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Added callback functionality #238

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3ce704b
added callback functionality to the header file
TMInnovations Jun 21, 2018
fcba1b2
added callback functionality in cpp file
TMInnovations Jun 21, 2018
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7 changes: 7 additions & 0 deletions RCSwitch.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -97,6 +97,7 @@ const unsigned int RCSwitch::nSeparationLimit = 4300;
// according to discussion on issue #14 it might be more suitable to set the separation
// limit to the same time as the 'low' part of the sync signal for the current protocol.
unsigned int RCSwitch::timings[RCSWITCH_MAX_CHANGES];
pFunc cb = NULL; // callback function pointer storage
#endif

RCSwitch::RCSwitch() {
Expand Down Expand Up @@ -590,6 +591,10 @@ unsigned int* RCSwitch::getReceivedRawdata() {
return RCSwitch::timings;
}

static void RCSwitch::setCallback(pFunc __callback) { // setter function for callback function storage
cb = __callback;
}

/* helper function for the receiveProtocol method */
static inline unsigned int diff(int A, int B) {
return abs(A - B);
Expand Down Expand Up @@ -680,6 +685,8 @@ void RECEIVE_ATTR RCSwitch::handleInterrupt() {
for(unsigned int i = 1; i <= numProto; i++) {
if (receiveProtocol(i, changeCount)) {
// receive succeeded for protocol i
if (cb != NULL) // finally call the callback function
cb();
break;
}
}
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5 changes: 5 additions & 0 deletions RCSwitch.h
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Expand Up @@ -60,6 +60,8 @@
// We can handle up to (unsigned long) => 32 bit * 2 H/L changes per bit + 2 for sync
#define RCSWITCH_MAX_CHANGES 67

typedef void (*pFunc)(); // function Pointer for functions like --> void foo() {...}, no return value, no arguments

class RCSwitch {

public:
Expand Down Expand Up @@ -92,6 +94,9 @@ class RCSwitch {
unsigned int getReceivedDelay();
unsigned int getReceivedProtocol();
unsigned int* getReceivedRawdata();

static void setCallback(pFunc __callback); // member function declaration for setting the callback function

#endif

void enableTransmit(int nTransmitterPin);
Expand Down