… | |
… | |
40 | ev.data.u64 = fd; /* use u64 to fully initialise the struct, for nicer strace etc. */ |
40 | ev.data.u64 = fd; /* use u64 to fully initialise the struct, for nicer strace etc. */ |
41 | ev.events = |
41 | ev.events = |
42 | (nev & EV_READ ? EPOLLIN : 0) |
42 | (nev & EV_READ ? EPOLLIN : 0) |
43 | | (nev & EV_WRITE ? EPOLLOUT : 0); |
43 | | (nev & EV_WRITE ? EPOLLOUT : 0); |
44 | |
44 | |
45 | epoll_ctl (epoll_fd, mode, fd, &ev); |
45 | if (epoll_ctl (backend_fd, mode, fd, &ev)) |
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46 | if (errno != ENOENT /* on ENOENT the fd went away, so try to do the right thing */ |
|
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47 | || (nev && epoll_ctl (backend_fd, EPOLL_CTL_ADD, fd, &ev))) |
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48 | fd_kill (EV_A_ fd); |
46 | } |
49 | } |
47 | |
50 | |
48 | static void |
51 | static void |
49 | epoll_poll (EV_P_ ev_tstamp timeout) |
52 | epoll_poll (EV_P_ ev_tstamp timeout) |
50 | { |
53 | { |
51 | int eventcnt = epoll_wait (epoll_fd, epoll_events, epoll_eventmax, ceil (timeout * 1000.)); |
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52 | int i; |
54 | int i; |
|
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55 | int eventcnt = epoll_wait (backend_fd, epoll_events, epoll_eventmax, (int)ceil (timeout * 1000.)); |
53 | |
56 | |
54 | if (eventcnt < 0) |
57 | if (eventcnt < 0) |
|
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58 | { |
|
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59 | if (errno != EINTR) |
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60 | syserr ("(libev) epoll_wait"); |
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61 | |
55 | return; |
62 | return; |
|
|
63 | } |
56 | |
64 | |
57 | for (i = 0; i < eventcnt; ++i) |
65 | for (i = 0; i < eventcnt; ++i) |
58 | fd_event ( |
66 | fd_event ( |
59 | EV_A_ |
67 | EV_A_ |
60 | epoll_events [i].data.u64, |
68 | epoll_events [i].data.u64, |
… | |
… | |
63 | ); |
71 | ); |
64 | |
72 | |
65 | /* if the receive array was full, increase its size */ |
73 | /* if the receive array was full, increase its size */ |
66 | if (expect_false (eventcnt == epoll_eventmax)) |
74 | if (expect_false (eventcnt == epoll_eventmax)) |
67 | { |
75 | { |
68 | free (epoll_events); |
76 | ev_free (epoll_events); |
69 | epoll_eventmax = array_roundsize (epoll_events, epoll_eventmax << 1); |
77 | epoll_eventmax = array_roundsize (epoll_events, epoll_eventmax << 1); |
70 | epoll_events = malloc (sizeof (struct epoll_event) * epoll_eventmax); |
78 | epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax); |
71 | } |
79 | } |
72 | } |
80 | } |
73 | |
81 | |
74 | static int |
82 | int inline_size |
75 | epoll_init (EV_P_ int flags) |
83 | epoll_init (EV_P_ int flags) |
76 | { |
84 | { |
77 | epoll_fd = epoll_create (256); |
85 | backend_fd = epoll_create (256); |
78 | |
86 | |
79 | if (epoll_fd < 0) |
87 | if (backend_fd < 0) |
80 | return 0; |
88 | return 0; |
81 | |
89 | |
82 | fcntl (epoll_fd, F_SETFD, FD_CLOEXEC); |
90 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); |
83 | |
91 | |
84 | method_fudge = 1e-3; /* needed to compensate for epoll returning early */ |
92 | backend_fudge = 1e-3; /* needed to compensate for epoll returning early */ |
85 | method_modify = epoll_modify; |
93 | backend_modify = epoll_modify; |
86 | method_poll = epoll_poll; |
94 | backend_poll = epoll_poll; |
87 | |
95 | |
88 | epoll_eventmax = 64; /* intiial number of events receivable per poll */ |
96 | epoll_eventmax = 64; /* intiial number of events receivable per poll */ |
89 | epoll_events = malloc (sizeof (struct epoll_event) * epoll_eventmax); |
97 | epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax); |
90 | |
98 | |
91 | return EVMETHOD_EPOLL; |
99 | return EVBACKEND_EPOLL; |
92 | } |
100 | } |
93 | |
101 | |
94 | static void |
102 | void inline_size |
95 | epoll_destroy (EV_P) |
103 | epoll_destroy (EV_P) |
96 | { |
104 | { |
97 | close (epoll_fd); |
|
|
98 | |
|
|
99 | free (epoll_events); |
105 | ev_free (epoll_events); |
100 | } |
106 | } |
101 | |
107 | |
102 | static void |
108 | void inline_size |
103 | epoll_fork (EV_P) |
109 | epoll_fork (EV_P) |
104 | { |
110 | { |
105 | epoll_fd = epoll_create (256); |
111 | close (backend_fd); |
|
|
112 | |
|
|
113 | while ((backend_fd = epoll_create (256)) < 0) |
|
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114 | syserr ("(libev) epoll_create"); |
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|
115 | |
106 | fcntl (epoll_fd, F_SETFD, FD_CLOEXEC); |
116 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); |
107 | |
117 | |
108 | fd_rearm_all (EV_A); |
118 | fd_rearm_all (EV_A); |
109 | } |
119 | } |
110 | |
120 | |