From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Feb 1995 01:27:10 +0000 Subject: initial import --- hurd/intern-fd.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 hurd/intern-fd.c (limited to 'hurd/intern-fd.c') diff --git a/hurd/intern-fd.c b/hurd/intern-fd.c new file mode 100644 index 0000000000..fe7424b9bc --- /dev/null +++ b/hurd/intern-fd.c @@ -0,0 +1,50 @@ +/* Copyright (C) 1994 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include +#include + +/* Allocate a new file descriptor and install PORT in it. FLAGS are as for + `open'; only O_IGNORE_CTTY is meaningful. + + If the descriptor table is full, set errno, and return -1. + If DEALLOC is nonzero, deallocate PORT first. */ +int +_hurd_intern_fd (io_t port, int flags, int dealloc) +{ + int fd; + struct hurd_fd *d; + + HURD_CRITICAL_BEGIN; + d = _hurd_alloc_fd (&fd, 0); + if (d != NULL) + { + _hurd_port2fd (d, port, flags); + __spin_unlock (&d->port.lock); + } + HURD_CRITICAL_END; + + if (d == NULL) + { + if (dealloc) + __mach_port_deallocate (__mach_task_self (), port); + return -1; + } + + return fd; +} -- cgit v1.2.3