2014-12-04 01:11:22 +01:00

104 lines
3.1 KiB
C

/*
* Copyright (c) 2003 Apple Computer, 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
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* 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,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* 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@
*/
/*
* @OSF_COPYRIGHT@
*/
/*
* Define a service to map from a kernel-generated port name
* to server-defined "type" and "value" data to be associated
* with the port.
*/
#ifndef PORT_OBJ_H
#define PORT_OBJ_H
#include <mach/port.h>
struct port_obj_tentry {
void *pos_value;
int pos_type;
};
#include <sys/cdefs.h>
__BEGIN_DECLS
extern void port_obj_init(int);
__END_DECLS
extern struct port_obj_tentry *port_obj_table;
extern int port_obj_table_size;
#ifndef PORT_OBJ_ASSERT
#define port_set_obj_value_type(pname, value, type) \
do { \
int ndx; \
\
if (!port_obj_table) \
port_obj_init(port_obj_table_size); \
ndx = MACH_PORT_INDEX(pname); \
port_obj_table[ndx].pos_value = (value); \
port_obj_table[ndx].pos_type = (type); \
} while (0)
#define port_get_obj_value(pname) \
(port_obj_table[MACH_PORT_INDEX(pname)].pos_value)
#define port_get_obj_type(pname) \
(port_obj_table[MACH_PORT_INDEX(pname)].pos_type)
#else /* PORT_OBJ_ASSERT */
#define port_set_obj_value_type(pname, value, type) \
do { \
int ndx; \
\
if (!port_obj_table) \
port_obj_init(port_obj_table_size); \
ndx = MACH_PORT_INDEX(pname); \
assert(ndx > 0); \
assert(ndx < port_obj_table_size); \
port_obj_table[ndx].pos_value = (value); \
port_obj_table[ndx].pos_type = (type); \
} while (0)
#define port_get_obj_value(pname) \
((MACH_PORT_INDEX(pname) < (unsigned)port_obj_table_size) ? \
port_obj_table[MACH_PORT_INDEX(pname)].pos_value : \
(panic("port_get_obj_value: index too big"), (void *)-1))
#define port_get_obj_type(pname) \
((MACH_PORT_INDEX(pname) < (unsigned)port_obj_table_size) ? \
port_obj_table[MACH_PORT_INDEX(pname)].pos_type : \
(panic("port_get_obj_type: index too big"), -1))
#endif /* PORT_OBJ_ASSERT */
#endif /* PORT_OBJ_H */