-/** \file audiod.h symbols exported from audiod.c */
-int num_filters(int audio_format_num);
-int get_audio_format_num(char *name);
+/*
+ * Copyright (C) 2006-2012 Andre Noll <maan@systemlinux.org>
+ *
+ * Licensed under the GPL v2. For licencing details see COPYING.
+ */
+
+/** \file audiod.h Symbols exported from audiod.c. */
+
/** enum of audio formats supported by para_audiod */
enum {AUDIOD_AUDIO_FORMATS_ENUM};
* - off: disconnect from para_server
* - on: receive status information from para_server and play the audio stream
* - sb: only receive status information but not the audio stream
-*/
-enum {AUDIOD_OFF, AUDIOD_ON, AUDIOD_STANDBY};
-
-/**
- * describes one instance of a receiver-filter-writer chain
- *
- * \sa receier_node, receiver, filter, filter_node, filter_chain, writer,
- * writer_node, writer_node_group.
- */
-struct slot_info {
- /** number of the audio format in this slot */
- int format;
- /** writer start time */
- struct timeval wstime;
- /** the receiver info associated with this slot */
- struct receiver_node *receiver_node;
- /** the active filter chain */
- struct filter_chain *fc;
- /** the active writer node group */
- struct writer_node_group *wng;
-};
-
-/**
- * the main task of audiod
- *
- * \sa struct task, struct sched
*/
-struct audiod_task {
- struct timeval *now;
- struct task task;
+enum audiod_status_info {AUDIOD_OFF, AUDIOD_ON, AUDIOD_STANDBY};
+
+/** defines one command of para_audiod */
+struct audiod_command {
+ /** the name of the command */
+ const char *name;
+ /** pointer to the function that handles the command */
+ int (*handler)(int, int, char**);
+ /** one-line description of the command */
+ const char *description;
+ /** summary of the command line options */
+ const char *usage;
+ /** the long help text */
+ const char *help;
};
/**
- * the task for obtaining para_server's status (para_client stat)
+ * Describes one instance of a receiver-filter-writer chain.
*
- * \sa struct task, struct sched
+ * \sa receiver_node, receiver, filter, filter_node, writer, writer_node,
+ * writer_node_group.
*/
-struct status_task {
- /** the associated task structure of audiod */
- struct task task;
- /** client data associated with the stat task */
- struct private_client_data *pcd;
- /** the array of status items sent by para_server */
- char *stat_item_values[NUM_STAT_ITEMS];
- /** do not restart client command until this time */
- struct timeval restart_barrier;
- /** last time we received status data from para_server */
- struct timeval last_status_read;
- /** the offset value announced by para_server */
- int offset_seconds;
- /** the length of the current audio file as announced by para_server */
- int length_seconds;
- /** the start of the current stream from the view of para_server */
+struct slot_info {
+ /** Number of the audio format in this slot. */
+ int format;
+ /** The stream_start status item announced by para_server. */
struct timeval server_stream_start;
- /** the average time deviation between para_server and para_audiod */
- struct timeval sa_time_diff;
- /** whether client time is ahead of server time */
- int sa_time_diff_sign;
- /** non-zero if para_server's status is "playing" */
- int playing;
- /** number of times the clock difference is to be checked */
- unsigned clock_diff_count;
- /** when to start the next check for clock difference */
- struct timeval clock_diff_barrier;
+ /** The offset status item announced by para_server. */
+ unsigned offset_seconds;
+ /** The seconds_total status item announced by para_server. */
+ unsigned seconds_total;
+ /** The receiver info associated with this slot. */
+ struct receiver_node *receiver_node;
+ /** The array of filter nodes. */
+ struct filter_node *fns;
+ /** The array of writers attached to the last filter. */
+ struct writer_node *wns;
};
-extern struct status_task *stat_task;
extern struct slot_info slot[MAX_STREAM_SLOTS];
extern struct audiod_args_info conf;
extern int audiod_status;
-extern const char *status_item_list[NUM_STAT_ITEMS];
void __noreturn clean_exit(int status, const char *msg);
-int handle_connect(int accept_fd);
+int handle_connect(int accept_fd, fd_set *rfds);
void audiod_status_dump(void);
-void dump_empty_status(void);
+char *get_time_string(int slot_num);
+struct btr_node *audiod_get_btr_root(void);
+
+void stat_client_write_item(int item_num);
+void clear_and_dump_items(void);
/** iterate over all slots */
#define FOR_EACH_SLOT(_slot) for (_slot = 0; _slot < MAX_STREAM_SLOTS; _slot++)