int llclose_transmitter(int fd) {
info->tentativas = tentativas;
while(info->tentativas > 0) {
buildFrame(info->flag, "disc");
transmitirFrame(info->frameSend, info->frameSendLength);
start_alarm();
info->frameTempLength = readFrame(info->frameTemp);
char * type = malloc(5);
type = verifyFrameType(info->frameTemp);
if (verifyFrame(info->frameTemp, info->frameTempLength, "disc")) {
buildFrame(info->flag, "ua");
if(transmitirFrame(info->frameSend, info->frameSendLength))
break;
}
}
if (info->tentativas == 0) {
printf("Número de tentativas chegou ao fim. \n");
exit(-1);
}
sleep(1);
if ( tcsetattr(info->fd,TCSANOW,&info->oldtio) == -1) {
perror("tcsetattr");
return -1;
}
close(fd);
printf("fechou transmissor\n");
return 1;
}
Assets::Md2Model::FrameList Md2Parser::buildFrames(const Md2FrameList& frames, const Md2MeshList& meshes) {
Assets::Md2Model::FrameList modelFrames;
modelFrames.reserve(frames.size());
Md2FrameList::const_iterator it, end;
for (it = frames.begin(), end = frames.end(); it != end; ++it) {
const Md2Frame& frame = *it;
Assets::Md2Model::Frame* modelFrame = buildFrame(frame, meshes);
modelFrames.push_back(modelFrame);
}
return modelFrames;
}
int llclose_receiver(int fd) {
info->tentativas = tentativas;
while(1) {
info->frameTempLength = readFrame(info->frameTemp);
char * type = malloc(5);
type = verifyFrameType(info->frameTemp);
if (type == "I0" || type == "I1") {
if (verifyFrame(info->frameTemp, info->frameTempLength, type)) {
char * typeRR = malloc(5);
sprintf(typeRR, "rr%d", !info->sequenceNumber);
//printf("criar frame de %s \n", typeRR);
buildFrame(info->flag, typeRR);
transmitirFrame(info->frameSend, info->frameSendLength);
free(typeRR);
int j;
//printf("dados recebidos: ");
for(j = 0; j < (info->frameTempLength-6); j++) {
info->dados[j] = info->frameTemp[4+j];
//printf(" %x ", info->dados[j]);
}
//printf("\n");
info->lengthDados = j;
continue;
}
else {
char * typeREJ = malloc(5);
sprintf(typeREJ, "rej%d", !info->sequenceNumber);
//printf("criar frame de %s \n", typeREJ);
buildFrame(info->flag, typeREJ);
transmitirFrame(info->frameSend, info->frameSendLength);
free(typeREJ);
continue;
}
}
else if (verifyFrame(info->frameTemp, info->frameTempLength, "disc")) {
buildFrame(info->flag, "disc");
transmitirFrame(info->frameSend, info->frameSendLength);
start_alarm();
info->frameTempLength = readFrame(info->frameTemp);
type = verifyFrameType(info->frameTemp);
if (verifyFrame(info->frameTemp, info->frameTempLength, "ua")) {
break;
}
}
else {
printf("llclose_receiver não recebeu nem I nem disc \n");
}
}
if ( tcsetattr(info->fd,TCSANOW,&info->oldtio) == -1) {
perror("tcsetattr");
return 0;
}
close(fd);
printf("fechou recetor\n");
return 1;
}
int llread(int fd, char * buffer) {
//printf("iniciar llread \n");
while(1) {
info->frameTempLength = readFrame(info->frameTemp);
char * type = NULL;
type = verifyFrameType(info->frameTemp);
if (type == "set") {
buildFrame(info->flag, "ua");
transmitirFrame(info->frameSend, info->frameSendLength);
continue;
}
else if (type == "I0" || type == "I1") {
destuffing(info->frameTemp, &info->frameTempLength);
//fprintf(stderr,"Destuffing ");
/*int bb;
for(bb = 0; bb < info->frameTempLength; bb++){
fprintf(stderr,"0x%x ", info->frameTemp[bb]);
}
fprintf(stderr,"\n");*/
if (verifyFrame(info->frameTemp, info->frameTempLength, type)) {
if(type == "I0" && !info->sequenceNumber
|| type == "I1" && info->sequenceNumber) {
//printf("recebeu a trama I correspondente aos sequenceNumber %d \n", info->sequenceNumber);
char * typeRR = malloc(5);
sprintf(typeRR, "rr%d", !info->sequenceNumber);
//printf("criar frame de %s \n", typeRR);
buildFrame(info->flag, typeRR);
transmitirFrame(info->frameSend, info->frameSendLength);
free(typeRR);
info->sequenceNumber = !info->sequenceNumber;
}
else {
char * typeRR = malloc(5);
sprintf(typeRR, "rr%d", info->sequenceNumber);
//printf("criar frame de %s \n", typeRR);
buildFrame(info->flag, typeRR);
transmitirFrame(info->frameSend, info->frameSendLength);
free(typeRR);
continue;
}
int j;
//printf("frameTempLength: %d\n", info->frameTempLength);
//printf("dados recebidos: ");
for(j = 0; j < (info->frameTempLength-6); j++) {
info->dados[j] = info->frameTemp[4+j];
//printf(" %x ", info->dados[j]);
buffer[j] = info->dados[j];
//printf(" %x \n", info->dados[j]);
}
//printf("\n");
info->lengthDados = j;
}
else {
char * typeREJ = malloc(5);
sprintf(typeREJ, "rej%d", !info->sequenceNumber);
//printf("criar frame de %s \n", typeREJ);
buildFrame(info->flag, typeREJ);
transmitirFrame(info->frameSend, info->frameSendLength);
free(typeREJ);
continue;
}
}
break;
}
return 1;
}
int llopen(char * porta, int flag) {
printf("FLAG (TRANS/REC) = %d \n", flag);
info = malloc(sizeof(struct Info));
info->dados = malloc(255);
info->frameTemp = malloc(255);
info->frameSend = malloc(255);
info->timeout = timeOut;
install_handler(atende, info->timeout);
//printf("sequenceNumber: %d \n", info->sequenceNumber);
info->tentativas = tentativas;
info->flag = flag;
info->endPorta = malloc(255);
info->endPorta = porta;
info->fd = open(info->endPorta, O_RDWR | O_NOCTTY);
if (info->fd < 0) {
perror(info->endPorta);
exit(-1);
}
if ( tcgetattr(info->fd,&info->oldtio) == -1) { // save current port settings
perror("tcgetattr");
return -1;
}
bzero(&info->newtio, sizeof(info->newtio));
info->newtio.c_cflag = BaudRate | CS8 | CLOCAL | CREAD;
info->newtio.c_iflag = IGNPAR;
info->newtio.c_oflag = OPOST;
// set input mode (non-canonical, no echo,...)
info->newtio.c_lflag = 0;
info->newtio.c_cc[VTIME] = 0; // inter-character timer unused
info->newtio.c_cc[VMIN] = 1; // blocking read until 5 chars received
tcflush(info->fd, TCIFLUSH);
if ( tcsetattr(info->fd,TCSANOW,&info->newtio) == -1) {
perror("tcsetattr");
return -1;
}
if (flag == TRANSMITTER) {
printf("llopen de transmissor \n");
buildFrame(flag, "set");
transmitirFrame(info->frameSend, info->frameSendLength);
while(info->tentativas > 0) {
//printf("tentativasOpen = %d \n", info->tentativas);
start_alarm();
info->frameTempLength = readFrame(info->frameTemp);
if (verifyFrame(info->frameTemp, info->frameTempLength, "ua")) {
stop_alarm();
info->tentativas = tentativas;
return 1;
}
}
if (info->tentativas == 0) {
printf("Número de tentativas chegou ao fim. \n");
exit(-1);
}
}
else {
printf("llopen de recetor \n");
info->frameTempLength = readFrame(info->frameTemp);
if (verifyFrame(info->frameTemp, info->frameTempLength, "set")) {
buildFrame(flag, "ua");
transmitirFrame(info->frameSend, info->frameSendLength);
//printf("terminar llopen recetor \n");
return 1;
}
}
return info->fd;
}
