1 ##ˆl–Ðz¾”*ClÊq@‚àCq¦ÔÅ£É ƒpL³Å¿ÇY#/* Copyright (C) 1991-2021 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 . */ /* * POSIX Standard: 3.2.1 Wait for Process Termination */ #ifndef _SYS_WAIT_H #define _SYS_WAIT_H 1 #include __BEGIN_DECLS #include #ifndef __pid_t_defined typedef __pid_t pid_t; # define __pid_t_defined #endif #if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 # include #endif #if defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K8 /* Some older standards require the contents of struct rusage to be defined here. */ # include #endif /* These macros could also be defined in . */ #if !defined _STDLIB_H || (!defined __USE_XOPEN && !defined __USE_XOPEN2K8) /* This will define the `W*' macros for the flag bits to `waitpid', `wait3', and `wait4'. */ # include /* This will define all the `__W*' macros. */ # include # define WEXITSTATUS(status) __WEXITSTATUS (status) # define WTERMSIG(status) __WTERMSIG (status) # define WSTOPSIG(status) __WSTOPSIG (status) # define WIFEXITED(status) __WIFEXITED (status) # define WIFSIGNALED(status) __WIFSIGNALED (status) # define WIFSTOPPED(status) __WIFSTOPPED (status) # ifdef __WIFCONTINUED # define WIFCONTINUED(status) __WIFCONTINUED (status) # endif #endif /* not included. */ #ifdef __USE_MISC # define WCOREFLAG __WCOREFLAG # define WCOREDUMP(status) __WCOREDUMP (status) # define W_EXITCODE(ret, sig) __W_EXITCODE (ret, sig) # define W_STOPCODE(sig) __W_STOPCODE (sig) #endif /* The following values are used by the `waitid' function. */ #if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 typedef enum { P_ALL, /* Wait for any child. */ P_PID, /* Wait for specified process. */ P_PGID /* Wait for members of process group. */ } idtype_t; #endif /* Wait for a child to die. When one does, put its status in *STAT_LOC and return its process ID. For errors, return (pid_t) -1. This function is a cancellation point and therefore not marked with __THROW. */ extern __pid_t wait (int *__stat_loc); #ifdef __USE_MISC /* Special values for the PID argument to `waitpid' and `wait4'. */ # define WAIT_ANY (-1) /* Any process. */ # define WAIT_MYPGRP 0 /* Any process in my process group. */ #endif /* Wait for a child matching PID to die. If PID is greater than 0, match any process whose process ID is PID. If PID is (pid_t) -1, match any process. If PID is (pid_t) 0, match any process with the same process group as the current process. If PID is less than -1, match any process whose process group is the absolute value of PID. If the WNOHANG bit is set in OPTIONS, and that child is not already dead, return (pid_t) 0. If successful, return PID and store the dead child's status in STAT_LOC. Return (pid_t) -1 for errors. If the WUNTRACED bit is set in OPTIONS, return status for stopped children; otherwise don't. This function is a cancellation point and therefore not marked with __THROW. */ extern __pid_t waitpid (__pid_t __pid, int *__stat_loc, int __options); #if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 # ifndef __id_t_defined typedef __id_t id_t; # define __id_t_defined # endif # include