286 lines
7.9 KiB
C++
286 lines
7.9 KiB
C++
#include "bluetooth.h"
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#define RETURN Timer_Start(this->timer);return;
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/* --------------------------------------------------- */
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/* --------------------------------------------------- */
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/* ----------------- CLASS BLUETOOTH ----------------- */
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/* --------------------------------------------------- */
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/* --------------------------------------------------- */
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Bluetooth::Bluetooth(){
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this->sentPacketsTotalSize = 0;
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this->receivedPacketsTotalSize = 0;
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this->unread = 0;
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this->allowReception = 1;
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this->ID = 0;
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this->secondTry = 0;
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memcpy(this->sender, "HC-06\0", 6);
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}
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int Bluetooth::listen(int maxSize, int timer, void(*func)(void), int time){
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unsigned char conf[6] = {0, 5, 0, 0, 0, 0};
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max = maxSize;
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this->ptr = (char*)malloc(maxSize);
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this->ptr1ko = (char*)malloc(1000);
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if(this->ptr == NULL || this->ptr1ko == NULL) return NOT_ENOUGH_RAM;
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this->timer = Timer_Install(timer, func, time);
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if(Serial_Open(conf) == 3) return SERIAL_ALREADY_OPEN;
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Timer_Start(this->timer);
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return 0;
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}
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int Bluetooth::setSender(char *senderName){
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if(strlen(senderName)+1 <= 10){
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if(strlen(senderName) >= 0){
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memcpy(this->sender, senderName, strlen(senderName)+1);
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}else{
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return SENDER_EMPTY;
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}
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}else{
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return SENDER_TOO_BIG;
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}
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return 0;
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}
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int Bluetooth::sendMessage(Message *message){
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int split, RTCTime, temp;
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char *ptr2;
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unsigned char dateEx[] = "YYYY-MM-DD-HH-MM-SS";
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split = (int)((message->getLength())/208) + (message->getLength()%208) == 0 ? 0:1;
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if((ptr2 = (char*)malloc(256)) == NULL) return NOT_ENOUGH_RAM;
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this->ID++;
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PrintMini(1,1,(const unsigned char*)itoa(split),MINI_OR);
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for(int i=0; i<split; i++){
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memcpy(ptr2,dateEx, 19);
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if(message->getType() == NULL){
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memcpy(ptr2+19,"RQT",3);
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}else{
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memcpy(ptr2+19, message->getType(), 3);
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}
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if(message->isHeader){
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memcpy(ptr+22, message->msg+22, sizeof(int));
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memcpy(ptr+26, message->msg+26, 10);
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}else{
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memcpy(ptr+22, (int*)this->ID, sizeof(int));
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memcpy(ptr+26, this->sender, 10);
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}
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memcpy(ptr2+36, (int*)message->getLength(), sizeof(int));
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memcpy(ptr2+40, (int*)(((i+1)*208 > message->getLength()) ? (message->getLength() - i*208) : 208), sizeof(int));
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memcpy(ptr2+44, (unsigned short*)(i+1), sizeof(unsigned short));
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memcpy(ptr2+46, (unsigned short*)split, sizeof(unsigned short));
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memcpy(ptr2+48, (int*)(message->getMessage()+i*208, ((i+1)*208 > message->getLength()) ? (message->getLength() - i*208) : 208), sizeof(int));
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Serial_WriteBytes((unsigned char*)ptr2,50);
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RTCTime = RTC_GetTicks();
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while(Serial_GetTxBufferFreeCapacity() != 0){
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if((RTC_GetTicks() - RTCTime)/RTC > 300){
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free(ptr2);
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this->ID--;
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return UNKNOWN_ERROR;
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}
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}
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}
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free(ptr2);
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return 0;
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}
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Message& Bluetooth::getLastMessage(){
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return msg;
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}
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void Bluetooth::receptMessage(){
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int size, errorID;
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int RTCTime;
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int messageLength = 48;
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int typeCase;
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char buffer[50];
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int lengthPackets[2];
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unsigned short partsNumber[2] = {(unsigned short)0,(unsigned short)1};
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const char type[7][4] = {"RQT","ASW","ACK","MIS","FUL","ERR","END"};
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const char err[1][4] = {"ERR"};
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char ptr2[3];
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unsigned int messageID;
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Message sendBack;
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if((this->secondTry = Serial_GetRxBufferSize()) == 1000 || this->secondTry==Serial_GetRxBufferSize()){
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// if allowReception. else, send back a FUL packet to the device
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if(this->allowReception){
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Serial_ReadBytes((unsigned char*)this->ptr1ko, 1000,(short*)&size);
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memcpy(ptr2, this->ptr1ko+19, 3);
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typeCase = tabcmp((const char**)type, 7, ptr2);
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switch(typeCase){
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case RQT:
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case END:
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case ASW:
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memcpy(&this->ID, (unsigned int*)this->ptr1ko+22, sizeof(unsigned int));
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if(size < 48){
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sendBack.init("HED", this->ID, this->sender, "");
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sendMessage(&sendBack);
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RETURN
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}
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memcpy(this->sender, this->ptr1ko+26, 10);
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for(unsigned short i=0; i<partsNumber[1]; i++){
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memcpy(&messageID, (unsigned int*)this->ptr1ko+22, sizeof(unsigned int));
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if(messageID != this->ID){
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sendBack.init("ERR", messageID, this->sender, "INCORRECT ID");
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sendMessage(&sendBack);
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RETURN }
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memcpy(lengthPackets, this->ptr1ko+36, sizeof(lengthPackets));
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sprintf(buffer,"%d", i+1);
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if(partsNumber[0] != i+1){
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if(partsNumber[0] > i+1){
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sendBack.init("MIS", messageID, this->sender, buffer);
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sendMessage(&sendBack);
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}else{
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sendBack.init("ACK", messageID, this->sender, buffer);
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sendMessage(&sendBack);
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}
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}else if(lengthPackets[1] != size-48){
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sendBack.init("ERR", messageID, this->sender, "INCOMPLETE PACKET SIZE");
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sendMessage(&sendBack);
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RETURN
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}else{
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messageLength+=size-48;
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memcpy(this->ptr+48+i*952, this->ptr1ko+48, 952);
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sendBack.init("ACK", messageID, this->sender, buffer);
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sendMessage(&sendBack);
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if(messageLength-48 == lengthPackets[0] && partsNumber[0] == partsNumber[1]){
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if(!(errorID = msg.setTotalMessage(this->ptr))){
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this->unread = 1;
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this->allowReception = 0;
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this->ID++;
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RETURN
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}else{
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sendBack.init("ERR", messageID, this->sender, (char*)&err[errorID]);
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sendMessage(&sendBack);
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RETURN
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}
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}
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}
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RTCTime = RTC_GetTicks();
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while(Serial_GetRxBufferSize() != (lengthPackets[0]-messageLength-48>1000 ? 1000 : lengthPackets[0]-messageLength-48)){
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if((RTC_GetTicks() - RTCTime)/RTC > 300){
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RETURN
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}
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}
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memcpy(partsNumber, this->ptr1ko+44, sizeof(partsNumber));
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}
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break;
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}
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}else{
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sendBack.init("FUL", this->ID, this->sender, "");
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sendMessage(&sendBack);
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RETURN
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}
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}else if(Serial_GetRxBufferSize()>0){
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this->secondTry = Serial_GetRxBufferSize();
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RETURN
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}
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}
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/* --------------------------------------------------- */
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/* --------------------------------------------------- */
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/* ------------------ CLASS MESSAGE ------------------ */
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/* --------------------------------------------------- */
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/* --------------------------------------------------- */
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Message::Message(){
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this->isHeader = 0;
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this->isType = 0;
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this->msg = (char*)NULL;
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}
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int Message::init(const char* type, int ID, char* sender,const char* message){
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if(setType(type)) return INVALID_TYPE;
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if(setMessage(message)) return NOT_ENOUGH_RAM;
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return 0;
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}
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int Message::setType(const char *typeH){
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memcpy(this->type, typeH, 3);
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this->isType = 1;
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return 0;
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}
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int Message::setMessage(const char *message){
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int length;
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length = strlen(message) + 49;
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this->msg = (char*)realloc(this->msg, length);
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if(this->msg == NULL) return NOT_ENOUGH_RAM;
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memcpy(this->msg+48, message, length-48);
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return 0;
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}
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int Message::setTotalMessage(char *message){
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this->msg = message;
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this->isHeader = 1;
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return 0;
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}
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char* Message::getTime(){
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if(this->isHeader){
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return this->msg;
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}else{
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return (char*)NULL;
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}
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}
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char* Message::getType(){
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if(this->isHeader || this->isType){
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return this->msg+19;
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}else{
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return (char*)NULL;
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}
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}
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char* Message::getSender(){
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if(this->isHeader){
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return this->msg+26;
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}else{
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return (char*)NULL;
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}
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}
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int Message::getLength(){
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if(this->msg == NULL) return -1;
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return strlen(this->msg+48)+1;
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}
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unsigned char* Message::getMessage(){
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return (unsigned char*)this->msg+48;
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}
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int tabcmp(const char *tab[4], int size, char* string){
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for(int i=0; i<size; i++){
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if(!strncmp(tab[i], string, 4)) return i;
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}
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return -1;
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}
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char *itoa(int i){
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static char buf[21];
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char *p = buf + 20;
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if (i >= 0) {
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do{
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*--p = '0' + (i % 10);
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i /= 10;
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}while (i != 0);
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return p;
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}else {
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do {
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*--p = '0' - (i % 10);
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i /= 10;
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}while (i != 0);
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*--p = '-';
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}
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return p;
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}
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