diff options
| author | Gal Hammer <ghammer@redhat.com> | 2015-01-07 10:38:35 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-01-09 23:41:11 +0100 |
| commit | e76d442043ff50716457d5558c237b6e60345f53 (patch) | |
| tree | a1e1f2346408941b0c2e76c168cac2f990b667c0 /qemu-char.c | |
| parent | f1c5831ca3e3eafb89331233221768b64db113e8 (diff) | |
char: restore stdio echo on resume from suspend.
The monitor's auto-completion feature stopped working when stdio is used
as an input and qemu was resumed after it was suspended (using ctrl-z).
Signed-off-by: Gal Hammer <ghammer@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'qemu-char.c')
| -rw-r--r-- | qemu-char.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/qemu-char.c b/qemu-char.c index ef84b53681..5430b87048 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -1112,6 +1112,9 @@ static struct termios oldtty; static int old_fd0_flags; static bool stdio_in_use; static bool stdio_allow_signal; +static bool stdio_echo_state; + +static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo); static void term_exit(void) { @@ -1119,10 +1122,17 @@ static void term_exit(void) fcntl(0, F_SETFL, old_fd0_flags); } +static void term_stdio_handler(int sig) +{ + /* restore echo after resume from suspend. */ + qemu_chr_set_echo_stdio(NULL, stdio_echo_state); +} + static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo) { struct termios tty; + stdio_echo_state = echo; tty = oldtty; if (!echo) { tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP @@ -1149,6 +1159,7 @@ static void qemu_chr_close_stdio(struct CharDriverState *chr) static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts) { CharDriverState *chr; + struct sigaction act; if (is_daemonized()) { error_report("cannot use stdio with -daemonize"); @@ -1166,6 +1177,10 @@ static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts) qemu_set_nonblock(0); atexit(term_exit); + memset(&act, 0, sizeof(act)); + act.sa_handler = term_stdio_handler; + sigaction(SIGCONT, &act, NULL); + chr = qemu_chr_open_fd(0, 1); chr->chr_close = qemu_chr_close_stdio; chr->chr_set_echo = qemu_chr_set_echo_stdio; |