NetBSD/regress/lib/libevent/eventtest.c

660 lines
12 KiB
C

/* $NetBSD: eventtest.c,v 1.4 2005/04/17 07:20:00 provos Exp $ */
/*
* Copyright (c) 2003, 2004 Niels Provos <provos@citi.umich.edu>
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Niels Provos.
* 4. 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 <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/signal.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <event.h>
static int pair[2];
static int test_ok;
static int called;
static char wbuf[4096];
static char rbuf[4096];
static int woff;
static int roff;
static int usepersist;
static struct timeval tset;
static struct timeval tcalled;
static struct event_base *event_base;
#define TEST1 "this is a test"
#define SECONDS 1
void
simple_read_cb(int fd, short event, void *arg)
{
char buf[256];
int len;
len = read(fd, buf, sizeof(buf));
if (len) {
if (!called) {
if (event_add(arg, NULL) == -1)
exit(1);
}
} else if (called == 1)
test_ok = 1;
called++;
}
void
simple_write_cb(int fd, short event, void *arg)
{
int len;
len = write(fd, TEST1, strlen(TEST1) + 1);
if (len == -1)
test_ok = 0;
else
test_ok = 1;
}
void
multiple_write_cb(int fd, short event, void *arg)
{
struct event *ev = arg;
int len;
len = 128;
if (woff + len >= sizeof(wbuf))
len = sizeof(wbuf) - woff;
len = write(fd, wbuf + woff, len);
if (len == -1) {
fprintf(stderr, "%s: write\n", __func__);
if (usepersist)
event_del(ev);
return;
}
woff += len;
if (woff >= sizeof(wbuf)) {
shutdown(fd, SHUT_WR);
if (usepersist)
event_del(ev);
return;
}
if (!usepersist) {
if (event_add(ev, NULL) == -1)
exit(1);
}
}
void
multiple_read_cb(int fd, short event, void *arg)
{
struct event *ev = arg;
int len;
len = read(fd, rbuf + roff, sizeof(rbuf) - roff);
if (len == -1)
fprintf(stderr, "%s: read\n", __func__);
if (len <= 0) {
if (usepersist)
event_del(ev);
return;
}
roff += len;
if (!usepersist) {
if (event_add(ev, NULL) == -1)
exit(1);
}
}
void
timeout_cb(int fd, short event, void *arg)
{
struct timeval tv;
int diff;
gettimeofday(&tcalled, NULL);
if (timercmp(&tcalled, &tset, >))
timersub(&tcalled, &tset, &tv);
else
timersub(&tset, &tcalled, &tv);
diff = tv.tv_sec*1000 + tv.tv_usec/1000 - SECONDS * 1000;
if (diff < 0)
diff = -diff;
if (diff < 100)
test_ok = 1;
}
void
signal_cb(int fd, short event, void *arg)
{
struct event *ev = arg;
signal_del(ev);
test_ok = 1;
}
struct both {
struct event ev;
int nread;
};
void
combined_read_cb(int fd, short event, void *arg)
{
struct both *both = arg;
char buf[128];
int len;
len = read(fd, buf, sizeof(buf));
if (len == -1)
fprintf(stderr, "%s: read\n", __func__);
if (len <= 0)
return;
both->nread += len;
if (event_add(&both->ev, NULL) == -1)
exit(1);
}
void
combined_write_cb(int fd, short event, void *arg)
{
struct both *both = arg;
char buf[128];
int len;
len = sizeof(buf);
if (len > both->nread)
len = both->nread;
len = write(fd, buf, len);
if (len == -1)
fprintf(stderr, "%s: write\n", __func__);
if (len <= 0) {
shutdown(fd, SHUT_WR);
return;
}
both->nread -= len;
if (event_add(&both->ev, NULL) == -1)
exit(1);
}
/* Test infrastructure */
int
setup_test(char *name)
{
fprintf(stdout, "%s", name);
if (socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1) {
fprintf(stderr, "%s: socketpair\n", __func__);
exit(1);
}
if (fcntl(pair[0], F_SETFL, O_NONBLOCK) == -1)
warn("fcntl(O_NONBLOCK)");
if (fcntl(pair[1], F_SETFL, O_NONBLOCK) == -1)
warn("fcntl(O_NONBLOCK)");
test_ok = 0;
called = 0;
return (0);
}
int
cleanup_test(void)
{
close(pair[0]);
close(pair[1]);
if (test_ok)
fprintf(stdout, "OK\n");
else {
fprintf(stdout, "FAILED\n");
exit(1);
}
return (0);
}
void
test1(void)
{
struct event ev;
/* Very simple read test */
setup_test("Simple read: ");
write(pair[0], TEST1, strlen(TEST1)+1);
shutdown(pair[0], SHUT_WR);
event_set(&ev, pair[1], EV_READ, simple_read_cb, &ev);
if (event_add(&ev, NULL) == -1)
exit(1);
event_dispatch();
cleanup_test();
}
void
test2(void)
{
struct event ev;
/* Very simple write test */
setup_test("Simple write: ");
event_set(&ev, pair[0], EV_WRITE, simple_write_cb, &ev);
if (event_add(&ev, NULL) == -1)
exit(1);
event_dispatch();
cleanup_test();
}
void
test3(void)
{
struct event ev, ev2;
int i;
/* Multiple read and write test */
setup_test("Multiple read/write: ");
memset(rbuf, 0, sizeof(rbuf));
for (i = 0; i < sizeof(wbuf); i++)
wbuf[i] = i;
roff = woff = 0;
usepersist = 0;
event_set(&ev, pair[0], EV_WRITE, multiple_write_cb, &ev);
if (event_add(&ev, NULL) == -1)
exit(1);
event_set(&ev2, pair[1], EV_READ, multiple_read_cb, &ev2);
if (event_add(&ev2, NULL) == -1)
exit(1);
event_dispatch();
if (roff == woff)
test_ok = memcmp(rbuf, wbuf, sizeof(wbuf)) == 0;
cleanup_test();
}
void
test4(void)
{
struct event ev, ev2;
int i;
/* Multiple read and write test with persist */
setup_test("Persist read/write: ");
memset(rbuf, 0, sizeof(rbuf));
for (i = 0; i < sizeof(wbuf); i++)
wbuf[i] = i;
roff = woff = 0;
usepersist = 1;
event_set(&ev, pair[0], EV_WRITE|EV_PERSIST, multiple_write_cb, &ev);
if (event_add(&ev, NULL) == -1)
exit(1);
event_set(&ev2, pair[1], EV_READ|EV_PERSIST, multiple_read_cb, &ev2);
if (event_add(&ev2, NULL) == -1)
exit(1);
event_dispatch();
if (roff == woff)
test_ok = memcmp(rbuf, wbuf, sizeof(wbuf)) == 0;
cleanup_test();
}
void
test5(void)
{
struct both r1, r2, w1, w2;
setup_test("Combined read/write: ");
memset(&r1, 0, sizeof(r1));
memset(&r2, 0, sizeof(r2));
memset(&w1, 0, sizeof(w1));
memset(&w2, 0, sizeof(w2));
w1.nread = 4096;
w2.nread = 8192;
event_set(&r1.ev, pair[0], EV_READ, combined_read_cb, &r1);
event_set(&w1.ev, pair[0], EV_WRITE, combined_write_cb, &w1);
event_set(&r2.ev, pair[1], EV_READ, combined_read_cb, &r2);
event_set(&w2.ev, pair[1], EV_WRITE, combined_write_cb, &w2);
if (event_add(&r1.ev, NULL) == -1)
exit(1);
if (event_add(&w1.ev, NULL))
exit(1);
if (event_add(&r2.ev, NULL))
exit(1);
if (event_add(&w2.ev, NULL))
exit(1);
event_dispatch();
if (r1.nread == 8192 && r2.nread == 4096)
test_ok = 1;
cleanup_test();
}
void
test6(void)
{
struct timeval tv;
struct event ev;
setup_test("Simple timeout: ");
tv.tv_usec = 0;
tv.tv_sec = SECONDS;
evtimer_set(&ev, timeout_cb, NULL);
evtimer_add(&ev, &tv);
gettimeofday(&tset, NULL);
event_dispatch();
cleanup_test();
}
void
test7(void)
{
struct event ev;
struct itimerval itv;
setup_test("Simple signal: ");
signal_set(&ev, SIGALRM, signal_cb, &ev);
signal_add(&ev, NULL);
memset(&itv, 0, sizeof(itv));
itv.it_value.tv_sec = 1;
if (setitimer(ITIMER_REAL, &itv, NULL) == -1)
goto skip_simplesignal;
event_dispatch();
skip_simplesignal:
signal_del(&ev);
cleanup_test();
}
void
test8(void)
{
struct timeval tv, tv_start, tv_end;
struct event ev;
setup_test("Loop exit: ");
tv.tv_usec = 0;
tv.tv_sec = 60*60*24;
evtimer_set(&ev, timeout_cb, NULL);
evtimer_add(&ev, &tv);
tv.tv_usec = 0;
tv.tv_sec = 1;
event_loopexit(&tv);
gettimeofday(&tv_start, NULL);
event_dispatch();
gettimeofday(&tv_end, NULL);
timersub(&tv_end, &tv_start, &tv_end);
evtimer_del(&ev);
if (tv.tv_sec < 2)
test_ok = 1;
cleanup_test();
}
void
readcb(struct bufferevent *bev, void *arg)
{
if (EVBUFFER_LENGTH(bev->input) == 8333) {
bufferevent_disable(bev, EV_READ);
test_ok++;
}
}
void
writecb(struct bufferevent *bev, void *arg)
{
if (EVBUFFER_LENGTH(bev->output) == 0)
test_ok++;
}
void
errorcb(struct bufferevent *bev, short what, void *arg)
{
test_ok = -2;
}
void
test9(void)
{
struct bufferevent *bev1, *bev2;
char buffer[8333];
int i;
setup_test("Bufferevent: ");
bev1 = bufferevent_new(pair[0], readcb, writecb, errorcb, NULL);
bev2 = bufferevent_new(pair[1], readcb, writecb, errorcb, NULL);
bufferevent_disable(bev1, EV_READ);
bufferevent_enable(bev2, EV_READ);
for (i = 0; i < sizeof(buffer); i++)
buffer[0] = i;
bufferevent_write(bev1, buffer, sizeof(buffer));
event_dispatch();
bufferevent_free(bev1);
bufferevent_free(bev2);
if (test_ok != 2)
test_ok = 0;
cleanup_test();
}
struct test_pri_event {
struct event ev;
int count;
};
void
test_priorities_cb(int fd, short what, void *arg)
{
struct test_pri_event *pri = arg;
struct timeval tv;
if (pri->count == 3) {
event_loopexit(NULL);
return;
}
pri->count++;
timerclear(&tv);
event_add(&pri->ev, &tv);
}
void
test_priorities(int npriorities)
{
char buf[32];
struct test_pri_event one, two;
struct timeval tv;
snprintf(buf, sizeof(buf), "Priorities %d: ", npriorities);
setup_test(buf);
event_base_priority_init(event_base, npriorities);
memset(&one, 0, sizeof(one));
memset(&two, 0, sizeof(two));
timeout_set(&one.ev, test_priorities_cb, &one);
if (event_priority_set(&one.ev, 0) == -1) {
fprintf(stderr, "%s: failed to set priority", __func__);
exit(1);
}
timeout_set(&two.ev, test_priorities_cb, &two);
if (event_priority_set(&two.ev, npriorities - 1) == -1) {
fprintf(stderr, "%s: failed to set priority", __func__);
exit(1);
}
timerclear(&tv);
if (event_add(&one.ev, &tv) == -1)
exit(1);
if (event_add(&two.ev, &tv) == -1)
exit(1);
event_dispatch();
event_del(&one.ev);
event_del(&two.ev);
if (npriorities == 1) {
if (one.count == 3 && two.count == 3)
test_ok = 1;
} else if (npriorities == 2) {
/* Two is called once because event_loopexit is priority 1 */
if (one.count == 3 && two.count == 1)
test_ok = 1;
} else {
if (one.count == 3 && two.count == 0)
test_ok = 1;
}
cleanup_test();
}
static void
test_multiple_cb(int fd, short event, void *arg)
{
if (event & EV_READ)
test_ok |= 1;
else if (event & EV_WRITE)
test_ok |= 2;
}
void
test_multiple_events_for_same_fd(void)
{
struct event e1, e2;
setup_test("Multiple events for same fd: ");
event_set(&e1, pair[0], EV_READ, test_multiple_cb, NULL);
event_add(&e1, NULL);
event_set(&e2, pair[0], EV_WRITE, test_multiple_cb, NULL);
event_add(&e2, NULL);
event_loop(EVLOOP_ONCE);
event_del(&e2);
write(pair[1], TEST1, strlen(TEST1)+1);
event_loop(EVLOOP_ONCE);
event_del(&e1);
if (test_ok != 3)
test_ok = 0;
cleanup_test();
}
int
main (int argc, char **argv)
{
setvbuf(stdout, NULL, _IONBF, 0);
/* Initalize the event library */
event_base = event_init();
test1();
test2();
test3();
test4();
test5();
test6();
test7();
test8();
test9();
test_priorities(1);
test_priorities(2);
test_priorities(3);
test_multiple_events_for_same_fd();
return (0);
}