kbd/kbd-1.15.2-chvt-userwait.patch
Stanislav Brabec 288e7c4ac7 Accepting request 205647 from home:DarkSS
- Update to version 2.0.1:
  * Disable arch-specific tests.
  * Fix regression in processing alt_is_meta keyword.
  * Rename Bepo keymaps:
    dvorak-fr-bepo.map -> fr-bepo-latin9.map
    dvorak-fr-bepo-utf8.map -> fr-bepo.map.
- Deleted kbd-1.15.2-dumpkeys-ppc.patch as obsolete:
  http://lists.opensuse.org/opensuse-factory/2013-08/msg00347.html
  k0da also thinks so ;) 
- gcc 4.6+ became required to prevent compilling error:
  "expected declaration specifiers or '...' before 'va_list'".

- Update to version 2.0.0:
  * Add bepo keyboard layout;
  * Add libkeymap;
  * The loadkeys and dumpkeys always use the libkeymap.
- Updated patches because of docs moved:
  * kbd-1.15.2-chvt-userwait.patch
  * kbd-1.15.2-docu-X11R6-xorg.patch
- Disabled patche because of dumpkeys rewritten:
  * kbd-1.15.2-dumpkeys-C-opt.patch
    May be someone could update it.

OBS-URL: https://build.opensuse.org/request/show/205647
OBS-URL: https://build.opensuse.org/package/show/Base:System/kbd?expand=0&rev=50
2014-03-11 18:50:02 +00:00

142 lines
3.1 KiB
Diff

chvt: add --userwait option
From: Daniel Drake <d.drake@mmm.com>
At http://bugs.gentoo.org/159729 we see chvt hanging in some scenario's. As
the solution to this is not immediately obvious, add a --userwait option
which repeatedly tries changing the terminal until the change has taken place.
Index: kbd-1.14.1/man/man1/chvt.1
===================================================================
--- kbd-1.14.1.orig/docs/man/man1/chvt.1
+++ kbd-1.14.1/docs/man/man1/chvt.1
@@ -4,6 +4,9 @@
chvt \- change foreground virtual terminal
.SH SYNOPSIS
.B chvt
+[
+.B --userwait
+]
.I N
.SH DESCRIPTION
The command
@@ -21,3 +24,10 @@ The key combination
(with
.I N
in the range 1-12) usually has a similar effect.
+.LP
+The
+.B --userwait
+option causes the system to loop in userspace waiting for the new terminal
+to become active, as opposed to the kernel-side
+.I VT_WAITACTIVE
+ioctl.
Index: kbd-1.14.1/src/chvt.c
===================================================================
--- kbd-1.14.1.orig/src/chvt.c
+++ kbd-1.14.1/src/chvt.c
@@ -7,13 +7,43 @@
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
+#include <getopt.h>
+#include <unistd.h>
#include "getfd.h"
#include "nls.h"
#include "version.h"
+#define USER_WAIT_SLEEP_US 100000
+#define USER_WAIT_MAX_ITERATIONS 50
+
+static int fd;
+
+static void chvt(int num)
+{
+ if (ioctl(fd,VT_ACTIVATE,num)) {
+ perror("VT_ACTIVATE");
+ exit(1);
+ }
+}
+
+static int fgconsole(void)
+{
+ struct vt_stat vtstat;
+ if (ioctl(fd, VT_GETSTATE, &vtstat)) {
+ perror("VT_GETSTATE");
+ exit(1);
+ }
+ return vtstat.v_active;
+}
+
int
main(int argc, char *argv[]) {
- int fd, num;
+ int c, num;
+ int user_wait = 0;
+ const struct option long_opts[] = {
+ { "version", no_argument, NULL, 'V' },
+ { "userwait", no_argument, NULL, 'u' },
+ };
set_progname(argv[0]);
@@ -21,22 +51,46 @@ main(int argc, char *argv[]) {
bindtextdomain(PACKAGE_NAME, LOCALEDIR);
textdomain(PACKAGE_NAME);
- if (argc == 2 && !strcmp(argv[1], "-V"))
- print_version_and_exit();
+ while ((c = getopt_long(argc, argv, "Vu", long_opts, NULL)) != -1) {
+ switch (c) {
+ case 'V':
+ print_version_and_exit();
+ case 'u':
+ user_wait = 1;
+ break;
+ }
+ }
- if (argc != 2) {
- fprintf(stderr, _("usage: chvt N\n"));
+ if (optind >= argc) {
+ fprintf(stderr, _("usage: chvt [--userwait] N\n"));
exit(1);
}
+
fd = getfd(NULL);
- num = atoi(argv[1]);
- if (ioctl(fd,VT_ACTIVATE,num)) {
- perror("chvt: VT_ACTIVATE");
- exit(1);
- }
- if (ioctl(fd,VT_WAITACTIVE,num)) {
- perror("VT_WAITACTIVE");
- exit(1);
+ num = atoi(argv[optind++]);
+ chvt(num);
+
+ if (user_wait) {
+ int active = 0;
+ int i;
+ for (i = 0; i < USER_WAIT_MAX_ITERATIONS; i++) {
+ if (fgconsole() == num) {
+ active = 1;
+ break;
+ }
+
+ chvt(num);
+ usleep(USER_WAIT_SLEEP_US);
+ }
+ if (!active) {
+ fprintf(stderr, _("VT change timed out\n"));
+ exit(1);
+ }
+ } else {
+ if (ioctl(fd,VT_WAITACTIVE,num)) {
+ perror("VT_WAITACTIVE");
+ exit(1);
+ }
}
exit(0);
}