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- /*
- * Mach Operating System
- * Copyright (c) 1992-1987 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
- /*
- * HISTORY
- * $Log: message.h,v $
- * Revision 2.15 93/01/14 17:44:53 danner
- * Cleanup.
- * [92/06/10 pds]
- * 64bit cleanup.
- * [92/12/01 af]
- *
- * Revision 2.14 92/05/21 17:22:30 jfriedl
- * Appended 'U' to constants that would otherwise be signed.
- * [92/05/16 jfriedl]
- *
- * Revision 2.13 92/02/23 14:42:54 elf
- * Condensed history, update copyright.
- * [92/02/23 danner]
- *
- * Added MACH_MSGH_BITS_MIGRATED (NORMA_IPC internal).
- * [91/12/25 16:42:44 jsb]
- *
- * Revision 2.12 92/01/15 13:44:29 rpd
- * Changed MACH_IPC_COMPAT conditionals to default to not present.
- *
- * Condensed history:
- * Check __STDC__ to get function prototypes. (rpd)
- * Removed MACH_MSGH_KIND_NOTIFICATION compatibility defn. (rpd)
- * Replaced msgh_kind with msgh_seqno. (jsb)
- * Added MACH_MSGH_BITS_COMPLEX_{PORTS,DATA}. (jsb)
- * Changed mach_msg_timeout_t to unsigned. (rpd)
- * Converted to new IPC (rpd)
- * Named unused bits in message structures (rpd).
- * Added MSG_TYPE_POLYMORPHIC (rpd).
- * Put ownership rights under MACH_IPC_XXXHACK (rpd).
- * Removed some unused defines (rpd).
- * Made MSG_TYPE_PORT_NAME a separate type (rpd).
- * Added SEND_SWITCH (mwyoung).
- * Added SEND_MSG_SIZE_CHANGE (mwyoung).
- * Added msg_size_t, msg_timeout_t (mwyoung).
- * Added MSG_TYPE_INTERNAL_MEMORY (mwyoung).
- * Use unsigned ints/shorts (avie).
- * Added SEND_INTERRUPT (mwyoung).
- */
- /*
- * File: mach/message.h
- *
- * Mach IPC message and primitive function definitions.
- */
-
- #ifndef _MACH_MESSAGE_H_
- #define _MACH_MESSAGE_H_
-
- #import <mach/kern_return.h>
- #import <mach/port.h>
-
-
- /*
- * The timeout mechanism uses mach_msg_timeout_t values,
- * passed by value. The timeout units are milliseconds.
- * It is controlled with the MACH_SEND_TIMEOUT
- * and MACH_RCV_TIMEOUT options.
- */
-
- typedef natural_t mach_msg_timeout_t;
-
- /*
- * The value to be used when there is no timeout.
- * (No MACH_SEND_TIMEOUT/MACH_RCV_TIMEOUT option.)
- */
-
- #define MACH_MSG_TIMEOUT_NONE ((mach_msg_timeout_t) 0)
-
- /*
- * The kernel uses MACH_MSGH_BITS_COMPLEX as a hint. It it isn't on, it
- * assumes the body of the message doesn't contain port rights or OOL
- * data. The field is set in received messages. A user task must
- * use caution in interpreting the body of a message if the bit isn't
- * on, because the mach_msg_type's in the body might "lie" about the
- * contents. If the bit isn't on, but the mach_msg_types
- * in the body specify rights or OOL data, the behaviour is undefined.
- * (Ie, an error may or may not be produced.)
- *
- * The value of MACH_MSGH_BITS_REMOTE determines the interpretation
- * of the msgh_remote_port field. It is handled like a msgt_name.
- *
- * The value of MACH_MSGH_BITS_LOCAL determines the interpretation
- * of the msgh_local_port field. It is handled like a msgt_name.
- *
- * MACH_MSGH_BITS() combines two MACH_MSG_TYPE_* values, for the remote
- * and local fields, into a single value suitable for msgh_bits.
- *
- * MACH_MSGH_BITS_COMPLEX_PORTS, MACH_MSGH_BITS_COMPLEX_DATA, and
- * MACH_MSGH_BITS_CIRCULAR should be zero; they are used internally.
- *
- * The unused bits should be zero.
- */
-
- #define MACH_MSGH_BITS_ZERO 0x00000000
- #define MACH_MSGH_BITS_REMOTE_MASK 0x000000ff
- #define MACH_MSGH_BITS_LOCAL_MASK 0x0000ff00
- #define MACH_MSGH_BITS_COMPLEX 0x80000000U
- #define MACH_MSGH_BITS_CIRCULAR 0x40000000 /* internal use only */
- #define MACH_MSGH_BITS_COMPLEX_PORTS 0x20000000 /* internal use only */
- #define MACH_MSGH_BITS_COMPLEX_DATA 0x10000000 /* internal use only */
- #define MACH_MSGH_BITS_MIGRATED 0x08000000 /* internal use only */
- #define MACH_MSGH_BITS_UNUSED 0x07ff0000
-
- #define MACH_MSGH_BITS_PORTS_MASK \
- (MACH_MSGH_BITS_REMOTE_MASK|MACH_MSGH_BITS_LOCAL_MASK)
-
- #define MACH_MSGH_BITS(remote, local) \
- ((remote) | ((local) << 8))
- #define MACH_MSGH_BITS_REMOTE(bits) \
- ((bits) & MACH_MSGH_BITS_REMOTE_MASK)
- #define MACH_MSGH_BITS_LOCAL(bits) \
- (((bits) & MACH_MSGH_BITS_LOCAL_MASK) >> 8)
- #define MACH_MSGH_BITS_PORTS(bits) \
- ((bits) & MACH_MSGH_BITS_PORTS_MASK)
- #define MACH_MSGH_BITS_OTHER(bits) \
- ((bits) &~ MACH_MSGH_BITS_PORTS_MASK)
-
- /*
- * Every message starts with a message header.
- * Following the message header are zero or more pairs of
- * type descriptors (mach_msg_type_t/mach_msg_type_long_t) and
- * data values. The size of the message must be specified in bytes,
- * and includes the message header, type descriptors, inline
- * data, and inline pointer for out-of-line data.
- *
- * The msgh_remote_port field specifies the destination of the message.
- * It must specify a valid send or send-once right for a port.
- *
- * The msgh_local_port field specifies a "reply port". Normally,
- * This field carries a send-once right that the receiver will use
- * to reply to the message. It may carry the values MACH_PORT_NULL,
- * MACH_PORT_DEAD, a send-once right, or a send right.
- *
- * The msgh_seqno field carries a sequence number associated with the
- * received-from port. A port's sequence number is incremented every
- * time a message is received from it. In sent messages, the field's
- * value is ignored.
- *
- * The msgh_id field is uninterpreted by the message primitives.
- * It normally carries information specifying the format
- * or meaning of the message.
- */
-
- typedef unsigned int mach_msg_bits_t;
- typedef unsigned int mach_msg_size_t;
- typedef natural_t mach_msg_seqno_t;
- typedef integer_t mach_msg_id_t;
-
- typedef struct {
- mach_msg_bits_t msgh_bits;
- mach_msg_size_t msgh_size;
- mach_port_t msgh_remote_port;
- mach_port_t msgh_local_port;
- mach_port_seqno_t msgh_seqno;
- mach_msg_id_t msgh_id;
- } mach_msg_header_t;
-
- /*
- * There is no fixed upper bound to the size of Mach messages.
- */
-
- #define MACH_MSG_SIZE_MAX ((mach_msg_size_t) ~0)
-
- /*
- * Compatibility definitions, for code written
- * when there was a msgh_kind instead of msgh_seqno.
- */
-
- #define MACH_MSGH_KIND_NORMAL 0x00000000
- #if 0
- /* code using this is likely to break, so better not to have it defined */
- #define MACH_MSGH_KIND_NOTIFICATION 0x00000001
- #endif
- #define msgh_kind msgh_seqno
- #define mach_msg_kind_t mach_port_seqno_t
-
- /*
- * The msgt_number field specifies the number of data elements.
- * The msgt_size field specifies the size of each data element, in bits.
- * The msgt_name field specifies the type of each data element.
- * If msgt_inline is TRUE, the data follows the type descriptor
- * in the body of the message. If msgt_inline is FALSE, then a pointer
- * to the data should follow the type descriptor, and the data is
- * sent out-of-line. In this case, if msgt_deallocate is TRUE,
- * then the out-of-line data is moved (instead of copied) into the message.
- * If msgt_longform is TRUE, then the type descriptor is actually
- * a mach_msg_type_long_t.
- *
- * The actual amount of inline data following the descriptor must
- * a multiple of the word size. For out-of-line data, this is a
- * pointer. For inline data, the supplied data size (calculated
- * from msgt_number/msgt_size) is rounded up. This guarantees
- * that type descriptors always fall on word boundaries.
- *
- * For port rights, msgt_size must be 8*sizeof(mach_port_t).
- * If the data is inline, msgt_deallocate should be FALSE.
- * The msgt_unused bit should be zero.
- * The msgt_name, msgt_size, msgt_number fields in
- * a mach_msg_type_long_t should be zero.
- */
-
- typedef unsigned int mach_msg_type_name_t;
- typedef unsigned int mach_msg_type_size_t;
- typedef natural_t mach_msg_type_number_t;
-
- typedef struct {
- unsigned int msgt_name : 8,
- msgt_size : 8,
- msgt_number : 12,
- msgt_inline : 1,
- msgt_longform : 1,
- msgt_deallocate : 1,
- msgt_unused : 1;
- } mach_msg_type_t;
-
- typedef struct {
- mach_msg_type_t msgtl_header;
- unsigned short msgtl_name;
- unsigned short msgtl_size;
- natural_t msgtl_number;
- } mach_msg_type_long_t;
-
-
- /*
- * Known values for the msgt_name field.
- *
- * The only types known to the Mach kernel are
- * the port types, and those types used in the
- * kernel RPC interface.
- */
-
- #define MACH_MSG_TYPE_UNSTRUCTURED 0
- #define MACH_MSG_TYPE_BIT 0
- #define MACH_MSG_TYPE_BOOLEAN 0
- #define MACH_MSG_TYPE_INTEGER_16 1
- #define MACH_MSG_TYPE_INTEGER_32 2
- #define MACH_MSG_TYPE_CHAR 8
- #define MACH_MSG_TYPE_BYTE 9
- #define MACH_MSG_TYPE_INTEGER_8 9
- #define MACH_MSG_TYPE_REAL 10
- #define MACH_MSG_TYPE_INTEGER_64 11
- #define MACH_MSG_TYPE_STRING 12
- #define MACH_MSG_TYPE_STRING_C 12
-
- /*
- * Values used when sending a port right.
- */
-
- #define MACH_MSG_TYPE_MOVE_RECEIVE 16 /* Must hold receive rights */
- #define MACH_MSG_TYPE_MOVE_SEND 17 /* Must hold send rights */
- #define MACH_MSG_TYPE_MOVE_SEND_ONCE 18 /* Must hold sendonce rights */
- #define MACH_MSG_TYPE_COPY_SEND 19 /* Must hold send rights */
- #define MACH_MSG_TYPE_MAKE_SEND 20 /* Must hold receive rights */
- #define MACH_MSG_TYPE_MAKE_SEND_ONCE 21 /* Must hold receive rights */
-
- /*
- * Values received/carried in messages. Tells the receiver what
- * sort of port right he now has.
- *
- * MACH_MSG_TYPE_PORT_NAME is used to transfer a port name
- * which should remain uninterpreted by the kernel. (Port rights
- * are not transferred, just the port name.)
- */
-
- #define MACH_MSG_TYPE_PORT_NAME 15
- #define MACH_MSG_TYPE_PORT_RECEIVE MACH_MSG_TYPE_MOVE_RECEIVE
- #define MACH_MSG_TYPE_PORT_SEND MACH_MSG_TYPE_MOVE_SEND
- #define MACH_MSG_TYPE_PORT_SEND_ONCE MACH_MSG_TYPE_MOVE_SEND_ONCE
-
- #define MACH_MSG_TYPE_LAST 22 /* Last assigned */
-
- /*
- * A dummy value. Mostly used to indicate that the actual value
- * will be filled in later, dynamically.
- */
-
- #define MACH_MSG_TYPE_POLYMORPHIC ((mach_msg_type_name_t) -1)
-
- /*
- * Is a given item a port type?
- */
-
- #define MACH_MSG_TYPE_PORT_ANY(x) \
- (((x) >= MACH_MSG_TYPE_MOVE_RECEIVE) && \
- ((x) <= MACH_MSG_TYPE_MAKE_SEND_ONCE))
-
- #define MACH_MSG_TYPE_PORT_ANY_SEND(x) \
- (((x) >= MACH_MSG_TYPE_MOVE_SEND) && \
- ((x) <= MACH_MSG_TYPE_MAKE_SEND_ONCE))
-
- #define MACH_MSG_TYPE_PORT_ANY_RIGHT(x) \
- (((x) >= MACH_MSG_TYPE_MOVE_RECEIVE) && \
- ((x) <= MACH_MSG_TYPE_MOVE_SEND_ONCE))
-
- typedef integer_t mach_msg_option_t;
-
- #define MACH_MSG_OPTION_NONE 0x00000000
-
- #define MACH_SEND_MSG 0x00000001
- #define MACH_RCV_MSG 0x00000002
-
- #define MACH_SEND_TIMEOUT 0x00000010
- #define MACH_SEND_NOTIFY 0x00000020
- #define MACH_SEND_INTERRUPT 0x00000040 /* libmach implements */
- #define MACH_SEND_CANCEL 0x00000080
- #define MACH_RCV_TIMEOUT 0x00000100
- #define MACH_RCV_NOTIFY 0x00000200
- #define MACH_RCV_INTERRUPT 0x00000400 /* libmach implements */
- #define MACH_RCV_LARGE 0x00000800
-
- #define MACH_SEND_ALWAYS 0x00010000 /* internal use only */
- #define MACH_SEND_SWITCH 0x00020000 /* internal use only */
-
-
- /*
- * Much code assumes that mach_msg_return_t == kern_return_t.
- * This definition is useful for descriptive purposes.
- *
- * See <mach/error.h> for the format of error codes.
- * IPC errors are system 4. Send errors are subsystem 0;
- * receive errors are subsystem 1. The code field is always non-zero.
- * The high bits of the code field communicate extra information
- * for some error codes. MACH_MSG_MASK masks off these special bits.
- */
-
- typedef kern_return_t mach_msg_return_t;
-
- #define MACH_MSG_SUCCESS 0x00000000
-
- #define MACH_MSG_MASK 0x00003c00
- /* All special error code bits defined below. */
- #define MACH_MSG_IPC_SPACE 0x00002000
- /* No room in IPC name space for another capability name. */
- #define MACH_MSG_VM_SPACE 0x00001000
- /* No room in VM address space for out-of-line memory. */
- #define MACH_MSG_IPC_KERNEL 0x00000800
- /* Kernel resource shortage handling an IPC capability. */
- #define MACH_MSG_VM_KERNEL 0x00000400
- /* Kernel resource shortage handling out-of-line memory. */
-
- #define MACH_SEND_IN_PROGRESS 0x10000001
- /* Thread is waiting to send. (Internal use only.) */
- #define MACH_SEND_INVALID_DATA 0x10000002
- /* Bogus in-line data. */
- #define MACH_SEND_INVALID_DEST 0x10000003
- /* Bogus destination port. */
- #define MACH_SEND_TIMED_OUT 0x10000004
- /* Message not sent before timeout expired. */
- #define MACH_SEND_WILL_NOTIFY 0x10000005
- /* Msg-accepted notification will be generated. */
- #define MACH_SEND_NOTIFY_IN_PROGRESS 0x10000006
- /* Msg-accepted notification already pending. */
- #define MACH_SEND_INTERRUPTED 0x10000007
- /* Software interrupt. */
- #define MACH_SEND_MSG_TOO_SMALL 0x10000008
- /* Data doesn't contain a complete message. */
- #define MACH_SEND_INVALID_REPLY 0x10000009
- /* Bogus reply port. */
- #define MACH_SEND_INVALID_RIGHT 0x1000000a
- /* Bogus port rights in the message body. */
- #define MACH_SEND_INVALID_NOTIFY 0x1000000b
- /* Bogus notify port argument. */
- #define MACH_SEND_INVALID_MEMORY 0x1000000c
- /* Invalid out-of-line memory pointer. */
- #define MACH_SEND_NO_BUFFER 0x1000000d
- /* No message buffer is available. */
- #define MACH_SEND_NO_NOTIFY 0x1000000e
- /* Resource shortage; can't request msg-accepted notif. */
- #define MACH_SEND_INVALID_TYPE 0x1000000f
- /* Invalid msg-type specification. */
- #define MACH_SEND_INVALID_HEADER 0x10000010
- /* A field in the header had a bad value. */
-
- #define MACH_RCV_IN_PROGRESS 0x10004001
- /* Thread is waiting for receive. (Internal use only.) */
- #define MACH_RCV_INVALID_NAME 0x10004002
- /* Bogus name for receive port/port-set. */
- #define MACH_RCV_TIMED_OUT 0x10004003
- /* Didn't get a message within the timeout value. */
- #define MACH_RCV_TOO_LARGE 0x10004004
- /* Message buffer is not large enough for inline data. */
- #define MACH_RCV_INTERRUPTED 0x10004005
- /* Software interrupt. */
- #define MACH_RCV_PORT_CHANGED 0x10004006
- /* Port moved into a set during the receive. */
- #define MACH_RCV_INVALID_NOTIFY 0x10004007
- /* Bogus notify port argument. */
- #define MACH_RCV_INVALID_DATA 0x10004008
- /* Bogus message buffer for inline data. */
- #define MACH_RCV_PORT_DIED 0x10004009
- /* Port/set was sent away/died during receive. */
- #define MACH_RCV_IN_SET 0x1000400a
- /* Port is a member of a port set. */
- #define MACH_RCV_HEADER_ERROR 0x1000400b
- /* Error receiving message header. See special bits. */
- #define MACH_RCV_BODY_ERROR 0x1000400c
- /* Error receiving message body. See special bits. */
-
-
- extern mach_msg_return_t
- mach_msg_trap
- #if defined(c_plusplus) || defined(__STDC__)
- (mach_msg_header_t *msg,
- mach_msg_option_t option,
- mach_msg_size_t send_size,
- mach_msg_size_t rcv_size,
- mach_port_t rcv_name,
- mach_msg_timeout_t timeout,
- mach_port_t notify);
- #else /* c_plusplus || __STDC__ */
- #ifdef LINTLIBRARY
- (msg, option, send_size, rcv_size, rcv_name, timeout, notify)
- mach_msg_header_t *msg;
- mach_msg_option_t option;
- mach_msg_size_t send_size;
- mach_msg_size_t rcv_size
- mach_port_t rcv_name;
- mach_msg_timeout_t timeout;
- mach_port_t notify;
- { return MACH_RCV_SUCCESS; }
- #else /* LINTLIBRARY */
- ();
- #endif /* LINTLIBRARY */
- #endif /* c_plusplus || __STDC__ */
-
- extern mach_msg_return_t
- mach_msg
- #if defined(c_plusplus) || defined(__STDC__)
- (mach_msg_header_t *msg,
- mach_msg_option_t option,
- mach_msg_size_t send_size,
- mach_msg_size_t rcv_size,
- mach_port_t rcv_name,
- mach_msg_timeout_t timeout,
- mach_port_t notify);
- #else /* c_plusplus || __STDC__ */
- #ifdef LINTLIBRARY
- (msg, option, send_size, rcv_size, rcv_name, timeout, notify)
- mach_msg_header_t *msg;
- mach_msg_option_t option;
- mach_msg_size_t send_size;
- mach_msg_size_t rcv_size
- mach_port_t rcv_name;
- mach_msg_timeout_t timeout;
- mach_port_t notify;
- { return MACH_RCV_SUCCESS; }
- #else /* LINTLIBRARY */
- ();
- #endif /* LINTLIBRARY */
- #endif /* c_plusplus || __STDC__ */
-
-
- /* Definitions for the old IPC interface. */
-
- /*
- * Message data structures.
- *
- * Messages consist of two parts: a fixed-size header, immediately
- * followed by a variable-size array of typed data items.
- *
- */
-
- typedef unsigned int msg_size_t;
-
- typedef struct {
- unsigned int msg_unused : 24,
- msg_simple : 8;
- msg_size_t msg_size;
- integer_t msg_type;
- port_t msg_local_port;
- port_t msg_remote_port;
- integer_t msg_id;
- } msg_header_t;
-
- #define MSG_SIZE_MAX 8192
-
- /*
- * Known values for the msg_type field.
- * These are Accent holdovers, which should be purged when possible.
- *
- * Only one bit in the msg_type field is used by the kernel.
- * Others are available to user applications. See <msg_type.h>
- * for system application-assigned values.
- */
-
- #define MSG_TYPE_NORMAL 0
- #define MSG_TYPE_EMERGENCY 1
-
- /*
- * Each data item is preceded by a description of that
- * item, including what type of data, how big it is, and
- * how many of them are present.
- *
- * The actual data will either follow this type
- * descriptor ("inline") or will be specified by a pointer.
- *
- * If the type name, size, or number is too large to be encoded
- * in this structure, the "longform" option may be selected,
- * and those fields must immediately follow in full integer fields.
- *
- * For convenience, out-of-line data regions or port rights may
- * be deallocated when the message is sent by specifying the
- * "deallocate" field. Beware: if the data item in question is both
- * out-of-line and contains port rights, then both will be deallocated.
- */
-
- typedef struct {
- unsigned int msg_type_name : 8, /* What kind of data */
- msg_type_size : 8, /* How many bits is each item */
- msg_type_number : 12, /* How many items are there */
- msg_type_inline : 1, /* If true, data follows; else a pointer */
- msg_type_longform : 1, /* Name, size, number follow: see above */
- msg_type_deallocate : 1, /* Deallocate port rights or memory */
- msg_type_unused : 1;
- } msg_type_t;
-
- typedef struct {
- msg_type_t msg_type_header;
- unsigned short msg_type_long_name;
- unsigned short msg_type_long_size;
- natural_t msg_type_long_number;
- } msg_type_long_t;
-
- /*
- * Known values for the msg_type_name field.
- *
- * The only types known to the Mach kernel are
- * the port types, and those types used in the
- * kernel RPC interface.
- */
-
- #define MSG_TYPE_UNSTRUCTURED 0
- #define MSG_TYPE_BIT 0
- #define MSG_TYPE_BOOLEAN 0
- #define MSG_TYPE_INTEGER_16 1
- #define MSG_TYPE_INTEGER_32 2
- #define MSG_TYPE_PORT_OWNERSHIP 3 /* obsolete */
- #define MSG_TYPE_PORT_RECEIVE 4 /* obsolete */
- #define MSG_TYPE_PORT_ALL 5
- #define MSG_TYPE_PORT 6
- #define MSG_TYPE_CHAR 8
- #define MSG_TYPE_BYTE 9
- #define MSG_TYPE_INTEGER_8 9
- #define MSG_TYPE_REAL 10
- #define MSG_TYPE_STRING 12
- #define MSG_TYPE_STRING_C 12
- /* MSG_TYPE_INVALID 13 unused */
-
- #ifdef KERNEL
- #define MSG_TYPE_INTERNAL_MEMORY 14
- #else KERNEL
- #define MSG_TYPE_INTERNAL_MEMORY MSG_TYPE_INTEGER_8
- #endif KERNEL
-
- #define MSG_TYPE_PORT_NAME 15 /* A capability name */
- #define MSG_TYPE_LAST 16 /* Last assigned */
-
- #define MSG_TYPE_POLYMORPHIC ((unsigned int) -1)
-
- /*
- * Is a given item a port type?
- */
-
- #define MSG_TYPE_PORT_ANY(x) \
- (((x) == MSG_TYPE_PORT) || ((x) == MSG_TYPE_PORT_ALL))
-
- /*
- * Other basic types
- */
-
- typedef natural_t msg_timeout_t;
-
- /*
- * Options to IPC primitives.
- *
- * These can be combined by or'ing; the combination RPC call
- * uses both SEND_ and RCV_ options at once.
- */
-
- typedef integer_t msg_option_t;
-
- #define MSG_OPTION_NONE 0x0000 /* Terminate only when message op works */
-
- #define SEND_TIMEOUT 0x0001 /* Terminate on timeout elapsed */
- #define SEND_NOTIFY 0x0002 /* Terminate with reply message if need be */
-
- #define SEND_INTERRUPT 0x0004 /* Terminate on software interrupt */
-
- #define SEND_SWITCH 0x0020 /* Use handoff scheduling */
-
- #ifdef KERNEL
- #define SEND_ALWAYS 0x0008 /* Never block */
- /* SEND_KERNEL 0x0010 Kernel is originator (not used) */
- #define SEND_USER (SEND_TIMEOUT|SEND_NOTIFY|SEND_SWITCH)
- /* Valid user options */
- #define SEND_SWITCH 0x0020 /* Use handoff scheduling */
- #endif KERNEL
-
- #define RCV_TIMEOUT 0x0100 /* Terminate on timeout elapsed */
- #define RCV_NO_SENDERS 0x0200 /* Terminate if I'm the only sender left */
- #define RCV_INTERRUPT 0x0400 /* Terminate on software interrupt */
- #define RCV_LARGE 0x1000
-
- #ifdef KERNEL
- #define RCV_USER (RCV_TIMEOUT|RCV_NO_SENDERS|RCV_INTERRUPT|RCV_LARGE)
- #endif KERNEL
-
- /*
- * Returns from IPC primitives.
- *
- * Values are separate in order to allow RPC users to
- * distinguish which operation failed; for successful completion,
- * this doesn't matter.
- */
-
- typedef int msg_return_t;
-
- #define SEND_SUCCESS 0
-
- #define SEND_ERRORS_START -100
- #ifdef KERNEL
- #define SEND_IN_PROGRESS -100
- #endif KERNEL
- #define SEND_INVALID_MEMORY -101 /* Message or OOL data invalid */
- #define SEND_INVALID_PORT -102 /* Reference to inacessible port */
- #define SEND_TIMED_OUT -103 /* Terminated due to timeout */
- #define SEND_WILL_NOTIFY -105 /* Msg accepted provisionally */
- #define SEND_NOTIFY_IN_PROGRESS -106 /* Already awaiting a notification */
- #define SEND_KERNEL_REFUSED -107 /* Message to the kernel refused */
- #define SEND_INTERRUPTED -108 /* Software interrupt during send */
- #define SEND_MSG_TOO_LARGE -109 /* Message specified was too large */
- #define SEND_MSG_TOO_SMALL -110 /* Data specified exceeds msg size */
- /* SEND_MSG_SIZE_CHANGE -111 Msg size changed during copy */
- #define SEND_ERRORS_END -111
-
- #define msg_return_send(x) ((x) < SEND_ERRORS_START && (x) > SEND_ERRORS_END)
-
- #define RCV_SUCCESS 0
-
- #define RCV_ERRORS_START -200
- #ifdef KERNEL
- #define RCV_IN_PROGRESS -200
- #endif KERNEL
- #define RCV_INVALID_MEMORY -201
- #define RCV_INVALID_PORT -202
- #define RCV_TIMED_OUT -203
- #define RCV_TOO_LARGE -204 /* Msg structure too small for data */
- #define RCV_NOT_ENOUGH_MEMORY -205 /* Can't find space for OOL data */
- #define RCV_ONLY_SENDER -206 /* Receiver is only sender */
- #define RCV_INTERRUPTED -207
- #define RCV_PORT_CHANGE -208 /* Port was put in a set */
- #define RCV_ERRORS_END -209
-
- #define msg_return_rcv(x) ((x) < RCV_ERRORS_START && (x) > RCV_ERRORS_END)
-
- #define RPC_SUCCESS 0
-
- /*
- * The IPC primitive functions themselves
- */
-
- msg_return_t msg_send(
- #if defined(c_plusplus) || defined(__STDC__)
- msg_header_t *header,
- msg_option_t option,
- msg_timeout_t timeout);
- #else /* c_plusplus || __STDC__ */
- #if LINTLIBRARY
- header, option, timeout)
- msg_header_t *header;
- msg_option_t option;
- msg_timeout_t timeout;
- { return(SEND_SUCCESS); }
- #else /* LINTLIBRARY */
- );
- #endif /* LINTLIBRARY */
- #endif /* c_plusplus || __STDC__ */
-
- msg_return_t msg_receive(
- #if defined(c_plusplus) || defined(__STDC__)
- msg_header_t *header,
- msg_option_t option,
- msg_timeout_t timeout);
- #else /* c_plusplus || __STDC__ */
- #if LINTLIBRARY
- header, option, timeout)
- msg_header_t *header;
- msg_option_t option;
- msg_timeout_t timeout;
- { return(RCV_SUCCESS); }
- #else /* LINTLIBRARY */
- );
- #endif /* LINTLIBRARY */
- #endif /* c_plusplus || __STDC__ */
-
- msg_return_t msg_rpc(
- #if defined(c_plusplus) || defined(__STDC__)
- msg_header_t *header, /* in/out */
- msg_option_t option,
- msg_size_t rcv_size,
- msg_timeout_t send_timeout,
- msg_timeout_t rcv_timeout);
- #else /* c_plusplus || __STDC__ */
- #if LINTLIBRARY
- header, option, rcv_size,
- send_timeout, rcv_timeout)
- msg_header_t *header; /* in/out */
- msg_option_t option;
- msg_size_t rcv_size;
- msg_timeout_t send_timeout;
- msg_timeout_t rcv_timeout;
- { return(RPC_SUCCESS); }
- #else /* LINTLIBRARY */
- );
- #endif /* LINTLIBRARY */
- #endif /* c_plusplus || __STDC__ */
-
- msg_return_t msg_send_trap(
- #if defined(c_plusplus) || defined(__STDC__)
- msg_header_t *header,
- msg_option_t option,
- msg_size_t send_size,
- msg_timeout_t timeout);
- #else /* c_plusplus || __STDC__ */
- #if LINTLIBRARY
- header, option, send_size, timeout)
- msg_header_t *header;
- msg_option_t option;
- msg_size_t send_size;
- msg_timeout_t timeout;
- { return(SEND_SUCCESS); }
- #else /* LINTLIBRARY */
- );
- #endif /* LINTLIBRARY */
- #endif /* c_plusplus || __STDC__ */
-
- msg_return_t msg_receive_trap(
- #if defined(c_plusplus) || defined(__STDC__)
- msg_header_t *header,
- msg_option_t option,
- msg_size_t rcv_size,
- port_name_t rcv_name,
- msg_timeout_t timeout);
- #else /* c_plusplus || __STDC__ */
- #if LINTLIBRARY
- header, option, rcv_size, rcv_name, timeout)
- msg_header_t *header;
- msg_option_t option;
- msg_size_t rcv_size;
- port_name_t rcv_name;
- msg_timeout_t timeout;
- { return(RCV_SUCCESS); }
- #else /* LINTLIBRARY */
- );
- #endif /* LINTLIBRARY */
- #endif /* c_plusplus || __STDC__ */
-
- msg_return_t msg_rpc_trap(
- #if defined(c_plusplus) || defined(__STDC__)
- msg_header_t *header, /* in/out */
- msg_option_t option,
- msg_size_t send_size,
- msg_size_t rcv_size,
- msg_timeout_t send_timeout,
- msg_timeout_t rcv_timeout);
- #else /* c_plusplus || __STDC__ */
- #if LINTLIBRARY
- header, option, send_size, rcv_size,
- send_timeout, rcv_timeout)
- msg_header_t *header; /* in/out */
- msg_option_t option;
- msg_size_t send_size;
- msg_size_t rcv_size;
- msg_timeout_t send_timeout;
- msg_timeout_t rcv_timeout;
- { return(RPC_SUCCESS); }
- #else /* LINTLIBRARY */
- );
- #endif /* LINTLIBRARY */
- #endif /* c_plusplus || __STDC__ */
-
- #endif /* _MACH_MESSAGE_H_ */
-