int peek() {
if (!_available) {
if (!_readAll())
return -1;
}
return _read_ptr[0];
}
int available() {
auto cb = _available;
if (cb == 0) {
cb = _readAll();
} else {
optimistic_yield(100);
}
return cb;
}
size_t peekBytes(char *dst, size_t size) {
if(!_available) {
if(!_readAll())
return -1;
}
size_t will_copy = (_available < size) ? _available : size;
memcpy(dst, _read_ptr, will_copy);
return will_copy;
}
/* CONSTRUCTOR */
CPV::CPV ( sSimCnf* sSimCnf , XMLElement* cnf , TVFloat* pv_gen , TVFloat* pv_frc ){
/* General Simulator Configuration */
m_sSimCnf = sSimCnf;
/* Get input files (hourly data) */
if ( cnf->Attribute("gen") ){
m_sPwGenFile = cnf->Attribute("gen");
/* Get profile only one time */
if ( pv_gen->size() == 0 ){
_readAll( &m_sPwGenFile , pv_gen );
}
}
if ( cnf->Attribute("frc") ){
m_sPwFrcFile = cnf->Attribute("frc");
/* Get profile only one time */
if ( pv_frc->size() == 0 ){
_readAll( &m_sPwFrcFile , pv_frc );
}
}
if ( cnf->Attribute("type") ){ // Two available types: 0 (from file) and 1 (from model)
m_nType = atoi(cnf->Attribute("type"));
}
else{
m_nType = 0;
}
if ( cnf->Attribute("power") ){
m_fPAmp = atof(cnf->Attribute("power"));
}
else{
m_fPAmp = 0.0;
}
/* Get profiles for the node */
m_vPwGen = pv_gen;
m_vPwFrc = pv_frc;
/* Create PV model if required */
if ( m_nType == 1 ){
m_pcPVmodel = new CPVmodel ( sSimCnf , cnf );
}
return;
};
int read() {
if (!_available) {
if (!_readAll())
return -1;
}
int result = _read_ptr[0];
++_read_ptr;
--_available;
if (_available == 0) {
_read_ptr = nullptr;
}
return result;
}
int read(uint8_t* dst, size_t size) {
if (!_available) {
if (!_readAll())
return 0;
}
size_t will_copy = (_available < size) ? _available : size;
memcpy(dst, _read_ptr, will_copy);
_read_ptr += will_copy;
_available -= will_copy;
if (_available == 0) {
_read_ptr = nullptr;
}
return will_copy;
}