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Diffstat (limited to 'sysroot/usr/include/sys/wait.h')
| -rw-r--r-- | sysroot/usr/include/sys/wait.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/sysroot/usr/include/sys/wait.h b/sysroot/usr/include/sys/wait.h new file mode 100644 index 0000000..fe10357 --- /dev/null +++ b/sysroot/usr/include/sys/wait.h @@ -0,0 +1,182 @@ +/* Copyright (C) 1991-1994,1996-2001,2003,2004,2005,2007 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* + * POSIX Standard: 3.2.1 Wait for Process Termination <sys/wait.h> + */ + +#ifndef _SYS_WAIT_H +#define _SYS_WAIT_H 1 + +#include <features.h> + +__BEGIN_DECLS + +#include <signal.h> +#include <sys/resource.h> + +/* These macros could also be defined in <stdlib.h>. */ +#if !defined _STDLIB_H || !defined __USE_XOPEN +/* This will define the `W*' macros for the flag + bits to `waitpid', `wait3', and `wait4'. */ +# include <bits/waitflags.h> + +# ifdef __USE_BSD + +/* Lots of hair to allow traditional BSD use of `union wait' + as well as POSIX.1 use of `int' for the status word. */ + +# if defined __GNUC__ && !defined __cplusplus +# define __WAIT_INT(status) \ + (__extension__ (((union { __typeof(status) __in; int __i; }) \ + { .__in = (status) }).__i)) +# else +# define __WAIT_INT(status) (*(__const int *) &(status)) +# endif + +/* This is the type of the argument to `wait'. The funky union + causes redeclarations with ether `int *' or `union wait *' to be + allowed without complaint. __WAIT_STATUS_DEFN is the type used in + the actual function definitions. */ + +# if !defined __GNUC__ || __GNUC__ < 2 || defined __cplusplus +# define __WAIT_STATUS void * +# define __WAIT_STATUS_DEFN void * +# else +/* This works in GCC 2.6.1 and later. */ +typedef union + { + union wait *__uptr; + int *__iptr; + } __WAIT_STATUS __attribute__ ((__transparent_union__)); +# define __WAIT_STATUS_DEFN int * +# endif + +# else /* Don't use BSD. */ + +# define __WAIT_INT(status) (status) +# define __WAIT_STATUS int * +# define __WAIT_STATUS_DEFN int * + +# endif /* Use BSD. */ + +/* This will define all the `__W*' macros. */ +# include <bits/waitstatus.h> + +# define WEXITSTATUS(status) __WEXITSTATUS(__WAIT_INT(status)) +# define WTERMSIG(status) __WTERMSIG(__WAIT_INT(status)) +# define WSTOPSIG(status) __WSTOPSIG(__WAIT_INT(status)) +# define WIFEXITED(status) __WIFEXITED(__WAIT_INT(status)) +# define WIFSIGNALED(status) __WIFSIGNALED(__WAIT_INT(status)) +# define WIFSTOPPED(status) __WIFSTOPPED(__WAIT_INT(status)) +# ifdef __WIFCONTINUED +# define WIFCONTINUED(status) __WIFCONTINUED(__WAIT_INT(status)) +# endif +#endif /* <stdlib.h> not included. */ + +#ifdef __USE_BSD +# define WCOREFLAG __WCOREFLAG +# define WCOREDUMP(status) __WCOREDUMP(__WAIT_INT(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_SVID || defined __USE_XOPEN +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 (__WAIT_STATUS __stat_loc); + +#ifdef __USE_BSD +/* 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_SVID || defined __USE_XOPEN +# define __need_siginfo_t +# include <bits/siginfo.h> +/* Wait for a childing matching IDTYPE and ID to change the status and + place appropriate information in *INFOP. + If IDTYPE is P_PID, match any process whose process ID is ID. + If IDTYPE is P_PGID, match any process whose process group is ID. + If IDTYPE is P_ALL, match any process. + If the WNOHANG bit is set in OPTIONS, and that child + is not already dead, clear *INFOP and return 0. If successful, store + exit code and status in *INFOP. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int waitid (idtype_t __idtype, __id_t __id, siginfo_t *__infop, + int __options); +#endif + +#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED +/* This being here makes the prototypes valid whether or not + we have already included <sys/resource.h> to define `struct rusage'. */ +struct rusage; + +/* Wait for a child to exit. When one does, put its status in *STAT_LOC and + return its process ID. For errors return (pid_t) -1. If USAGE is not + nil, store information about the child's resource usage there. If the + WUNTRACED bit is set in OPTIONS, return status for stopped children; + otherwise don't. */ +extern __pid_t wait3 (__WAIT_STATUS __stat_loc, int __options, + struct rusage * __usage) __THROW; +#endif + +#ifdef __USE_BSD +/* PID is like waitpid. Other args are like wait3. */ +extern __pid_t wait4 (__pid_t __pid, __WAIT_STATUS __stat_loc, int __options, + struct rusage *__usage) __THROW; +#endif /* Use BSD. */ + + +__END_DECLS + +#endif /* sys/wait.h */ |