LCOM1920-T02G10

/*        $NetBSD: spawn.h,v 1.5 2014/09/05 05:46:54 matt Exp $        */

/*-

 * Copyright (c) 2008 Ed Schouten <ed@FreeBSD.org>

 * 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.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.

 *

 * $FreeBSD: src/include/spawn.h,v 1.3.2.1.4.1 2010/06/14 02:09:06 kensmith Exp $

 */

#ifndef _SYS_SPAWN_H_

#define _SYS_SPAWN_H_

#include <sys/cdefs.h>

#include <sys/featuretest.h>

#include <sys/types.h>

#include <sys/sigtypes.h>

#include <sys/signal.h>

#include <sys/sched.h>

struct posix_spawnattr {

        short                        sa_flags;

        pid_t                        sa_pgroup;

        struct sched_param        sa_schedparam;

        int                        sa_schedpolicy;

        sigset_t                sa_sigdefault;

        sigset_t                sa_sigmask;

};

enum fae_action { FAE_OPEN, FAE_DUP2, FAE_CLOSE };

typedef struct posix_spawn_file_actions_entry {

        enum fae_action fae_action;

        int fae_fildes;

        union {

                struct {

                        char *path;

#define fae_path        fae_data.open.path

                        int oflag;

#define fae_oflag        fae_data.open.oflag

                        mode_t mode;

#define fae_mode        fae_data.open.mode

                } open;

                struct {

                        int newfildes;

#define fae_newfildes        fae_data.dup2.newfildes

                } dup2;

        } fae_data;

} posix_spawn_file_actions_entry_t;

struct posix_spawn_file_actions {

        unsigned int size;        /* size of fae array */

        unsigned int len;        /* how many slots are used */

        posix_spawn_file_actions_entry_t *fae;

};

typedef struct posix_spawnattr                posix_spawnattr_t;

typedef struct posix_spawn_file_actions        posix_spawn_file_actions_t;

#define POSIX_SPAWN_RESETIDS                0x01

#define POSIX_SPAWN_SETPGROUP                0x02

#define POSIX_SPAWN_SETSCHEDPARAM        0x04

#define POSIX_SPAWN_SETSCHEDULER        0x08

#define POSIX_SPAWN_SETSIGDEF                0x10

#define POSIX_SPAWN_SETSIGMASK                0x20

#ifdef _NETBSD_SOURCE

/*

 * With this flag set, the kernel part of posix_spawn will not try to

 * maximize parallelism, but instead the parent will wait for the child

 * process to complete all file/scheduler actions and report back errors

 * from that via the return value of the posix_spawn syscall. This is

 * usefull for testing, as it can verify the generated error codes and

 * match to the supposedly triggered failures.

 * In general, the kernel will return from the posix_spawn syscall as

 * early as possible, as soon as creating the new process is known to

 * work. Errors might either be reported back via the return value in

 * the parent, or (less explicit) by an error exit of the child

 * process. Our test cases deal with both behaviours in the general

 * case, but request the POSIX_SPAWN_RETURNERROR for some tests.

 */

#define POSIX_SPAWN_RETURNERROR                0x40

#endif

#endif /* !_SYS_SPAWN_H_ */