diff options
author | Joel Sherrill <joel.sherrill@oarcorp.com> | 2012-03-08 07:25:21 -0600 |
---|---|---|
committer | Joel Sherrill <joel.sherrill@oarcorp.com> | 2012-03-08 07:25:21 -0600 |
commit | e2d2bf579b8d9ac67c1fdf0ad419b22860b93b35 (patch) | |
tree | 4f285040086226090aa9f664e011ffd8ced0a03a /freebsd/sys/sigio.h | |
parent | Add wish list for freebsd-to-rtems.py (diff) | |
download | rtems-libbsd-e2d2bf579b8d9ac67c1fdf0ad419b22860b93b35.tar.bz2 |
Move rtems/freebsd to freebsd and contrib to freebsd/contrib
Diffstat (limited to 'freebsd/sys/sigio.h')
-rw-r--r-- | freebsd/sys/sigio.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/freebsd/sys/sigio.h b/freebsd/sys/sigio.h new file mode 100644 index 00000000..dc29d948 --- /dev/null +++ b/freebsd/sys/sigio.h @@ -0,0 +1,67 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)filedesc.h 8.1 (Berkeley) 6/2/93 + * $FreeBSD$ + */ + +#ifndef _SYS_SIGIO_HH_ +#define _SYS_SIGIO_HH_ + +/* + * This structure holds the information needed to send a SIGIO or + * a SIGURG signal to a process or process group when new data arrives + * on a device or socket. The structure is placed on an SLIST belonging + * to the proc or pgrp so that the entire list may be revoked when the + * process exits or the process group disappears. + * + * (c) const + * (pg) locked by either the process or process group lock + */ +struct sigio { + union { + struct proc *siu_proc; /* (c) process to receive SIGIO/SIGURG */ + struct pgrp *siu_pgrp; /* (c) process group to receive ... */ + } sio_u; + SLIST_ENTRY(sigio) sio_pgsigio; /* (pg) sigio's for process or group */ + struct sigio **sio_myref; /* (c) location of the pointer that holds + * the reference to this structure */ + struct ucred *sio_ucred; /* (c) current credentials */ + pid_t sio_pgid; /* (c) pgid for signals */ +}; +#define sio_proc sio_u.siu_proc +#define sio_pgrp sio_u.siu_pgrp + +SLIST_HEAD(sigiolst, sigio); + +pid_t fgetown(struct sigio **sigiop); +int fsetown(pid_t pgid, struct sigio **sigiop); +void funsetown(struct sigio **sigiop); +void funsetownlst(struct sigiolst *sigiolst); + +#endif /* _SYS_SIGIO_HH_ */ |