/*
- * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2011 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
/** \file audiod.c the paraslash's audio daemon */
#include <regex.h>
#include <sys/types.h>
-#include <dirent.h>
#include <signal.h>
-#include <openssl/rc4.h>
#include <stdbool.h>
#include "para.h"
#include "write.h"
#include "write_common.h"
#include "signal.h"
+#include "version.h"
/** define the array of error lists needed by para_audiod */
INIT_AUDIOD_ERRLISTS;
struct timeval restart_barrier;
/** Last time we received status data from para_server. */
struct timeval last_status_read;
+ size_t min_iqs;
/** The offset value announced by para_server. */
int offset_seconds;
/** The length of the current audio file as announced by para_server. */
struct timeval clock_diff_barrier;
/** Number of the audio format as announced by para_server. */
int current_audio_format_num;
+ /* The status task btrn is the child of the client task. */
+ struct btr_node *btrn;
};
/** The array of status items sent by para_server. */
* \sa struct status_task
*/
static struct status_task *stat_task = &status_task_struct;
-static struct timeval initial_delay_barrier;
/**
* the task for handling audiod commands
#define FOR_EACH_AUDIO_FORMAT(af) for (af = 0; af < NUM_AUDIO_FORMATS; af++)
/**
- * get the audio format number
- * \param name the name of the audio format
+ * Get the audio format number.
+ *
+ * \param name The name of the audio format.
*
* \return The audio format number on success, -E_UNSUPPORTED_AUDIO_FORMAT if
* \a name is not a supported audio format.
*/
-int get_audio_format_num(const char *name)
+static int get_audio_format_num(const char *name)
{
int i;
return -E_UNSUPPORTED_AUDIO_FORMAT;
}
+static int get_matching_audio_format_nums(const char *re)
+{
+ int i, ret;
+ regex_t preg;
+
+ ret = para_regcomp(&preg, re, REG_EXTENDED | REG_NOSUB);
+ if (ret < 0)
+ return ret;
+ ret = 0;
+ FOR_EACH_AUDIO_FORMAT(i)
+ if (regexec(&preg, audio_formats[i], 0, NULL, 0) != REG_NOMATCH)
+ ret |= (1 << i);
+ regfree(&preg);
+ return ret;
+}
+
+/**
+ * Compute the play time based on information of the given slot.
+ *
+ * \param slot_num The slot number (negative means: no slot).
+ *
+ * This computes a string of the form "0:07 [3:33] (3%/3:40)" using information
+ * from the status items received from para_server and the start time of the
+ * (first) writer of the given slot.
+ *
+ * It has to to take into account that probably the stream was not started at
+ * the beginning of the file, that the clock between the server and the client
+ * host may differ and that playback of the stream was delayed, e.g. because
+ * the prebuffer filter is used in the filter configuration of the given slot.
+ *
+ * If no writer is active in the given slot, or \a slot_num is negative
+ * (indicating that para_audiod runs in standby mode), an approximation based
+ * only on the status items is computed and the returned string is prefixed
+ * with "~".
+ *
+ * \return A string that must be freed by the caller.
+ */
char *get_time_string(int slot_num)
{
int ret, seconds = 0, length;
length / 60,
length % 60
);
- PARA_DEBUG_LOG("slot %d: %s\n", slot_num, msg);
+ //PARA_DEBUG_LOG("slot %d: %s\n", slot_num, msg);
return msg;
empty:
return para_strdup(NULL);
{
struct slot_info *s = &slot[slot_num];
struct audio_format_info *a;
- struct timeval restart_delay = {0, 200 * 1000};
if (s->format < 0 || !s->receiver_node)
return;
btr_free_node(s->receiver_node->btrn);
free(s->receiver_node);
s->receiver_node = NULL;
- tv_add(now, &restart_delay, &afi[s->format].restart_barrier);
+ tv_add(now, &(struct timeval)EMBRACE(0, 200 * 1000),
+ &a->restart_barrier);
}
static void writer_cleanup(struct writer_node *wn)
if (s->format < 0)
return;
+ assert(s->wns);
a = afi + s->format;
if (a->num_writers == 0)
writer_cleanup(s->wns);
s->wns = NULL;
}
-static void _close_filters(struct slot_info *s)
+static void close_filters(struct slot_info *s)
{
int i;
struct audio_format_info *a = afi + s->format;
if (!fn)
continue;
f = filters + fn->filter_num;
- f->close(fn);
+ if (f->close)
+ f->close(fn);
btr_free_node(fn->btrn);
}
free(s->fns);
s->fns = NULL;
}
+/*
+ * Whenever a task commits suicide by returning from post_select with t->error
+ * < 0, it also removes its btr node. We do exactly that to kill a running
+ * task. Note that the scheduler checks t->error also _before_ each pre/post
+ * select call, so the victim will never be scheduled again.
+ */
+static void kill_btrn(struct btr_node *btrn, struct task *t, int error)
+{
+ if (t->error < 0)
+ return;
+ t->error = error;
+ btr_remove_node(btrn);
+}
+
static void kill_all_decoders(int error)
{
- int i, j;
+ int i;
FOR_EACH_SLOT(i) {
- struct slot_info *s = &slot[i];
- struct audio_format_info *a;
+ struct slot_info *s = slot + i;
if (s->format < 0)
continue;
- a = afi + s->format;
- if (s->wns)
- for (j = 0; j < a->num_writers; j++)
- s->wns[j].task.error = error;
- if (s->fns)
- for (j = 0; j < a->num_writers; j++)
- s->fns[j].task.error = error;
- if (s->receiver_node)
- s->receiver_node->task.error = error;
+ if (!s->receiver_node)
+ continue;
+ kill_btrn(s->receiver_node->btrn, &s->receiver_node->task,
+ error);
}
}
return -E_NO_MORE_SLOTS;
}
-/**
- * get the number of filters
- *
- * \param audio_format_num the number identifying the audio format
- *
- * \return the number of filters for the given audio format
- *
- * \sa struct filter;
- */
-int num_filters(int audio_format_num)
-{
- return afi[audio_format_num].num_filters;
-}
-
static void open_filters(struct slot_info *s)
{
struct audio_format_info *a = afi + s->format;
fn->conf = a->filter_conf[i];
fn->task.pre_select = f->pre_select;
fn->task.post_select = f->post_select;
- fn->btrn = btr_new_node(f->name, parent, f->execute, fn);
+
+ fn->btrn = btr_new_node(&(struct btr_node_description)
+ EMBRACE(.name = f->name, .parent = parent,
+ .handler = f->execute, .context = fn));
+
f->open(fn);
register_task(&fn->task);
parent = fn->btrn;
PARA_NOTICE_LOG("%s filter %d/%d (%s) started in slot %d\n",
- audio_formats[s->format], i, nf, f->name, s - slot);
- sprintf(fn->task.status, "%s (slot %d)", f->name, s - slot);
+ audio_formats[s->format], i, nf, f->name, (int)(s - slot));
+ sprintf(fn->task.status, "%s (slot %d)", f->name, (int)(s - slot));
}
}
int ret, slot_num;
struct receiver *r = a->receiver;
struct receiver_node *rn;
- const struct timeval restart_delay = {2, 0};
+ tv_add(now, &(struct timeval)EMBRACE(2, 0), &a->restart_barrier);
ret = get_empty_slot();
if (ret < 0)
- goto err;
+ return ret;
slot_num = ret;
- s = &slot[slot_num];
- s->format = format;
- s->receiver_node = para_calloc(sizeof(struct receiver_node));
- rn = s->receiver_node;
+ rn = para_calloc(sizeof(*rn));
rn->receiver = r;
rn->conf = a->receiver_conf;
- rn->btrn = btr_new_node(r->name, NULL, NULL, rn);
+ rn->btrn = btr_new_node(&(struct btr_node_description)
+ EMBRACE(.name = r->name, .context = rn));
ret = r->open(rn);
if (ret < 0) {
btr_free_node(rn->btrn);
free(rn);
- s->receiver_node = NULL;
- goto err;
+ return ret;
}
+ s = &slot[slot_num];
+ s->format = format;
+ s->receiver_node = rn;
PARA_NOTICE_LOG("started %s: %s receiver in slot %d\n",
- audio_formats[s->format], r->name, slot_num);
+ audio_formats[format], r->name, slot_num);
rn->task.pre_select = r->pre_select;
rn->task.post_select = r->post_select;
sprintf(rn->task.status, "%s receiver node", r->name);
register_task(&rn->task);
- ret = slot_num;
-err:
- if (ret < 0)
- PARA_ERROR_LOG("%s\n", para_strerror(-ret));
- tv_add(now, &restart_delay, &afi[format].restart_barrier);
- return ret;
+ return slot_num;
}
-/* return: 0: Not running, 1: Running, -1: Running but eof (or error) */
-static int receiver_running(int format)
+static bool receiver_running(void)
{
- int i, ret = 0;
+ int i;
+ long unsigned ss1 = stat_task->server_stream_start.tv_sec;
FOR_EACH_SLOT(i) {
struct slot_info *s = &slot[i];
- if (s->format != format)
- continue;
+ long unsigned ss2 = s->server_stream_start.tv_sec;
+
if (!s->receiver_node)
continue;
if (s->receiver_node->task.error >= 0)
- return 1;
- ret = -1;
+ return true;
+ if (ss1 == ss2)
+ return true;
}
- return ret;
+ return false;
}
+/**
+ * Return the root node of the current buffer tree.
+ *
+ * This is only used for stream grabbing.
+ *
+ * \return \p NULL if no slot is currently active. If more than one buffer tree
+ * exists, the node corresponding to the most recently started receiver is
+ * returned.
+ */
struct btr_node *audiod_get_btr_root(void)
{
int i, newest_slot = -1;
return slot[newest_slot].receiver_node->btrn;
}
-/* returns slot num on success. */
-static int open_current_receiver(struct sched *s)
+/* whether a new instance of a decoder should be started. */
+static bool must_start_decoder(void)
{
- struct timeval diff;
- int ret, cafn = stat_task->current_audio_format_num;
+ int cafn = stat_task->current_audio_format_num;
+ unsigned vs = stat_task->vss_status;
- if (cafn < 0 || !stat_task->ct)
- return -1;
- /* Do nothing if the 'N' flag is set or the 'P' flag is unset */
- if (stat_task->vss_status != VSS_STATUS_FLAG_PLAYING)
- return -1;
- ret = receiver_running(cafn);
- if (ret > 0) /* already running and not eof */
- return -1;
- if (ret < 0) { /* eof */
- /*
- * para_server uses a zero start time during the announcement
- * period, i.e. before it sends the first chunk. Wait until
- * this period begins to avoid restarting the receiver that
- * belongs to the file just completed.
- */
- if (stat_task->server_stream_start.tv_sec != 0) {
- sched_request_timeout_ms(100, s);
- return -1;
- }
- }
- if (tv_diff(now, &afi[cafn].restart_barrier, &diff) < 0) {
- if (tv_diff(&s->timeout, &diff, NULL) > 0)
- sched_request_timeout(&diff, s);
- else
- sched_min_delay(s);
- return -1;
- }
- /* start a new receiver */
- return open_receiver(cafn);
+ if (audiod_status != AUDIOD_ON)
+ return false;
+ if (cafn < 0)
+ return false;
+ if (!stat_task->ct)
+ return false;
+ if (vs & VSS_STATUS_FLAG_NEXT)
+ return false;
+ if (!(vs & VSS_STATUS_FLAG_PLAYING))
+ return false;
+ if (receiver_running())
+ return false;
+ if (tv_diff(now, &afi[cafn].restart_barrier, NULL) < 0)
+ return false;
+ return true;
}
static unsigned compute_time_diff(const struct timeval *status_time)
&tmp);
stat_task->sa_time_diff = tmp;
PARA_INFO_LOG("time diff (cur/avg): %s%lums/%s%lums\n",
- sign > 0? "+" : "-",
+ sign < 0? "-" : "+",
tv2ms(&diff),
- sa_time_diff_sign ? "+" : "-",
+ sa_time_diff_sign < 0? "-" : "+",
tv2ms(&stat_task->sa_time_diff)
);
out:
break;
case SI_STREAM_START:
if (sscanf(buf, "%lu.%lu", &sec, &usec) == 2) {
- struct timeval a_start, delay;
- delay.tv_sec = conf.stream_delay_arg / 1000;
- delay.tv_usec = (conf.stream_delay_arg % 1000) * 1000;
stat_task->server_stream_start.tv_sec = sec;
stat_task->server_stream_start.tv_usec = usec;
- if (compute_time_diff(NULL) > 2) {
- if (stat_task->sa_time_diff_sign < 0)
- tv_add(&stat_task->server_stream_start,
- &stat_task->sa_time_diff, &a_start);
- else
- tv_diff(&stat_task->server_stream_start,
- &stat_task->sa_time_diff, &a_start);
- tv_add(&a_start, &delay, &initial_delay_barrier);
- }
}
break;
case SI_CURRENT_TIME:
static int parse_stream_command(const char *txt, char **cmd)
{
- char *p = strchr(txt, ':');
- int i;
+ int ret, len;
+ char *re, *p = strchr(txt, ':');
if (!p)
return -E_MISSING_COLON;
- p++;
- FOR_EACH_AUDIO_FORMAT(i) {
- if (strncmp(txt, audio_formats[i], strlen(audio_formats[i])))
- continue;
- *cmd = p;
- return i;
- }
- return -E_UNSUPPORTED_AUDIO_FORMAT;
+ *cmd = p + 1;
+ len = p - txt;
+ re = malloc(len + 1);
+ strncpy(re, txt, len);
+ re[len] = '\0';
+ ret = get_matching_audio_format_nums(re);
+ free(re);
+ return ret;
}
static int add_filter(int format, char *cmdline)
{
struct audio_format_info *a = &afi[format];
int filter_num, nf = a->num_filters;
+ void *cfg;
- filter_num = check_filter_arg(cmdline, &a->filter_conf[nf]);
+ filter_num = check_filter_arg(cmdline, &cfg);
if (filter_num < 0)
return filter_num;
+ a->filter_conf = para_realloc(a->filter_conf,
+ (nf + 1) * sizeof(void *));
+ a->filter_nums = para_realloc(a->filter_nums,
+ (nf + 1) * sizeof(unsigned));
a->filter_nums[nf] = filter_num;
+ a->filter_conf[nf] = cfg;
a->num_filters++;
PARA_INFO_LOG("%s filter %d: %s\n", audio_formats[format], nf,
filters[filter_num].name);
static int parse_writer_args(void)
{
- int i, ret, nw;
+ int i, ret;
char *cmd;
struct audio_format_info *a;
- nw = PARA_MAX(1U, conf.writer_given);
- PARA_INFO_LOG("maximal number of writers: %d\n", nw);
- FOR_EACH_AUDIO_FORMAT(i) {
- a = &afi[i];
- a->writer_conf = para_malloc(nw * sizeof(void *));
- a->writer_nums = para_malloc(nw * sizeof(int));
- a->num_writers = 0;
- }
for (i = 0; i < conf.writer_given; i++) {
void *wconf;
- int writer_num;
+ int j, nw, writer_num, af_mask;
+
ret = parse_stream_command(conf.writer_arg[i], &cmd);
if (ret < 0)
goto out;
- a = &afi[ret];
- nw = a->num_writers;
- wconf = check_writer_arg(cmd, &writer_num);
- if (!wconf) {
- ret = writer_num;
- goto out;
+ af_mask = ret;
+ FOR_EACH_AUDIO_FORMAT(j) {
+ a = afi + j;
+ if ((af_mask & (1 << j)) == 0) /* no match */
+ continue;
+ ret = -E_WRITE_COMMON_SYNTAX;
+ wconf = check_writer_arg(cmd, &writer_num);
+ if (!wconf)
+ goto out;
+ nw = a->num_writers;
+ a->writer_nums = para_realloc(a->writer_nums, (nw + 1) * sizeof(int));
+ a->writer_conf = para_realloc(a->writer_conf, (nw + 1) * sizeof(void *));
+ a->writer_nums[nw] = writer_num;
+ a->writer_conf[nw] = wconf;
+ PARA_INFO_LOG("%s writer #%d: %s\n", audio_formats[writer_num],
+ nw, writer_names[writer_num]);
+ a->num_writers++;
}
- a->writer_nums[nw] = writer_num;
- a->writer_conf[nw] = wconf;
- PARA_INFO_LOG("%s writer #%d: %s\n", audio_formats[ret],
- nw, writer_names[writer_num]);
- a->num_writers++;
}
ret = 1;
out:
struct audio_format_info *a;
for (i = conf.receiver_given - 1; i >= 0; i--) {
- char *arg = conf.receiver_arg[i];
- char *recv_arg = strchr(arg, ':');
- ret = -E_MISSING_COLON;
- if (!recv_arg)
- goto out;
- *recv_arg = '\0';
- recv_arg++;
- ret = get_audio_format_num(arg);
+ char *arg;
+ int j, af_mask;
+
+ ret = parse_stream_command(conf.receiver_arg[i], &arg);
if (ret < 0)
goto out;
- afi[ret].receiver_conf = check_receiver_arg(recv_arg, &receiver_num);
- if (!afi[ret].receiver_conf) {
+ af_mask = ret;
+ FOR_EACH_AUDIO_FORMAT(j) {
+ a = afi + j;
+ if ((af_mask & (1 << j)) == 0) /* no match */
+ continue;
+ /*
+ * If multiple receivers are given for this audio format, the
+ * last one wins and we have to free the previous receiver
+ * config here. Since we are iterating backwards, the winning
+ * receiver arg is in fact the first one given.
+ */
+ if (a->receiver_conf)
+ a->receiver->free_config(a->receiver_conf);
+ a->receiver_conf = check_receiver_arg(arg, &receiver_num);
ret = -E_RECV_SYNTAX;
- goto out;
+ if (!a->receiver_conf)
+ goto out;
+ a->receiver = receivers + receiver_num;
}
- afi[ret].receiver = &receivers[receiver_num];
}
- /* use the first available receiver with no arguments
- * for those audio formats for which no receiver
- * was specified
+ /*
+ * Use the first available receiver with no arguments for those audio
+ * formats for which no receiver was specified.
*/
cmd = para_strdup(receivers[0].name);
FOR_EACH_AUDIO_FORMAT(i) {
return -E_RECV_SYNTAX;
a->receiver = &receivers[receiver_num];
}
+ FOR_EACH_AUDIO_FORMAT(i) {
+ a = afi + i;
+ PARA_INFO_LOG("receiving %s streams via %s receiver\n",
+ audio_formats[i], a->receiver->name);
+ }
ret = 1;
out:
free(cmd);
if (a->num_filters)
continue; /* no default -- nothing to to */
+ /*
+ * udp and dccp streams are fec-encoded, so add fecdec as the
+ * first filter.
+ */
+ if (strcmp(afi[i].receiver->name, "udp") == 0 ||
+ strcmp(afi[i].receiver->name, "dccp") == 0) {
+ tmp = para_strdup("fecdec");
+ add_filter(i, tmp);
+ free(tmp);
+ if (ret < 0)
+ goto out;
+ }
/* add "dec" to audio format name */
tmp = make_message("%sdec", audio_formats[i]);
for (j = 0; filters[j].name; j++)
static int parse_filter_args(void)
{
- int i, ret, nf;
+ int i, j, ret, af_mask;
- nf = PARA_MAX(1U, conf.filter_given);
- PARA_INFO_LOG("maximal number of filters: %d\n", nf);
- FOR_EACH_AUDIO_FORMAT(i) {
- afi[i].filter_conf = para_malloc(nf * sizeof(void *));
- afi[i].filter_nums = para_malloc(nf * sizeof(unsigned));
- }
if (!conf.no_default_filters_given)
return init_default_filters();
for (i = 0; i < conf.filter_given; i++) {
- char *arg = conf.filter_arg[i];
- char *filter_name = strchr(arg, ':');
- ret = -E_MISSING_COLON;
- if (!filter_name)
- goto out;
- *filter_name = '\0';
- filter_name++;
- ret = get_audio_format_num(arg);
- if (ret < 0)
- goto out;
- ret = add_filter(ret, filter_name);
+ char *arg;
+ ret = parse_stream_command(conf.filter_arg[i], &arg);
if (ret < 0)
goto out;
+ af_mask = ret;
+ FOR_EACH_AUDIO_FORMAT(j) {
+ if ((af_mask & (1 << j)) == 0) /* no match */
+ continue;
+ ret = add_filter(j, arg);
+ if (ret < 0)
+ goto out;
+ }
}
ret = init_default_filters(); /* use default values for the rest */
out:
para_fd_set(st->fd, &s->rfds, &s->max_fileno);
}
-static void signal_post_select(struct sched *s, struct task *t)
+static void signal_post_select(struct sched *s, __a_unused struct task *t)
{
- struct signal_task *st = container_of(t, struct signal_task, task);
+ int signum;
- if (!FD_ISSET(st->fd, &s->rfds))
- return;
-
- st->signum = para_next_signal();
- switch (st->signum) {
+ signum = para_next_signal(&s->rfds);
+ switch (signum) {
case SIGINT:
case SIGTERM:
case SIGHUP:
- PARA_EMERG_LOG("terminating on signal %d\n", st->signum);
+ PARA_EMERG_LOG("terminating on signal %d\n", signum);
clean_exit(EXIT_FAILURE, "caught deadly signal");
}
}
last_status_dump = *now;
}
- if (!FD_ISSET(ct->fd, &s->rfds))
- return;
- ret = handle_connect(ct->fd);
+ ret = handle_connect(ct->fd, &s->rfds);
if (ret < 0)
PARA_ERROR_LOG("%s\n", para_strerror(-ret));
+ audiod_status_dump();
}
static void init_command_task(struct command_task *ct)
tv_add(now, &delay, &stat_task->restart_barrier);
}
-static bool try_to_close_slot(int slot_num)
+static void try_to_close_slot(int slot_num)
{
struct slot_info *s = &slot[slot_num];
struct audio_format_info *a = afi + s->format;
int i;
if (s->format < 0)
- return false;
- if (s->receiver_node && s->receiver_node->task.error != -E_TASK_UNREGISTERED)
- return false;
+ return;
+ if (s->receiver_node && s->receiver_node->task.error >= 0)
+ return;
for (i = 0; i < a->num_filters; i++)
- if (s->fns && s->fns[i].task.error != -E_TASK_UNREGISTERED)
- return false;
- for (i = 0; i < a->num_writers; i++)
- if (s->wns && s->wns[i].task.error != -E_TASK_UNREGISTERED)
- return false;
+ if (s->fns && s->fns[i].task.error >= 0)
+ return;
+ if (a->num_writers > 0) {
+ for (i = 0; i < a->num_writers; i++)
+ if (s->wns && s->wns[i].task.error >= 0)
+ return;
+ } else {
+ if (s->wns && s->wns[0].task.error >= 0)
+ return;
+ }
PARA_INFO_LOG("closing slot %d\n", slot_num);
close_writers(s);
- _close_filters(s);
+ close_filters(s);
close_receiver(slot_num);
clear_slot(slot_num);
- return true;
}
/*
* Check if any receivers/filters/writers need to be started and do so if
* necessary.
*/
-static void start_stop_decoders(struct sched *s)
+static void start_stop_decoders(void)
{
int i, ret;
struct slot_info *sl;
struct audio_format_info *a;
FOR_EACH_SLOT(i)
- if (try_to_close_slot(i))
- sched_min_delay(s);
-// if (audiod_status != AUDIOD_ON ||
-// !(stat_task->vss_status & VSS_STATUS_FLAG_PLAYING))
-// return kill_all_decoders(-E_NOT_PLAYING);
- ret = open_current_receiver(s);
- if (ret < 0)
+ try_to_close_slot(i);
+ if (audiod_status != AUDIOD_ON ||
+ !(stat_task->vss_status & VSS_STATUS_FLAG_PLAYING))
+ return kill_all_decoders(-E_NOT_PLAYING);
+ if (!must_start_decoder())
return;
+ ret = open_receiver(stat_task->current_audio_format_num);
+ if (ret < 0) {
+ PARA_ERROR_LOG("%s\n", para_strerror(-ret));
+ return;
+ }
sl = slot + ret;
a = afi + sl->format;
if (a->num_filters)
open_writers(sl);
activate_grab_clients();
btr_log_tree(sl->receiver_node->btrn, LL_NOTICE);
+}
+
+static void status_pre_select(struct sched *s, struct task *t)
+{
+ struct status_task *st = container_of(t, struct status_task, task);
+ int ret, cafn = stat_task->current_audio_format_num;
+
+ if (must_start_decoder())
+ goto min_delay;
+ ret = btr_node_status(st->btrn, 0, BTR_NT_LEAF);
+ if (ret > 0)
+ goto min_delay;
+ if (st->ct && audiod_status == AUDIOD_OFF)
+ goto min_delay;
+ if (!st->ct && audiod_status != AUDIOD_OFF)
+ sched_request_barrier_or_min_delay(&st->restart_barrier, s);
+ if (cafn >= 0)
+ sched_request_barrier(&afi[cafn].restart_barrier, s);
+ /*
+ * If para_server is playing we'd like to have a smooth time display
+ * even if we are running in standby mode. So we request a timeout that
+ * expires at the next full second.
+ */
+ if (stat_task->vss_status & VSS_STATUS_FLAG_PLAYING)
+ sched_request_timeout_ms(1000 - now->tv_usec / 1000, s);
+ return;
+min_delay:
sched_min_delay(s);
}
/* restart the client task if necessary */
-static void status_pre_select(struct sched *s, struct task *t)
+static void status_post_select(__a_unused struct sched *s, struct task *t)
{
struct status_task *st = container_of(t, struct status_task, task);
if (!st->ct)
goto out;
if (st->ct->task.error >= 0) {
- st->ct->task.error = -E_AUDIOD_OFF;
+ kill_btrn(st->ct->btrn, &st->ct->task, -E_AUDIOD_OFF);
goto out;
}
- if (st->ct->task.error != -E_TASK_UNREGISTERED)
+ if (st->ct->task.error >= 0)
goto out;
close_stat_pipe();
st->clock_diff_count = conf.clock_diff_count_arg;
goto out;
}
if (st->ct) {
+ char *buf;
+ size_t sz;
int ret;
if (st->ct->task.error < 0) {
- if (st->ct->task.error != -E_TASK_UNREGISTERED)
+ if (st->ct->task.error >= 0)
goto out;
close_stat_pipe();
goto out;
}
if (st->ct->status != CL_RECEIVING)
goto out;
- ret = for_each_stat_item(st->ct->buf, st->ct->loaded,
- update_item);
- if (ret < 0) {
- st->ct->task.error = ret;
- goto out;
- }
- if (st->ct->loaded != ret) {
- st->last_status_read = *now;
- st->ct->loaded = ret;
- } else {
+ ret = btr_node_status(st->btrn, st->min_iqs, BTR_NT_LEAF);
+ if (ret <= 0) {
struct timeval diff;
tv_diff(now, &st->last_status_read, &diff);
if (diff.tv_sec > 61)
- st->ct->task.error = -E_STATUS_TIMEOUT;
+ kill_btrn(st->ct->btrn, &st->ct->task,
+ -E_STATUS_TIMEOUT);
+ goto out;
}
+ btr_merge(st->btrn, st->min_iqs);
+ sz = btr_next_buffer(st->btrn, &buf);
+ ret = for_each_stat_item(buf, sz, update_item);
+ if (ret < 0) {
+ kill_btrn(st->ct->btrn, &st->ct->task, ret);
+ goto out;
+ }
+ if (sz != ret) {
+ btr_consume(st->btrn, sz - ret);
+ st->last_status_read = *now;
+ st->min_iqs = 0;
+ } else /* current status item crosses buffers */
+ st->min_iqs = sz + 1;
goto out;
}
+ btr_drain(st->btrn);
+ st->current_audio_format_num = -1;
if (tv_diff(now, &st->restart_barrier, NULL) < 0)
goto out;
if (st->clock_diff_count) { /* get status only one time */
int argc = 5;
PARA_INFO_LOG("clock diff count: %d\n", st->clock_diff_count);
st->clock_diff_count--;
- client_open(argc, argv, &st->ct, NULL);
+ client_open(argc, argv, &st->ct, NULL, NULL, st->btrn);
set_stat_task_restart_barrier(2);
- sched_min_delay(s);
} else {
char *argv[] = {"audiod", "--", "stat", "-p", NULL};
int argc = 4;
- client_open(argc, argv, &st->ct, NULL);
+ client_open(argc, argv, &st->ct, NULL, NULL, st->btrn);
set_stat_task_restart_barrier(5);
- sched_min_delay(s);
}
free(stat_item_values[SI_BASENAME]);
stat_item_values[SI_BASENAME] = para_strdup(
stat_client_write_item(SI_BASENAME);
st->last_status_read = *now;
out:
- start_stop_decoders(s);
+ start_stop_decoders();
}
static void init_status_task(struct status_task *st)
{
memset(st, 0, sizeof(struct status_task));
st->task.pre_select = status_pre_select;
+ st->task.post_select = status_post_select;
st->sa_time_diff_sign = 1;
st->clock_diff_count = conf.clock_diff_count_arg;
st->current_audio_format_num = -1;
- sprintf(st->task.status, "status task");
+ sprintf(st->task.status, "stat");
+ st->btrn = btr_new_node(&(struct btr_node_description)
+ EMBRACE(.name = "stat"));
}
static void set_initial_status(void)
static void init_colors_or_die(void)
{
- int ret, i;
+ int i;
if (!want_colors())
return;
daemon_set_default_log_colors();
daemon_set_flag(DF_COLOR_LOG);
- for (i = 0; i < conf.log_color_given; i++) {
- ret = daemon_set_log_color(conf.log_color_arg[i]);
- if (ret < 0)
- exit(EXIT_FAILURE);
- }
+ for (i = 0; i < conf.log_color_given; i++)
+ daemon_set_log_color_or_die(conf.log_color_arg[i]);
}
/**
projects / paraslash.git / blobdiff