X-Git-Url: https://git.llucax.com/software/libev.git/blobdiff_plain/408214e3dfe1ba40783a70c02d98b92738bdb979..b7ecda387a714c9e3d208b453360d15bd4cad664:/ev_port.c?ds=inline diff --git a/ev_port.c b/ev_port.c index e6555bb..a84fb7b 100644 --- a/ev_port.c +++ b/ev_port.c @@ -4,29 +4,37 @@ * Copyright (c) 2007 Marc Alexander Lehmann * All rights reserved. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: + * 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. * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * * 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 COPYRIGHT HOLDERS AND CONTRIBUTORS - * "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 COPYRIGHT - * OWNER OR CONTRIBUTORS 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 @@ -36,22 +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 (backend_fd, PORT_SOURCE_FD, fd); - } - else if (0 > + if (0 > port_associate ( backend_fd, PORT_SOURCE_FD, fd, - (nev & EV_READ ? POLLIN : 0) - | (nev & EV_WRITE ? POLLOUT : 0), + (ev & EV_READ ? POLLIN : 0) + | (ev & EV_WRITE ? POLLOUT : 0), 0 ) ) @@ -60,7 +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 @@ -95,20 +110,19 @@ 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 */ @@ -127,15 +141,13 @@ port_init (EV_P_ int flags) return EVBACKEND_PORT; } -static void +void inline_size port_destroy (EV_P) { - close (backend_fd); - ev_free (port_events); } -static void +void inline_size port_fork (EV_P) { close (backend_fd);