mes/include/sys/wait.h

/* -*-comment-start: "//";comment-end:""-*-
 * GNU Mes --- Maxwell Equations of Software
 * Copyright © 2017,2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 *
 * This file is part of GNU Mes.
 *
 * GNU Mes is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or (at
 * your option) any later version.
 *
 * GNU Mes 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef __MES_SYS_WAIT_H
#define __MES_SYS_WAIT_H 1

#include <sys/resource.h>

#if SYSTEM_LIBC
#undef __MES_SYS_WAIT_H
#include_next <sys/wait.h>
#else // ! SYSTEM_LIBC

#ifndef __MES_PID_T
#define __MES_PID_T
typedef int pid_t;
#endif

#define	WNOHANG 1
#define W_EXITCODE(status, signal) ((status) << 8 | (signal))

pid_t waitpid (pid_t pid, int *status_ptr, int options);
pid_t wait (int *status_ptr);
pid_t wait4 (pid_t pid, int *wstatus, int options,
             struct rusage *rusage);

#endif // ! SYSTEM_LIBC

#endif // __MES_SYS_WAIT_H