PSARC 2006/659 fork extensions

6497356 fork extensions

--HG--
rename : usr/src/lib/libc/amd64/sys/forkall.s => usr/src/lib/libc/amd64/sys/forkallx.s
rename : usr/src/lib/libc/amd64/sys/fork1.s => usr/src/lib/libc/amd64/sys/forkx.s
rename : usr/src/lib/libc/amd64/sys/vfork.s => usr/src/lib/libc/amd64/sys/vforkx.s
rename : usr/src/lib/libc/i386/sys/forkall.s => usr/src/lib/libc/i386/sys/forkallx.s
rename : usr/src/lib/libc/i386/sys/fork1.s => usr/src/lib/libc/i386/sys/forkx.s
rename : usr/src/lib/libc/i386/sys/vfork.s => usr/src/lib/libc/i386/sys/vforkx.s
rename : usr/src/lib/libc/sparc/sys/forkall.s => usr/src/lib/libc/sparc/sys/forkallx.s
rename : usr/src/lib/libc/sparc/sys/fork1.s => usr/src/lib/libc/sparc/sys/forkx.s
rename : usr/src/lib/libc/sparc/sys/vfork.s => usr/src/lib/libc/sparc/sys/vforkx.s

1 files changed, 83 insertions, 0 deletions

diff --git a/usr/src/uts/common/sys/fork.h b/usr/src/uts/common/sys/fork.h
new file mode 100644
index 0000000000..2952bc505d
--- /dev/null
+++ b/usr/src/uts/common/sys/fork.h
@@ -0,0 +1,83 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_FORK_H
+#define	_SYS_FORK_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <sys/types.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
+
+#if !defined(_KERNEL)
+
+extern pid_t forkx(int);
+extern pid_t forkallx(int);
+extern pid_t vforkx(int);
+
+#if defined(__sparc)
+#pragma unknown_control_flow(vforkx)
+#endif
+
+#endif	/* !defined(_KERNEL) */
+
+/*
+ * The argument to any of the forkx() functions is a set of flags
+ * formed by or-ing together zero or more of the following flags.
+ * fork()/forkall()/vfork() are equivalent to the corresponding
+ * forkx()/forkallx()/vforkx() functions with a zero argument.
+ */
+
+/*
+ * Do not post a SIGCHLD signal to the parent when the child terminates,
+ * regardless of the disposition of the SIGCHLD signal in the parent.
+ * SIGCHLD signals are still possible for job control stop and continue
+ * actions (CLD_STOPPED, CLD_CONTINUED) if the parent has requested them.
+ */
+#define	FORK_NOSIGCHLD	0x0001
+
+/*
+ * Do not allow wait-for-multiple-pids by the parent, as in waitid(P_ALL)
+ * or waitid(P_PGID), to reap the child and do not allow the child to
+ * be reaped automatically due the disposition of the SIGCHLD signal
+ * being set to be ignored.  Only a specific wait for the child, as
+ * in waitid(P_PID, pid), is allowed and it is required, else when
+ * the child exits it will remain a zombie until the parent exits.
+ */
+#define	FORK_WAITPID	0x0002
+
+#endif	/* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_FORK_H */