Annotation of OSKit-Mach/ipc/ipc_init.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Mach Operating System
                      3:  * Copyright (c) 1991,1990,1989 Carnegie Mellon University.
                      4:  * Copyright (c) 1993,1994 The University of Utah and
                      5:  * the Computer Systems Laboratory (CSL).
                      6:  * All rights reserved.
                      7:  *
                      8:  * Permission to use, copy, modify and distribute this software and its
                      9:  * documentation is hereby granted, provided that both the copyright
                     10:  * notice and this permission notice appear in all copies of the
                     11:  * software, derivative works or modified versions, and any portions
                     12:  * thereof, and that both notices appear in supporting documentation.
                     13:  *
                     14:  * CARNEGIE MELLON, THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF
                     15:  * THIS SOFTWARE IN ITS "AS IS" CONDITION, AND DISCLAIM ANY LIABILITY
                     16:  * OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF
                     17:  * THIS SOFTWARE.
                     18:  *
                     19:  * Carnegie Mellon requests users of this software to return to
                     20:  *
                     21:  *  Software Distribution Coordinator  or  [email protected]
                     22:  *  School of Computer Science
                     23:  *  Carnegie Mellon University
                     24:  *  Pittsburgh PA 15213-3890
                     25:  *
                     26:  * any improvements or extensions that they make and grant Carnegie Mellon
                     27:  * the rights to redistribute these changes.
                     28:  */
                     29: /*
                     30:  *     File:   ipc/ipc_init.c
                     31:  *     Author: Rich Draves
                     32:  *     Date:   1989
                     33:  *
                     34:  *     Functions to initialize the IPC system.
                     35:  */
                     36: 
                     37: #include <mach/kern_return.h>
                     38: #include <kern/mach_param.h>
                     39: #include <kern/ipc_host.h>
                     40: #include <vm/vm_map.h>
                     41: #include <vm/vm_kern.h>
                     42: #include <ipc/ipc_entry.h>
                     43: #include <ipc/ipc_space.h>
                     44: #include <ipc/ipc_object.h>
                     45: #include <ipc/ipc_port.h>
                     46: #include <ipc/ipc_pset.h>
                     47: #include <ipc/ipc_marequest.h>
                     48: #include <ipc/ipc_notify.h>
                     49: #include <ipc/ipc_kmsg.h>
                     50: #include <ipc/ipc_hash.h>
                     51: #include <ipc/ipc_init.h>
                     52: 
                     53: 
                     54: 
                     55: vm_map_t ipc_kernel_map;
                     56: vm_size_t ipc_kernel_map_size = 1024 * 1024;
                     57: 
                     58: int ipc_space_max = SPACE_MAX;
                     59: int ipc_tree_entry_max = ITE_MAX;
                     60: int ipc_port_max = PORT_MAX;
                     61: int ipc_pset_max = SET_MAX;
                     62: 
                     63: /*
                     64:  *     Routine:        ipc_bootstrap
                     65:  *     Purpose:
                     66:  *             Initialization needed before the kernel task
                     67:  *             can be created.
                     68:  */
                     69: 
                     70: void
                     71: ipc_bootstrap(void)
                     72: {
                     73:        kern_return_t kr;
                     74: 
                     75:        ipc_port_multiple_lock_init();
                     76: 
                     77:        ipc_port_timestamp_lock_init();
                     78:        ipc_port_timestamp_data = 0;
                     79: 
                     80:        ipc_space_zone = zinit(sizeof(struct ipc_space),
                     81:                               ipc_space_max * sizeof(struct ipc_space),
                     82:                               sizeof(struct ipc_space),
                     83:                               IPC_ZONE_TYPE, "ipc spaces");
                     84: 
                     85:        ipc_tree_entry_zone =
                     86:                zinit(sizeof(struct ipc_tree_entry),
                     87:                        ipc_tree_entry_max * sizeof(struct ipc_tree_entry),
                     88:                        sizeof(struct ipc_tree_entry),
                     89:                        IPC_ZONE_TYPE, "ipc tree entries");
                     90: 
                     91:        ipc_object_zones[IOT_PORT] =
                     92:                zinit(sizeof(struct ipc_port),
                     93:                      ipc_port_max * sizeof(struct ipc_port),
                     94:                      sizeof(struct ipc_port),
                     95:                      0, "ipc ports");
                     96: 
                     97:        ipc_object_zones[IOT_PORT_SET] =
                     98:                zinit(sizeof(struct ipc_pset),
                     99:                      ipc_pset_max * sizeof(struct ipc_pset),
                    100:                      sizeof(struct ipc_pset),
                    101:                      IPC_ZONE_TYPE, "ipc port sets");
                    102: 
                    103:        /* create special spaces */
                    104: 
                    105:        kr = ipc_space_create_special(&ipc_space_kernel);
                    106:        assert(kr == KERN_SUCCESS);
                    107: 
                    108:        kr = ipc_space_create_special(&ipc_space_reply);
                    109:        assert(kr == KERN_SUCCESS);
                    110: 
                    111: #if    NORMA_IPC
                    112:        kr = ipc_space_create_special(&ipc_space_remote);
                    113:        assert(kr == KERN_SUCCESS);
                    114: #endif /* NORMA_IPC */
                    115: 
                    116:        /* initialize modules with hidden data structures */
                    117: 
                    118:        ipc_table_init();
                    119:        ipc_notify_init();
                    120:        ipc_hash_init();
                    121:        ipc_marequest_init();
                    122: }
                    123: 
                    124: /*
                    125:  *     Routine:        ipc_init
                    126:  *     Purpose:
                    127:  *             Final initialization of the IPC system.
                    128:  */
                    129: 
                    130: void
                    131: ipc_init()
                    132: {
                    133:        vm_offset_t min, max;
                    134: 
                    135:        ipc_kernel_map = kmem_suballoc(kernel_map, &min, &max,
                    136:                                       ipc_kernel_map_size, TRUE);
                    137: 
                    138:        ipc_host_init();
                    139: }

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