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Annotation of OSKit-Mach/ipc/ipc_target.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1994 The University of Utah and
                      3:  * the Computer Systems Laboratory (CSL).  All rights reserved.
                      4:  *
                      5:  * Permission to use, copy, modify and distribute this software and its
                      6:  * documentation is hereby granted, provided that both the copyright
                      7:  * notice and this permission notice appear in all copies of the
                      8:  * software, derivative works or modified versions, and any portions
                      9:  * thereof, and that both notices appear in supporting documentation.
                     10:  *
                     11:  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
                     12:  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
                     13:  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     14:  *
                     15:  * CSL requests users of this software to return to [email protected] any
                     16:  * improvements that they make and grant CSL redistribution rights.
                     17:  */
                     18: /*
                     19:  *     File:   ipc_target.h
                     20:  *
                     21:  *     Common part of IPC ports and port sets
                     22:  *     representing a target of messages and migrating RPCs.
                     23:  */
                     24: 
                     25: #ifndef        _IPC_IPC_RECEIVER_H_
                     26: #define _IPC_IPC_RECEIVER_H_
                     27: 
                     28: #include "ipc_mqueue.h"
                     29: #include "ipc_object.h"
                     30: #include <mach/rpc.h>
                     31: 
                     32: typedef struct ipc_target {
                     33: 
                     34:        struct ipc_object ipt_object;
                     35: 
                     36:        mach_port_t ipt_name;
                     37:        struct ipc_mqueue ipt_messages;
                     38: 
                     39: #ifdef MIGRATING_THREADS
                     40:        /*** Migrating RPC stuff ***/
                     41: 
                     42:        int ipt_type;
                     43: 
                     44:        /* User entry info for migrating RPC */
                     45:        rpc_info_t ipt_rpcinfo;
                     46: 
                     47:        /* List of available activations, all active but not in use.  */
                     48:        struct Act *ipt_acts;
                     49: 
                     50:        /* TRUE if someone is waiting for an activation from this pool.  */
                     51:        int ipt_waiting;
                     52: #endif /* MIGRATING_THREADS */
                     53: 
                     54: } *ipc_target_t;
                     55: 
                     56: #define IPT_TYPE_MESSAGE_RPC   1
                     57: #define IPT_TYPE_MIGRATE_RPC   2
                     58: 
                     59: void ipc_target_init(struct ipc_target *ipt, mach_port_t name);
                     60: void ipc_target_terminate(struct ipc_target *ipt);
                     61: 
                     62: #define ipt_lock(ipt)          io_lock(&(ipt)->ipt_object)
                     63: #define ipt_unlock(ipt)                io_unlock(&(ipt)->ipt_object)
                     64: #define ipt_reference(ipt)     io_reference(&(ipt)->ipt_object)
                     65: #define ipt_release(ipt)       io_release(&(ipt)->ipt_object)
                     66: #define ipt_check_unlock(ipt)  io_check_unlock(&(ipt)->ipt_object)
                     67: 
                     68: #endif /* _IPC_IPC_RECEIVER_H_ */

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