wayland/tests/queue-test.c
Kristian Høgsberg adcb2d73b3 queue-test: WEXITSTATUS() is undefined if WIFEXITED() is false
If a child process dies from a signal, WIFEXITED() returns false and
WEXITSTATUS() isn't well-defined.  In this case, if the client segfaults,
the status is 134 and WEXITSTATUS(134) is EXIT_SUCCESS, so we mask the error.
2013-02-08 11:38:59 -05:00

288 lines
6.9 KiB
C

/*
* Copyright © 2012 Jonas Ådahl
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <assert.h>
#include "wayland-client.h"
#include "wayland-server.h"
#include "test-runner.h"
#define SOCKET_NAME "wayland-queue-test"
#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
#define client_assert(expr) \
do { \
if (!(expr)) { \
fprintf(stderr, "%s:%d: " \
"Assertion `%s' failed.\n", \
__FILE__, __LINE__, #expr); \
exit(EXIT_FAILURE); \
} \
} while (0)
struct display {
struct wl_display *display;
int child_exit_status;
};
static void
registry_handle_global(void *data, struct wl_registry *registry,
uint32_t id, const char *interface, uint32_t version)
{
int *pcounter = data;
(*pcounter)++;
client_assert(*pcounter == 1);
wl_registry_destroy(registry);
}
static const struct wl_registry_listener registry_listener = {
registry_handle_global,
NULL
};
/* Test that destroying a proxy object doesn't result in any more
* callback being invoked, even though were many queued. */
static int
client_test_proxy_destroy(void)
{
struct wl_display *display;
struct wl_registry *registry;
int counter = 0;
display = wl_display_connect(SOCKET_NAME);
client_assert(display);
registry = wl_display_get_registry(display);
wl_registry_add_listener(registry, &registry_listener,
&counter);
wl_display_roundtrip(display);
client_assert(counter == 1);
wl_display_disconnect(display);
return 0;
}
struct multiple_queues_state {
struct wl_display *display;
struct wl_callback* callback2;
bool done;
};
static void
sync_callback(void *data, struct wl_callback *callback, uint32_t serial)
{
struct multiple_queues_state *state = data;
state->done = true;
wl_callback_destroy(callback);
wl_display_dispatch_pending(state->display);
wl_callback_destroy(state->callback2);
}
static const struct wl_callback_listener sync_listener = {
sync_callback
};
/* Test that when receiving the first of two synchronization
* callback events, destroying the second one doesn't cause any
* errors even if the delete_id event is handled out of order. */
static int
client_test_multiple_queues(void)
{
struct wl_event_queue *queue;
struct wl_callback *callback1;
struct multiple_queues_state state;
int ret = 0;
state.display = wl_display_connect(SOCKET_NAME);
client_assert(state.display);
/* Make the current thread the display thread. This is because
* wl_display_dispatch_queue() will only read the display fd if
* the main display thread has been set. */
wl_display_dispatch_pending(state.display);
queue = wl_display_create_queue(state.display);
client_assert(queue);
state.done = false;
callback1 = wl_display_sync(state.display);
wl_callback_add_listener(callback1, &sync_listener, &state);
wl_proxy_set_queue((struct wl_proxy *) callback1, queue);
state.callback2 = wl_display_sync(state.display);
wl_callback_add_listener(state.callback2, &sync_listener, NULL);
wl_proxy_set_queue((struct wl_proxy *) state.callback2, queue);
wl_display_flush(state.display);
while (!state.done && !ret)
ret = wl_display_dispatch_queue(state.display, queue);
wl_display_disconnect(state.display);
return ret == -1 ? -1 : 0;
}
static void
client_alarm_handler(int sig)
{
fprintf(stderr, "Received SIGALRM signal, aborting.\n");
exit(EXIT_FAILURE);
}
static void
client_sigsegv_handler(int sig)
{
fprintf(stderr, "Received SIGSEGV signal, aborting.\n");
exit(EXIT_FAILURE);
}
static int
client_main(int fd)
{
bool cont = false;
signal(SIGSEGV, client_sigsegv_handler);
signal(SIGALRM, client_alarm_handler);
alarm(2);
if (read(fd, &cont, sizeof cont) != 1) {
close(fd);
return EXIT_FAILURE;
}
close(fd);
if (!cont)
return EXIT_FAILURE;
if (client_test_proxy_destroy() != 0) {
fprintf(stderr, "proxy destroy test failed\n");
return EXIT_FAILURE;
}
if (client_test_multiple_queues() != 0) {
fprintf(stderr, "multiple proxy test failed\n");
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
static void
dummy_bind(struct wl_client *client,
void *data, uint32_t version, uint32_t id)
{
}
static int
sigchld_handler(int signal_number, void *data)
{
struct display *display = data;
int status;
waitpid(-1, &status, 0);
display->child_exit_status = status;
wl_display_terminate(display->display);
return 0;
}
static void
signal_client(int fd, bool cont)
{
int ret;
ret = write(fd, &cont, sizeof cont);
close(fd);
assert(ret == sizeof cont);
}
TEST(queue)
{
struct display display;
struct wl_event_loop *loop;
struct wl_event_source *signal_source;
const struct wl_interface *dummy_interfaces[] = {
&wl_seat_interface,
&wl_pointer_interface,
&wl_keyboard_interface,
&wl_surface_interface
};
unsigned int i;
pid_t pid;
int fds[2];
int ret;
ret = pipe(fds);
assert(ret == 0);
pid = fork();
if (pid == -1) {
perror("fork");
exit(EXIT_FAILURE);
} else if (pid == 0) {
close(fds[1]);
exit(client_main(fds[0]));
}
close(fds[0]);
display.child_exit_status = EXIT_FAILURE;
display.display = wl_display_create();
if (!display.display) {
signal_client(fds[1], false);
abort();
}
for (i = 0; i < ARRAY_LENGTH(dummy_interfaces); i++)
wl_display_add_global(display.display, dummy_interfaces[i],
NULL, dummy_bind);
ret = wl_display_add_socket(display.display, SOCKET_NAME);
assert(ret == 0);
loop = wl_display_get_event_loop(display.display);
signal_source = wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler,
&display);
signal_client(fds[1], true);
wl_display_run(display.display);
wl_event_source_remove(signal_source);
wl_display_destroy(display.display);
assert(WIFEXITED(display.child_exit_status) &&
WEXITSTATUS(display.child_exit_status) == EXIT_SUCCESS);
}