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135 lines
5.1 KiB
C
135 lines
5.1 KiB
C
/*
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* Copyright (c) 2002,2000 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* @OSF_COPYRIGHT@
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*/
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/*
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* Mach RPC Subsystem Interfaces
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*/
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#ifndef _MACH_RPC_H_
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#define _MACH_RPC_H_
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#include <mach/boolean.h>
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#include <mach/kern_return.h>
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#include <mach/port.h>
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#include <mach/vm_types.h>
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#include <mach/mig.h>
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#include <mach/mig_errors.h>
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#include <mach/machine/rpc.h>
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#include <mach/thread_status.h>
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/*
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* These are the types for RPC-specific variants of the MIG routine
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* descriptor and subsystem data types.
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*
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* THIS IS ONLY FOR COMPATIBILITY. WE WILL NOT BE IMPLEMENTING THIS.
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*/
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/*
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* Basic mach rpc types.
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*/
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typedef unsigned int routine_arg_type;
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typedef unsigned int routine_arg_offset;
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typedef unsigned int routine_arg_size;
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/*
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* Definitions for a signature's argument and routine descriptor's.
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*/
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struct rpc_routine_arg_descriptor {
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routine_arg_type type; /* Port, Array, etc. */
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routine_arg_size size; /* element size in bytes */
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routine_arg_size count; /* number of elements */
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routine_arg_offset offset; /* Offset in list of routine args */
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};
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typedef struct rpc_routine_arg_descriptor *rpc_routine_arg_descriptor_t;
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struct rpc_routine_descriptor {
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mig_impl_routine_t impl_routine; /* Server work func pointer */
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mig_stub_routine_t stub_routine; /* Unmarshalling func pointer */
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unsigned int argc; /* Number of argument words */
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unsigned int descr_count; /* Number of complex argument */
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/* descriptors */
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rpc_routine_arg_descriptor_t
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arg_descr; /* Pointer to beginning of */
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/* the arg_descr array */
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unsigned int max_reply_msg; /* Max size for reply msg */
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};
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typedef struct rpc_routine_descriptor *rpc_routine_descriptor_t;
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#define RPC_DESCR_SIZE(x) ((x)->descr_count * \
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sizeof(struct rpc_routine_arg_descriptor))
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struct rpc_signature {
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struct rpc_routine_descriptor rd;
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struct rpc_routine_arg_descriptor rad[1];
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};
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#define RPC_SIGBUF_SIZE 8
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/*
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* A subsystem describes a set of server routines that can be invoked by
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* mach_rpc() on the ports that are registered with the subsystem. For
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* each routine, the routine number is given, along with the
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* address of the implementation function in the server and a
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* description of the arguments of the routine (it's "signature").
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*
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* This structure definition is only a template for what is really a
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* variable-length structure (generated by MIG for each subsystem).
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* The actual structures do not always have one entry in the routine
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* array, and also have a varying number of entries in the arg_descr
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* array. Each routine has an array of zero or more arg descriptors
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* one for each complex arg. These arrays are all catenated together
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* to form the arg_descr field of the subsystem struct. The
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* arg_descr field of each routine entry points to a unique sub-sequence
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* within this catenated array. The goal is to keep everything
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* contiguous.
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*/
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struct rpc_subsystem {
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void *reserved; /* Reserved for system use */
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mach_msg_id_t start; /* Min routine number */
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mach_msg_id_t end; /* Max routine number + 1 */
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unsigned int maxsize; /* Max mach_msg size */
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vm_address_t base_addr; /* Address of this struct in user */
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struct rpc_routine_descriptor /* Array of routine descriptors */
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routine[1 /* Actually, (start-end+1) */
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];
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struct rpc_routine_arg_descriptor
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arg_descriptor[1 /* Actually, the sum of the descr_ */
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]; /* count fields for all routines */
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};
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typedef struct rpc_subsystem *rpc_subsystem_t;
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#define RPC_SUBSYSTEM_NULL ((rpc_subsystem_t) 0)
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#endif /* _MACH_RPC_H_ */
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