Merge commit 'meins/master'
[paraslash.git] / audiod.c
index 3f46acbcee062f71bd5a5d7e582262a5f26117ac..074c261067c4c7d0b8533dc989b77caff9020ac7 100644 (file)
--- a/audiod.c
+++ b/audiod.c
@@ -5,19 +5,21 @@
  */
 
 /** \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 "para.h"
 #include "error.h"
+#include "crypt.h"
 #include "audiod.cmdline.h"
 #include "list.h"
 #include "sched.h"
 #include "ggo.h"
 #include "recv.h"
 #include "filter.h"
-#include "grab_client.cmdline.h"
 #include "grab_client.h"
 #include "client.cmdline.h"
 #include "client.h"
@@ -49,8 +51,8 @@ struct audio_format_info {
        void **filter_conf;
        /** the number of filters that should be activated for this audio format */
        unsigned int num_writers;
-       /** pointer to the array of writers to be activated */
-       struct writer **writers;
+       /** Array of writer numbers to be activated. */
+       int *writer_nums;
        /** pointer to the array of writer configurations */
        void **writer_conf;
        /** do not start receiver/filters/writer before this time */
@@ -160,7 +162,7 @@ struct command_task {
  * \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(char *name)
+int get_audio_format_num(const char *name)
 {
        int i;
 
@@ -172,53 +174,65 @@ int get_audio_format_num(char *name)
        return -E_UNSUPPORTED_AUDIO_FORMAT;
 }
 
-char *get_time_string(struct timeval *newest_stime)
+char *get_time_string(int slot_num)
 {
-       struct timeval diff, adj_stream_start, tmp;
-       int total = 0, use_server_time = 1,
-               length_seconds = stat_task->length_seconds;
+       int ret, seconds = 0, length;
+       struct timeval *tmp, sum, sss, /* server stream start */
+               wtime, /* now - writer start */
+               rskip; /* receiver start - sss */
+       struct slot_info *s = slot_num < 0? NULL : &slot[slot_num];
 
+       if (audiod_status == AUDIOD_OFF)
+               goto empty;
        if (!(stat_task->vss_status & VSS_STATUS_FLAG_PLAYING)) {
-               if (length_seconds)
+               if (stat_task->length_seconds) /* paused */
                        return NULL;
-               return make_message("%s:\n", status_item_list[SI_PLAY_TIME]);
+               goto empty; /* stopped */
+       }
+       if (audiod_status == AUDIOD_ON && !s)
+               goto empty;
+       /* valid status items and playing */
+       if (s) { /* writer active in this slot */
+               length = s->seconds_total;
+               tmp = &s->server_stream_start;
+       } else { /* standby mode, rely on status items */
+               length = stat_task->length_seconds;
+               tmp = &stat_task->server_stream_start;
        }
-       if (audiod_status == AUDIOD_OFF)
-               goto out;
        if (stat_task->sa_time_diff_sign > 0)
-               tv_diff(&stat_task->server_stream_start, &stat_task->sa_time_diff,
-                       &adj_stream_start);
+               tv_diff(tmp, &stat_task->sa_time_diff, &sss);
        else
-               tv_add(&stat_task->server_stream_start, &stat_task->sa_time_diff,
-                       &adj_stream_start);
-       tmp = adj_stream_start;
-       if (newest_stime && audiod_status == AUDIOD_ON) {
-               tv_diff(newest_stime, &adj_stream_start, &diff);
-               if (tv2ms(&diff) < 5000) {
-                       tmp = *newest_stime;
-                       use_server_time = 0;
-               }
+               tv_add(tmp, &stat_task->sa_time_diff, &sss);
+       if (!s) {
+               struct timeval diff;
+               tv_diff(now, &sss, &diff);
+               seconds = diff.tv_sec + stat_task->offset_seconds;
+               goto out;
        }
-       tv_diff(now, &tmp, &diff);
-       total = diff.tv_sec + stat_task->offset_seconds;
-       if (total > length_seconds)
-               total = length_seconds;
-       if (total < 0)
-               total = 0;
+       tv_diff(now, &s->wstime, &wtime);
+       seconds = s->offset_seconds;
+       ret = tv_diff(&s->rstime, &sss, &rskip);
+       if (ret > 0) { /* audiod was started in the middle of the stream */
+               tv_add(&wtime, &rskip, &sum);
+               seconds += sum.tv_sec;
+       } else
+               seconds += wtime.tv_sec;
 out:
+       seconds = PARA_MIN(seconds, length);
+       seconds = PARA_MAX(seconds, 0);
        return make_message(
-               "%s: %s%d:%02d [%d:%02d] (%d%%/%d:%02d)\n",
-               status_item_list[SI_PLAY_TIME],
-               use_server_time? "~" : "",
-               total / 60,
-               total % 60,
-               (length_seconds - total) / 60,
-               (length_seconds - total) % 60,
-               length_seconds? (total * 100 + length_seconds / 2) /
-                       length_seconds : 0,
-               length_seconds / 60,
-               length_seconds % 60
+               "%s%d:%02d [%d:%02d] (%d%%/%d:%02d)",
+               s? "" : "~",
+               seconds / 60,
+               seconds % 60,
+               (length - seconds) / 60,
+               (length - seconds) % 60,
+               length? (seconds * 100 + length / 2) / length : 0,
+               length / 60,
+               length % 60
        );
+empty:
+       return para_strdup(NULL);
 }
 
 static int want_colors(void)
@@ -273,7 +287,7 @@ static void setup_signal_handling(void)
        para_install_sighandler(SIGINT);
        para_install_sighandler(SIGTERM);
        para_install_sighandler(SIGHUP);
-       signal(SIGPIPE, SIG_IGN);
+       para_sigaction(SIGPIPE, SIG_IGN);
 }
 
 static void clear_slot(int slot_num)
@@ -298,6 +312,7 @@ static void close_receiver(int slot_num)
        a->receiver->close(s->receiver_node);
        free(s->receiver_node);
        s->receiver_node = NULL;
+       stat_task->current_audio_format_num = -1;
 }
 
 static void kill_all_decoders(int error)
@@ -369,11 +384,11 @@ static void open_filters(int slot_num)
        PARA_INFO_LOG("opening %s filters\n", audio_formats[s->format]);
        s->fc = para_calloc(sizeof(struct filter_chain));
        s->fc->filter_nodes = para_malloc(nf * sizeof(struct filter_node));
-       s->fc->inbuf = s->receiver_node->buf;
+       s->fc->inbufp = &s->receiver_node->buf;
        s->fc->in_loaded = &s->receiver_node->loaded;
        s->fc->input_error = &s->receiver_node->task.error;
-       s->fc->task.pre_select = filter_pre_select;
-       s->fc->task.post_select = NULL;
+       s->fc->task.pre_select = NULL;
+       s->fc->task.post_select = filter_post_select;
        s->fc->task.error = 0;
        s->fc->num_filters = nf;
 
@@ -389,7 +404,7 @@ static void open_filters(int slot_num)
                f->open(fn);
                PARA_NOTICE_LOG("%s filter %d/%d (%s) started in slot %d\n",
                        audio_formats[s->format], i,  nf, f->name, slot_num);
-               s->fc->outbuf = fn->buf;
+               s->fc->outbufp = &fn->buf;
                s->fc->out_loaded = &fn->loaded;
        }
        register_task(&s->fc->task);
@@ -407,7 +422,7 @@ static void open_writers(int slot_num)
        else
                s->wng = wng_new(a->num_writers);
        if (s->fc) {
-               s->wng->buf = s->fc->outbuf;
+               s->wng->bufp = s->fc->outbufp;
                s->wng->loaded = s->fc->out_loaded;
                s->wng->input_error = &s->fc->task.error;
                s->wng->channels = &s->fc->channels;
@@ -415,21 +430,23 @@ static void open_writers(int slot_num)
                s->fc->output_error = &s->wng->task.error;
                PARA_INFO_LOG("samplerate: %d\n", *s->wng->samplerate);
        } else {
-               s->wng->buf = s->receiver_node->buf;
+               s->wng->bufp = &s->receiver_node->buf;
                s->wng->loaded = &s->receiver_node->loaded;
                s->wng->input_error = &s->receiver_node->task.error;
        }
        for (i = 0; i < a->num_writers; i++) {
                s->wng->writer_nodes[i].conf = a->writer_conf[i];
-               s->wng->writer_nodes[i].writer = a->writers[i];
+               s->wng->writer_nodes[i].writer_num = a->writer_nums[i];
        }
        ret = wng_open(s->wng);
-       if (ret < 0) {
-               PARA_ERROR_LOG("%s\n", para_strerror(-ret));
+       if (ret < 0)
                return;
-       }
        s->wstime = *now;
-       activate_inactive_grab_clients(slot_num, s->format, s->fc);
+       s->server_stream_start = stat_task->server_stream_start.tv_sec?
+               stat_task->server_stream_start : *now;
+       s->offset_seconds = stat_task->offset_seconds;
+       s->seconds_total = stat_task->length_seconds;
+       activate_inactive_grab_clients(s->format, s->fc);
 }
 
 static int open_receiver(int format)
@@ -460,6 +477,7 @@ static int open_receiver(int format)
                audio_formats[s->format], a->receiver->name, slot_num);
        rn->task.pre_select = a->receiver->pre_select;
        rn->task.post_select = a->receiver->post_select;
+       s->rstime = *now;
        sprintf(rn->task.status, "%s receiver node", rn->receiver->name);
        register_task(&rn->task);
        ret = 1;
@@ -562,45 +580,31 @@ out:
        return count;
 }
 
-static int check_stat_line(char *line, __a_unused void *data)
+static int update_item(int itemnum, char *buf)
 {
-       int itemnum;
-       size_t ilen = 0;
        long unsigned sec, usec;
-       char *tmp;
 
-       //PARA_INFO_LOG("line: %s\n", line);
-       if (!line)
-               return 1;
-       itemnum = stat_line_valid(line);
-       if (itemnum < 0) {
-               PARA_WARNING_LOG("invalid status line: %s\n", line);
-               return 1;
-       }
        if (stat_task->clock_diff_count && itemnum != SI_CURRENT_TIME)
                return 1;
-       tmp = make_message("%s\n", line);
-       stat_client_write(tmp, itemnum);
-       free(tmp);
        free(stat_item_values[itemnum]);
-       stat_item_values[itemnum] = para_strdup(line);
-       ilen = strlen(status_item_list[itemnum]);
+       stat_item_values[itemnum] = para_strdup(buf);
+       stat_client_write_item(itemnum);
        switch (itemnum) {
        case SI_STATUS_FLAGS:
                stat_task->vss_status = 0;
-               if (strchr(line, 'N'))
+               if (strchr(buf, 'N'))
                        stat_task->vss_status |= VSS_STATUS_FLAG_NEXT;
-               if (strchr(line, 'P'))
+               if (strchr(buf, 'P'))
                        stat_task->vss_status |= VSS_STATUS_FLAG_PLAYING;
                break;
        case SI_OFFSET:
-               stat_task->offset_seconds = atoi(line + ilen + 1);
+               stat_task->offset_seconds = atoi(buf);
                break;
        case SI_SECONDS_TOTAL:
-               stat_task->length_seconds = atoi(line + ilen + 1);
+               stat_task->length_seconds = atoi(buf);
                break;
        case SI_STREAM_START:
-               if (sscanf(line + ilen + 1, "%lu.%lu", &sec, &usec) == 2) {
+               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;
@@ -618,14 +622,14 @@ static int check_stat_line(char *line, __a_unused void *data)
                }
                break;
        case SI_CURRENT_TIME:
-               if (sscanf(line + ilen + 1, "%lu.%lu", &sec, &usec) == 2) {
+               if (sscanf(buf, "%lu.%lu", &sec, &usec) == 2) {
                        struct timeval tv = {sec, usec};
                        compute_time_diff(&tv);
                }
                break;
        case SI_FORMAT:
-               stat_task->current_audio_format_num = get_audio_format_num(
-                       line + ilen + 1);
+               stat_task->current_audio_format_num
+                       = get_audio_format_num(buf);
        }
        return 1;
 }
@@ -673,7 +677,7 @@ static int parse_writer_args(void)
        FOR_EACH_AUDIO_FORMAT(i) {
                a = &afi[i];
                a->writer_conf = para_malloc(nw * sizeof(void *));
-               a->writers = para_malloc(nw * sizeof(struct writer *));
+               a->writer_nums = para_malloc(nw * sizeof(int));
                a->num_writers = 0;
        }
        for (i = 0; i < conf.writer_given; i++) {
@@ -689,7 +693,7 @@ static int parse_writer_args(void)
                        ret = writer_num;
                        goto out;
                }
-               a->writers[nw] = &writers[writer_num];
+               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]);
@@ -899,8 +903,15 @@ static void command_post_select(struct sched *s, struct task *t)
 {
        int ret;
        struct command_task *ct = container_of(t, struct command_task, task);
+       static struct timeval last_status_dump;
+       struct timeval tmp;
+
+       tv_add(&last_status_dump, &(struct timeval){0, 500 * 1000}, &tmp);
+       if (tv_diff(&tmp, now, NULL) < 0) {
+               audiod_status_dump();
+               last_status_dump = *now;
+       }
 
-       audiod_status_dump();
        if (!FD_ISSET(ct->fd, &s->rfds))
                return;
        ret = handle_connect(ct->fd);
@@ -919,20 +930,15 @@ static void init_command_task(struct command_task *ct)
 
 static void close_stat_pipe(void)
 {
-       int i;
-
        if (!stat_task->ct)
                return;
        client_close(stat_task->ct);
        stat_task->ct = NULL;
-       FOR_EACH_STATUS_ITEM(i) {
-               free(stat_item_values[i]);
-               stat_item_values[i] = NULL;
-       }
-       dump_empty_status();
+       clear_and_dump_items();
        stat_task->length_seconds = 0;
        stat_task->offset_seconds = 0;
        stat_task->vss_status = 0;
+       stat_task->current_audio_format_num = -1;
        audiod_status_dump();
 }
 
@@ -1053,7 +1059,7 @@ static void status_pre_select(struct sched *s, struct task *t)
                goto out;
        }
        if (st->ct) {
-               unsigned bytes_left;
+               int ret;
                if (st->ct->task.error < 0) {
                        if (st->ct->task.error != -E_TASK_UNREGISTERED)
                                goto out;
@@ -1062,11 +1068,15 @@ static void status_pre_select(struct sched *s, struct task *t)
                }
                if (st->ct->status != CL_RECEIVING)
                        goto out;
-               bytes_left = for_each_line(st->ct->buf, st->ct->loaded,
-                       &check_stat_line, NULL);
-               if (st->ct->loaded != bytes_left) {
+               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 = bytes_left;
+                       st->ct->loaded = ret;
                } else {
                        struct timeval diff;
                        tv_diff(now, &st->last_status_read, &diff);
@@ -1078,25 +1088,23 @@ static void status_pre_select(struct sched *s, struct task *t)
        if (tv_diff(now, &st->restart_barrier, NULL) < 0)
                goto out;
        if (st->clock_diff_count) { /* get status only one time */
-               char *argv[] = {"audiod", "stat", "1", NULL};
-               int argc = 3;
+               char *argv[] = {"audiod", "--", "stat", "-p", "1", NULL};
+               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);
                set_stat_task_restart_barrier(2);
 
        } else {
-               char *argv[] = {"audiod", "stat", NULL};
-               int argc = 2;
+               char *argv[] = {"audiod", "--", "stat", "-p", NULL};
+               int argc = 4;
                client_open(argc, argv, &st->ct, NULL);
                set_stat_task_restart_barrier(5);
        }
        free(stat_item_values[SI_BASENAME]);
-       stat_item_values[SI_BASENAME] = make_message(
-               "%s: no connection to para_server\n",
-               status_item_list[SI_BASENAME]);
-       stat_client_write(stat_item_values[SI_BASENAME],
-               SI_BASENAME);
+       stat_item_values[SI_BASENAME] = para_strdup(
+               "no connection to para_server");
+       stat_client_write_item(SI_BASENAME);
        st->last_status_read = *now;
 out:
        start_stop_decoders(s);
@@ -1197,9 +1205,12 @@ int main(int argc, char *argv[])
        drop_privileges_or_die(conf.user_arg, conf.group_arg);
        parse_config_or_die();
        init_colors_or_die();
+       init_random_seed_or_die();
        daemon_set_flag(DF_LOG_TIME);
        daemon_set_flag(DF_LOG_HOSTNAME);
        daemon_set_flag(DF_LOG_LL);
+       if (conf.log_timing_given)
+               daemon_set_flag(DF_LOG_TIMING);
        if (conf.logfile_given) {
                daemon_set_logfile(conf.logfile_arg);
                daemon_open_log_or_die();
@@ -1228,7 +1239,7 @@ int main(int argc, char *argv[])
        register_task(&cmd_task->task);
        register_task(&stat_task->task);
        s.default_timeout.tv_sec = 0;
-       s.default_timeout.tv_usec = 99 * 1000;
+       s.default_timeout.tv_usec = 999 * 1000;
        ret = schedule(&s);
 
        PARA_EMERG_LOG("%s\n", para_strerror(-ret));