/* * Copyright (c) 1982, 1986, 1989, 1993, 1994 * 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. * 3. 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. * * @(#)wait.h 8.2 (Berkeley) 7/10/94 * $FreeBSD: src/sys/sys/wait.h,v 1.11 1999/12/29 04:24:50 peter Exp $ */ #ifndef _SYS_WAIT_H_ #define _SYS_WAIT_H_ #include <sys/cdefs.h> #include <machine/stdint.h> /* * This file holds definitions relevant to the wait4 system call * and the alternate interfaces that use it (wait, wait3, waitpid). */ /* * Macros to test the exit status returned by wait * and extract the relevant values. */ #if __BSD_VISIBLE #define WCOREFLAG 0200 #endif #define _W_INT(i) (i) #define _WSTATUS(x) (_W_INT(x) & 0177) #define _WSTOPPED 0177 /* _WSTATUS if process is stopped */ #define WIFSTOPPED(x) (_WSTATUS(x) == _WSTOPPED) #define WIFCONTINUED(x) (x == 19) /* 19 == SIGCONT */ #define WIFEXITED(x) (_WSTATUS(x) == 0) #define WIFSIGNALED(x) (!WIFSTOPPED(x) && !WIFCONTINUED(x) && !WIFEXITED(x)) #define WSTOPSIG(x) (_W_INT(x) >> 8) #define WTERMSIG(x) (_WSTATUS(x)) #define WEXITSTATUS(x) (_W_INT(x) >> 8) #if __BSD_VISIBLE #define WCOREDUMP(x) (_W_INT(x) & WCOREFLAG) #define W_EXITCODE(ret, sig) ((ret) << 8 | (sig)) #define W_STOPCODE(sig) ((sig) << 8 | _WSTOPPED) #endif /* * Option bits for the third argument of wait4. WNOHANG causes the * wait to not hang if there are no stopped or terminated processes, rather * returning an error indication in this case (pid==0). WUNTRACED * indicates that the caller should receive status about untraced children * which stop due to signals. If children are stopped and a wait without * this option is done, it is as though they were still running... nothing * about them is returned. */ #define WNOHANG 0x0001 /* don't hang in wait */ #define WUNTRACED 0x0002 /* tell about stopped, untraced children */ #define WCONTINUED 0x0004 /* Report a job control continued process. */ #define WSTOPPED WUNTRACED #define WNOWAIT 0x0008 #define WEXITED 0x0010 #define WTRAPPED 0x0020 #if __BSD_VISIBLE #define WLINUXCLONE 0x80000000 /* wait for kthread spawned from linux_clone */ /* * Tokens for special values of the "pid" parameter to wait4. */ #define WAIT_ANY (-1) /* any process */ #define WAIT_MYPGRP 0 /* any process in my process group */ #endif /* __BSD_VISIBLE */ #ifndef _ID_T_DECLARED #define _ID_T_DECLARED typedef __int64_t id_t; /* general id, can hold gid/pid/uid_t */ #endif #ifndef _IDTYPE_T_DECLARED #define _IDTYPE_T_DECLARED /* SEE ALSO SYS/PROCCTL.H */ typedef enum #if __BSD_VISIBLE idtype #endif { /* * These names were mostly lifted from Solaris source code and * still use Solaris style naming to avoid breaking any * OpenSolaris code which has been ported to FreeBSD/DragonFly. * There is no clear DragonFly counterpart for all of the names, but * some have a clear correspondence to DragonFly entities. * * The numerical values are kept synchronized with the Solaris * values. */ P_PID, /* A process identifier. */ P_PPID, /* A parent process identifier. */ P_PGID, /* A process group identifier. */ P_SID, /* A session identifier. */ P_CID, /* A scheduling class identifier. */ P_UID, /* A user identifier. */ P_GID, /* A group identifier. */ P_ALL, /* All processes. */ P_LWPID, /* An LWP identifier. */ P_TASKID, /* A task identifier. */ P_PROJID, /* A project identifier. */ P_POOLID, /* A pool identifier. */ P_JAILID, /* A zone identifier. */ P_CTID, /* A (process) contract identifier. */ P_CPUID, /* CPU identifier. */ P_PSETID /* Processor set identifier. */ } idtype_t; /* The type of id_t we are using. */ #endif #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL) #include <sys/_siginfo.h> #ifndef _PID_T_DECLARED typedef __pid_t pid_t; /* process id */ #define _PID_T_DECLARED #endif __BEGIN_DECLS pid_t wait(int *); pid_t waitpid(pid_t, int *, int); #if __POSIX_VISIBLE >= 200112 int waitid(idtype_t, id_t, siginfo_t *, int); #endif #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 700) struct rusage; struct __wrusage; #endif #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 600) pid_t wait3(int *, int, struct rusage *); #endif #if __BSD_VISIBLE pid_t wait4(pid_t, int *, int, struct rusage *); pid_t wait6(idtype_t, id_t, int *, int, struct __wrusage *, siginfo_t *); #endif __END_DECLS #endif #endif
