2 * Copyright © 2014 Ran Benita <ran234@gmail.com>
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
29 #include <sys/types.h>
31 #include <linux/input.h>
34 #include "xkbcommon/xkbcommon-x11.h"
39 struct xkb_context *ctx = test_get_context(0);
40 struct xkb_keymap *keymap;
41 xcb_connection_t *conn;
45 char displayfd[128], display[128];
46 char *search_path, *search_path_arg, *xkb_path;
47 char *original, *dump;
48 char *envp[] = { NULL };
49 char *xvfb_argv[] = { "Xvfb", "-displayfd", displayfd, NULL };
51 char *xkbcomp_argv[] = { "xkbcomp", "-I", NULL /* search_path_arg */,
52 NULL /* xkb_path */, display, NULL };
56 * What all of this mess does is:
57 * 1. Launch Xvfb on the next available DISPLAY. Xvfb reports the
58 * display number to an fd passed with -displayfd once it's
59 * initialized. We pass a pipe there to read it.
60 * 2. Make an xcb connection to this display.
61 * 3. Launch xkbcomp to change the keymap of the new display (doing
62 * this programmatically is major work [which we may yet do some
63 * day for xkbcommon-x11] so we use xkbcomp for now).
64 * 4. Download the keymap back from the display using xkbcommon-x11.
65 * 5. Compare received keymap to the uploaded keymap.
66 * 6. Kill the server & clean up.
72 ret = snprintf(displayfd, sizeof(displayfd), "%d", pipefds[1]);
73 assert(ret >= 0 && ret < sizeof(displayfd));
75 ret = posix_spawnp(&xvfb_pid, "Xvfb", NULL, NULL, xvfb_argv, envp);
82 ret = read(pipefds[0], display + 1, sizeof(display) - 1);
83 assert(ret > 0 && 1 + ret < sizeof(display) - 1);
84 if (display[ret] == '\n')
86 display[1 + ret] = '\0';
90 conn = xcb_connect(display, NULL);
91 if (xcb_connection_has_error(conn)) {
95 ret = xkb_x11_setup_xkb_extension(conn,
96 XKB_X11_MIN_MAJOR_XKB_VERSION,
97 XKB_X11_MIN_MINOR_XKB_VERSION,
98 XKB_X11_SETUP_XKB_EXTENSION_NO_FLAGS,
99 NULL, NULL, NULL, NULL);
104 device_id = xkb_x11_get_core_keyboard_device_id(conn);
105 assert(device_id != -1);
107 xkb_path = test_get_path("keymaps/host.xkb");
108 search_path = test_get_path("");
110 ret = asprintf(&search_path_arg, "-I%s", search_path);
112 xkbcomp_argv[2] = search_path_arg;
113 xkbcomp_argv[3] = xkb_path;
114 ret = posix_spawnp(&xkbcomp_pid, "xkbcomp", NULL, NULL, xkbcomp_argv, envp);
115 free(search_path_arg);
122 ret = waitpid(xkbcomp_pid, &status, 0);
123 if (ret < 0 || !WIFEXITED(status) || WEXITSTATUS(status) != 0) {
128 keymap = xkb_x11_keymap_new_from_device(ctx, conn, device_id,
129 XKB_KEYMAP_COMPILE_NO_FLAGS);
132 original = test_read_file("keymaps/host.xkb");
135 dump = xkb_keymap_get_as_string(keymap, XKB_KEYMAP_USE_ORIGINAL_FORMAT);
138 ret = streq(original, dump);
141 "round-trip test failed: dumped map differs from original\n");
142 fprintf(stderr, "length: dumped %lu, original %lu\n",
143 (unsigned long) strlen(dump),
144 (unsigned long) strlen(original));
145 fprintf(stderr, "dumped map:\n");
146 fprintf(stderr, "%s\n", dump);
155 xkb_keymap_unref(keymap);
157 xcb_disconnect(conn);
159 kill(xvfb_pid, SIGTERM);
161 xkb_context_unref(ctx);