#include <jack/jack.h>
#include <string.h>
#include <stdio.h>

jack_port_t* port_in;
jack_port_t* port_out;

jack_port_t* port_B_out;

int process_A_rt(jack_nframes_t nframes, void* arg){
    jack_default_audio_sample_t* in_buffer = jack_port_get_buffer(port_in, nframes);
    jack_default_audio_sample_t* out_buffer = jack_port_get_buffer(port_out, nframes);

    memcpy(out_buffer, in_buffer, sizeof(jack_default_audio_sample_t)*nframes);
}

int process_B_rt(jack_nframes_t nframes, void* arg){
    jack_default_audio_sample_t* out_B_buffer = jack_port_get_buffer(port_B_out, nframes);
    //do something with the buffer
    memset(out_B_buffer, '\0', sizeof(jack_default_audio_sample_t)*nframes);
}

int main(){
    jack_options_t options  = JackNullOption;
    jack_status_t status_A = 0;
    //----------------------------------------------------------------------------------------------------
    //first client
    jack_client_t* client = jack_client_open("test_A", options &status_A, NULL);
    port_in = jack_port_register(client, "a_in", JACK_DEFAULT_AUDIO_TYPE, 1, 0);
    port_out = jack_port_register(client, "a_out", JACK_DEFAULT_AUDIO_TYPE, 2, 0);
    jack_set_process_callback(client, process_A_rt, NULL);

    //----------------------------------------------------------------------------------------------------
    //second client
    jack_options_t options_B  = JackNullOption;
    jack_status_t status_B = 0;    
    jack_client_t* client_B = jack_client_open("test_B", options_B &status_B, NULL);
    port_B_out = jack_port_register(client_B, "b_out", JACK_DEFAULT_AUDIO_TYPE, 2, 0);
    jack_set_process_callback(client_B, process_B_rt, NULL);


    //activate the clients
    jack_activate(client);
    jack_activate(client_B);
    
    while(1){
	char q;
	scanf("%c", &q);
	if(q=='q'){
	    break;
	}
    }

    jack_client_close(client);
    jack_client_close(client_B);
    
    
    return 0;
}