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axfer: apply refactoring in list subcommand for new command system

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This commit splits option parser for new command system into a function
for readability.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2018-12-04 06:33:42 +09:00 committed by Takashi Iwai
parent ac3e1d904b
commit 81a275acf9
1 changed files with 24 additions and 17 deletions
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41
axfer/subcmd-list.c
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@ -225,30 +225,37 @@ static bool decide_operation(int argc, char *const *argv, enum list_op *op)
return false; return false;
} }
int subcmd_list(int argc, char *const *argv, snd_pcm_stream_t direction) static int detect_operation(int argc, char *const *argv, enum list_op *op)
{ {
static const struct { static const char *const ops[] = {
const char *const category; [LIST_OP_DEVICE] = "device",
int (*func)(snd_pcm_stream_t direction); [LIST_OP_PCM] = "pcm",
} ops[] = {
{"device", list_devices},
{"pcm", list_pcms},
}; };
enum list_op op;
int i; int i;
int err;
// Renewed command system. if (strcmp(argv[1], "list") || argc < 3)
if (argc > 2 && !strcmp(argv[1], "list")) { return false;
for (i = 0; i < ARRAY_SIZE(ops); ++i) {
if (!strcmp(ops[i].category, argv[2])) for (i = 0; i < ARRAY_SIZE(ops); ++i) {
return ops[i].func(direction); if (!strcmp(argv[2], ops[i])) {
*op = i;
return true;
} }
} }
if (!decide_operation(argc, argv, &op)) { return false;
err = -EINVAL; }
op = LIST_OP_HELP;
int subcmd_list(int argc, char *const *argv, snd_pcm_stream_t direction)
{
enum list_op op = LIST_OP_HELP;
int err = 0;
// Renewed command system.
if (argc > 1) {
if (!detect_operation(argc, argv, &op) &&
!decide_operation(argc, argv, &op))
err = -EINVAL;
} }
if (op == LIST_OP_DEVICE) if (op == LIST_OP_DEVICE)