adcb2d73b3
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.
288 lines
6.9 KiB
C
288 lines
6.9 KiB
C
/*
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* Copyright © 2012 Jonas Ådahl
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <assert.h>
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#include "wayland-client.h"
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#include "wayland-server.h"
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#include "test-runner.h"
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#define SOCKET_NAME "wayland-queue-test"
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#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
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#define client_assert(expr) \
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do { \
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if (!(expr)) { \
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fprintf(stderr, "%s:%d: " \
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"Assertion `%s' failed.\n", \
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__FILE__, __LINE__, #expr); \
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exit(EXIT_FAILURE); \
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} \
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} while (0)
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struct display {
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struct wl_display *display;
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int child_exit_status;
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};
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static void
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registry_handle_global(void *data, struct wl_registry *registry,
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uint32_t id, const char *interface, uint32_t version)
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{
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int *pcounter = data;
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(*pcounter)++;
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client_assert(*pcounter == 1);
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wl_registry_destroy(registry);
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}
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static const struct wl_registry_listener registry_listener = {
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registry_handle_global,
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NULL
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};
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/* Test that destroying a proxy object doesn't result in any more
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* callback being invoked, even though were many queued. */
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static int
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client_test_proxy_destroy(void)
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{
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struct wl_display *display;
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struct wl_registry *registry;
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int counter = 0;
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display = wl_display_connect(SOCKET_NAME);
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client_assert(display);
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registry = wl_display_get_registry(display);
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wl_registry_add_listener(registry, ®istry_listener,
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&counter);
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wl_display_roundtrip(display);
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client_assert(counter == 1);
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wl_display_disconnect(display);
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return 0;
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}
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struct multiple_queues_state {
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struct wl_display *display;
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struct wl_callback* callback2;
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bool done;
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};
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static void
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sync_callback(void *data, struct wl_callback *callback, uint32_t serial)
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{
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struct multiple_queues_state *state = data;
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state->done = true;
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wl_callback_destroy(callback);
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wl_display_dispatch_pending(state->display);
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wl_callback_destroy(state->callback2);
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}
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static const struct wl_callback_listener sync_listener = {
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sync_callback
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};
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/* Test that when receiving the first of two synchronization
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* callback events, destroying the second one doesn't cause any
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* errors even if the delete_id event is handled out of order. */
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static int
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client_test_multiple_queues(void)
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{
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struct wl_event_queue *queue;
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struct wl_callback *callback1;
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struct multiple_queues_state state;
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int ret = 0;
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state.display = wl_display_connect(SOCKET_NAME);
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client_assert(state.display);
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/* Make the current thread the display thread. This is because
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* wl_display_dispatch_queue() will only read the display fd if
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* the main display thread has been set. */
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wl_display_dispatch_pending(state.display);
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queue = wl_display_create_queue(state.display);
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client_assert(queue);
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state.done = false;
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callback1 = wl_display_sync(state.display);
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wl_callback_add_listener(callback1, &sync_listener, &state);
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wl_proxy_set_queue((struct wl_proxy *) callback1, queue);
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state.callback2 = wl_display_sync(state.display);
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wl_callback_add_listener(state.callback2, &sync_listener, NULL);
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wl_proxy_set_queue((struct wl_proxy *) state.callback2, queue);
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wl_display_flush(state.display);
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while (!state.done && !ret)
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ret = wl_display_dispatch_queue(state.display, queue);
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wl_display_disconnect(state.display);
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return ret == -1 ? -1 : 0;
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}
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static void
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client_alarm_handler(int sig)
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{
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fprintf(stderr, "Received SIGALRM signal, aborting.\n");
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exit(EXIT_FAILURE);
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}
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static void
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client_sigsegv_handler(int sig)
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{
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fprintf(stderr, "Received SIGSEGV signal, aborting.\n");
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exit(EXIT_FAILURE);
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}
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static int
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client_main(int fd)
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{
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bool cont = false;
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signal(SIGSEGV, client_sigsegv_handler);
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signal(SIGALRM, client_alarm_handler);
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alarm(2);
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if (read(fd, &cont, sizeof cont) != 1) {
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close(fd);
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return EXIT_FAILURE;
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}
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close(fd);
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if (!cont)
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return EXIT_FAILURE;
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if (client_test_proxy_destroy() != 0) {
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fprintf(stderr, "proxy destroy test failed\n");
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return EXIT_FAILURE;
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}
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if (client_test_multiple_queues() != 0) {
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fprintf(stderr, "multiple proxy test failed\n");
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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static void
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dummy_bind(struct wl_client *client,
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void *data, uint32_t version, uint32_t id)
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{
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}
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static int
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sigchld_handler(int signal_number, void *data)
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{
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struct display *display = data;
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int status;
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waitpid(-1, &status, 0);
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display->child_exit_status = status;
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wl_display_terminate(display->display);
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return 0;
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}
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static void
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signal_client(int fd, bool cont)
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{
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int ret;
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ret = write(fd, &cont, sizeof cont);
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close(fd);
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assert(ret == sizeof cont);
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}
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TEST(queue)
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{
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struct display display;
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struct wl_event_loop *loop;
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struct wl_event_source *signal_source;
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const struct wl_interface *dummy_interfaces[] = {
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&wl_seat_interface,
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&wl_pointer_interface,
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&wl_keyboard_interface,
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&wl_surface_interface
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};
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unsigned int i;
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pid_t pid;
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int fds[2];
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int ret;
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ret = pipe(fds);
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assert(ret == 0);
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pid = fork();
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if (pid == -1) {
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perror("fork");
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exit(EXIT_FAILURE);
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} else if (pid == 0) {
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close(fds[1]);
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exit(client_main(fds[0]));
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}
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close(fds[0]);
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display.child_exit_status = EXIT_FAILURE;
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display.display = wl_display_create();
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if (!display.display) {
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signal_client(fds[1], false);
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abort();
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}
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for (i = 0; i < ARRAY_LENGTH(dummy_interfaces); i++)
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wl_display_add_global(display.display, dummy_interfaces[i],
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NULL, dummy_bind);
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ret = wl_display_add_socket(display.display, SOCKET_NAME);
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assert(ret == 0);
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loop = wl_display_get_event_loop(display.display);
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signal_source = wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler,
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&display);
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signal_client(fds[1], true);
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wl_display_run(display.display);
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wl_event_source_remove(signal_source);
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wl_display_destroy(display.display);
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assert(WIFEXITED(display.child_exit_status) &&
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WEXITSTATUS(display.child_exit_status) == EXIT_SUCCESS);
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}
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