mlow/mpd_control
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Revive connection upon error.

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Keep connection on input loop alive.
This commit is contained in:
Matt Low 2019-10-16 22:23:09 +04:00
parent d848dc0560
commit 0c401294b7
1 changed files with 34 additions and 23 deletions
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57
mpd_control.c
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@ -41,13 +41,21 @@ scroll_text(const char *text_to_scroll, const size_t text_len, char *buffer,
}
static int
handle_error(struct mpd_connection *c)
handle_error(struct mpd_connection *conn, bool revive)
{
assert(mpd_connection_get_error(c) != MPD_ERROR_SUCCESS);
if (mpd_connection_get_error(conn) != MPD_ERROR_SUCCESS) {
fprintf(stderr, "%s\n", mpd_connection_get_error_message(conn));
fprintf(stderr, "%s\n", mpd_connection_get_error_message(c));
mpd_connection_free(c);
return EXIT_FAILURE;
if (revive) {
if (!mpd_connection_clear_error(conn)) {
mpd_connection_free(conn);
conn = mpd_connection_new(NULL, 0, 0);
}
} else {
return EXIT_FAILURE;
}
}
return 0;
}
static void
@ -67,7 +75,7 @@ print_status(struct mpd_connection *conn, struct worker_meta *meta)
struct mpd_status *status = mpd_run_status(conn);
if (status == NULL)
return handle_error(conn);
return handle_error(conn, false);
const enum mpd_state state = mpd_status_get_state(status);
@ -104,8 +112,10 @@ print_status(struct mpd_connection *conn, struct worker_meta *meta)
const unsigned remaining_secs = remaining % 60;
mpd_status_free(status);
if (mpd_connection_get_error(conn) != MPD_ERROR_SUCCESS)
return handle_error(conn);
if (handle_error(conn, false)) {
return 1;
}
char artist[256];
char album[256];
@ -117,8 +127,9 @@ print_status(struct mpd_connection *conn, struct worker_meta *meta)
get_tag(song, title, MPD_TAG_TITLE);
mpd_song_free(song);
if (mpd_connection_get_error(conn) != MPD_ERROR_SUCCESS)
return handle_error(conn);
if (handle_error(conn, false)) {
return 1;
}
// the full song label. would be cool if this was customizable at runtime
char full_label[strlen(artist) + strlen(title) + 4];
@ -170,10 +181,8 @@ status_loop(void* worker_meta)
struct worker_meta *meta = (struct worker_meta*)worker_meta;
struct mpd_connection *conn = mpd_connection_new(NULL, 0, 0);
for (;;) {
if (meta->stop) {
break;
}
while (!meta->stop) {
handle_error(conn, true);
long long start = current_timestamp();
print_status(conn, meta);
@ -192,8 +201,9 @@ enum click_command {
};
void
mpd_run_command(struct worker_meta *meta, enum click_command command) {
struct mpd_connection *conn = mpd_connection_new(NULL, 0, 0);
mpd_run_command(struct worker_meta *meta, struct mpd_connection *conn, enum click_command command) {
handle_error(conn, true);
switch (command) {
case TOGGLE_PAUSE:
mpd_run_toggle_pause(conn);
@ -213,7 +223,6 @@ mpd_run_command(struct worker_meta *meta, enum click_command command) {
}
print_status(conn, meta);
mpd_connection_free(conn);
}
@ -226,26 +235,28 @@ int main(void) {
return 1;
}
for (;;) {
struct mpd_connection *conn = mpd_connection_new(NULL, 0, 0);
while (!meta.stop) {
char *line = NULL;
size_t size;
if (getline(&line, &size, stdin) != -1) {
if (strcmp(line, "1\n") == 0) {
mpd_run_command(&meta, PREVIOUS);
mpd_run_command(&meta, conn, PREVIOUS);
} else if (strcmp(line, "2\n") == 0) {
mpd_run_command(&meta, TOGGLE_PAUSE);
mpd_run_command(&meta, conn, TOGGLE_PAUSE);
} else if (strcmp(line, "3\n") == 0) {
mpd_run_command(&meta, NEXT);
mpd_run_command(&meta, conn, NEXT);
} else if (strcmp(line, "4\n") == 0) {
mpd_run_command(&meta, SEEK_FWD);
mpd_run_command(&meta, conn, SEEK_FWD);
} else if (strcmp(line, "5\n") == 0) {
mpd_run_command(&meta, SEEK_BCKWD);
mpd_run_command(&meta, conn, SEEK_BCKWD);
}
free(line);
}
}
mpd_connection_free(conn);
if(pthread_join(update_thread, NULL)) {
fprintf(stderr, "Error joining thread\n");