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hurd/fd-close.c
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Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
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/* Copyright (C) 1994-2026 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, see <https://www.gnu.org/licenses/>. */ #include <hurd/fd.h> error_t _hurd_fd_close (struct hurd_fd *fd) { error_t err; HURD_CRITICAL_BEGIN; __spin_lock (&fd->port.lock); if (fd->port.port == MACH_PORT_NULL) { __spin_unlock (&fd->port.lock); err = EBADF; } else { /* Clear the descriptor's port cells. This deallocates the ports if no one else is still using them. */ _hurd_port_set (&fd->ctty, MACH_PORT_NULL); _hurd_port_locked_set (&fd->port, MACH_PORT_NULL); err = 0; } HURD_CRITICAL_END; return err; }