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