… | |
… | |
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 | if (epoll_ctl (epoll_fd, mode, fd, &ev)) |
45 | if (epoll_ctl (backend_fd, mode, fd, &ev)) |
46 | if (errno != ENOENT /* on ENOENT the fd went away, so try to do the right thing */ |
46 | if (errno != ENOENT /* on ENOENT the fd went away, so try to do the right thing */ |
47 | || (nev && epoll_ctl (epoll_fd, EPOLL_CTL_ADD, fd, &ev))) |
47 | || (nev && epoll_ctl (backend_fd, EPOLL_CTL_ADD, fd, &ev))) |
48 | fd_kill (EV_A_ fd); |
48 | fd_kill (EV_A_ fd); |
49 | } |
49 | } |
50 | |
50 | |
51 | static void |
51 | static void |
52 | epoll_poll (EV_P_ ev_tstamp timeout) |
52 | epoll_poll (EV_P_ ev_tstamp timeout) |
53 | { |
53 | { |
54 | int i; |
54 | int i; |
55 | int eventcnt = epoll_wait (epoll_fd, epoll_events, epoll_eventmax, (int)ceil (timeout * 1000.)); |
55 | int eventcnt = epoll_wait (backend_fd, epoll_events, epoll_eventmax, (int)ceil (timeout * 1000.)); |
56 | |
56 | |
57 | if (eventcnt < 0) |
57 | if (eventcnt < 0) |
58 | { |
58 | { |
59 | if (errno != EINTR) |
59 | if (errno != EINTR) |
60 | syserr ("(libev) epoll_wait"); |
60 | syserr ("(libev) epoll_wait"); |
… | |
… | |
72 | |
72 | |
73 | /* if the receive array was full, increase its size */ |
73 | /* if the receive array was full, increase its size */ |
74 | if (expect_false (eventcnt == epoll_eventmax)) |
74 | if (expect_false (eventcnt == epoll_eventmax)) |
75 | { |
75 | { |
76 | ev_free (epoll_events); |
76 | ev_free (epoll_events); |
77 | epoll_eventmax = array_roundsize (epoll_events, epoll_eventmax << 1); |
77 | epoll_eventmax = array_nextsize (sizeof (struct epoll_event), epoll_eventmax, epoll_eventmax + 1); |
78 | epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax); |
78 | epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax); |
79 | } |
79 | } |
80 | } |
80 | } |
81 | |
81 | |
82 | static int |
82 | int inline_size |
83 | epoll_init (EV_P_ int flags) |
83 | epoll_init (EV_P_ int flags) |
84 | { |
84 | { |
85 | epoll_fd = epoll_create (256); |
85 | backend_fd = epoll_create (256); |
86 | |
86 | |
87 | if (epoll_fd < 0) |
87 | if (backend_fd < 0) |
88 | return 0; |
88 | return 0; |
89 | |
89 | |
90 | fcntl (epoll_fd, F_SETFD, FD_CLOEXEC); |
90 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); |
91 | |
91 | |
92 | method_fudge = 1e-3; /* needed to compensate for epoll returning early */ |
92 | backend_fudge = 1e-3; /* needed to compensate for epoll returning early */ |
93 | method_modify = epoll_modify; |
93 | backend_modify = epoll_modify; |
94 | method_poll = epoll_poll; |
94 | backend_poll = epoll_poll; |
95 | |
95 | |
96 | epoll_eventmax = 64; /* intiial number of events receivable per poll */ |
96 | epoll_eventmax = 64; /* intiial number of events receivable per poll */ |
97 | epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax); |
97 | epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax); |
98 | |
98 | |
99 | return EVMETHOD_EPOLL; |
99 | return EVBACKEND_EPOLL; |
100 | } |
100 | } |
101 | |
101 | |
102 | static void |
102 | void inline_size |
103 | epoll_destroy (EV_P) |
103 | epoll_destroy (EV_P) |
104 | { |
104 | { |
105 | close (epoll_fd); |
|
|
106 | |
|
|
107 | ev_free (epoll_events); |
105 | ev_free (epoll_events); |
108 | } |
106 | } |
109 | |
107 | |
110 | static void |
108 | void inline_size |
111 | epoll_fork (EV_P) |
109 | epoll_fork (EV_P) |
112 | { |
110 | { |
113 | close (epoll_fd); |
111 | close (backend_fd); |
114 | |
112 | |
115 | while ((epoll_fd = epoll_create (256)) < 0) |
113 | while ((backend_fd = epoll_create (256)) < 0) |
116 | syserr ("(libev) epoll_create"); |
114 | syserr ("(libev) epoll_create"); |
117 | |
115 | |
118 | fcntl (epoll_fd, F_SETFD, FD_CLOEXEC); |
116 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); |
119 | |
117 | |
120 | fd_rearm_all (EV_A); |
118 | fd_rearm_all (EV_A); |
121 | } |
119 | } |
122 | |
120 | |