2 * libev solaris event port backend
4 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met:
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40 #include <sys/types.h>
48 port_associate_and_check (EV_P_ int fd, int ev)
52 backend_fd, PORT_SOURCE_FD, fd,
53 (ev & EV_READ ? POLLIN : 0)
54 | (ev & EV_WRITE ? POLLOUT : 0),
62 syserr ("(libev) port_associate");
67 port_modify (EV_P_ int fd, int oev, int nev)
69 /* we need to reassociate no matter what, as closes are
70 * once more silently being discarded.
75 port_dissociate (backend_fd, PORT_SOURCE_FD, fd);
78 port_associate_and_check (EV_A_ fd, nev);
82 port_poll (EV_P_ ev_tstamp timeout)
88 ts.tv_sec = (time_t)timeout;
89 ts.tv_nsec = (long)(timeout - (ev_tstamp)ts.tv_sec) * 1e9;
90 res = port_getn (backend_fd, port_events, port_eventmax, &nget, &ts);
94 if (errno != EINTR && errno != ETIME)
95 syserr ("(libev) port_getn");
100 for (i = 0; i < nget; ++i)
102 if (port_events [i].portev_source == PORT_SOURCE_FD)
104 int fd = port_events [i].portev_object;
109 (port_events [i].portev_events & (POLLOUT | POLLERR | POLLHUP) ? EV_WRITE : 0)
110 | (port_events [i].portev_events & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0)
113 port_associate_and_check (EV_A_ fd, anfds [fd].events);
117 if (expect_false (nget == port_eventmax))
119 ev_free (port_events);
120 port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1);
121 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
126 port_init (EV_P_ int flags)
128 /* Initalize the kernel queue */
129 if ((backend_fd = port_create ()) < 0)
132 fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
134 backend_fudge = 1e-3; /* needed to compensate for port_getn returning early */
135 backend_modify = port_modify;
136 backend_poll = port_poll;
138 port_eventmax = 64; /* intiial number of events receivable per poll */
139 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
141 return EVBACKEND_PORT;
147 ev_free (port_events);
155 while ((backend_fd = port_create ()) < 0)
156 syserr ("(libev) port");
158 fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
160 /* re-register interest in fds */