Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Newer
Older
100644 88 lines (73 sloc) 2.761 kb
64f36a5 @antirez epoll module for ae.c implemented. Some more testing needed
authored
1 /* Linux epoll(2) based ae.c module
2 * Copyright (C) 2009 Salvatore Sanfilippo - antirez@gmail.com
3 * Released under the BSD license. See the COPYING file for more info. */
4
5 #include <sys/epoll.h>
6
7 typedef struct aeApiState {
8 int epfd;
9 struct epoll_event events[AE_SETSIZE];
10 } aeApiState;
11
12 static int aeApiCreate(aeEventLoop *eventLoop) {
13 aeApiState *state = zmalloc(sizeof(aeApiState));
14
15 if (!state) return -1;
16 state->epfd = epoll_create(1024); /* 1024 is just an hint for the kernel */
17 if (state->epfd == -1) return -1;
18 eventLoop->apidata = state;
19 return 0;
20 }
21
22 static void aeApiFree(aeEventLoop *eventLoop) {
23 aeApiState *state = eventLoop->apidata;
24
25 close(state->epfd);
26 zfree(state);
27 }
28
29 static int aeApiAddEvent(aeEventLoop *eventLoop, int fd, int mask) {
30 aeApiState *state = eventLoop->apidata;
31 struct epoll_event ee;
32 int op = eventLoop->events[fd].mask == AE_NONE ?
33 EPOLL_CTL_ADD : EPOLL_CTL_MOD;
34
35 ee.events = 0;
36 if (mask & AE_READABLE) ee.events |= EPOLLIN;
37 if (mask & AE_WRITABLE) ee.events |= EPOLLOUT;
38 if (mask & AE_EXCEPTION) ee.events |= EPOLLPRI;
214d880 @antirez minor fix to avoid a false valgrind warning.
authored
39 ee.data.u64 = 0; /* avoid valgrind warning */
64f36a5 @antirez epoll module for ae.c implemented. Some more testing needed
authored
40 ee.data.fd = fd;
41 if (epoll_ctl(state->epfd,op,fd,&ee) == -1) return -1;
42 return 0;
43 }
44
45 static void aeApiDelEvent(aeEventLoop *eventLoop, int fd, int delmask) {
46 aeApiState *state = eventLoop->apidata;
47 struct epoll_event ee;
48 int mask = eventLoop->events[fd].mask & (~delmask);
49
50 ee.events = 0;
51 if (mask & AE_READABLE) ee.events |= EPOLLIN;
52 if (mask & AE_WRITABLE) ee.events |= EPOLLOUT;
53 if (mask & AE_EXCEPTION) ee.events |= EPOLLPRI;
214d880 @antirez minor fix to avoid a false valgrind warning.
authored
54 ee.data.u64 = 0; /* avoid valgrind warning */
64f36a5 @antirez epoll module for ae.c implemented. Some more testing needed
authored
55 ee.data.fd = fd;
56 if (mask != AE_NONE) {
57 epoll_ctl(state->epfd,EPOLL_CTL_MOD,fd,&ee);
58 } else {
59 /* Note, Kernel < 2.6.9 requires a non null event pointer even for
60 * EPOLL_CTL_DEL. */
61 epoll_ctl(state->epfd,EPOLL_CTL_DEL,fd,&ee);
62 }
63 }
64
65 static int aeApiPoll(aeEventLoop *eventLoop, struct timeval *tvp) {
66 aeApiState *state = eventLoop->apidata;
67 int retval, numevents = 0;
68
69 retval = epoll_wait(state->epfd,state->events,AE_SETSIZE,
70 tvp ? (tvp->tv_sec*1000 + tvp->tv_usec/1000) : -1);
71 if (retval > 0) {
72 int j;
73
74 numevents = retval;
75 for (j = 0; j < numevents; j++) {
76 int mask = 0;
77 struct epoll_event *e = state->events+j;
78
79 if (e->events & EPOLLIN) mask |= AE_READABLE;
80 if (e->events & EPOLLOUT) mask |= AE_WRITABLE;
81 if (e->events & EPOLLPRI) mask |= AE_EXCEPTION;
82 eventLoop->fired[j].fd = e->data.fd;
83 eventLoop->fired[j].mask = mask;
84 }
85 }
86 return numevents;
87 }
Something went wrong with that request. Please try again.