Step* CommandParser::ParseStep(char* pBuffer) {
//parse temp
char* pTemp = strchr(pBuffer, '|');
*pTemp++ = '\0';
//parse name
char* pName = strchr(pTemp, '|');
*pName++ = '\0';
//parse ramp duration if exists
char* pEnd;
char* pRampDuration = strchr(pName, '|');
if (pRampDuration) {
*pRampDuration++ = '\0';
pEnd = strchr(pRampDuration, ']');
} else {
pEnd = strchr(pName, '|');
}
*pEnd = '\0';
unsigned long stepDuration = atol(pBuffer);
unsigned long rampDuration = pRampDuration == NULL ? 0 : atol(pRampDuration);
float temp = atof(pTemp);
Step* pStep = gpThermocycler->GetStepPool().AllocateComponent();
pStep->SetName(pName);
pStep->SetStepDurationS(stepDuration);
pStep->SetRampDurationS(rampDuration);
pStep->SetTemp(temp);
return pStep;
}
//PreprocessProgram initializes ETA parameters and validates/modifies ramp conditions
void Thermocycler::PreprocessProgram() {
Step* pCurrentStep;
Step* pPreviousStep = NULL;
iProgramHoldDurationS = 0;
iEstimatedTimeRemainingS = 0;
iHasCooled = false;
iProgramControlledRampDurationS = 0;
iProgramFastRampDegrees = 0;
iElapsedFastRampDegrees = 0;
iTotalElapsedFastRampDurationMs = 0;
ipProgram->BeginIteration();
while ((pCurrentStep = ipProgram->GetNextStep()) && !pCurrentStep->IsFinal()) {
//validate ramp
if (pPreviousStep != NULL && pCurrentStep->GetRampDurationS() * 1000 < absf(pCurrentStep->GetTemp() - pPreviousStep->GetTemp()) * PLATE_FAST_RAMP_THRESHOLD_MS) {
//cannot ramp that fast, ignored set ramp
pCurrentStep->SetRampDurationS(0);
}
//update eta hold
iProgramHoldDurationS += pCurrentStep->GetStepDurationS();
//update eta ramp
if (pCurrentStep->GetRampDurationS() > 0) {
//controlled ramp
iProgramControlledRampDurationS += pCurrentStep->GetRampDurationS();
}
else {
//fast ramp
double previousTemp = pPreviousStep ? pPreviousStep->GetTemp() : GetPlateTemp();
iProgramFastRampDegrees += absf(previousTemp - pCurrentStep->GetTemp()) - CYCLE_START_TOLERANCE;
}
pPreviousStep = pCurrentStep;
}
}
//PreprocessProgram initializes ETA parameters and validates/modifies ramp conditions
void Thermocycler::PreprocessProgram() {
Step* pCurrentStep;
Step* pPreviousStep = NULL;
m_program_hold_duration_sec = 0;
m_estimated_time_remaining_sec = 0;
m_has_cooled = false;
m_program_controlled_ramp_duration_sec = 0;
m_program_fast_ramp_degrees = 0;
m_elapsed_fast_ramp_degrees = 0;
m_total_elapsed_fast_ramp_duration_ms = 0;
m_program->BeginIteration();
while ((pCurrentStep = m_program->GetNextStep()) && !pCurrentStep->IsFinal()) {
//validate ramp
if (pPreviousStep != NULL && pCurrentStep->GetRampDurationS() * 1000 < fabs(pCurrentStep->GetTemp() - pPreviousStep->GetTemp()) * PLATE_FAST_RAMP_THRESHOLD_MS) {
//cannot ramp that fast, ignored set ramp
pCurrentStep->SetRampDurationS(0);
}
//update eta hold
m_program_hold_duration_sec += pCurrentStep->GetStepDurationS();
//update eta ramp
if (pCurrentStep->GetRampDurationS() > 0) {
//controlled ramp
m_program_controlled_ramp_duration_sec += pCurrentStep->GetRampDurationS();
} else {
//fast ramp
double previousTemp = pPreviousStep ? pPreviousStep->GetTemp() : GetPlateTemp();
m_program_fast_ramp_degrees += fabs(previousTemp - pCurrentStep->GetTemp()) - CYCLE_START_TOLERANCE;
}
pPreviousStep = pCurrentStep;
}
}