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monitor: allow "help" show message for single command in sub group 

A new parameter type 'S' is introduced to allow user input any string.
"help info block" works normal now.

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Wenchao Xia 2013-08-27 20:38:26 +08:00 committed by Luiz Capitulino
parent d903a779cf
commit 129be006d6
2 changed files with 28 additions and 1 deletions
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2
hmp-commands.hx
View File

@ -11,7 +11,7 @@ ETEXI
{
.name = "help|?",
.args_type = "name:s?",
.args_type = "name:S?",
.params = "[cmd]",
.help = "show the help",
.mhandler.cmd = do_help_cmd,

27
monitor.c
View File

@ -83,6 +83,7 @@
* 'F' filename
* 'B' block device name
* 's' string (accept optional quote)
* 'S' it just appends the rest of the string (accept optional quote)
* 'O' option string of the form NAME=VALUE,...
* parsed according to QemuOptsList given by its name
* Example: 'device:O' uses qemu_device_opts.
@ -4047,6 +4048,31 @@ static const mon_cmd_t *monitor_parse_command(Monitor *mon,
}
}
break;
case 'S':
{
/* package all remaining string */
int len;
while (qemu_isspace(*p)) {
p++;
}
if (*typestr == '?') {
typestr++;
if (*p == '\0') {
/* no remaining string: NULL argument */
break;
}
}
len = strlen(p);
if (len <= 0) {
monitor_printf(mon, "%s: string expected\n",
cmdname);
break;
}
qdict_put(qdict, key, qstring_from_str(p));
p += len;
}
break;
default:
bad_type:
monitor_printf(mon, "%s: unknown type '%c'\n", cmdname, c);
@ -4294,6 +4320,7 @@ static void monitor_find_completion_by_table(Monitor *mon,
bdrv_iterate(block_completion_it, &mbs);
break;
case 's':
case 'S':
if (!strcmp(cmd->name, "sendkey")) {
char *sep = strrchr(str, '-');
if (sep)