+++ /dev/null
-/*
- * Copyright (c) 2009-2010 Niels Provos and Nick Mathewson
- *
- * 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.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * 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.
- */
-
-#include "event2/event-config.h"
-
-#ifdef WIN32
-#include <winsock2.h>
-#endif
-#include <sys/types.h>
-#include <sys/stat.h>
-#ifdef _EVENT_HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#include <fcntl.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#ifndef WIN32
-#include <sys/time.h>
-#include <unistd.h>
-#endif
-#include <errno.h>
-
-#include "event2/event.h"
-#include "event2/util.h"
-
-#include "regress.h"
-
-static int was_et = 0;
-
-static void
-read_cb(evutil_socket_t fd, short event, void *arg)
-{
- char buf;
- int len;
-
- len = recv(fd, &buf, sizeof(buf), 0);
-
- /*printf("%s: %s %d%s\n", __func__, event & EV_ET ? "etread" : "read",
- len, len ? "" : " - means EOF");
- */
-
- called++;
- if (event & EV_ET)
- was_et = 1;
-
- if (!len)
- event_del(arg);
-}
-
-#ifndef SHUT_WR
-#define SHUT_WR 1
-#endif
-
-#ifdef WIN32
-#define LOCAL_SOCKETPAIR_AF AF_INET
-#else
-#define LOCAL_SOCKETPAIR_AF AF_UNIX
-#endif
-
-static void
-test_edgetriggered(void *et)
-{
- struct event *ev = NULL;
- struct event_base *base = NULL;
- const char *test = "test string";
- evutil_socket_t pair[2] = {-1,-1};
- int supports_et;
-
- if (evutil_socketpair(LOCAL_SOCKETPAIR_AF, SOCK_STREAM, 0, pair) == -1) {
- tt_abort_perror("socketpair");
- }
-
- called = was_et = 0;
-
- send(pair[0], test, (int)strlen(test)+1, 0);
- shutdown(pair[0], SHUT_WR);
-
- /* Initalize the event library */
- base = event_base_new();
-
- if (!strcmp(event_base_get_method(base), "epoll") ||
- !strcmp(event_base_get_method(base), "epoll (with changelist)") ||
- !strcmp(event_base_get_method(base), "kqueue"))
- supports_et = 1;
- else
- supports_et = 0;
-
- TT_BLATHER(("Checking for edge-triggered events with %s, which should %s"
- "support edge-triggering", event_base_get_method(base),
- supports_et?"":"not "));
-
- /* Initalize one event */
- ev = event_new(base, pair[1], EV_READ|EV_ET|EV_PERSIST, read_cb, &ev);
-
- event_add(ev, NULL);
-
- /* We're going to call the dispatch function twice. The first invocation
- * will read a single byte from pair[1] in either case. If we're edge
- * triggered, we'll only see the event once (since we only see transitions
- * from no data to data), so the second invocation of event_base_loop will
- * do nothing. If we're level triggered, the second invocation of
- * event_base_loop will also activate the event (because there's still
- * data to read). */
- event_base_loop(base,EVLOOP_NONBLOCK|EVLOOP_ONCE);
- event_base_loop(base,EVLOOP_NONBLOCK|EVLOOP_ONCE);
-
- if (supports_et) {
- tt_int_op(called, ==, 1);
- tt_assert(was_et);
- } else {
- tt_int_op(called, ==, 2);
- tt_assert(!was_et);
- }
-
- end:
- if (ev) {
- event_del(ev);
- event_free(ev);
- }
- if (base)
- event_base_free(base);
- evutil_closesocket(pair[0]);
- evutil_closesocket(pair[1]);
-}
-
-static void
-test_edgetriggered_mix_error(void *data_)
-{
- struct basic_test_data *data = data_;
- struct event_base *base = NULL;
- struct event *ev_et=NULL, *ev_lt=NULL;
-
-#ifdef _EVENT_DISABLE_DEBUG_MODE
- if (1)
- tt_skip();
-#endif
-
- event_enable_debug_mode();
-
- base = event_base_new();
-
- /* try mixing edge-triggered and level-triggered to make sure it fails*/
- ev_et = event_new(base, data->pair[0], EV_READ|EV_ET, read_cb, ev_et);
- ev_lt = event_new(base, data->pair[0], EV_READ, read_cb, ev_lt);
-
- /* Add edge-triggered, then level-triggered. Get an error. */
- tt_int_op(0, ==, event_add(ev_et, NULL));
- tt_int_op(-1, ==, event_add(ev_lt, NULL));
- tt_int_op(EV_READ, ==, event_pending(ev_et, EV_READ, NULL));
- tt_int_op(0, ==, event_pending(ev_lt, EV_READ, NULL));
-
- tt_int_op(0, ==, event_del(ev_et));
- /* Add level-triggered, then edge-triggered. Get an error. */
- tt_int_op(0, ==, event_add(ev_lt, NULL));
- tt_int_op(-1, ==, event_add(ev_et, NULL));
- tt_int_op(EV_READ, ==, event_pending(ev_lt, EV_READ, NULL));
- tt_int_op(0, ==, event_pending(ev_et, EV_READ, NULL));
-
-end:
- if (ev_et)
- event_free(ev_et);
- if (ev_lt)
- event_free(ev_lt);
- if (base)
- event_base_free(base);
-}
-
-struct testcase_t edgetriggered_testcases[] = {
- { "et", test_edgetriggered, TT_FORK, NULL, NULL },
- { "et_mix_error", test_edgetriggered_mix_error,
- TT_FORK|TT_NEED_SOCKETPAIR|TT_NO_LOGS, &basic_setup, NULL },
- END_OF_TESTCASES
-};
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