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Simplify mpd_process_info() 

At a cost but still a win as I see it.
This commit is contained in:
Přemysl Eric Janouch 2016-10-13 00:49:35 +02:00
parent fd1d918832
commit 5bf0410587
Signed by: p
GPG Key ID: B715679E3A361BE6
1 changed files with 27 additions and 35 deletions
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62
nncmpp.c
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@ -2731,57 +2731,49 @@ mpd_update_playback_state (void)
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
static void
mpd_init_response_map (struct str_map *map)
{
str_map_init (map);
map->key_xfrm = tolower_ascii_strxfrm;
map->free = free;
}
static void
mpd_process_info_chunk (struct str_map *map, char *file)
{
unsigned long n;
if (!file)
{
if (xstrtoul_map (map, "playlistlength", &n))
item_list_resize (&g_ctx.playlist, n);
g_ctx.playback_info = *map;
}
else
{
if (xstrtoul_map (map, "pos", &n))
item_list_set (&g_ctx.playlist, n, map);
str_map_free (map);
}
mpd_init_response_map (map);
}
static void
mpd_process_info (const struct str_vector *data)
{
struct str_map map;
mpd_init_response_map (&map);
str_map_init (&map);
map.key_xfrm = tolower_ascii_strxfrm;
map.free = free;
// First there's the status, followed by playlist items chunked by "file"
char *key, *value, *file = NULL;
// First there's the status, followed by playlist items chunked by "file".
// Unfortunately we need a field from the front before we process the rest
// but otherwise it's much better to process the list from the back.
//
// TODO: one thing that could help is command_list_ok_begin,
// which can add NULL strings to the vector in place of list_OK
unsigned long n;
for (size_t i = 0; i < data->len; i++)
{
static const char needle[] = "playlistlength: ";
if (!strncasecmp_ascii (data->vector[i], needle, sizeof needle - 1)
&& xstrtoul (&n, data->vector[i] + sizeof needle - 1, 10))
{
item_list_resize (&g_ctx.playlist, n);
break;
}
}
char *key, *value;
for (size_t i = data->len; i--; )
{
if (!(key = mpd_client_parse_kv (data->vector[i], &value)))
{
print_debug ("%s: %s", "erroneous MPD output", data->vector[i]);
continue;
}
str_map_set (&map, key, xstrdup (value));
if (!strcasecmp_ascii (key, "file"))
{
mpd_process_info_chunk (&map, file);
file = value;
if (xstrtoul_map (&map, "pos", &n))
item_list_set (&g_ctx.playlist, n, &map);
str_map_clear (&map);
}
str_map_set (&map, key, xstrdup (value));
}
mpd_process_info_chunk (&map, file);
str_map_free (&map);
g_ctx.playback_info = map;
}
static void