int main(int argc, char** argv) {
cbuf *cb1 = cbuf_alloc();
// make sure the cbuf grows and shrinks appropriately
int capacity = cbuf_capacity(cb1);
check(capacity > 0, "Initial capacity > 0");
check(cbuf_size(cb1) == 0, "Initial size == 0");
for(int i = 0; i < capacity; i++) {
cbuf_update(cb1, 60, 1.291);
}
check(cbuf_size(cb1) == cbuf_capacity(cb1), "Size is allowed to grow to capacity");
cbuf_update(cb1, 60, 1.291);
// inserting one more than what the original structure could contain
int new_capacity = cbuf_capacity(cb1);
check(new_capacity > capacity, "Capacity grows when necessary");
// inserting an update that's > 5 minutes older than all of the data
// in the structure
cbuf_update(cb1, 60 + 6 * 60, 1.291);
check(cbuf_capacity(cb1) < new_capacity, "Capacity shrinks when able");
check(cbuf_size(cb1) == 1, "Aged out records are removed correctly");
cbuf_free(cb1);
return 0;
}
static void aud_ftm_play_tone( void * pCtxt )
{
int32 size, capacity;
Aud_FTM_DrvCtxt_T * pDrvCtxt = (Aud_FTM_DrvCtxt_T *)pCtxt;
do
{
aud_ftm_cbuf_read(&(pDrvCtxt->fifo_data_buf),(uint8 *)pAud_ftm_rx_buf,
(pDrvCtxt->nRx_blk_convey_samples)*sizeof(int16) );
audio_ftm_hw_write( pDrvCtxt->pDevCtxt,(void *)pAud_ftm_rx_buf,
(uint32)pDrvCtxt->nRx_blk_convey_samples);
/* determine if needing fillful new data */
size=cbuf_data_size(&(pDrvCtxt->fifo_data_buf));
capacity=cbuf_capacity(&(pDrvCtxt->fifo_data_buf));
if( pDrvCtxt->bStart != TRUE ) break;
if(size <= (capacity/2))
{
DALSYS_EventCtrl(pDrvCtxt->hReq_Data_Event, 0,0,NULL,0);
}
}while(1);
pthread_exit(0);
}
static void aud_ftm_tone_generator(void *pCtxt)
{
int32 size, capacity;
uint16 i, channels;
int16 sample;
Aud_FTM_DrvCtxt_T * pDrvCtxt = (Aud_FTM_DrvCtxt_T *)pCtxt;
channels=pDrvCtxt->client_param.channel;
do
{
DALSYS_EventWaitTimeout(pDrvCtxt->hReq_Data_Event, 500); /* 500ms timeout */
if( pDrvCtxt->bStart != TRUE ) break;
/* determine if needing fillful new data */
size=cbuf_data_size(&(pDrvCtxt->fifo_data_buf));
capacity=cbuf_capacity(&(pDrvCtxt->fifo_data_buf));
/* generate data */
DALSYS_memset(pTmpBuf,0,capacity-size-4);
for(i=0; i<((capacity-size-4)/sizeof(int16)); i++)
{
sample=audio_ftm_dtmf_tone_sample_gen(&(pDrvCtxt->dtmfGen) ,pDrvCtxt->nDTMF_Gain);
*(pTmpBuf+i)=sample;
if(channels == AUDIO_FTM_CHN_2)
{
i++;
*(pTmpBuf+i)=sample;
}
}
aud_ftm_cbuf_write (&(pDrvCtxt->fifo_data_buf),(uint8 *)pTmpBuf,(int32)(capacity-size-4));
}while(1);
pthread_exit(0);
}
