mirror of
https://gitlab.freedesktop.org/libinput/libei.git
synced 2025-12-28 09:40:07 +01:00
f7a24b2fbd
This is the minimum framework to support new clients, added devices and pointer relative motion events. It's missing a bunch of checks and verification, most of the server hooks aren't there yet, the only implementation is a UNIX socket and the protocol is plain text (but at least the last two makes it netcat-compatible). Protocol is plain text for now and interaction is like this (S is server, C is client): S: hello C: connect myclientname S: connected C: add 2 4 S: accept 2 C: rel 2 -1 1 C: rel 2 5 4 Where the last two lines are: add device with id 2 and capability mask 0x4, send a relative pointer motion event for device 2 with coordinates -1/1, then 5/4. The implementation relies heavily on some abstraction and macros galore, see the various util-* files. These are largely copied from libinput, with a few parts removed and a few other parts added. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
115 lines
3.5 KiB
C
115 lines
3.5 KiB
C
/*
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* Copyright © 2020 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "config.h"
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#include <assert.h>
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#include <errno.h>
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#include <poll.h>
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#include <stdio.h>
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#include <signal.h>
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#include <string.h>
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#include "libeis.h"
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#include "src/util-mem.h"
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#include "src/util-strings.h"
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int main(int argc, char **argv)
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{
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const char SOCKETNAME[] = "eis.socket";
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struct eis *eis = eis_socket_new_context(NULL);
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assert(eis);
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const char *xdgdir = getenv("XDG_RUNTIME_DIR");
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assert(xdgdir != NULL);
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_cleanup_free_ char *socketpath = xaprintf("%s/%s", xdgdir, SOCKETNAME);
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unlink(socketpath);
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/* This should be handled by libeis */
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signal(SIGPIPE, SIG_IGN);
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int rc = eis_socket_init(eis, SOCKETNAME);
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if (rc != 0) {
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fprintf(stderr, "init failed: %s\n", strerror(errno));
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return 1;
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}
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struct pollfd fds = {
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.fd = eis_get_fd(eis),
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.events = POLLIN,
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.revents = 0,
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};
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while (poll(&fds, 1, -1) > -1) {
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eis_dispatch(eis);
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struct eis_event *e = eis_get_event(eis);
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if (!e)
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continue;
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switch(eis_event_get_type(e)) {
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case EIS_EVENT_CLIENT_CONNECT:
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{
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struct eis_client *client = eis_event_get_client(e);
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printf("server: new client: %s\n", eis_client_get_name(client));
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/* insert sophisticated authentication here */
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eis_client_connect(client);
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printf("server: accepting client\n");
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break;
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}
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case EIS_EVENT_CLIENT_DISCONNECT:
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{
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struct eis_client *client = eis_event_get_client(e);
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printf("server: client %s disconnected\n", eis_client_get_name(client));
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eis_client_disconnect(client);
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break;
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}
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case EIS_EVENT_DEVICE_ADDED:
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{
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struct eis_device *device = eis_event_get_device(e);
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printf("server: new device, caps:%s%s%s%s\n",
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eis_device_has_capability(device, EIS_DEVICE_CAP_POINTER) ? " ptr" : "",
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eis_device_has_capability(device, EIS_DEVICE_CAP_KEYBOARD) ? " kbd" : "",
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eis_device_has_capability(device, EIS_DEVICE_CAP_POINTER_ABSOLUTE) ? " abs" : "",
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eis_device_has_capability(device, EIS_DEVICE_CAP_TOUCH) ? " touch" : "");
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/* insert sophisticated device checks here */
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eis_device_connect(device);
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break;
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}
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case EIS_EVENT_POINTER_MOTION:
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{
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struct eis_event_pointer *p = eis_event_get_pointer_event(e);
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printf("server: motion by %d/%d\n",
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eis_event_pointer_get_x(p),
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eis_event_pointer_get_y(p));
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}
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break;
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default:
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abort();
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}
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eis_event_unref(e);
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}
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return 0;
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}
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