|
ALSA project - the C library reference
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Data Structures | |
| struct | snd_timer_read_t |
| struct | snd_timer_tread_t |
Macros | |
| #define | SND_TIMER_DLSYM_VERSION _dlsym_timer_001 |
| #define | SND_TIMER_QUERY_DLSYM_VERSION _dlsym_timer_query_001 |
| #define | SND_TIMER_GLOBAL_SYSTEM 0 |
| #define | SND_TIMER_GLOBAL_RTC 1 /* Obsoleted, due to enough legacy. */ |
| #define | SND_TIMER_GLOBAL_HPET 2 |
| #define | SND_TIMER_GLOBAL_HRTIMER 3 |
| #define | SND_TIMER_OPEN_NONBLOCK (1<<0) |
| #define | SND_TIMER_OPEN_TREAD (1<<1) |
| #define | snd_timer_id_alloca(ptr) __snd_alloca(ptr, snd_timer_id) |
| #define | snd_timer_ginfo_alloca(ptr) __snd_alloca(ptr, snd_timer_ginfo) |
| #define | snd_timer_info_alloca(ptr) __snd_alloca(ptr, snd_timer_info) |
| #define | snd_timer_params_alloca(ptr) __snd_alloca(ptr, snd_timer_params) |
| #define | snd_timer_status_alloca(ptr) __snd_alloca(ptr, snd_timer_status) |
Typedefs | |
| typedef struct _snd_timer_id | snd_timer_id_t |
| typedef struct _snd_timer_ginfo | snd_timer_ginfo_t |
| typedef struct _snd_timer_gparams | snd_timer_gparams_t |
| typedef struct _snd_timer_gstatus | snd_timer_gstatus_t |
| typedef struct _snd_timer_info | snd_timer_info_t |
| typedef struct _snd_timer_params | snd_timer_params_t |
| typedef struct _snd_timer_status | snd_timer_status_t |
| typedef struct _snd_timer_query | snd_timer_query_t |
| typedef struct _snd_timer | snd_timer_t |
Enumerations | |
| enum | snd_timer_class_t { SND_TIMER_CLASS_NONE = -1 , SND_TIMER_CLASS_SLAVE = 0 , SND_TIMER_CLASS_GLOBAL , SND_TIMER_CLASS_CARD , SND_TIMER_CLASS_PCM , SND_TIMER_CLASS_LAST = SND_TIMER_CLASS_PCM } |
| enum | snd_timer_slave_class_t { SND_TIMER_SCLASS_NONE = 0 , SND_TIMER_SCLASS_APPLICATION , SND_TIMER_SCLASS_SEQUENCER , SND_TIMER_SCLASS_OSS_SEQUENCER , SND_TIMER_SCLASS_LAST = SND_TIMER_SCLASS_OSS_SEQUENCER } |
| enum | snd_timer_event_t { SND_TIMER_EVENT_RESOLUTION = 0 , SND_TIMER_EVENT_TICK , SND_TIMER_EVENT_START , SND_TIMER_EVENT_STOP , SND_TIMER_EVENT_CONTINUE , SND_TIMER_EVENT_PAUSE , SND_TIMER_EVENT_EARLY , SND_TIMER_EVENT_SUSPEND , SND_TIMER_EVENT_RESUME , SND_TIMER_EVENT_MSTART = SND_TIMER_EVENT_START + 10 , SND_TIMER_EVENT_MSTOP = SND_TIMER_EVENT_STOP + 10 , SND_TIMER_EVENT_MCONTINUE = SND_TIMER_EVENT_CONTINUE + 10 , SND_TIMER_EVENT_MPAUSE = SND_TIMER_EVENT_PAUSE + 10 , SND_TIMER_EVENT_MSUSPEND = SND_TIMER_EVENT_SUSPEND + 10 , SND_TIMER_EVENT_MRESUME = SND_TIMER_EVENT_RESUME + 10 } |
| enum | snd_timer_type_t { SND_TIMER_TYPE_HW = 0 , SND_TIMER_TYPE_SHM , SND_TIMER_TYPE_INET } |
Functions | |
| int | snd_timer_query_open (snd_timer_query_t **handle, const char *name, int mode) |
| Opens a new connection to the timer query interface. | |
| int | snd_timer_query_open_lconf (snd_timer_query_t **handle, const char *name, int mode, snd_config_t *lconf) |
| Opens a new connection to the timer query interface using local configuration. | |
| int | snd_timer_query_close (snd_timer_query_t *handle) |
| close timer query handle | |
| int | snd_timer_query_next_device (snd_timer_query_t *handle, snd_timer_id_t *tid) |
| obtain the next timer identification | |
| int | snd_timer_query_info (snd_timer_query_t *handle, snd_timer_ginfo_t *info) |
| obtain the timer global information | |
| int | snd_timer_query_params (snd_timer_query_t *handle, snd_timer_gparams_t *params) |
| set the timer global parameters | |
| int | snd_timer_query_status (snd_timer_query_t *handle, snd_timer_gstatus_t *status) |
| get the timer global status | |
| int | snd_timer_open (snd_timer_t **handle, const char *name, int mode) |
| Opens a new connection to the timer interface. | |
| int | snd_timer_open_lconf (snd_timer_t **handle, const char *name, int mode, snd_config_t *lconf) |
| Opens a new connection to the timer interface using local configuration. | |
| int | snd_timer_close (snd_timer_t *handle) |
| close timer handle | |
| 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. | |
| snd_timer_t * | snd_async_handler_get_timer (snd_async_handler_t *handler) |
| Return timer handle related to an async handler. | |
| int | snd_timer_poll_descriptors_count (snd_timer_t *handle) |
| get count of poll descriptors for timer handle | |
| int | snd_timer_poll_descriptors (snd_timer_t *handle, struct pollfd *pfds, unsigned int space) |
| get poll descriptors | |
| 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 | |
| int | snd_timer_info (snd_timer_t *handle, snd_timer_info_t *timer) |
| get information about timer handle | |
| int | snd_timer_params (snd_timer_t *handle, snd_timer_params_t *params) |
| set parameters for timer handle | |
| int | snd_timer_status (snd_timer_t *handle, snd_timer_status_t *status) |
| get status from timer handle | |
| int | snd_timer_start (snd_timer_t *handle) |
| start the timer | |
| int | snd_timer_stop (snd_timer_t *handle) |
| stop the timer | |
| int | snd_timer_continue (snd_timer_t *handle) |
| continue the timer | |
| ssize_t | snd_timer_read (snd_timer_t *handle, void *buffer, size_t size) |
| read bytes using timer handle | |
| size_t | snd_timer_id_sizeof (void) |
| get size of the snd_timer_id_t structure in bytes | |
| int | snd_timer_id_malloc (snd_timer_id_t **ptr) |
| allocate a new snd_timer_id_t structure | |
| void | snd_timer_id_free (snd_timer_id_t *obj) |
| frees the snd_timer_id_t structure | |
| void | snd_timer_id_copy (snd_timer_id_t *dst, const snd_timer_id_t *src) |
| copy one snd_timer_id_t structure to another | |
| void | snd_timer_id_set_class (snd_timer_id_t *id, int dev_class) |
| set timer class | |
| int | snd_timer_id_get_class (snd_timer_id_t *id) |
| get timer class | |
| void | snd_timer_id_set_sclass (snd_timer_id_t *id, int dev_sclass) |
| set timer sub-class | |
| int | snd_timer_id_get_sclass (snd_timer_id_t *id) |
| get timer sub-class | |
| void | snd_timer_id_set_card (snd_timer_id_t *id, int card) |
| set timer card | |
| int | snd_timer_id_get_card (snd_timer_id_t *id) |
| get timer card | |
| void | snd_timer_id_set_device (snd_timer_id_t *id, int device) |
| set timer device | |
| int | snd_timer_id_get_device (snd_timer_id_t *id) |
| get timer device | |
| void | snd_timer_id_set_subdevice (snd_timer_id_t *id, int subdevice) |
| set timer subdevice | |
| int | snd_timer_id_get_subdevice (snd_timer_id_t *id) |
| get timer subdevice | |
| size_t | snd_timer_ginfo_sizeof (void) |
| get size of the snd_timer_ginfo_t structure in bytes | |
| int | snd_timer_ginfo_malloc (snd_timer_ginfo_t **ptr) |
| allocate a new snd_timer_ginfo_t structure | |
| void | snd_timer_ginfo_free (snd_timer_ginfo_t *obj) |
| frees the snd_timer_ginfo_t structure | |
| void | snd_timer_ginfo_copy (snd_timer_ginfo_t *dst, const snd_timer_ginfo_t *src) |
| copy one snd_timer_info_t structure to another | |
| int | snd_timer_ginfo_set_tid (snd_timer_ginfo_t *obj, snd_timer_id_t *tid) |
| set timer identification | |
| snd_timer_id_t * | snd_timer_ginfo_get_tid (snd_timer_ginfo_t *obj) |
| get timer identification | |
| unsigned int | snd_timer_ginfo_get_flags (snd_timer_ginfo_t *obj) |
| get timer flags | |
| int | snd_timer_ginfo_get_card (snd_timer_ginfo_t *obj) |
| get associated card with timer | |
| char * | snd_timer_ginfo_get_id (snd_timer_ginfo_t *obj) |
| get timer identification | |
| char * | snd_timer_ginfo_get_name (snd_timer_ginfo_t *obj) |
| get timer name | |
| unsigned long | snd_timer_ginfo_get_resolution (snd_timer_ginfo_t *obj) |
| get timer resolution in ns | |
| unsigned long | snd_timer_ginfo_get_resolution_min (snd_timer_ginfo_t *obj) |
| get timer minimal resolution in ns | |
| unsigned long | snd_timer_ginfo_get_resolution_max (snd_timer_ginfo_t *obj) |
| get timer maximal resolution in ns | |
| unsigned int | snd_timer_ginfo_get_clients (snd_timer_ginfo_t *obj) |
| get current timer clients | |
| size_t | snd_timer_info_sizeof (void) |
| get size of the snd_timer_info_t structure in bytes | |
| int | snd_timer_info_malloc (snd_timer_info_t **ptr) |
| allocate a new snd_timer_info_t structure | |
| void | snd_timer_info_free (snd_timer_info_t *obj) |
| frees the snd_timer_info_t structure | |
| 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 | |
| int | snd_timer_info_is_slave (snd_timer_info_t *info) |
| determine, if timer is slave | |
| int | snd_timer_info_get_card (snd_timer_info_t *info) |
| get timer card | |
| const char * | snd_timer_info_get_id (snd_timer_info_t *info) |
| get timer id | |
| const char * | snd_timer_info_get_name (snd_timer_info_t *info) |
| get timer name | |
| long | snd_timer_info_get_resolution (snd_timer_info_t *info) |
| get timer resolution in us | |
| size_t | snd_timer_params_sizeof (void) |
| get size of the snd_timer_params_t structure in bytes | |
| int | snd_timer_params_malloc (snd_timer_params_t **ptr) |
| allocate a new snd_timer_params_t structure | |
| void | snd_timer_params_free (snd_timer_params_t *obj) |
| frees the snd_timer_params_t structure | |
| 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 | |
| int | snd_timer_params_set_auto_start (snd_timer_params_t *params, int auto_start) |
| set timer auto start | |
| int | snd_timer_params_get_auto_start (snd_timer_params_t *params) |
| determine if timer has auto start flag | |
| int | snd_timer_params_set_exclusive (snd_timer_params_t *params, int exclusive) |
| set timer exclusive use | |
| int | snd_timer_params_get_exclusive (snd_timer_params_t *params) |
| determine if timer has exclusive flag | |
| int | snd_timer_params_set_early_event (snd_timer_params_t *params, int early_event) |
| set timer early event | |
| int | snd_timer_params_get_early_event (snd_timer_params_t *params) |
| determine if timer has early event flag | |
| void | snd_timer_params_set_ticks (snd_timer_params_t *params, long ticks) |
| set timer ticks | |
| long | snd_timer_params_get_ticks (snd_timer_params_t *params) |
| get timer ticks | |
| void | snd_timer_params_set_queue_size (snd_timer_params_t *params, long queue_size) |
| set timer queue size (32-1024) | |
| long | snd_timer_params_get_queue_size (snd_timer_params_t *params) |
| get queue size | |
| void | snd_timer_params_set_filter (snd_timer_params_t *params, unsigned int filter) |
| set timer event filter | |
| unsigned int | snd_timer_params_get_filter (snd_timer_params_t *params) |
| get timer event filter | |
| size_t | snd_timer_status_sizeof (void) |
| get size of the snd_timer_status_t structure in bytes | |
| int | snd_timer_status_malloc (snd_timer_status_t **ptr) |
| allocate a new snd_timer_status_t structure | |
| void | snd_timer_status_free (snd_timer_status_t *obj) |
| frees the snd_timer_status_t structure | |
| 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 | |
| snd_htimestamp_t | snd_timer_status_get_timestamp (snd_timer_status_t *status) |
| get timestamp | |
| long | snd_timer_status_get_resolution (snd_timer_status_t *status) |
| get resolution in us | |
| long | snd_timer_status_get_lost (snd_timer_status_t *status) |
| get master tick lost count | |
| long | snd_timer_status_get_overrun (snd_timer_status_t *status) |
| get overrun count | |
| long | snd_timer_status_get_queue (snd_timer_status_t *status) |
| get count of used queue elements | |
| long | snd_timer_info_get_ticks (snd_timer_info_t *info) |
| (DEPRECATED) get maximum timer ticks | |
Timer Interface. See Timer interface page for more details.
| #define SND_TIMER_DLSYM_VERSION _dlsym_timer_001 |
dlsym version for interface entry callback
| #define snd_timer_ginfo_alloca | ( | ptr | ) | __snd_alloca(ptr, snd_timer_ginfo) |
allocate snd_timer_ginfo_t container on stack
| #define SND_TIMER_GLOBAL_HPET 2 |
global timer - HPET
| #define SND_TIMER_GLOBAL_HRTIMER 3 |
global timer - HRTIMER
| #define SND_TIMER_GLOBAL_RTC 1 /* Obsoleted, due to enough legacy. */ |
global timer - RTC
| #define SND_TIMER_GLOBAL_SYSTEM 0 |
global timer - system
| #define snd_timer_id_alloca | ( | ptr | ) | __snd_alloca(ptr, snd_timer_id) |
allocate snd_timer_id_t container on stack
| #define snd_timer_info_alloca | ( | ptr | ) | __snd_alloca(ptr, snd_timer_info) |
allocate snd_timer_info_t container on stack
| #define SND_TIMER_OPEN_NONBLOCK (1<<0) |
timer open mode flag - non-blocking behaviour
| #define SND_TIMER_OPEN_TREAD (1<<1) |
use timestamps and event notification - enhanced read
| #define snd_timer_params_alloca | ( | ptr | ) | __snd_alloca(ptr, snd_timer_params) |
allocate snd_timer_params_t container on stack
| #define SND_TIMER_QUERY_DLSYM_VERSION _dlsym_timer_query_001 |
dlsym version for interface entry callback
| #define snd_timer_status_alloca | ( | ptr | ) | __snd_alloca(ptr, snd_timer_status) |
allocate snd_timer_status_t container on stack
| typedef struct _snd_timer_ginfo snd_timer_ginfo_t |
timer global info structure
| typedef struct _snd_timer_gparams snd_timer_gparams_t |
timer global params structure
| typedef struct _snd_timer_gstatus snd_timer_gstatus_t |
timer global status structure
| typedef struct _snd_timer_id snd_timer_id_t |
timer identification structure
| typedef struct _snd_timer_info snd_timer_info_t |
timer info structure
| typedef struct _snd_timer_params snd_timer_params_t |
timer params structure
| typedef struct _snd_timer_query snd_timer_query_t |
timer query handle
| typedef struct _snd_timer_status snd_timer_status_t |
timer status structure
| typedef struct _snd_timer snd_timer_t |
timer handle
| enum snd_timer_class_t |
| enum snd_timer_event_t |
timer read event identification
| enum snd_timer_type_t |
| 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.
| handler | Returned handler handle |
| timer | timer handle |
| callback | Callback function |
| private_data | Callback private data |
The asynchronous callback is called when new timer event occurs.
| snd_timer_t * snd_async_handler_get_timer | ( | snd_async_handler_t * | handler | ) |
Return timer handle related to an async handler.
| handler | Async handler handle |
| int snd_timer_close | ( | snd_timer_t * | timer | ) |
close timer handle
| timer | timer handle |
Closes the specified timer handle and frees all associated resources.
| int snd_timer_continue | ( | snd_timer_t * | timer | ) |
continue the timer
| timer | timer handle |
| void snd_timer_ginfo_copy | ( | snd_timer_ginfo_t * | dst, |
| const snd_timer_ginfo_t * | src ) |
copy one snd_timer_info_t structure to another
| dst | destination snd_timer_info_t structure |
| src | source snd_timer_info_t structure |
| void snd_timer_ginfo_free | ( | snd_timer_ginfo_t * | info | ) |
frees the snd_timer_ginfo_t structure
| info | pointer to the snd_timer_ginfo_t structure to free |
Frees the given snd_timer_info_t structure using the standard free C library function.
| int snd_timer_ginfo_get_card | ( | snd_timer_ginfo_t * | obj | ) |
get associated card with timer
| obj | pointer to snd_timer_ginfo_t structure |
| unsigned int snd_timer_ginfo_get_clients | ( | snd_timer_ginfo_t * | obj | ) |
get current timer clients
| obj | pointer to snd_timer_ginfo_t structure |
| unsigned int snd_timer_ginfo_get_flags | ( | snd_timer_ginfo_t * | obj | ) |
| char * snd_timer_ginfo_get_id | ( | snd_timer_ginfo_t * | obj | ) |
get timer identification
| obj | pointer to snd_timer_ginfo_t structure |
| char * snd_timer_ginfo_get_name | ( | snd_timer_ginfo_t * | obj | ) |
| unsigned long snd_timer_ginfo_get_resolution | ( | snd_timer_ginfo_t * | obj | ) |
get timer resolution in ns
| obj | pointer to snd_timer_ginfo_t structure |
| unsigned long snd_timer_ginfo_get_resolution_max | ( | snd_timer_ginfo_t * | obj | ) |
get timer maximal resolution in ns
| obj | pointer to snd_timer_ginfo_t structure |
| unsigned long snd_timer_ginfo_get_resolution_min | ( | snd_timer_ginfo_t * | obj | ) |
get timer minimal resolution in ns
| obj | pointer to snd_timer_ginfo_t structure |
| snd_timer_id_t * snd_timer_ginfo_get_tid | ( | snd_timer_ginfo_t * | obj | ) |
get timer identification
| obj | pointer to snd_timer_ginfo_t structure |
| int snd_timer_ginfo_malloc | ( | snd_timer_ginfo_t ** | info | ) |
allocate a new snd_timer_ginfo_t structure
| info | returned pointer |
Allocates a new snd_timer_info_t structure using the standard malloc C library function.
| int snd_timer_ginfo_set_tid | ( | snd_timer_ginfo_t * | obj, |
| snd_timer_id_t * | tid ) |
set timer identification
| obj | pointer to snd_timer_ginfo_t structure |
| tid | pointer to snd_timer_id_t structure |
| size_t snd_timer_ginfo_sizeof | ( | void | ) |
get size of the snd_timer_ginfo_t structure in bytes
| void snd_timer_id_copy | ( | snd_timer_id_t * | dst, |
| const snd_timer_id_t * | src ) |
copy one snd_timer_id_t structure to another
| dst | destination snd_timer_id_t structure |
| src | source snd_timer_id_t structure |
| void snd_timer_id_free | ( | snd_timer_id_t * | info | ) |
frees the snd_timer_id_t structure
| info | pointer to the snd_timer_id_t structure to free |
Frees the given snd_timer_id_t structure using the standard free C library function.
| int snd_timer_id_get_card | ( | snd_timer_id_t * | tid | ) |
get timer card
| tid | pointer to snd_timer_id_t structure |
| int snd_timer_id_get_class | ( | snd_timer_id_t * | tid | ) |
get timer class
| tid | pointer to snd_timer_id_t structure |
| int snd_timer_id_get_device | ( | snd_timer_id_t * | tid | ) |
get timer device
| tid | pointer to snd_timer_id_t structure |
| int snd_timer_id_get_sclass | ( | snd_timer_id_t * | tid | ) |
get timer sub-class
| tid | pointer to snd_timer_id_t structure |
| int snd_timer_id_get_subdevice | ( | snd_timer_id_t * | tid | ) |
get timer subdevice
| tid | pointer to snd_timer_id_t structure |
| int snd_timer_id_malloc | ( | snd_timer_id_t ** | info | ) |
allocate a new snd_timer_id_t structure
| info | returned pointer |
Allocates a new snd_timer_id_t structure using the standard malloc C library function.
| void snd_timer_id_set_card | ( | snd_timer_id_t * | tid, |
| int | card ) |
set timer card
| tid | pointer to snd_timer_id_t structure |
| card | card number |
| void snd_timer_id_set_class | ( | snd_timer_id_t * | tid, |
| int | dev_class ) |
set timer class
| tid | pointer to snd_timer_id_t structure |
| dev_class | class of timer device |
| void snd_timer_id_set_device | ( | snd_timer_id_t * | tid, |
| int | device ) |
set timer device
| tid | pointer to snd_timer_id_t structure |
| device | device number |
| void snd_timer_id_set_sclass | ( | snd_timer_id_t * | tid, |
| int | dev_sclass ) |
set timer sub-class
| tid | pointer to snd_timer_id_t structure |
| dev_sclass | sub-class of timer device |
| void snd_timer_id_set_subdevice | ( | snd_timer_id_t * | tid, |
| int | subdevice ) |
set timer subdevice
| tid | pointer to snd_timer_id_t structure |
| subdevice | subdevice number |
| size_t snd_timer_id_sizeof | ( | void | ) |
get size of the snd_timer_id_t structure in bytes
| int snd_timer_info | ( | snd_timer_t * | timer, |
| snd_timer_info_t * | info ) |
get information about timer handle
| timer | timer handle |
| info | pointer to a snd_timer_info_t structure to be filled |
| 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
| dst | destination snd_timer_info_t structure |
| src | source snd_timer_info_t structure |
| void snd_timer_info_free | ( | snd_timer_info_t * | info | ) |
frees the snd_timer_info_t structure
| info | pointer to the snd_timer_info_t structure to free |
Frees the given snd_timer_info_t structure using the standard free C library function.
| int snd_timer_info_get_card | ( | snd_timer_info_t * | info | ) |
get timer card
| info | pointer to snd_timer_info_t structure |
| const char * snd_timer_info_get_id | ( | snd_timer_info_t * | info | ) |
get timer id
| info | pointer to snd_timer_info_t structure |
| const char * snd_timer_info_get_name | ( | snd_timer_info_t * | info | ) |
get timer name
| info | pointer to snd_timer_info_t structure |
| long snd_timer_info_get_resolution | ( | snd_timer_info_t * | info | ) |
get timer resolution in us
| info | pointer to snd_timer_info_t structure |
| long snd_timer_info_get_ticks | ( | snd_timer_info_t * | info | ) |
(DEPRECATED) get maximum timer ticks
| info | pointer to snd_timer_info_t structure |
| int snd_timer_info_is_slave | ( | snd_timer_info_t * | info | ) |
determine, if timer is slave
| info | pointer to snd_timer_info_t structure |
| int snd_timer_info_malloc | ( | snd_timer_info_t ** | info | ) |
allocate a new snd_timer_info_t structure
| info | returned pointer |
Allocates a new snd_timer_info_t structure using the standard malloc C library function.
| size_t snd_timer_info_sizeof | ( | void | ) |
get size of the snd_timer_info_t structure in bytes
| int snd_timer_open | ( | snd_timer_t ** | timer, |
| const char * | name, | ||
| int | mode ) |
Opens a new connection to the timer interface.
| timer | Returned handle (NULL if not wanted) |
| name | ASCII identifier of the timer handle |
| mode | Open mode |
Opens a new connection to the timer interface specified with an ASCII identifier and mode.
| 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.
| timer | Returned handle (NULL if not wanted) |
| name | ASCII identifier of the timer handle |
| mode | Open mode |
| lconf | Local configuration |
Opens a new connection to the timer interface specified with an ASCII identifier and mode.
| int snd_timer_params | ( | snd_timer_t * | timer, |
| snd_timer_params_t * | params ) |
set parameters for timer handle
| timer | timer handle |
| params | pointer to a snd_timer_params_t structure |
| 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
| dst | destination snd_timer_params_t structure |
| src | source snd_timer_params_t structure |
| void snd_timer_params_free | ( | snd_timer_params_t * | params | ) |
frees the snd_timer_params_t structure
| params | pointer to the snd_timer_params_t structure to free |
Frees the given snd_timer_params_t structure using the standard free C library function.
| int snd_timer_params_get_auto_start | ( | snd_timer_params_t * | params | ) |
determine if timer has auto start flag
| params | pointer to snd_timer_params_t structure |
| int snd_timer_params_get_early_event | ( | snd_timer_params_t * | params | ) |
determine if timer has early event flag
| params | pointer to snd_timer_params_t structure |
| int snd_timer_params_get_exclusive | ( | snd_timer_params_t * | params | ) |
determine if timer has exclusive flag
| params | pointer to snd_timer_params_t structure |
| unsigned int snd_timer_params_get_filter | ( | snd_timer_params_t * | params | ) |
get timer event filter
| params | pointer to snd_timer_params_t structure |
| long snd_timer_params_get_queue_size | ( | snd_timer_params_t * | params | ) |
| long snd_timer_params_get_ticks | ( | snd_timer_params_t * | params | ) |
get timer ticks
| params | pointer to snd_timer_params_t structure |
| int snd_timer_params_malloc | ( | snd_timer_params_t ** | params | ) |
allocate a new snd_timer_params_t structure
| params | returned pointer |
Allocates a new snd_timer_params_t structure using the standard malloc C library function.
| int snd_timer_params_set_auto_start | ( | snd_timer_params_t * | params, |
| int | auto_start ) |
set timer auto start
| params | pointer to snd_timer_params_t structure |
| auto_start | The boolean value to set |
| int snd_timer_params_set_early_event | ( | snd_timer_params_t * | params, |
| int | early_event ) |
set timer early event
| params | pointer to snd_timer_params_t structure |
| early_event | The boolean value to set |
| int snd_timer_params_set_exclusive | ( | snd_timer_params_t * | params, |
| int | exclusive ) |
set timer exclusive use
| params | pointer to snd_timer_params_t structure |
| exclusive | The boolean value to set |
| void snd_timer_params_set_filter | ( | snd_timer_params_t * | params, |
| unsigned int | filter ) |
set timer event filter
| params | pointer to snd_timer_params_t structure |
| filter | The event filter bits to set |
| void snd_timer_params_set_queue_size | ( | snd_timer_params_t * | params, |
| long | queue_size ) |
set timer queue size (32-1024)
| params | pointer to snd_timer_params_t structure |
| queue_size | The queue size to set |
| void snd_timer_params_set_ticks | ( | snd_timer_params_t * | params, |
| long | ticks ) |
set timer ticks
| params | pointer to snd_timer_params_t structure |
| ticks | Ticks to set |
| size_t snd_timer_params_sizeof | ( | void | ) |
get size of the snd_timer_params_t structure in bytes
| int snd_timer_poll_descriptors | ( | snd_timer_t * | timer, |
| struct pollfd * | pfds, | ||
| unsigned int | space ) |
get poll descriptors
| timer | timer handle |
| pfds | array of poll descriptors |
| space | space in the poll descriptor array |
| int snd_timer_poll_descriptors_count | ( | snd_timer_t * | timer | ) |
get count of poll descriptors for timer handle
| timer | timer handle |
| 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
| timer | timer handle |
| pfds | array of poll descriptors |
| nfds | count of poll descriptors |
| revents | returned events |
| int snd_timer_query_close | ( | snd_timer_query_t * | timer | ) |
close timer query handle
| timer | timer handle |
Closes the specified timer handle and frees all associated resources.
| int snd_timer_query_info | ( | snd_timer_query_t * | timer, |
| snd_timer_ginfo_t * | info ) |
obtain the timer global information
| timer | timer handle |
| info | timer information |
| int snd_timer_query_next_device | ( | snd_timer_query_t * | timer, |
| snd_timer_id_t * | tid ) |
obtain the next timer identification
| timer | timer handle |
| tid | timer identification |
if tid->dev_class is -1, then the first device is returned if result tid->dev_class is -1, no more devices are left
| int snd_timer_query_open | ( | snd_timer_query_t ** | timer, |
| const char * | name, | ||
| int | mode ) |
Opens a new connection to the timer query interface.
| timer | Returned handle (NULL if not wanted) |
| name | ASCII identifier of the RawMidi handle |
| mode | Open mode |
Opens a new connection to the RawMidi interface specified with an ASCII identifier and mode.
| int snd_timer_query_open_lconf | ( | snd_timer_query_t ** | timer, |
| const char * | name, | ||
| int | mode, | ||
| snd_config_t * | lconf ) |
Opens a new connection to the timer query interface using local configuration.
| timer | Returned handle (NULL if not wanted) |
| name | ASCII identifier of the RawMidi handle |
| mode | Open mode |
| lconf | Local configuration |
Opens a new connection to the RawMidi interface specified with an ASCII identifier and mode.
| int snd_timer_query_params | ( | snd_timer_query_t * | timer, |
| snd_timer_gparams_t * | params ) |
set the timer global parameters
| timer | timer handle |
| params | timer parameters |
| int snd_timer_query_status | ( | snd_timer_query_t * | timer, |
| snd_timer_gstatus_t * | status ) |
get the timer global status
| timer | timer handle |
| status | timer status |
| ssize_t snd_timer_read | ( | snd_timer_t * | timer, |
| void * | buffer, | ||
| size_t | size ) |
read bytes using timer handle
| timer | timer handle |
| buffer | buffer to store the input bytes |
| size | input buffer size in bytes |
| int snd_timer_start | ( | snd_timer_t * | timer | ) |
start the timer
| timer | timer handle |
| int snd_timer_status | ( | snd_timer_t * | timer, |
| snd_timer_status_t * | status ) |
get status from timer handle
| timer | timer handle |
| status | pointer to a snd_timer_status_t structure to be filled |
| 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
| dst | destination snd_timer_status_t structure |
| src | source snd_timer_status_t structure |
| void snd_timer_status_free | ( | snd_timer_status_t * | status | ) |
frees the snd_timer_status_t structure
| status | pointer to the snd_timer_status_t structure to free |
Frees the given snd_timer_status_t structure using the standard free C library function.
| long snd_timer_status_get_lost | ( | snd_timer_status_t * | status | ) |
get master tick lost count
| status | pointer to snd_timer_status_t structure |
| long snd_timer_status_get_overrun | ( | snd_timer_status_t * | status | ) |
get overrun count
| status | pointer to snd_timer_status_t structure |
| long snd_timer_status_get_queue | ( | snd_timer_status_t * | status | ) |
get count of used queue elements
| status | pointer to snd_timer_status_t structure |
| long snd_timer_status_get_resolution | ( | snd_timer_status_t * | status | ) |
get resolution in us
| status | pointer to snd_timer_status_t structure |
| snd_htimestamp_t snd_timer_status_get_timestamp | ( | snd_timer_status_t * | status | ) |
| int snd_timer_status_malloc | ( | snd_timer_status_t ** | status | ) |
allocate a new snd_timer_status_t structure
| status | returned pointer |
Allocates a new snd_timer_status_t structure using the standard malloc C library function.
| size_t snd_timer_status_sizeof | ( | void | ) |
get size of the snd_timer_status_t structure in bytes
| int snd_timer_stop | ( | snd_timer_t * | timer | ) |
stop the timer
| timer | timer handle |