X-Git-Url: https://git.llucax.com/software/libev.git/blobdiff_plain/cff78812ebbcab7601919f479447150fb7c2c9f4..refs/heads/master:/ev_port.c diff --git a/ev_port.c b/ev_port.c index d051671..a84fb7b 100644 --- a/ev_port.c +++ b/ev_port.c @@ -1,26 +1,40 @@ /* - * Copyright 2007 Marc Alexander Lehmann + * libev solaris event port backend * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: + * Copyright (c) 2007 Marc Alexander Lehmann + * All rights reserved. * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. + * Redistribution and use in source and binary forms, with or without modifica- + * tion, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- + * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- + * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- + * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * Alternatively, the contents of this file may be used under the terms of + * the GNU General Public License ("GPL") version 2 or any later version, + * in which case the provisions of the GPL are applicable instead of + * the above. If you wish to allow the use of your version of this file + * only under the terms of the GPL and not to allow others to use your + * version of this file under the BSD license, indicate your decision + * by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL. If you do not delete the + * provisions above, a recipient may use your version of this file under + * either the BSD or the GPL. */ #include @@ -30,22 +44,14 @@ #include #include -static void -port_modify (EV_P_ int fd, int oev, int nev) +void inline_speed +port_associate_and_check (EV_P_ int fd, int ev) { - /* we need to reassociate no matter what, as closes are - * once more silently being discarded. - */ - if (!nev) - { - if (oev) - port_dissociate (port_fd, PORT_SOURCE_FD, fd); - } - else if (0 > + if (0 > port_associate ( - port_fd, PORT_SOURCE_FD, fd, - (nev & EV_READ ? POLLIN : 0) - | (nev & EV_WRITE ? POLLOUT : 0), + backend_fd, PORT_SOURCE_FD, fd, + (ev & EV_READ ? POLLIN : 0) + | (ev & EV_WRITE ? POLLOUT : 0), 0 ) ) @@ -54,7 +60,22 @@ port_modify (EV_P_ int fd, int oev, int nev) fd_kill (EV_A_ fd); else syserr ("(libev) port_associate"); - } + } +} + +static void +port_modify (EV_P_ int fd, int oev, int nev) +{ + /* we need to reassociate no matter what, as closes are + * once more silently being discarded. + */ + if (!nev) + { + if (oev) + port_dissociate (backend_fd, PORT_SOURCE_FD, fd); + } + else + port_associate_and_check (EV_A_ fd, nev); } static void @@ -66,7 +87,7 @@ port_poll (EV_P_ ev_tstamp timeout) ts.tv_sec = (time_t)timeout; ts.tv_nsec = (long)(timeout - (ev_tstamp)ts.tv_sec) * 1e9; - res = port_getn (port_fd, port_events, port_eventmax, &nget, &ts); + res = port_getn (backend_fd, port_events, port_eventmax, &nget, &ts); if (res < 0) { @@ -89,31 +110,30 @@ port_poll (EV_P_ ev_tstamp timeout) | (port_events [i].portev_events & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0) ); - anfds [fd].events = 0; /* event received == disassociated */ - fd_change (EV_A_ fd); /* need to reify later */ + port_associate_and_check (EV_A_ fd, anfds [fd].events); } } if (expect_false (nget == port_eventmax)) { ev_free (port_events); - port_eventmax = array_roundsize (port_event_t, port_eventmax << 1); + port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1); port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); } } -static int +int inline_size port_init (EV_P_ int flags) { /* Initalize the kernel queue */ - if ((port_fd = port_create ()) < 0) + if ((backend_fd = port_create ()) < 0) return 0; - fcntl (port_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ + fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ - method_fudge = 1e-3; /* needed to compensate for port_getn returning early */ - method_modify = port_modify; - method_poll = port_poll; + backend_fudge = 1e-3; /* needed to compensate for port_getn returning early */ + backend_modify = port_modify; + backend_poll = port_poll; port_eventmax = 64; /* intiial number of events receivable per poll */ port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); @@ -121,23 +141,21 @@ port_init (EV_P_ int flags) return EVBACKEND_PORT; } -static void +void inline_size port_destroy (EV_P) { - close (port_fd); - ev_free (port_events); } -static void +void inline_size port_fork (EV_P) { - close (port_fd); + close (backend_fd); - while ((port_fd = port_create ()) < 0) + while ((backend_fd = port_create ()) < 0) syserr ("(libev) port"); - fcntl (port_fd, F_SETFD, FD_CLOEXEC); + fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* re-register interest in fds */ fd_rearm_all (EV_A);