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Diffstat (limited to 'test/x11comp.c')
| -rw-r--r-- | test/x11comp.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/test/x11comp.c b/test/x11comp.c new file mode 100644 index 0000000..5fd064b --- /dev/null +++ b/test/x11comp.c @@ -0,0 +1,170 @@ +/* + * Copyright © 2014 Ran Benita <ran234@gmail.com> + * + * 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 <stdio.h> +#include <spawn.h> +#include <unistd.h> +#include <assert.h> +#include <signal.h> +#include <sys/types.h> +#include <sys/wait.h> + +#include "test.h" +#include "xkbcommon/xkbcommon-x11.h" + +int +main(void) +{ + struct xkb_context *ctx = test_get_context(0); + struct xkb_keymap *keymap; + xcb_connection_t *conn; + int32_t device_id; + int ret, status; + char display[512]; + char *xkb_path; + char *original, *dump; + char *envp[] = { NULL }; + char *xvfb_argv[] = { + (char *) "Xvfb", display, NULL + }; + pid_t xvfb_pid = 0; + char *xkbcomp_argv[] = { + (char *) "xkbcomp", (char *) "-I", NULL /* xkb_path */, display, NULL + }; + pid_t xkbcomp_pid; + + char *xhost = NULL; + int xdpy_current; + int xdpy_candidate; + + /* + * What all of this mess does is: + * 1. Launch Xvfb on available DISPLAY. + * 2. Make an xcb connection to this display. + * 3. Launch xkbcomp to change the keymap of the new display (doing + * this programmatically is major work [which we may yet do some + * day for xkbcommon-x11] so we use xkbcomp for now). + * 4. Download the keymap back from the display using xkbcommon-x11. + * 5. Compare received keymap to the uploaded keymap. + * 6. Kill the server & clean up. + */ + + ret = xcb_parse_display(NULL, &xhost, &xdpy_current, NULL); + assert(ret != 0); + /* + * IANA assigns TCP port numbers from 6000 through 6063 to X11 + * clients. In addition, the current XCB implementaion shows + * that, when an X11 client tries to establish a TCP connetion, + * the port number needed is specified by adding 6000 to a given + * display number. So, one of reasonable ranges of xdpy_candidate + * is [0, 63]. + */ + for (xdpy_candidate = 63; xdpy_candidate >= 0; xdpy_candidate--) { + if (xdpy_candidate == xdpy_current) { + continue; + } + snprintf(display, sizeof(display), "%s:%d", xhost, xdpy_candidate); + ret = posix_spawnp(&xvfb_pid, "Xvfb", NULL, NULL, xvfb_argv, envp); + if (ret == 0) { + break; + } + } + free(xhost); + if (ret != 0) { + ret = SKIP_TEST; + goto err_ctx; + } + + /* Wait for Xvfb fully waking up to accept a connection from a client. */ + sleep(1); + + conn = xcb_connect(display, NULL); + if (xcb_connection_has_error(conn)) { + ret = SKIP_TEST; + goto err_xvfd; + } + ret = xkb_x11_setup_xkb_extension(conn, + XKB_X11_MIN_MAJOR_XKB_VERSION, + XKB_X11_MIN_MINOR_XKB_VERSION, + XKB_X11_SETUP_XKB_EXTENSION_NO_FLAGS, + NULL, NULL, NULL, NULL); + if (!ret) { + ret = SKIP_TEST; + goto err_xcb; + } + device_id = xkb_x11_get_core_keyboard_device_id(conn); + assert(device_id != -1); + + xkb_path = test_get_path("keymaps/host.xkb"); + assert(ret >= 0); + xkbcomp_argv[2] = xkb_path; + ret = posix_spawnp(&xkbcomp_pid, "xkbcomp", NULL, NULL, xkbcomp_argv, envp); + free(xkb_path); + if (ret != 0) { + ret = SKIP_TEST; + goto err_xcb; + } + ret = waitpid(xkbcomp_pid, &status, 0); + if (ret < 0 || !WIFEXITED(status) || WEXITSTATUS(status) != 0) { + ret = SKIP_TEST; + goto err_xcb; + } + + keymap = xkb_x11_keymap_new_from_device(ctx, conn, device_id, + XKB_KEYMAP_COMPILE_NO_FLAGS); + assert(keymap); + + original = test_read_file("keymaps/host.xkb"); + assert(original); + + dump = xkb_keymap_get_as_string(keymap, XKB_KEYMAP_USE_ORIGINAL_FORMAT); + assert(dump); + + if (!streq(original, dump)) { + fprintf(stderr, + "round-trip test failed: dumped map differs from original\n"); + fprintf(stderr, "length: dumped %lu, original %lu\n", + (unsigned long) strlen(dump), + (unsigned long) strlen(original)); + fprintf(stderr, "dumped map:\n"); + fprintf(stderr, "%s\n", dump); + ret = 1; + goto err_dump; + } + + ret = 0; +err_dump: + free(original); + free(dump); + xkb_keymap_unref(keymap); +err_xcb: + xcb_disconnect(conn); +err_xvfd: + if (xvfb_pid > 0) + kill(xvfb_pid, SIGTERM); +err_ctx: + xkb_context_unref(ctx); + return ret; +} |