X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/43866e378188c25dd1e2208016ab3cbeb086ae6c..94ff46dc2849db4d43eaaf144872decc522aafb4:/bsd/sys/wait.h diff --git a/bsd/sys/wait.h b/bsd/sys/wait.h index ae0aee701..498749fba 100644 --- a/bsd/sys/wait.h +++ b/bsd/sys/wait.h @@ -1,17 +1,20 @@ /* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. - * + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ + * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in - * compliance with the License. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. - * + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. + * + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, @@ -19,8 +22,8 @@ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. - * - * @APPLE_LICENSE_HEADER_END@ + * + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ /* @@ -57,9 +60,12 @@ * * @(#)wait.h 8.2 (Berkeley) 7/10/94 */ - + #ifndef _SYS_WAIT_H_ -#define _SYS_WAIT_H_ +#define _SYS_WAIT_H_ + +#include +#include /* * This file holds definitions relevent to the wait4 system call @@ -67,31 +73,41 @@ */ /* - * Macros to test the exit status returned by wait - * and extract the relevant values. + * [XSI] The type idtype_t shall be defined as an enumeration type whose + * possible values shall include at least P_ALL, P_PID, and P_PGID. */ -#ifdef _POSIX_SOURCE -#define _W_INT(i) (i) -#else -#define _W_INT(w) (*(int *)&(w)) /* convert union wait to int */ -#define WCOREFLAG 0200 - -#endif /* _POSIX_SOURCE */ - -#define _WSTATUS(x) (_W_INT(x) & 0177) -#define _WSTOPPED 0177 /* _WSTATUS if process is stopped */ -#define WIFSTOPPED(x) (_WSTATUS(x) == _WSTOPPED) -#define WSTOPSIG(x) (_W_INT(x) >> 8) -#define WIFSIGNALED(x) (_WSTATUS(x) != _WSTOPPED && _WSTATUS(x) != 0) -#define WTERMSIG(x) (_WSTATUS(x)) -#define WIFEXITED(x) (_WSTATUS(x) == 0) -#define WEXITSTATUS(x) (_W_INT(x) >> 8) -#if !defined(_POSIX_SOURCE) -#define WCOREDUMP(x) (_W_INT(x) & WCOREFLAG) - -#define W_EXITCODE(ret, sig) ((ret) << 8 | (sig)) -#define W_STOPCODE(sig) ((sig) << 8 | _WSTOPPED) -#endif /* !defined(_POSIX_SOURCE) */ +typedef enum { + P_ALL, + P_PID, + P_PGID +} idtype_t; + +/* + * [XSI] The id_t and pid_t types shall be defined as described + * in + */ +#include +#include + +/* + * [XSI] The siginfo_t type shall be defined as described in + * [XSI] The rusage structure shall be defined as described in + * [XSI] Inclusion of the header may also make visible all + * symbols from and + * + * NOTE: This requirement is currently being satisfied by the direct + * inclusion of and , below. + * + * Software should not depend on the exposure of anything other + * than the types siginfo_t and struct rusage as a result of + * this inclusion. If you depend on any types or manifest + * values othe than siginfo_t and struct rusage from either of + * those files, you should explicitly include them yourself, as + * well, or in future releases your stware may not compile + * without modification. + */ +#include /* [XSI] for siginfo_t */ +#include /* [XSI] for struct rusage */ /* * Option bits for the third argument of wait4. WNOHANG causes the @@ -102,43 +118,96 @@ * this option is done, it is as though they were still running... nothing * about them is returned. */ -#define WNOHANG 1 /* don't hang in wait */ -#define WUNTRACED 2 /* tell about stopped, untraced children */ +#define WNOHANG 0x00000001 /* [XSI] no hang in wait/no child to reap */ +#define WUNTRACED 0x00000002 /* [XSI] notify on stop, untraced child */ -#if !defined(_POSIX_SOURCE) +/* + * Macros to test the exit status returned by wait + * and extract the relevant values. + */ +#if defined(_POSIX_C_SOURCE) && !defined(_DARWIN_C_SOURCE) +#define _W_INT(i) (i) +#else +#define _W_INT(w) (*(int *)&(w)) /* convert union wait to int */ +#define WCOREFLAG 0200 +#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ + +/* These macros are permited, as they are in the implementation namespace */ +#define _WSTATUS(x) (_W_INT(x) & 0177) +#define _WSTOPPED 0177 /* _WSTATUS if process is stopped */ + +/* + * [XSI] The header shall define the following macros for + * analysis of process status values + */ +#if __DARWIN_UNIX03 +#define WEXITSTATUS(x) ((_W_INT(x) >> 8) & 0x000000ff) +#else /* !__DARWIN_UNIX03 */ +#define WEXITSTATUS(x) (_W_INT(x) >> 8) +#endif /* !__DARWIN_UNIX03 */ +/* 0x13 == SIGCONT */ +#define WSTOPSIG(x) (_W_INT(x) >> 8) +#define WIFCONTINUED(x) (_WSTATUS(x) == _WSTOPPED && WSTOPSIG(x) == 0x13) +#define WIFSTOPPED(x) (_WSTATUS(x) == _WSTOPPED && WSTOPSIG(x) != 0x13) +#define WIFEXITED(x) (_WSTATUS(x) == 0) +#define WIFSIGNALED(x) (_WSTATUS(x) != _WSTOPPED && _WSTATUS(x) != 0) +#define WTERMSIG(x) (_WSTATUS(x)) +#if (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) +#define WCOREDUMP(x) (_W_INT(x) & WCOREFLAG) + +#define W_EXITCODE(ret, sig) ((ret) << 8 | (sig)) +#define W_STOPCODE(sig) ((sig) << 8 | _WSTOPPED) +#endif /* (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) */ + +/* + * [XSI] The following symbolic constants shall be defined as possible + * values for the fourth argument to waitid(). + */ +/* WNOHANG already defined for wait4() */ +/* WUNTRACED defined for wait4() but not for waitid() */ +#define WEXITED 0x00000004 /* [XSI] Processes which have exitted */ +#if __DARWIN_UNIX03 +/* waitid() parameter */ +#define WSTOPPED 0x00000008 /* [XSI] Any child stopped by signal */ +#endif +#define WCONTINUED 0x00000010 /* [XSI] Any child stopped then continued */ +#define WNOWAIT 0x00000020 /* [XSI] Leave process returned waitable */ + + +#if (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) /* POSIX extensions and 4.2/4.3 compatability: */ /* * 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 */ +#define WAIT_ANY (-1) /* any process */ +#define WAIT_MYPGRP 0 /* any process in my process group */ #include /* * Deprecated: * Structure of the information in the status word returned by wait4. - * If w_stopval==WSTOPPED, then the second structure describes + * If w_stopval==_WSTOPPED, then the second structure describes * the information returned, else the first. */ union wait { - int w_status; /* used in syscall */ + int w_status; /* used in syscall */ /* * Terminated process status. */ struct { -#if BYTE_ORDER == LITTLE_ENDIAN - unsigned int w_Termsig:7, /* termination signal */ - w_Coredump:1, /* core dump indicator */ - w_Retcode:8, /* exit code if w_termsig==0 */ - w_Filler:16; /* upper bits filler */ +#if __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN + unsigned int w_Termsig:7, /* termination signal */ + w_Coredump:1, /* core dump indicator */ + w_Retcode:8, /* exit code if w_termsig==0 */ + w_Filler:16; /* upper bits filler */ #endif -#if BYTE_ORDER == BIG_ENDIAN - unsigned int w_Filler:16, /* upper bits filler */ - w_Retcode:8, /* exit code if w_termsig==0 */ - w_Coredump:1, /* core dump indicator */ - w_Termsig:7; /* termination signal */ +#if __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN + unsigned int w_Filler:16, /* upper bits filler */ + w_Retcode:8, /* exit code if w_termsig==0 */ + w_Coredump:1, /* core dump indicator */ + w_Termsig:7; /* termination signal */ #endif } w_T; /* @@ -147,40 +216,45 @@ union wait { * with the WUNTRACED option bit. */ struct { -#if BYTE_ORDER == LITTLE_ENDIAN - unsigned int w_Stopval:8, /* == W_STOPPED if stopped */ - w_Stopsig:8, /* signal that stopped us */ - w_Filler:16; /* upper bits filler */ +#if __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN + unsigned int w_Stopval:8, /* == W_STOPPED if stopped */ + w_Stopsig:8, /* signal that stopped us */ + w_Filler:16; /* upper bits filler */ #endif -#if BYTE_ORDER == BIG_ENDIAN - unsigned int w_Filler:16, /* upper bits filler */ - w_Stopsig:8, /* signal that stopped us */ - w_Stopval:8; /* == W_STOPPED if stopped */ +#if __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN + unsigned int w_Filler:16, /* upper bits filler */ + w_Stopsig:8, /* signal that stopped us */ + w_Stopval:8; /* == W_STOPPED if stopped */ #endif } w_S; }; -#define w_termsig w_T.w_Termsig -#define w_coredump w_T.w_Coredump -#define w_retcode w_T.w_Retcode -#define w_stopval w_S.w_Stopval -#define w_stopsig w_S.w_Stopsig +#define w_termsig w_T.w_Termsig +#define w_coredump w_T.w_Coredump +#define w_retcode w_T.w_Retcode +#define w_stopval w_S.w_Stopval +#define w_stopsig w_S.w_Stopsig -#define WSTOPPED _WSTOPPED -#endif /* !defined(_POSIX_SOURCE) */ +#endif /* (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) */ -#ifndef KERNEL -#include -#include +#if !(__DARWIN_UNIX03 - 0) +/* + * Stopped state value; cannot use waitid() parameter of the same name + * in the same scope + */ +#define WSTOPPED _WSTOPPED +#endif /* !__DARWIN_UNIX03 */ +#ifndef KERNEL __BEGIN_DECLS -struct rusage; /* forward declaration */ - -pid_t wait __P((int *)); -pid_t waitpid __P((pid_t, int *, int)); -#if !defined(_POSIX_SOURCE) -pid_t wait3 __P((int *, int, struct rusage *)); -pid_t wait4 __P((pid_t, int *, int, struct rusage *)); -#endif /* !defined(_POSIX_SOURCE) */ +pid_t wait(int *) __DARWIN_ALIAS_C(wait); +pid_t waitpid(pid_t, int *, int) __DARWIN_ALIAS_C(waitpid); +#ifndef _ANSI_SOURCE +int waitid(idtype_t, id_t, siginfo_t *, int) __DARWIN_ALIAS_C(waitid); +#endif /* !_ANSI_SOURCE */ +#if (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) +pid_t wait3(int *, int, struct rusage *); +pid_t wait4(pid_t, int *, int, struct rusage *); +#endif /* (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) */ __END_DECLS #endif #endif /* !_SYS_WAIT_H_ */