Jack2  1.9.10
Functions
The non-callback API

Functions

jack_nframes_t jack_thread_wait (jack_client_t *client, int status) JACK_OPTIONAL_WEAK_EXPORT
 
jack_nframes_t jack_cycle_wait (jack_client_t *client) JACK_OPTIONAL_WEAK_EXPORT
 
void jack_cycle_signal (jack_client_t *client, int status) JACK_OPTIONAL_WEAK_EXPORT
 
int jack_set_process_thread (jack_client_t *client, JackThreadCallback thread_callback, void *arg) JACK_OPTIONAL_WEAK_EXPORT
 

Detailed Description

Function Documentation

jack_nframes_t jack_thread_wait ( jack_client_t *  client,
int  status 
)

THIS FUNCTION IS DEPRECATED AND SHOULD NOT BE USED IN NEW JACK CLIENTS.

Deprecated:
Please use jack_cycle_wait() and jack_cycle_signal() functions.
jack_nframes_t jack_cycle_wait ( jack_client_t *  client)

Wait until this JACK client should process data.

Parameters
client- pointer to a JACK client structure
Returns
the number of frames of data to process
void jack_cycle_signal ( jack_client_t *  client,
int  status 
)

Signal next clients in the graph.

Parameters
client- pointer to a JACK client structure
status- if non-zero, calling thread should exit
int jack_set_process_thread ( jack_client_t *  client,
JackThreadCallback  thread_callback,
void *  arg 
)

Tell the Jack server to call thread_callback in the RT thread. Typical use are in conjunction with jack_cycle_wait and jack_cycle_signal functions. The code in the supplied function must be suitable for real-time execution. That means that it cannot call functions that might block for a long time. This includes malloc, free, printf, pthread_mutex_lock, sleep, wait, poll, select, pthread_join, pthread_cond_wait, etc, etc. See http://jackit.sourceforge.net/docs/design/design.html#SECTION00411000000000000000 for more information.

NOTE: this function cannot be called while the client is activated (after jack_activate has been called.)

Returns
0 on success, otherwise a non-zero error code.

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