libei/tools/ei-socket-client.c

/*
 * Copyright © 2020 Red Hat, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#include "config.h"

#include <assert.h>
#include <errno.h>
#include <poll.h>
#include <stdio.h>
#include <signal.h>
#include <string.h>

#include "libei.h"

#include "src/util-mem.h"
#include "src/util-strings.h"

int main(int argc, char **argv)
{
	const char SOCKETNAME[] = "eis.socket";
	struct ei *ei = ei_socket_new_context(NULL);
	assert(ei);

	ei_configure_name(ei, "ei-socket-client-demo");

	/* This should be handled by libei */
	signal(SIGPIPE, SIG_IGN);

	int rc = ei_socket_init(ei, getenv("LIBEI_SOCKET") ? NULL : SOCKETNAME);

	if (rc != 0) {
		fprintf(stderr, "init failed: %s\n", strerror(errno));
		return 1;
	}

	printf("client: connected to %s\n", SOCKETNAME);

	struct pollfd fds = {
		.fd = ei_get_fd(ei),
		.events = POLLIN,
		.revents = 0,
	};

	struct ei_device *ptr = ei_device_new(ei);
	ei_device_configure_capability(ptr, EI_DEVICE_CAP_POINTER);

	bool stop = false;
	bool have_device = false;
	while (!stop && poll(&fds, 1, 2000) > -1) {
		ei_dispatch(ei);

		while (true) {
			struct ei_event *e = ei_get_event(ei);
			if (!e)
				break;

			switch(ei_event_get_type(e)) {
			case EI_EVENT_CONNECT:
				printf("client: connected\n");
				ei_device_add(ptr);
				break;
			case EI_EVENT_DISCONNECT:
				{
				printf("client: disconnected us\n");
				stop = true;
				break;
				}
			case EI_EVENT_DEVICE_ADDED:
				{
				printf("client: our device was accepted\n");
				have_device = true;
				break;
				}
			case EI_EVENT_DEVICE_REMOVED:
				{
				printf("client: our device was removed\n");
				have_device = false;
				break;
				}
			default:
				abort();
			}
			ei_event_unref(e);
		}

		if (have_device) {
			ei_device_pointer_motion(ptr, -1, 1);
		}
	}

	ei_unref(ei);

	return 0;
}