* Copyright (c) 2000-2007 Apple 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
* 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,
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
/* $NetBSD: msg.h,v 1.4 1994/06/29 06:44:43 cgd Exp $ */
#include <sys/_types/_ssize_t.h>
/* [XSI] Used for the number of messages in the message queue */
-typedef unsigned long msgqnum_t;
+typedef unsigned long msgqnum_t;
/* [XSI] Used for the number of bytes allowed in a message queue */
-typedef unsigned long msglen_t;
+typedef unsigned long msglen_t;
/*
* Possible values for the fifth parameter to msgrcv(), in addition to the
* IPC_NOWAIT flag, which is permitted.
*/
-#define MSG_NOERROR 010000 /* [XSI] No error if big message */
+#define MSG_NOERROR 010000 /* [XSI] No error if big message */
/*
#pragma pack(4)
/*
* Structure used internally.
- *
+ *
* Structure whose address is passed as the third parameter to msgctl()
* when the second parameter is IPC_SET or IPC_STAT. In the case of the
* IPC_SET command, only the msg_perm.{uid|gid|perm} and msg_qbytes are
#if (defined(_POSIX_C_SOURCE) && !defined(_DARWIN_C_SOURCE))
struct msqid_ds
#else
-#define msqid_ds __msqid_ds_new
+#define msqid_ds __msqid_ds_new
struct __msqid_ds_new
#endif
{
- struct __ipc_perm_new msg_perm; /* [XSI] msg queue permissions */
- __int32_t msg_first; /* RESERVED: kernel use only */
- __int32_t msg_last; /* RESERVED: kernel use only */
- msglen_t msg_cbytes; /* # of bytes on the queue */
- msgqnum_t msg_qnum; /* [XSI] number of msgs on the queue */
- msglen_t msg_qbytes; /* [XSI] max bytes on the queue */
- pid_t msg_lspid; /* [XSI] pid of last msgsnd() */
- pid_t msg_lrpid; /* [XSI] pid of last msgrcv() */
- time_t msg_stime; /* [XSI] time of last msgsnd() */
- __int32_t msg_pad1; /* RESERVED: DO NOT USE */
- time_t msg_rtime; /* [XSI] time of last msgrcv() */
- __int32_t msg_pad2; /* RESERVED: DO NOT USE */
- time_t msg_ctime; /* [XSI] time of last msgctl() */
- __int32_t msg_pad3; /* RESERVED: DO NOT USE */
- __int32_t msg_pad4[4]; /* RESERVED: DO NOT USE */
+ struct __ipc_perm_new msg_perm; /* [XSI] msg queue permissions */
+ __int32_t msg_first; /* RESERVED: kernel use only */
+ __int32_t msg_last; /* RESERVED: kernel use only */
+ msglen_t msg_cbytes; /* # of bytes on the queue */
+ msgqnum_t msg_qnum; /* [XSI] number of msgs on the queue */
+ msglen_t msg_qbytes; /* [XSI] max bytes on the queue */
+ pid_t msg_lspid; /* [XSI] pid of last msgsnd() */
+ pid_t msg_lrpid; /* [XSI] pid of last msgrcv() */
+ time_t msg_stime; /* [XSI] time of last msgsnd() */
+ __int32_t msg_pad1; /* RESERVED: DO NOT USE */
+ time_t msg_rtime; /* [XSI] time of last msgrcv() */
+ __int32_t msg_pad2; /* RESERVED: DO NOT USE */
+ time_t msg_ctime; /* [XSI] time of last msgctl() */
+ __int32_t msg_pad3; /* RESERVED: DO NOT USE */
+ __int32_t msg_pad4[4]; /* RESERVED: DO NOT USE */
};
#pragma pack()
-#else /* !__DARWIN_UNIX03 */
-#define msqid_ds __msqid_ds_old
-#endif /* !__DARWIN_UNIX03 */
+#else /* !__DARWIN_UNIX03 */
+#define msqid_ds __msqid_ds_old
+#endif /* !__DARWIN_UNIX03 */
#if !__DARWIN_UNIX03
struct __msqid_ds_old {
- struct __ipc_perm_old msg_perm; /* [XSI] msg queue permissions */
- __int32_t msg_first; /* RESERVED: kernel use only */
- __int32_t msg_last; /* RESERVED: kernel use only */
- msglen_t msg_cbytes; /* # of bytes on the queue */
- msgqnum_t msg_qnum; /* [XSI] number of msgs on the queue */
- msglen_t msg_qbytes; /* [XSI] max bytes on the queue */
- pid_t msg_lspid; /* [XSI] pid of last msgsnd() */
- pid_t msg_lrpid; /* [XSI] pid of last msgrcv() */
- time_t msg_stime; /* [XSI] time of last msgsnd() */
- __int32_t msg_pad1; /* RESERVED: DO NOT USE */
- time_t msg_rtime; /* [XSI] time of last msgrcv() */
- __int32_t msg_pad2; /* RESERVED: DO NOT USE */
- time_t msg_ctime; /* [XSI] time of last msgctl() */
- __int32_t msg_pad3; /* RESERVED: DO NOT USE */
- __int32_t msg_pad4[4]; /* RESERVED: DO NOT USE */
+ struct __ipc_perm_old msg_perm; /* [XSI] msg queue permissions */
+ __int32_t msg_first; /* RESERVED: kernel use only */
+ __int32_t msg_last; /* RESERVED: kernel use only */
+ msglen_t msg_cbytes; /* # of bytes on the queue */
+ msgqnum_t msg_qnum; /* [XSI] number of msgs on the queue */
+ msglen_t msg_qbytes; /* [XSI] max bytes on the queue */
+ pid_t msg_lspid; /* [XSI] pid of last msgsnd() */
+ pid_t msg_lrpid; /* [XSI] pid of last msgrcv() */
+ time_t msg_stime; /* [XSI] time of last msgsnd() */
+ __int32_t msg_pad1; /* RESERVED: DO NOT USE */
+ time_t msg_rtime; /* [XSI] time of last msgrcv() */
+ __int32_t msg_pad2; /* RESERVED: DO NOT USE */
+ time_t msg_ctime; /* [XSI] time of last msgctl() */
+ __int32_t msg_pad3; /* RESERVED: DO NOT USE */
+ __int32_t msg_pad4[4]; /* RESERVED: DO NOT USE */
};
-#endif /* !__DARWIN_UNIX03 */
+#endif /* !__DARWIN_UNIX03 */
#ifdef KERNEL
#ifdef __APPLE_API_PRIVATE
#pragma options align=natural
#endif
-typedef user_ulong_t user_msgqnum_t;
-typedef user64_ulong_t user64_msgqnum_t;
-typedef user32_ulong_t user32_msgqnum_t;
+typedef user_ulong_t user_msgqnum_t;
+typedef user64_ulong_t user64_msgqnum_t;
+typedef user32_ulong_t user32_msgqnum_t;
-typedef user_ulong_t user_msglen_t;
-typedef user64_ulong_t user64_msglen_t;
-typedef user32_ulong_t user32_msglen_t;
+typedef user_ulong_t user_msglen_t;
+typedef user64_ulong_t user64_msglen_t;
+typedef user32_ulong_t user32_msglen_t;
/* kernel version */
struct user_msqid_ds {
- struct ipc_perm msg_perm; /* [XSI] msg queue permissions */
- struct msg *msg_first; /* first message in the queue */
- struct msg *msg_last; /* last message in the queue */
- user_msglen_t msg_cbytes; /* # of bytes on the queue */
- user_msgqnum_t msg_qnum; /* [XSI] number of msgs on the queue */
- user_msglen_t msg_qbytes; /* [XSI] max bytes on the queue */
- pid_t msg_lspid; /* [XSI] pid of last msgsnd() */
- pid_t msg_lrpid; /* [XSI] pid of last msgrcv() */
- user_time_t msg_stime; /* [XSI] time of last msgsnd() */
- __int32_t msg_pad1; /* RESERVED: DO NOT USE */
- user_time_t msg_rtime; /* [XSI] time of last msgrcv() */
- __int32_t msg_pad2; /* RESERVED: DO NOT USE */
- user_time_t msg_ctime; /* [XSI] time of last msgctl() */
- __int32_t msg_pad3; /* RESERVED: DO NOT USE */
- __int32_t msg_pad4[4];
+ struct ipc_perm msg_perm; /* [XSI] msg queue permissions */
+ struct msg *msg_first; /* first message in the queue */
+ struct msg *msg_last; /* last message in the queue */
+ user_msglen_t msg_cbytes; /* # of bytes on the queue */
+ user_msgqnum_t msg_qnum; /* [XSI] number of msgs on the queue */
+ user_msglen_t msg_qbytes; /* [XSI] max bytes on the queue */
+ pid_t msg_lspid; /* [XSI] pid of last msgsnd() */
+ pid_t msg_lrpid; /* [XSI] pid of last msgrcv() */
+ user_time_t msg_stime; /* [XSI] time of last msgsnd() */
+ __int32_t msg_pad1; /* RESERVED: DO NOT USE */
+ user_time_t msg_rtime; /* [XSI] time of last msgrcv() */
+ __int32_t msg_pad2; /* RESERVED: DO NOT USE */
+ user_time_t msg_ctime; /* [XSI] time of last msgctl() */
+ __int32_t msg_pad3; /* RESERVED: DO NOT USE */
+ __int32_t msg_pad4[4];
};
/*
* compiled LP64, because the 32 bit kernel doesn't need it
*/
struct user64_msqid_ds {
- struct ipc_perm msg_perm; /* [XSI] msg queue permissions */
- __int32_t msg_first; /* RESERVED: kernel use only */
- __int32_t msg_last; /* RESERVED: kernel use only */
- user64_msglen_t msg_cbytes; /* # of bytes on the queue */
- user64_msgqnum_t msg_qnum; /* [XSI] number of msgs on the queue */
- user64_msglen_t msg_qbytes; /* [XSI] max bytes on the queue */
- pid_t msg_lspid; /* [XSI] pid of last msgsnd() */
- pid_t msg_lrpid; /* [XSI] pid of last msgrcv() */
- user64_time_t msg_stime; /* [XSI] time of last msgsnd() */
- __int32_t msg_pad1; /* RESERVED: DO NOT USE */
- user64_time_t msg_rtime; /* [XSI] time of last msgrcv() */
- __int32_t msg_pad2; /* RESERVED: DO NOT USE */
- user64_time_t msg_ctime; /* [XSI] time of last msgctl() */
- __int32_t msg_pad3; /* RESERVED: DO NOT USE */
- __int32_t msg_pad4[4];
+ struct ipc_perm msg_perm; /* [XSI] msg queue permissions */
+ __int32_t msg_first; /* RESERVED: kernel use only */
+ __int32_t msg_last; /* RESERVED: kernel use only */
+ user64_msglen_t msg_cbytes; /* # of bytes on the queue */
+ user64_msgqnum_t msg_qnum; /* [XSI] number of msgs on the queue */
+ user64_msglen_t msg_qbytes; /* [XSI] max bytes on the queue */
+ pid_t msg_lspid; /* [XSI] pid of last msgsnd() */
+ pid_t msg_lrpid; /* [XSI] pid of last msgrcv() */
+ user64_time_t msg_stime; /* [XSI] time of last msgsnd() */
+ __int32_t msg_pad1; /* RESERVED: DO NOT USE */
+ user64_time_t msg_rtime; /* [XSI] time of last msgrcv() */
+ __int32_t msg_pad2; /* RESERVED: DO NOT USE */
+ user64_time_t msg_ctime; /* [XSI] time of last msgctl() */
+ __int32_t msg_pad3; /* RESERVED: DO NOT USE */
+ __int32_t msg_pad4[4];
} __attribute__((__packed__));
-struct user32_msqid_ds
-{
- struct __ipc_perm_new msg_perm; /* [XSI] msg queue permissions */
- __int32_t msg_first; /* RESERVED: kernel use only */
- __int32_t msg_last; /* RESERVED: kernel use only */
- user32_msglen_t msg_cbytes; /* # of bytes on the queue */
- user32_msgqnum_t msg_qnum; /* [XSI] number of msgs on the queue */
- user32_msglen_t msg_qbytes; /* [XSI] max bytes on the queue */
- pid_t msg_lspid; /* [XSI] pid of last msgsnd() */
- pid_t msg_lrpid; /* [XSI] pid of last msgrcv() */
- user32_time_t msg_stime; /* [XSI] time of last msgsnd() */
- __int32_t msg_pad1; /* RESERVED: DO NOT USE */
- user32_time_t msg_rtime; /* [XSI] time of last msgrcv() */
- __int32_t msg_pad2; /* RESERVED: DO NOT USE */
- user32_time_t msg_ctime; /* [XSI] time of last msgctl() */
- __int32_t msg_pad3; /* RESERVED: DO NOT USE */
- __int32_t msg_pad4[4]; /* RESERVED: DO NOT USE */
+struct user32_msqid_ds {
+ struct __ipc_perm_new msg_perm; /* [XSI] msg queue permissions */
+ __int32_t msg_first; /* RESERVED: kernel use only */
+ __int32_t msg_last; /* RESERVED: kernel use only */
+ user32_msglen_t msg_cbytes; /* # of bytes on the queue */
+ user32_msgqnum_t msg_qnum; /* [XSI] number of msgs on the queue */
+ user32_msglen_t msg_qbytes; /* [XSI] max bytes on the queue */
+ pid_t msg_lspid; /* [XSI] pid of last msgsnd() */
+ pid_t msg_lrpid; /* [XSI] pid of last msgrcv() */
+ user32_time_t msg_stime; /* [XSI] time of last msgsnd() */
+ __int32_t msg_pad1; /* RESERVED: DO NOT USE */
+ user32_time_t msg_rtime; /* [XSI] time of last msgrcv() */
+ __int32_t msg_pad2; /* RESERVED: DO NOT USE */
+ user32_time_t msg_ctime; /* [XSI] time of last msgctl() */
+ __int32_t msg_pad3; /* RESERVED: DO NOT USE */
+ __int32_t msg_pad4[4]; /* RESERVED: DO NOT USE */
};
#if __DARWIN_ALIGN_NATURAL
* Kernel wrapper for the user-level structure
*/
struct msqid_kernel {
- struct user_msqid_ds u;
- struct label *label; /* MAC framework label */
+ struct user_msqid_ds u;
+ struct label *label; /* MAC framework label */
};
-#endif /* __APPLE_API_PRIVATE */
-#endif /* KERNEL */
+#endif /* __APPLE_API_PRIVATE */
+#endif /* KERNEL */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
/* XXX kernel only; protect with macro later */
struct msg {
- struct msg *msg_next; /* next msg in the chain */
- long msg_type; /* type of this message */
- /* >0 -> type of this message */
- /* 0 -> free header */
- unsigned short msg_ts; /* size of this message */
- short msg_spot; /* location of msg start in buffer */
- struct label *label; /* MAC label */
+ struct msg *msg_next; /* next msg in the chain */
+ long msg_type; /* type of this message */
+ /* >0 -> type of this message */
+ /* 0 -> free header */
+ unsigned short msg_ts; /* size of this message */
+ short msg_spot; /* location of msg start in buffer */
+ struct label *label; /* MAC label */
};
/*
* backward compatability with existing source code.
*/
struct mymsg {
- long mtype; /* message type (+ve integer) */
- char mtext[1]; /* message body */
+ long mtype; /* message type (+ve integer) */
+ char mtext[1]; /* message body */
};
/*
* two between 8 and 1024 inclusive (and panic's if it isn't).
*/
struct msginfo {
- int msgmax, /* max chars in a message */
- msgmni, /* max message queue identifiers */
- msgmnb, /* max chars in a queue */
- msgtql, /* max messages in system */
- msgssz, /* size of a message segment (see notes above) */
- msgseg; /* number of message segments */
+ int msgmax, /* max chars in a message */
+ msgmni, /* max message queue identifiers */
+ msgmnb, /* max chars in a queue */
+ msgtql, /* max messages in system */
+ msgssz, /* size of a message segment (see notes above) */
+ msgseg; /* number of message segments */
};
#ifdef KERNEL
-extern struct msginfo msginfo;
+extern struct msginfo msginfo;
#ifndef MSGSSZ
-#define MSGSSZ 8 /* Each segment must be 2^N long */
+#define MSGSSZ 8 /* Each segment must be 2^N long */
#endif
#ifndef MSGSEG
-#define MSGSEG 2048 /* must be less than 32767 */
+#define MSGSEG 2048 /* must be less than 32767 */
#endif
-#define MSGMAX (MSGSSZ*MSGSEG)
+#define MSGMAX (MSGSSZ*MSGSEG)
#ifndef MSGMNB
-#define MSGMNB 2048 /* max # of bytes in a queue */
+#define MSGMNB 2048 /* max # of bytes in a queue */
#endif
#ifndef MSGMNI
-#define MSGMNI 40
+#define MSGMNI 40
#endif
#ifndef MSGTQL
-#define MSGTQL 40
+#define MSGTQL 40
#endif
/*
* macros to convert between msqid_ds's and msqid's.
* (specific to this implementation)
*/
-#define MSQID(ix,ds) ((ix) & 0xffff | (((ds).msg_perm.seq << 16) & 0xffff0000))
-#define MSQID_IX(id) ((id) & 0xffff)
-#define MSQID_SEQ(id) (((id) >> 16) & 0xffff)
+#define MSQID(ix, ds) ((ix) & 0xffff | (((ds).msg_perm.seq << 16) & 0xffff0000))
+#define MSQID_IX(id) ((id) & 0xffff)
+#define MSQID_SEQ(id) (((id) >> 16) & 0xffff)
/*
* The rest of this file is specific to this particular implementation.
* Stuff allocated in machdep.h
*/
struct msgmap {
- short next; /* next segment in buffer */
- /* -1 -> available */
- /* 0..(MSGSEG-1) -> index of next segment */
+ short next; /* next segment in buffer */
+ /* -1 -> available */
+ /* 0..(MSGSEG-1) -> index of next segment */
};
/* The following four externs really, really need to die; should be static */
-extern char *msgpool; /* MSGMAX byte long msg buffer pool */
-extern struct msgmap *msgmaps; /* MSGSEG msgmap structures */
-extern struct msg *msghdrs; /* MSGTQL msg headers */
-extern struct msqid_kernel *msqids; /* MSGMNI user_msqid_ds struct's */
+extern char *msgpool; /* MSGMAX byte long msg buffer pool */
+extern struct msgmap *msgmaps; /* MSGSEG msgmap structures */
+extern struct msg *msghdrs; /* MSGTQL msg headers */
+extern struct msqid_kernel *msqids; /* MSGMNI user_msqid_ds struct's */
-#define MSG_LOCKED 01000 /* Is this msqid_ds locked? */
+#define MSG_LOCKED 01000 /* Is this msqid_ds locked? */
-#endif /* KERNEL */
-#endif /* __APPLE_API_UNSTABLE */
-#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+#endif /* KERNEL */
+#endif /* __APPLE_API_UNSTABLE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
#ifndef KERNEL
__BEGIN_DECLS
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
int msgsys(int, ...);
-#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
int msgctl(int, int, struct msqid_ds *) __DARWIN_ALIAS(msgctl);
int msgget(key_t, int);
ssize_t msgrcv(int, void *, size_t, long, int) __DARWIN_ALIAS_C(msgrcv);
#endif /* !KERNEL */
#endif /* !_SYS_MSG_H_ */
-
-
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