/* XXX this blocks entire thread. Rewrite to use
* qemu_chr_fe_write and background I/O callbacks */
qemu_chr_fe_write_all(&d->chr,
(uint8_t *)buf1, strlen(buf1));
d->linestart = 0;
}
ret += qemu_chr_fe_write(&d->chr, buf + i, 1);
if (buf[i] == '\n') {
d->linestart = 1;
}
}
}
return ret;
}
static const char * const mux_help[] = {
"% h print this help\n\r",
"% x exit emulator\n\r",
"% s save disk data back to file (if -snapshot)\n\r",
"% t toggle console timestamps\n\r",
"% b send break (magic sysrq)\n\r",
"% c switch between console and monitor\n\r",
"% % sends %\n\r",
NULL
};
int term_escape_char = 0x01; /* ctrl-a is used for escape */
static void mux_print_help(Chardev *chr)
{
int i, j;
char ebuf[15] = "Escape-Char";
char cbuf[50] = "\n\r";
if (term_escape_char > 0 && term_escape_char < 26) {
snprintf(cbuf, sizeof(cbuf), "\n\r");
snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
} else {
snprintf(cbuf, sizeof(cbuf),
"\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
term_escape_char);
}
/* XXX this blocks entire thread. Rewrite to use
* qemu_chr_fe_write and background I/O callbacks */
qemu_chr_write_all(chr, (uint8_t *)cbuf, strlen(cbuf));
for (i = 0; mux_help[i] != NULL; i++) {
for (j = 0; mux_help[i][j] != '\0'; j++) {
if (mux_help[i][j] == '%') {
qemu_chr_write_all(chr, (uint8_t *)ebuf, strlen(ebuf));
} else {
qemu_chr_write_all(chr, (uint8_t *)&mux_help[i][j], 1);
}
}
}
}
static void char_console_test_subprocess(void)
{
QemuOpts *opts;
Chardev *chr;
opts = qemu_opts_create(qemu_find_opts("chardev"), "console-label",
1, &error_abort);
qemu_opt_set(opts, "backend", "console", &error_abort);
chr = qemu_chr_new_from_opts(opts, NULL);
g_assert_nonnull(chr);
qemu_chr_write_all(chr, (const uint8_t *)"CONSOLE", 7);
qemu_opts_del(opts);
object_unparent(OBJECT(chr));
}
static int mux_proc_byte(Chardev *chr, MuxChardev *d, int ch)
{
if (d->term_got_escape) {
d->term_got_escape = 0;
if (ch == term_escape_char) {
goto send_char;
}
switch (ch) {
case '?':
case 'h':
mux_print_help(chr);
break;
case 'x':
{
const char *term = "QEMU: Terminated\n\r";
qemu_chr_write_all(chr, (uint8_t *)term, strlen(term));
exit(0);
break;
}
case 's':
blk_commit_all();
break;
case 'b':
qemu_chr_be_event(chr, CHR_EVENT_BREAK);
break;
case 'c':
assert(d->mux_cnt > 0); /* handler registered with first fe */
/* Switch to the next registered device */
mux_set_focus(chr, (d->focus + 1) % d->mux_cnt);
break;
case 't':
d->timestamps = !d->timestamps;
d->timestamps_start = -1;
d->linestart = 0;
break;
}
} else if (ch == term_escape_char) {
d->term_got_escape = 1;
} else {
send_char:
return 1;
}
return 0;
}
