OpenSolaris Launch

1 files changed, 133 insertions, 0 deletions

diff --git a/usr/src/uts/common/sys/shm_impl.h b/usr/src/uts/common/sys/shm_impl.h
new file mode 100644
index 0000000000..f43fad4c87
--- /dev/null
+++ b/usr/src/uts/common/sys/shm_impl.h
@@ -0,0 +1,133 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (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 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef	_SYS_SHM_IMPL_H
+#define	_SYS_SHM_IMPL_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <sys/ipc_impl.h>
+#if defined(_KERNEL) || defined(_KMEMUSER)
+#include <sys/shm.h>
+#include <sys/avl.h>
+#include <sys/t_lock.h>
+#endif
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/*
+ * shmsys system call subcodes
+ */
+#define	SHMAT	0
+#define	SHMCTL	1
+#define	SHMDT	2
+#define	SHMGET	3
+#define	SHMIDS	4
+
+/*
+ *	There is a shared mem id data structure (shmid_ds) for each
+ *	segment in the system.
+ */
+#if defined(_KERNEL) || defined(_KMEMUSER)
+typedef struct kshmid {
+	kipc_perm_t	shm_perm;	/* operation permission struct */
+	size_t		shm_segsz;	/* size of segment in bytes */
+	struct anon_map	*shm_amp;	/* segment anon_map pointer */
+	ushort_t	shm_lkcnt;	/* number of times it is being locked */
+	pid_t		shm_lpid;	/* pid of last shmop */
+	pid_t		shm_cpid;	/* pid of creator */
+	ulong_t		shm_ismattch;	/* number of ISM attaches */
+	time_t		shm_atime;	/* last shmat time */
+	time_t		shm_dtime;	/* last shmdt time */
+	time_t		shm_ctime;	/* last change time */
+	struct sptinfo	*shm_sptinfo;	/* info about ISM segment */
+	struct seg	*shm_sptseg;	/* pointer to ISM segment */
+	long		shm_sptprot;	/* was reserved (still a "long") */
+} kshmid_t;
+
+/*
+ *	Segacct Flags.
+ */
+#define	SHMSA_ISM	1	/* uses shared page table */
+
+typedef struct sptinfo {
+	struct as	*sptas;		/* dummy as ptr. for spt segment */
+} sptinfo_t;
+
+/*
+ * Protected by p->p_lock
+ */
+typedef struct segacct {
+	avl_node_t	sa_tree;
+	caddr_t		sa_addr;
+	size_t		sa_len;
+	ulong_t		sa_flags;
+	kshmid_t	*sa_id;
+} segacct_t;
+
+/*
+ * Error codes for shmgetid().
+ */
+#define	SHMID_NONE	(-1)
+#define	SHMID_FREE	(-2)
+
+extern void shminit(void);
+extern void shmfork(struct proc *, struct proc *);
+extern void shmexit(struct proc *);
+extern int shmgetid(struct proc *, caddr_t);
+
+#endif	/* _KERNEL */
+
+#if defined(_SYSCALL32)
+/*
+ * LP64 view of the ILP32 shmid_ds structure
+ */
+struct shmid_ds32 {
+	struct ipc_perm32 shm_perm;	/* operation permission struct */
+	size32_t	shm_segsz;	/* size of segment in bytes */
+	caddr32_t	shm_amp;	/* segment anon_map pointer */
+	uint16_t	shm_lkcnt;	/* number of times it is being locked */
+	pid32_t		shm_lpid;	/* pid of last shmop */
+	pid32_t		shm_cpid;	/* pid of creator */
+	uint32_t	shm_nattch;	/* number of attaches */
+	uint32_t	shm_cnattch;	/* number of ISM attaches */
+	time32_t	shm_atime;	/* last shmat time */
+	int32_t		shm_pad1;	/* reserved for time_t expansion */
+	time32_t	shm_dtime;	/* last shmdt time */
+	int32_t		shm_pad2;	/* reserved for time_t expansion */
+	time32_t	shm_ctime;	/* last change time */
+	int32_t		shm_pad3;	/* reserved for time_t expansion */
+	int32_t		shm_pad4[4];	/* reserve area  */
+};
+#endif
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_SHM_IMPL_H */