Annotation of prex-old/sys/include/ipc.h, Revision 1.1
1.1 ! nbrk 1: /*-
! 2: * Copyright (c) 2005, Kohsuke Ohtani
! 3: * All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: * 1. Redistributions of source code must retain the above copyright
! 9: * notice, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: * 3. Neither the name of the author nor the names of any co-contributors
! 14: * may be used to endorse or promote products derived from this software
! 15: * without specific prior written permission.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: */
! 29:
! 30: #ifndef _IPC_H
! 31: #define _IPC_H
! 32:
! 33: #include <queue.h>
! 34:
! 35: struct thread;
! 36:
! 37: struct object {
! 38: int magic; /* magic number */
! 39: char name[MAXOBJNAME]; /* object name */
! 40: struct list name_link; /* list for name hash table */
! 41: struct list task_link; /* link all objects in same task */
! 42: task_t owner; /* owner task of this object */
! 43: struct queue sendq; /* queue for sender threads */
! 44: struct queue recvq; /* queue for receiver threads */
! 45: };
! 46:
! 47: #define object_valid(obj) (kern_area(obj) && ((obj)->magic == OBJECT_MAGIC))
! 48:
! 49: /*
! 50: * Message header
! 51: */
! 52: struct msg_header {
! 53: task_t task; /* id of a sender task */
! 54: int code; /* message code */
! 55: int status; /* return status */
! 56: };
! 57:
! 58: extern int object_create(const char *, object_t *);
! 59: extern int object_lookup(const char *, object_t *);
! 60: extern int object_destroy(object_t);
! 61: extern void object_init(void);
! 62: extern void object_dump(void);
! 63:
! 64: extern int msg_send(object_t, void *, size_t);
! 65: extern int msg_receive(object_t, void *, size_t);
! 66: extern int msg_reply(object_t, void *, size_t);
! 67: extern void msg_cleanup(struct thread *);
! 68: extern void msg_cancel(struct object *);
! 69: extern void msg_init(void);
! 70:
! 71: #endif /* !_IPC_H */
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