fix two bugs concerning blocking fds
[paraslash.git] / audiod.c
index ef83020186addb8f1825ececf7821413d253b8d5..40c75952570eb60c09ddf7904eda43cc37f90108 100644 (file)
--- a/audiod.c
+++ b/audiod.c
@@ -41,7 +41,7 @@
 /** define the array of error lists needed by para_audiod */
 INIT_AUDIOD_ERRLISTS;
 /** define the array containing all supported audio formats */
-DEFINE_AUDIO_FORMAT_ARRAY;
+const char *audio_formats[] = {AUDIOD_AUDIO_FORMAT_ARRAY NULL};
 
 /** defines how to handle one supported audio format */
 struct audio_format_info {
@@ -262,7 +262,12 @@ static void close_stat_pipe(void)
        stat_task->stat_item_values[SI_STATUS_BAR] = make_message(
                "%s:no connection to para_server\n",
                status_item_list[SI_STATUS_BAR]);
-       stat_client_write(stat_task->stat_item_values[SI_STATUS_BAR], SI_STATUS_BAR);
+       stat_client_write(stat_task->stat_item_values[SI_STATUS_BAR],
+               SI_STATUS_BAR);
+       if (stat_task->clock_diff_count) {
+               stat_task->clock_diff_barrier.tv_sec = now->tv_sec + 1;
+               stat_task->clock_diff_barrier.tv_usec = now->tv_usec;
+       }
 }
 
 void __noreturn clean_exit(int status, const char *msg)
@@ -456,10 +461,12 @@ static int open_current_receiver(struct sched *s)
 {
        int i;
        struct timeval diff;
+       char *audio_format = stat_task->stat_item_values[SI_FORMAT];
 
-       if (!stat_task->af_status || !stat_task->pcd)
+       if (!audio_format || !stat_task->pcd)
                return 0;
-       i = get_audio_format_num(stat_task->af_status);
+       i = get_audio_format_num(audio_format + strlen(
+               status_item_list[SI_FORMAT]) + 1);
        if (i < 0)
                return 0;
        if (receiver_running(i))
@@ -500,7 +507,7 @@ static void compute_time_diff(const struct timeval *status_time)
                count > 10? sign : sign * time_smooth, &diff,
                &tmp);
        stat_task->sa_time_diff = tmp;
-       PARA_DEBUG_LOG("time diff (cur/avg): %s%lums/%s%lums\n",
+       PARA_INFO_LOG("time diff (cur/avg): %s%lums/%s%lums\n",
                sign > 0? "+" : "-",
                tv2ms(&diff),
                sa_time_diff_sign ? "+" : "-",
@@ -523,6 +530,8 @@ static void check_stat_line(char *line)
                PARA_WARNING_LOG("invalid status line: %s\n", line);
                return;
        }
+       if (stat_task->clock_diff_count && itemnum != SI_CURRENT_TIME)
+               return;
        tmp = make_message("%s\n", line);
        stat_client_write(tmp, itemnum);
        free(tmp);
@@ -533,10 +542,6 @@ static void check_stat_line(char *line)
        case SI_STATUS:
                stat_task->playing = strstr(line, "playing")? 1 : 0;
                break;
-       case SI_FORMAT:
-               free(stat_task->af_status);
-               stat_task->af_status = para_strdup(line + ilen + 1);
-               break;
        case SI_OFFSET:
                stat_task->offset_seconds = atoi(line + ilen + 1);
                break;
@@ -564,6 +569,8 @@ static void check_stat_line(char *line)
                        struct timeval tv = {sec, usec};
                        compute_time_diff(&tv);
                }
+               if (stat_task->clock_diff_count)
+                       stat_task->clock_diff_count--;
                break;
        }
 }
@@ -641,10 +648,6 @@ static void audiod_pre_select(struct sched *s, __a_unused struct task *t)
                if (!sl->fc || !*sl->fc->out_loaded || sl->wng)
                        continue;
                if (tv_diff(now, &initial_delay_barrier, &diff) > 0) {
-                       PARA_INFO_LOG("barrier: %lu:%lu, now: %lu, %lu\n",
-                               initial_delay_barrier.tv_sec,
-                               initial_delay_barrier.tv_usec,
-                               now->tv_sec, now->tv_usec);
                        open_writers(i);
                        s->timeout = min_delay;
                        continue;
@@ -661,7 +664,6 @@ static void audiod_post_select(__a_unused struct sched *s,
 {
        int i;
 
-       /* save away the current time for other users */
        t->ret = 1;
        FOR_EACH_SLOT(i)
                try_to_close_slot(i);
@@ -760,7 +762,6 @@ static int init_receivers(void)
        for (i = conf.receiver_given - 1; i >= 0; i--) {
                char *arg = conf.receiver_arg[i];
                char *recv_arg = strchr(arg, ':');
-               PARA_INFO_LOG("arg: %s\n", arg);
                ret = -E_MISSING_COLON;
                if (!recv_arg)
                        goto out;
@@ -956,8 +957,7 @@ static void command_post_select(struct sched *s, struct task *t)
        struct command_task *ct = t->private_data;
 
        t->ret = 1; /* always successful */
-       if (audiod_status != AUDIOD_OFF)
-               audiod_status_dump();
+       audiod_status_dump();
        if (!FD_ISSET(ct->fd, &s->rfds))
                return;
        ret = handle_connect(ct->fd);
@@ -1001,35 +1001,58 @@ static void status_event_handler(__a_unused struct task *t)
 static void status_pre_select(struct sched *s, struct task *t)
 {
        struct status_task *st = t->private_data;
-       int argc = 2;
-       char *argv[] = {"audiod", "stat", NULL};
+
        t->ret = 1;
        if (st->pcd && (audiod_status == AUDIOD_OFF || st->pcd->eof))
                close_stat_pipe();
-       if (!st->pcd && audiod_status != AUDIOD_OFF
-               && tv_diff(now, &st->restart_barrier, NULL) > 0) {
-               t->ret = client_parse_config(argc, argv, &st->pcd);
-               if (t->ret < 0)
-                       return;
-               t->ret = client_open(st->pcd);
-               if (t->ret < 0)
+       if (st->pcd || audiod_status == AUDIOD_OFF)
+               return;
+       if (!st->clock_diff_count && tv_diff(now, &st->restart_barrier, NULL)
+                       < 0)
+               return;
+       if (st->clock_diff_count) {
+               char *argv[] = {"audiod", "stat", "1", NULL};
+               int argc = 3;
+               if (tv_diff(now, &st->clock_diff_barrier, NULL) < 0)
                        return;
-               st->pcd->task.event_handler = client_task_event_handler;
-               s->timeout.tv_sec = 0;
-               s->timeout.tv_usec = 1;
+               PARA_INFO_LOG("clock diff count: %d\n", st->clock_diff_count);
+               t->ret = client_parse_config(argc, argv, &st->pcd);
+
+       } else {
+               char *argv[] = {"audiod", "stat", NULL};
+               int argc = 2;
+               t->ret = client_parse_config(argc, argv, &st->pcd);
        }
+
+       if (t->ret < 0)
+               return;
+       t->ret = client_open(st->pcd);
+       if (t->ret < 0)
+               return;
+       st->pcd->task.event_handler = client_task_event_handler;
+       s->timeout.tv_sec = 0;
+       s->timeout.tv_usec = 1;
 }
 
 static void status_post_select(__a_unused struct sched *s, struct task *t)
 {
        struct status_task *st = t->private_data;
+       unsigned bytes_left;
 
        t->ret = 1;
-       if (!st->pcd || !st->pcd->loaded
-                       || st->pcd->status != CL_RECEIVING)
+       if (!st->pcd || st->pcd->status != CL_RECEIVING)
                return;
-       st->pcd->loaded = for_each_line(st->pcd->buf, st->pcd->loaded,
+       bytes_left = for_each_line(st->pcd->buf, st->pcd->loaded,
                &check_stat_line);
+       if (st->pcd->loaded != bytes_left) {
+               st->last_status_read = *now;
+               st->pcd->loaded = bytes_left;
+       } else {
+               struct timeval diff;
+               tv_diff(now, &st->last_status_read, &diff);
+               if (diff.tv_sec > 61)
+                       close_stat_pipe();
+       }
 }
 
 static void init_status_task(struct status_task *st)
@@ -1040,6 +1063,7 @@ static void init_status_task(struct status_task *st)
        st->task.event_handler = status_event_handler;
        st->task.private_data = st;
        st->sa_time_diff_sign = 1;
+       st->clock_diff_count = conf.clock_diff_count_arg;
        sprintf(st->task.status, "status task");
 }