async.h

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00001 /*
00002  * Copyright (c) 2006 Ondrej Palkovsky
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  *
00009  * - Redistributions of source code must retain the above copyright
00010  *   notice, this list of conditions and the following disclaimer.
00011  * - Redistributions in binary form must reproduce the above copyright
00012  *   notice, this list of conditions and the following disclaimer in the
00013  *   documentation and/or other materials provided with the distribution.
00014  * - The name of the author may not be used to endorse or promote products
00015  *   derived from this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
00018  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00019  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
00020  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
00021  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
00022  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00023  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00024  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00025  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
00026  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00027  */
00028 
00035 #ifndef LIBC_PRIVATE_ASYNC_H_
00036 #define LIBC_PRIVATE_ASYNC_H_
00037 
00038 #include <adt/list.h>
00039 #include <fibril.h>
00040 #include <sys/time.h>
00041 #include <bool.h>
00042 
00044 typedef struct {
00046         bool inlist;
00047         
00049         link_t link;
00050         
00052         bool occurred;
00053         
00055         struct timeval expires;
00056 } to_event_t;
00057 
00059 typedef struct {
00061         bool inlist;
00062         
00064         link_t link;
00065 } wu_event_t;
00066 
00068 typedef struct {
00070         fid_t fid;
00071         
00073         bool active;
00074         
00076         to_event_t to_event;
00078         wu_event_t wu_event;
00079 } awaiter_t;
00080 
00081 extern void __async_init(void);
00082 extern void async_insert_timeout(awaiter_t *);
00083 
00084 #endif
00085 

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