1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_FORK_H 28 #define _SYS_FORK_H 29 30 #include <sys/types.h> 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 37 38 #if !defined(_KERNEL) 39 40 extern pid_t forkx(int); 41 extern pid_t forkallx(int); 42 extern pid_t vforkx(int) __RETURNS_TWICE; 43 44 #pragma unknown_control_flow(vforkx) 45 46 #endif /* !defined(_KERNEL) */ 47 48 /* 49 * The argument to any of the forkx() functions is a set of flags 50 * formed by or-ing together zero or more of the following flags. 51 * fork()/forkall()/vfork() are equivalent to the corresponding 52 * forkx()/forkallx()/vforkx() functions with a zero argument. 53 */ 54 55 /* 56 * Do not post a SIGCHLD signal to the parent when the child terminates, 57 * regardless of the disposition of the SIGCHLD signal in the parent. 58 * SIGCHLD signals are still possible for job control stop and continue 59 * actions (CLD_STOPPED, CLD_CONTINUED) if the parent has requested them. 60 */ 61 #define FORK_NOSIGCHLD 0x0001 62 63 /* 64 * Do not allow wait-for-multiple-pids by the parent, as in waitid(P_ALL) 65 * or waitid(P_PGID), to reap the child and do not allow the child to 66 * be reaped automatically due the disposition of the SIGCHLD signal 67 * being set to be ignored. Only a specific wait for the child, as 68 * in waitid(P_PID, pid), is allowed and it is required, else when 69 * the child exits it will remain a zombie until the parent exits. 70 */ 71 #define FORK_WAITPID 0x0002 72 73 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 74 75 #ifdef __cplusplus 76 } 77 #endif 78 79 #endif /* _SYS_FORK_H */ 80