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1 | /*- |
2 | * BSD LICENSE | |
3 | * | |
4 | * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * * Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * * Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in | |
15 | * the documentation and/or other materials provided with the | |
16 | * distribution. | |
17 | * * Neither the name of Intel Corporation nor the names of its | |
18 | * contributors may be used to endorse or promote products derived | |
19 | * from this software without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
22 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
24 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
25 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
26 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
27 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #ifndef _FD_MAN_H_ | |
35 | #define _FD_MAN_H_ | |
36 | #include <stdint.h> | |
37 | #include <pthread.h> | |
38 | ||
39 | #define MAX_FDS 1024 | |
40 | ||
41 | typedef void (*fd_cb)(int fd, void *dat, int *remove); | |
42 | ||
43 | struct fdentry { | |
44 | int fd; /* -1 indicates this entry is empty */ | |
45 | fd_cb rcb; /* callback when this fd is readable. */ | |
46 | fd_cb wcb; /* callback when this fd is writeable.*/ | |
47 | void *dat; /* fd context */ | |
48 | int busy; /* whether this entry is being used in cb. */ | |
49 | }; | |
50 | ||
51 | struct fdset { | |
52 | struct fdentry fd[MAX_FDS]; | |
53 | pthread_mutex_t fd_mutex; | |
54 | int num; /* current fd number of this fdset */ | |
55 | }; | |
56 | ||
57 | ||
58 | void fdset_init(struct fdset *pfdset); | |
59 | ||
60 | int fdset_add(struct fdset *pfdset, int fd, | |
61 | fd_cb rcb, fd_cb wcb, void *dat); | |
62 | ||
63 | void *fdset_del(struct fdset *pfdset, int fd); | |
64 | ||
65 | void fdset_event_dispatch(struct fdset *pfdset); | |
66 | ||
67 | #endif |