_RESET (oldtype); + + return result; +} +libc_hidden_def (__libc_fcntl) + +weak_alias (__libc_fcntl, __fcntl) +libc_hidden_weak (__fcntl) +weak_alias (__libc_fcntl, fcntl) |