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ALSA project - the C library reference
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ALSA project - the C library reference
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Timer Interface. More...
Functions | |
| int | snd_timer_open (snd_timer_t **timer, const char *name, int mode) |
| Opens a new connection to the timer interface. More... | |
| int | snd_timer_open_lconf (snd_timer_t **timer, const char *name, int mode, snd_config_t *lconf) |
| Opens a new connection to the timer interface using local configuration. More... | |
| int | snd_timer_close (snd_timer_t *timer) |
| close timer handle More... | |
| const char * | snd_timer_name (snd_timer_t *timer) |
| get identifier of timer handle More... | |
| snd_timer_type_t | snd_timer_type (snd_timer_t *timer) |
| get type of timer handle More... | |
| int | snd_async_add_timer_handler (snd_async_handler_t **handler, snd_timer_t *timer, snd_async_callback_t callback, void *private_data) |
| Add an async handler for a timer. More... | |
| snd_timer_t * | snd_async_handler_get_timer (snd_async_handler_t *handler) |
| Return timer handle related to an async handler. More... | |
| int | snd_timer_poll_descriptors_count (snd_timer_t *timer) |
| get count of poll descriptors for timer handle More... | |
| int | snd_timer_poll_descriptors (snd_timer_t *timer, struct pollfd *pfds, unsigned int space) |
| get poll descriptors More... | |
| int | snd_timer_poll_descriptors_revents (snd_timer_t *timer, struct pollfd *pfds, unsigned int nfds, unsigned short *revents) |
| get returned events from poll descriptors More... | |
| int | snd_timer_nonblock (snd_timer_t *timer, int nonblock) |
| set nonblock mode More... | |
| size_t | snd_timer_info_sizeof () |
| get size of the snd_timer_info_t structure in bytes More... | |
| int | snd_timer_info_malloc (snd_timer_info_t **info) |
| allocate a new snd_timer_info_t structure More... | |
| void | snd_timer_info_free (snd_timer_info_t *info) |
| frees the snd_timer_info_t structure More... | |
| void | snd_timer_info_copy (snd_timer_info_t *dst, const snd_timer_info_t *src) |
| copy one snd_timer_info_t structure to another More... | |
| int | snd_timer_info_is_slave (snd_timer_info_t *info) |
| determine, if timer is slave More... | |
| int | snd_timer_info_get_card (snd_timer_info_t *info) |
| get timer card More... | |
| const char * | snd_timer_info_get_id (snd_timer_info_t *info) |
| get timer id More... | |
| const char * | snd_timer_info_get_name (snd_timer_info_t *info) |
| get timer name More... | |
| long | snd_timer_info_get_resolution (snd_timer_info_t *info) |
| get timer resolution in us More... | |
| int | snd_timer_info (snd_timer_t *timer, snd_timer_info_t *info) |
| get information about timer handle More... | |
| size_t | snd_timer_params_sizeof () |
| get size of the snd_timer_params_t structure in bytes More... | |
| int | snd_timer_params_malloc (snd_timer_params_t **params) |
| allocate a new snd_timer_params_t structure More... | |
| void | snd_timer_params_free (snd_timer_params_t *params) |
| frees the snd_timer_params_t structure More... | |
| void | snd_timer_params_copy (snd_timer_params_t *dst, const snd_timer_params_t *src) |
| copy one snd_timer_params_t structure to another More... | |
| int | snd_timer_params_set_auto_start (snd_timer_params_t *params, int auto_start) |
| set timer auto start More... | |
| int | snd_timer_params_get_auto_start (snd_timer_params_t *params) |
| determine if timer has auto start flag More... | |
| int | snd_timer_params_set_exclusive (snd_timer_params_t *params, int exclusive) |
| set timer exclusive use More... | |
| int | snd_timer_params_get_exclusive (snd_timer_params_t *params) |
| determine if timer has exclusive flag More... | |
| int | snd_timer_params_set_early_event (snd_timer_params_t *params, int early_event) |
| set timer early event More... | |
| int | snd_timer_params_get_early_event (snd_timer_params_t *params) |
| determine if timer has early event flag More... | |
| void | snd_timer_params_set_ticks (snd_timer_params_t *params, long ticks) |
| set timer ticks More... | |
| long | snd_timer_params_get_ticks (snd_timer_params_t *params) |
| get timer ticks More... | |
| void | snd_timer_params_set_queue_size (snd_timer_params_t *params, long queue_size) |
| set timer queue size (32-1024) More... | |
| long | snd_timer_params_get_queue_size (snd_timer_params_t *params) |
| get queue size More... | |
| void | snd_timer_params_set_filter (snd_timer_params_t *params, unsigned int filter) |
| set timer event filter More... | |
| unsigned int | snd_timer_params_get_filter (snd_timer_params_t *params) |
| get timer event filter More... | |
| int | snd_timer_params (snd_timer_t *timer, snd_timer_params_t *params) |
| set parameters for timer handle More... | |
| size_t | snd_timer_status_sizeof () |
| get size of the snd_timer_status_t structure in bytes More... | |
| int | snd_timer_status_malloc (snd_timer_status_t **status) |
| allocate a new snd_timer_status_t structure More... | |
| void | snd_timer_status_free (snd_timer_status_t *status) |
| frees the snd_timer_status_t structure More... | |
| void | snd_timer_status_copy (snd_timer_status_t *dst, const snd_timer_status_t *src) |
| copy one snd_timer_status_t structure to another More... | |
| snd_htimestamp_t | snd_timer_status_get_timestamp (snd_timer_status_t *status) |
| get timestamp More... | |
| long | snd_timer_status_get_resolution (snd_timer_status_t *status) |
| get resolution in us More... | |
| long | snd_timer_status_get_lost (snd_timer_status_t *status) |
| get master tick lost count More... | |
| long | snd_timer_status_get_overrun (snd_timer_status_t *status) |
| get overrun count More... | |
| long | snd_timer_status_get_queue (snd_timer_status_t *status) |
| get count of used queue elements More... | |
| int | snd_timer_status (snd_timer_t *timer, snd_timer_status_t *status) |
| get status from timer handle More... | |
| int | snd_timer_start (snd_timer_t *timer) |
| start the timer More... | |
| int | snd_timer_stop (snd_timer_t *timer) |
| stop the timer More... | |
| int | snd_timer_continue (snd_timer_t *timer) |
| continue the timer More... | |
| ssize_t | snd_timer_read (snd_timer_t *timer, void *buffer, size_t size) |
| read bytes using timer handle More... | |
| long | snd_timer_info_get_ticks (snd_timer_info_t *info) |
| (DEPRECATED) get maximum timer ticks More... | |
Timer Interface.
Timer Interface is designed to access timers. See Timer interface page for more details.
| const char* snd_timer_name | ( | snd_timer_t * | timer | ) |
get identifier of timer handle
| timer | a timer handle |
Returns the ASCII identifier of given timer handle. It's the same identifier specified in snd_timer_open().
| int snd_timer_nonblock | ( | snd_timer_t * | timer, |
| int | nonblock | ||
| ) |
set nonblock mode
| timer | timer handle |
| nonblock | 0 = block, 1 = nonblock mode |
| snd_timer_type_t snd_timer_type | ( | snd_timer_t * | timer | ) |
get type of timer handle
| timer | a timer handle |
Returns the type snd_timer_type_t of given timer handle.
1.8.7
