[Qemu-devel] [PATCH 3/7] monitor: Add chardev-add backend argument completion.

[Hani Benhabiles <kroosec@gmail.com>]

Signed-off-by: Hani Benhabiles <hani@linux.com>
---
 hmp-commands.hx |  1 +
 hmp.h           |  1 +
 monitor.c       | 23 +++++++++++++++++++++++
 3 files changed, 25 insertions(+)

diff --git a/hmp-commands.hx b/hmp-commands.hx
index 4f0f053..a411d4f 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -1614,6 +1614,7 @@ ETEXI
         .params     = "args",
         .help       = "add chardev",
         .mhandler.cmd = hmp_chardev_add,
+        .command_completion = chardev_add_completion,
     },
 
 STEXI
diff --git a/hmp.h b/hmp.h
index 162ccfa..dc03984 100644
--- a/hmp.h
+++ b/hmp.h
@@ -96,6 +96,7 @@ void device_add_completion(Monitor *mon, int nb_args, const char *str);
 void device_del_completion(Monitor *mon, int nb_args, const char *str);
 void object_add_completion(Monitor *mon, int nb_args, const char *str);
 void object_del_completion(Monitor *mon, int nb_args, const char *str);
+void chardev_add_completion(Monitor *mon, int nb_args, const char *str);
 void chardev_remove_completion(Monitor *mon, int nb_args, const char *str);
 
 
diff --git a/monitor.c b/monitor.c
index b79c0bd..73442c6 100644
--- a/monitor.c
+++ b/monitor.c
@@ -4278,6 +4278,29 @@ static const char *next_arg_type(const char *typestr)
     return (p != NULL ? ++p : typestr);
 }
 
+void chardev_add_completion(Monitor *mon, int nb_args, const char *str)
+{
+    size_t len;
+    ChardevBackendInfoList *list, *start;
+
+    if (nb_args != 2) {
+        return;
+    }
+    len = strlen(str);
+    readline_set_completion_index(mon->rs, len);
+
+    start = list = qmp_query_chardev_backends(NULL);
+    while (list) {
+        const char *chr_name = list->value->name;
+
+        if (!strncmp(chr_name, str, len)) {
+            readline_add_completion(mon->rs, chr_name);
+        }
+        list = list->next;
+    }
+    qapi_free_ChardevBackendInfoList(start);
+}
+
 void device_add_completion(Monitor *mon, int nb_args, const char *str)
 {
     GSList *list, *elt;
-- 
1.8.3.2