xnu-792.tar.gz

[apple/xnu.git] / bsd / sys / ipcs.h

diff --git a/bsd/sys/ipcs.h b/bsd/sys/ipcs.h
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+/*
+ * Copyright (c) 2004-2005 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ * 
+ * This 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,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * NOTE: Internal ipcs.h header; all interfaces are private; if you want this
+ * same information from your own program, popen(3) the ipcs(2) command and
+ * parse its output, or your program may not work on future OS releases.
+ */
+
+#ifndef _SYS_IPCS_H_
+#define _SYS_IPCS_H_
+
+#include <sys/appleapiopts.h>
+#include <sys/cdefs.h>
+
+#define        IPCS_MAGIC      0x00000001      /* Version */
+
+/*
+ * IPCS_command
+ *
+ * This is the IPCS command structure used for obtaining status about the
+ * System V IPC mechanisms.  All other operations are based on the per
+ * subsystem (shm, msg, ipc) *ctl entry point, which can be called once
+ * this information is known.
+ */
+
+struct IPCS_command {
+       int             ipcs_magic;     /* Magic number for struct layout */
+       int             ipcs_op;        /* Operation to perform */
+       int             ipcs_cursor;    /* Cursor for iteration functions */
+       int             ipcs_datalen;   /* Length of ipcs_data area */
+       void            *ipcs_data;     /* OP specific data */
+};
+
+#ifdef KERNEL_PRIVATE
+#include <machine/types.h>
+
+#if __DARWIN_ALIGN_NATURAL
+#pragma options align=natural
+#endif
+
+struct user_IPCS_command {
+       int             ipcs_magic;     /* Magic number for struct layout */
+       int             ipcs_op;        /* Operation to perform */
+       int             ipcs_cursor;    /* Cursor for iteration functions */
+       int             ipcs_datalen;   /* Length of ipcs_data area */
+       user_addr_t     ipcs_data;      /* OP specific data */
+};
+
+#if __DARWIN_ALIGN_NATURAL
+#pragma options align=reset
+#endif
+
+#endif /* KERNEL_PRIVATE */
+
+/*
+ * OP code values for 'ipcs_op'
+ */
+#define IPCS_SHM_CONF  0x00000001      /* Obtain shared memory config */
+#define IPCS_SHM_ITER  0x00000002      /* Iterate shared memory info */
+
+#define IPCS_SEM_CONF  0x00000010      /* Obtain semaphore config */
+#define IPCS_SEM_ITER  0x00000020      /* Iterate semaphore info */
+
+#define IPCS_MSG_CONF  0x00000100      /* Obtain message queue config */
+#define IPCS_MSG_ITER  0x00000200      /* Iterate message queue info */
+
+/*
+ * Sysctl oid name values
+ */
+#define IPCS_SHM_SYSCTL        "kern.sysv.ipcs.shm"
+#define IPCS_SEM_SYSCTL        "kern.sysv.ipcs.sem"
+#define IPCS_MSG_SYSCTL        "kern.sysv.ipcs.msg"
+
+
+#endif /* _SYS_IPCS_H_ */