--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/server/daemon/event_linux.c Tue Jan 01 13:32:04 2013 +0100
@@ -0,0 +1,159 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2011 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, 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 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 HOLDER 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/epoll.h>
+
+#include "../util/systhr.h"
+#include "../util/atomic.h"
+
+
+#include "event.h"
+#include "event_linux.h"
+
+
+event_handler_t* evhandler_create(int numthreads) {
+ event_handler_t *ev = malloc(sizeof(event_handler_t));
+ if(ev == NULL) {
+ return NULL;
+ }
+
+ ev->ep = calloc(numthreads, sizeof(int));
+ if(ev->ep == NULL) {
+ free(ev);
+ return NULL;
+ }
+ ev->nep = numthreads;
+ ev->lep = 0;
+
+ /* create ports event threads */
+ for(int i=0;i<numthreads;i++) {
+ /* create port */
+ ev->ep[i] = epoll_create(64);
+ if(ev->ep[i] == 0) {
+ free(ev->ep);
+ free(ev);
+ return NULL;
+ }
+
+ /*
+ * start a new handler thread
+ * the thread needs the event port and a pointer to the event handler
+ */
+ ev_thr_conf_t *conf = malloc(sizeof(ev_thr_conf_t));
+ if(conf == NULL) {
+ free(ev->ep);
+ free(ev);
+ return NULL;
+ }
+ conf->handler = ev;
+ conf->ep = ev->ep[i];
+
+ ev_thr_conf_t *thrconf = malloc(sizeof(ev_thr_conf_t));
+ thrconf->handler = ev;
+ thrconf->ep= ev->ep[i];
+ systhread_start(0, 0, (thrstartfunc)ev_handle_events, thrconf);
+ /* TODO: error handling */
+ }
+
+ return ev;
+}
+
+
+void ev_handle_events(ev_thr_conf_t *conf) {
+ event_handler_t *ev = conf->handler;
+ int ep = conf->ep;
+
+ free(conf);
+
+ //port_event_t events[16];
+ struct epoll_event events[16];
+ struct timespec timeout;
+ timeout.tv_nsec = 0;
+ timeout.tv_sec = 600;
+
+ for(;;) {
+ /* wait for events */
+ int ret = epoll_wait(ep, events, 16, 0);
+ if(ret == -1) {
+ /* TODO: check for error */
+ perror("epoll_wait");
+ continue;
+ }
+
+ for(int i=0;i<ret;i++) {
+ event_t *event = events[i].data.ptr;
+ if(event->fn) {
+ if(!event->fn(ev, event)) {
+ // event fn returned 0 -> remove event from epoll
+ if(epoll_ctl(ep, EPOLL_CTL_DEL, event->object, NULL) != 0){
+ perror("epoll_ctl");
+ }
+ }
+ }
+ }
+ }
+}
+
+/* returns a event handler port */
+int ev_get_port(event_handler_t *h) {
+ int nps = h->nep;
+ if(nps == 1) {
+ return h->ep[0];
+ }
+
+ int cp = h->lep % nps;
+ ws_atomic_inc32(&h->lep);
+
+ return h->ep[cp];
+}
+
+int ev_pollin(event_handler_t *h, int fd, event_t *event) {
+ event->object = (intptr_t)fd;
+ struct epoll_event epev;
+ epev.events = EPOLLIN | EPOLLET; /* input event, edge triggered */
+ epev.data.ptr = event;
+ return epoll_ctl(ev_get_port(h), EPOLL_CTL_ADD, fd, &epev);
+}
+
+int ev_pollout(event_handler_t *h, int fd, event_t *event) {
+ event->object = (intptr_t)fd;
+ struct epoll_event epev;
+ epev.events = EPOLLOUT | EPOLLET; /* input event, edge triggered */
+ epev.data.ptr = event;
+ return epoll_ctl(ev_get_port(h), EPOLL_CTL_ADD, fd, &epev);
+}
+
+int evt_send(event_handler_t *h, event_t *event) {
+ event->object = 0;
+ // TODO: implement using threadpool
+ fprintf(stderr, "Warning: evt_send not implemented\n");
+ return 0;
+}