void GPUERT::deviceHandler(){
m_devId = m_gfxMgr->createDeviceContext(m_devId);
calculateMaxNodes(m_devId);
initResources();
m_constantsBagging.cb_baggingActivated = false;
TimerPtr timerKernel = TimerPtr(new boost::timer);
TimerPtr timer = TimerPtr(new boost::timer);
TimerPtr timerTotal = TimerPtr(new boost::timer);
m_internalNodes = 0, m_leafNodes = 0;
int treesLeft = m_numTrees;
int treesToLaunch = m_maxTreesPerIteration;
int lastLaunch = 0;
int checkSum = m_maxTreesPerIteration;
int newNodes = m_maxTreesPerIteration;
std::vector<int> checkVars(4,0);
m_buildTime = 0;
m_baggingTime = 0;
m_classificationTime = 0;
m_depth = 0;
timerTotal->restart();
int numIter = ceil(float(m_numTrees)/float(m_maxTreesPerIteration));
for(unsigned int j=0; j<numIter; ++j){
checkSum = treesToLaunch;
newNodes = treesToLaunch;
m_constants.cb_nodeBufferStart = 0;
m_constants.cb_nodeIdFlip = 0;
initResourceBatch(lastLaunch == treesToLaunch);
lastLaunch = treesToLaunch;
treesLeft -= treesToLaunch;
timer->restart();
for(unsigned int i=0; i<m_MaxDepth; ++i){
if(i > m_depth)
m_depth = i;
assert(newNodes < m_maxNodesPerIteration);
int nodeLimit = 10000;
int innerNodes = newNodes;
int numInnerIter = ceil(float(innerNodes)/float(nodeLimit));
int launchCount = 0;
m_constants.cb_availableNodes = newNodes;
m_constants.cb_numFeatures = 0;
timerKernel->restart();
for(unsigned int k=0; k<m_numFeatures; ++k){
innerNodes = newNodes;
numInnerIter = ceil(float(innerNodes)/float(nodeLimit));
launchCount = 0;
// Best split kernel
m_gfxMgr->setGPUBuffer(m_devId,m_setBufferIdsExFindSplit,m_setResourceTypesExFindSplit);
m_gfxMgr->setGPUProgram(m_devId,m_gpuFunctionIds["RFP_ExFindSplit"]);
innerNodes = newNodes;
launchCount = 0;
m_constants.cb_currentDepth = 0;
for(unsigned int l=0; l<numInnerIter; ++l){
launchCount = innerNodes > nodeLimit ? nodeLimit : innerNodes;
m_gfxMgr->copyToGPU(m_devId,m_bufferIds["RFB_constants"],&ConstantUpdate(&m_constants,KID_ExtremeFindSplit),sizeof(m_constants));
m_gfxMgr->launchComputation(m_devId,launchCount*thread_group_size,1,1);
m_constants.cb_currentDepth += launchCount;
innerNodes -= launchCount;
if(innerNodes <= 0)
break;
}
++m_constants.cb_numFeatures;
}
if(m_kernelSpecificTimings){
m_gfxMgr->syncDevice(m_devId);
m_kernelTimes[L"RFP_ExFindSplit"] += timerKernel->elapsed();
}
innerNodes = newNodes;
launchCount = 0;
m_constants.cb_currentDepth = 0;
m_gfxMgr->setGPUBuffer(m_devId,m_setBufferIdsExMakeSplit,m_setResourceTypesExMakeSplit);
m_gfxMgr->setGPUProgram(m_devId,m_gpuFunctionIds["RFP_ExMakeSplit"]);
// Split data
timerKernel->restart();
for(unsigned int k=0; k<numInnerIter; ++k){
launchCount = innerNodes > nodeLimit ? nodeLimit : innerNodes;
m_gfxMgr->copyToGPU(m_devId,m_bufferIds["RFB_constants"],&ConstantUpdate(&m_constants,KID_ExtremeMakeSplit),sizeof(m_constants));
m_gfxMgr->launchComputation(m_devId,launchCount*thread_group_size,1,1);
m_constants.cb_currentDepth += launchCount;
innerNodes -= launchCount;
if(innerNodes <= 0)
break;
}
if(m_kernelSpecificTimings){
m_gfxMgr->syncDevice(m_devId);
m_kernelTimes[L"RFP_ExMakeSplit"] += timerKernel->elapsed();
}
// Swap buffer to avoid unecessary copying
int tmpBuffId = m_bufferIds["RFB_nodeIndices"];
m_bufferIds["RFB_nodeIndices"] = m_bufferIds["RFB_nodeIndicesMirror"];
m_bufferIds["RFB_nodeIndicesMirror"] = tmpBuffId;
setBufferSettings();
m_constants.cb_currentDepth = i;
// Evaluate splits
timerKernel->restart();
m_gfxMgr->setGPUBuffer(m_devId,m_setBufferIdsExCreateNodes,m_setResourceTypesExCreateNodes);
m_gfxMgr->copyToGPU(m_devId,m_bufferIds["RFB_constants"],&ConstantUpdate(&m_constants,KID_ExtremeCreateNodes),sizeof(m_constants));
m_gfxMgr->setGPUProgram(m_devId,m_gpuFunctionIds["RFP_ExCreateNodes"]);
m_gfxMgr->launchComputation(m_devId,newNodes,1,1);
// Get continuation variables
m_gfxMgr->copyFromGPU(m_devId,m_bufferIds["RFB_checkVariables"],&checkVars[0],checkVars.size()*sizeof(int));
if(m_kernelSpecificTimings){
m_gfxMgr->syncDevice(m_devId);
m_kernelTimes[L"RFP_ExCreateNd"] += timerKernel->elapsed();
}
m_constants.cb_nodeBufferStart = checkSum;
checkSum = checkVars[2];
m_leafNodes += checkVars[3];
newNodes = checkSum;
m_internalNodes += checkSum;
checkVars[1] = 0;
checkVars[2] = 0;
checkVars[3] = 0;
m_gfxMgr->copyToGPU(m_devId,m_bufferIds["RFB_checkVariables"],&checkVars[0],checkVars.size()*sizeof(int));
m_constants.cb_nodeIdFlip = (m_constants.cb_nodeIdFlip == 0) ? 1 : 0;
if(newNodes <= 0)
break;
}
m_buildTime += timer->elapsed();
// Vote on test instances
timer->restart();
runClassificationProcess(treesToLaunch);
m_classificationTime += timer->elapsed();
if(m_saveModel)
getResultsFromGPU();
m_data->m_gui->setProgressBar(IDC_PROGRESSBAR_PROGRESS,100,(float(m_numTrees-treesLeft)/float(m_numTrees))*100);
if(treesLeft != 0 && treesLeft < m_maxTreesPerIteration){
treesToLaunch = treesLeft;
m_maxTreesPerIteration = treesToLaunch;
}
}
getVotesFromGPU();
m_totalTime = timerTotal->elapsed();
m_bar->wait();
}
SEXP fmelt(SEXP DT, SEXP id, SEXP measure, SEXP varfactor, SEXP valfactor, SEXP var_name, SEXP val_name, SEXP na_rm, SEXP drop_levels, SEXP print_out) {
int i, j, k, nrow, ncol, protecti=0, lids=-1, lvalues=-1, totlen=0, counter=0, thislen=0;
SEXP thiscol, ans, dtnames, ansnames, idcols, valuecols, levels, factorLangSxp;
SEXP vars, target, idxkeep = R_NilValue, thisidx = R_NilValue;
Rboolean isfactor=FALSE, isidentical=TRUE, narm = FALSE, droplevels=FALSE, verbose=FALSE;
SEXPTYPE valtype=NILSXP;
size_t size;
if (TYPEOF(DT) != VECSXP) error("Input is not of type VECSXP, expected a data.table, data.frame or list");
if (TYPEOF(valfactor) != LGLSXP) error("Argument 'value.factor' should be logical TRUE/FALSE");
if (TYPEOF(varfactor) != LGLSXP) error("Argument 'variable.factor' should be logical TRUE/FALSE");
if (TYPEOF(na_rm) != LGLSXP) error("Argument 'na.rm' should be logical TRUE/FALSE");
if (LOGICAL(na_rm)[0] == TRUE) narm = TRUE;
if (TYPEOF(print_out) != LGLSXP) error("Argument 'verbose' should be logical TRUE/FALSE");
if (LOGICAL(print_out)[0] == TRUE) verbose = TRUE;
// check for var and val names
if (TYPEOF(var_name) != STRSXP || length(var_name) != 1) error("Argument 'variable.name' must be a character vector of length 1");
if (TYPEOF(val_name) != STRSXP || length(val_name) != 1) error("Argument 'value.name' must be a character vector of length 1");
// droplevels future feature request, maybe... should ask on data.table-help
// if (!isLogical(drop_levels)) error("Argument 'drop.levels' should be logical TRUE/FALSE");
// if (LOGICAL(drop_levels)[0] == TRUE) droplevels = TRUE;
// if (droplevels && !narm) warning("Ignoring argument 'drop.levels'. 'drop.levels' should be set to remove any unused levels as a result of setting 'na.rm=TRUE'. Here there is nothing to do because 'na.rm=FALSE'");
ncol = LENGTH(DT);
nrow = length(VECTOR_ELT(DT, 0));
if (ncol <= 0) {
warning("ncol(data) is 0. Nothing to do, returning original data.table.");
return(DT);
}
PROTECT(dtnames = getAttrib(DT, R_NamesSymbol)); protecti++;
if (isNull(dtnames)) error("names(data) is NULL. Please report to data.table-help");
vars = checkVars(DT, id, measure, verbose);
PROTECT(idcols = VECTOR_ELT(vars, 0)); protecti++;
PROTECT(valuecols = VECTOR_ELT(vars, 1)); protecti++; // <~~~ not protecting vars leads to segfault (on big data)
lids = length(idcols);
lvalues = length(valuecols);
// edgecase where lvalues = 0 and lids > 0
if (lvalues == 0 && lids > 0) {
if (verbose) Rprintf("length(measure.var) is 0. Edge case detected. Nothing to melt. Returning data.table with all 'id.vars' which are columns %s\n", CHAR(STRING_ELT(concat(dtnames, idcols), 0)));
PROTECT(ansnames = allocVector(STRSXP, lids)); protecti++;
PROTECT(ans = allocVector(VECSXP, lids)); protecti++;
for (i=0; i<lids; i++) {
SET_VECTOR_ELT(ans, i, VECTOR_ELT(DT, INTEGER(idcols)[i]-1));
SET_STRING_ELT(ansnames, i, STRING_ELT(dtnames, INTEGER(idcols)[i]-1));
}
setAttrib(ans, R_NamesSymbol, ansnames);
UNPROTECT(protecti);
return(ans);
}
if (lvalues == 0 && lids == 0 && verbose)
Rprintf("length(measure.var) and length(id.var) are both 0. Edge case detected. Nothing to melt.\n"); // <~~ don't think this will ever happen though with all the checks
// set names for 'ans' - the output list
PROTECT(ansnames = allocVector(STRSXP, lids+2)); protecti++;
for (i=0; i<lids; i++) {
SET_STRING_ELT(ansnames, i, STRING_ELT(dtnames, INTEGER(idcols)[i]-1));
}
SET_STRING_ELT(ansnames, lids, mkChar(CHAR(STRING_ELT(var_name, 0)))); // mkChar("variable")
SET_STRING_ELT(ansnames, lids+1, mkChar(CHAR(STRING_ELT(val_name, 0)))); // mkChar("value")
// get "value" column
for (i=0; i<lvalues; i++) {
thiscol = VECTOR_ELT(DT, INTEGER(valuecols)[i]-1);
if (!isfactor && isFactor(thiscol)) isfactor = TRUE;
if (TYPEOF(thiscol) > valtype) valtype = TYPEOF(thiscol);
}
if (isfactor && valtype != VECSXP) valtype = STRSXP;
for (i=0; i<lvalues; i++) {
thiscol = VECTOR_ELT(DT, INTEGER(valuecols)[i]-1);
if (TYPEOF(thiscol) != valtype && isidentical) {
if (!(isFactor(thiscol) && valtype == STRSXP)) {
isidentical = FALSE; // for Date like column (not implemented for now)
warning("All 'measure.vars are NOT of the SAME type. By order of hierarchy, the molten data value column will be of type '%s'. Therefore all measure variables that are not of type '%s' will be coerced to. Check the DETAILS section of ?melt.data.table for more on coercion.\n", type2char(valtype), type2char(valtype));
break;
}
}
}
if (valtype == VECSXP && narm) {
narm = FALSE;
if (verbose) Rprintf("The molten data value type is a list. 'na.rm=TRUE' is therefore ignored.\n");
}
if (narm) {
PROTECT(idxkeep = allocVector(VECSXP, lvalues)); protecti++;
for (i=0; i<lvalues; i++) {
SET_VECTOR_ELT(idxkeep, i, which_notNA(VECTOR_ELT(DT, INTEGER(valuecols)[i]-1)));
totlen += length(VECTOR_ELT(idxkeep, i));
}
} else
totlen = nrow * lvalues;
PROTECT(ans = allocVector(VECSXP, lids + 2)); protecti++;
target = PROTECT(allocVector(valtype, totlen));
for (i=0; i<lvalues; i++) {
thiscol = VECTOR_ELT(DT, INTEGER(valuecols)[i]-1);
if (isFactor(thiscol))
thiscol = asCharacterFactor(thiscol);
if (TYPEOF(thiscol) != valtype && !isFactor(thiscol)) {
// thiscol = valtype == STRSXP ? PROTECT(coerce_to_char(thiscol, R_GlobalEnv)) : PROTECT(coerceVector(thiscol, valtype));
// protecti++; // for now, no preserving of class attributes
thiscol = PROTECT(coerceVector(thiscol, valtype)); protecti++;
}
size = SIZEOF(thiscol);
if (narm) {
thisidx = VECTOR_ELT(idxkeep, i);
thislen = length(thisidx);
}
switch(valtype) {
case VECSXP :
if (narm) {
for (j=0; j<thislen; j++)
SET_VECTOR_ELT(target, counter + j, VECTOR_ELT(thiscol, INTEGER(thisidx)[j]-1));
} else {
for (j=0; j<nrow; j++) SET_VECTOR_ELT(target, i*nrow + j, VECTOR_ELT(thiscol, j));
}
break;
case STRSXP :
if (narm) {
for (j=0; j<thislen; j++)
SET_STRING_ELT(target, counter + j, STRING_ELT(thiscol, INTEGER(thisidx)[j]-1));
} else {
for (j=0; j<nrow; j++) SET_STRING_ELT(target, i*nrow + j, STRING_ELT(thiscol, j));
}
break;
case REALSXP :
if (narm) {
for (j=0; j<thislen; j++)
REAL(target)[counter + j] = REAL(thiscol)[INTEGER(thisidx)[j]-1];
} else {
memcpy((char *)DATAPTR(target)+i*nrow*size, (char *)DATAPTR(thiscol), nrow*size);
}
break;
case INTSXP :
if (narm) {
for (j=0; j<thislen; j++)
INTEGER(target)[counter + j] = INTEGER(thiscol)[INTEGER(thisidx)[j]-1];
} else {
memcpy((char *)DATAPTR(target)+i*nrow*size, (char *)DATAPTR(thiscol), nrow*size);
}
break;
case LGLSXP :
if (narm) {
for (j=0; j<thislen; j++)
LOGICAL(target)[counter + j] = LOGICAL(thiscol)[INTEGER(thisidx)[j]-1];
} else {
memcpy((char *)DATAPTR(target)+i*nrow*size, (char *)DATAPTR(thiscol), nrow*size);
}
break;
default : error("Unknown column type '%s' for column '%s' in 'data'", type2char(TYPEOF(thiscol)), CHAR(STRING_ELT(dtnames, INTEGER(valuecols)[i]-1)));
}
if (narm) counter += thislen;
// if (isidentical && valtype != VECSXP) // for now, no preserving of class attributes
// setAttrib(target, R_ClassSymbol, getAttrib(VECTOR_ELT(DT, INTEGER(valuecols)[0]-1), R_ClassSymbol)); // for Date like column
}
// check for factor
if (LOGICAL(valfactor)[0] == TRUE && valtype == VECSXP) warning("argument 'value.factor' ignored because 'value' column is a list\n");
if (LOGICAL(valfactor)[0] == TRUE && valtype != VECSXP) {
PROTECT(factorLangSxp = allocList(2));
SET_TYPEOF(factorLangSxp, LANGSXP);
SETCAR(factorLangSxp, install("factor"));
SETCAR(CDR(factorLangSxp), target);
SET_VECTOR_ELT(ans, lids+1, eval(factorLangSxp, R_GlobalEnv)); // last column
UNPROTECT(1); // factorLangSxp
} else
SET_VECTOR_ELT(ans, lids+1, target);
UNPROTECT(1); // target
// get "variable" column
counter = 0, i=0;
target = PROTECT(allocVector(INTSXP, totlen));
for (j=0; j<lvalues; j++) {
if (narm) {
thislen = length(VECTOR_ELT(idxkeep, j));
for (k=0; k<thislen; k++)
INTEGER(target)[counter + k] = i+1;
counter += thislen;
if (thislen > 0 || !droplevels) i++;
} else {
for (k=0; k<nrow; k++)
INTEGER(target)[nrow*j + k] = j+1;
}
}
setAttrib(target, R_ClassSymbol, mkString("factor"));
if (narm && droplevels) {
counter = 0;
for (j=0; j<lvalues; j++) {
if (length(VECTOR_ELT(idxkeep, j)) > 0) counter++;
}
} else counter = lvalues;
levels = PROTECT(allocVector(STRSXP, counter));
i = 0;
for (j=0; j<lvalues; j++) {
if (narm && droplevels) {
if (length(VECTOR_ELT(idxkeep, j)) > 0)
SET_STRING_ELT(levels, i++, STRING_ELT(dtnames, INTEGER(valuecols)[j]-1));
} else
SET_STRING_ELT(levels, j, STRING_ELT(dtnames, INTEGER(valuecols)[j]-1));
}
setAttrib(target, R_LevelsSymbol, levels);
UNPROTECT(1); // levels
if (LOGICAL(varfactor)[0] == FALSE)
target = asCharacterFactor(target);
SET_VECTOR_ELT(ans, lids, target);
UNPROTECT(1); // target
// generate idcols (left part)
for (i=0; i<lids; i++) {
counter = 0;
thiscol = VECTOR_ELT(DT, INTEGER(idcols)[i]-1);
size = SIZEOF(thiscol);
target = PROTECT(allocVector(TYPEOF(thiscol), totlen));
switch(TYPEOF(thiscol)) {
case REALSXP :
if (narm) {
for (j=0; j<lvalues; j++) {
thisidx = PROTECT(VECTOR_ELT(idxkeep, j));
thislen = length(thisidx);
for (k=0; k<thislen; k++)
REAL(target)[counter + k] = REAL(thiscol)[INTEGER(thisidx)[k]-1];
counter += thislen;
UNPROTECT(1); // thisidx
}
} else {
for (j=0; j<lvalues; j++)
memcpy((char *)DATAPTR(target)+j*nrow*size, (char *)DATAPTR(thiscol), nrow*size);
}
break;
case INTSXP :
if (narm) {
for (j=0; j<lvalues; j++) {
thisidx = PROTECT(VECTOR_ELT(idxkeep, j));
thislen = length(thisidx);
for (k=0; k<thislen; k++)
INTEGER(target)[counter + k] = INTEGER(thiscol)[INTEGER(thisidx)[k]-1];
counter += thislen;
UNPROTECT(1); // thisidx
}
} else {
for (j=0; j<lvalues; j++)
memcpy((char *)DATAPTR(target)+j*nrow*size, (char *)DATAPTR(thiscol), nrow*size);
}
break;
case LGLSXP :
if (narm) {
for (j=0; j<lvalues; j++) {
thisidx = PROTECT(VECTOR_ELT(idxkeep, j));
thislen = length(thisidx);
for (k=0; k<thislen; k++)
LOGICAL(target)[counter + k] = LOGICAL(thiscol)[INTEGER(thisidx)[k]-1];
counter += thislen;
UNPROTECT(1); // thisidx
}
} else {
for (j=0; j<lvalues; j++)
memcpy((char *)DATAPTR(target)+j*nrow*size, (char *)DATAPTR(thiscol), nrow*size);
}
break;
case STRSXP :
if (narm) {
for (j=0; j<lvalues; j++) {
thisidx = PROTECT(VECTOR_ELT(idxkeep, j));
thislen = length(thisidx);
for (k=0; k<thislen; k++)
SET_STRING_ELT(target, counter + k, STRING_ELT(thiscol, INTEGER(thisidx)[k]-1));
counter += thislen;
UNPROTECT(1); // thisidx
}
} else {
// SET_STRING_ELT for j=0 and memcpy for j>0, WHY?
// From assign.c's memcrecycle - only one SET_STRING_ELT per RHS item is needed to set generations (overhead)
for (k=0; k<nrow; k++) SET_STRING_ELT(target, k, STRING_ELT(thiscol, k));
for (j=1; j<lvalues; j++)
memcpy((char *)DATAPTR(target)+j*nrow*size, (char *)DATAPTR(target), nrow*size);
}
break;
case VECSXP :
for (j=0; j<lvalues; j++) {
for (k=0; k<nrow; k++) {
SET_VECTOR_ELT(target, j*nrow + k, VECTOR_ELT(thiscol, k));
}
}
break;
default : error("Unknown column type '%s' for column '%s' in 'data'", type2char(TYPEOF(thiscol)), CHAR(STRING_ELT(dtnames, INTEGER(idcols)[i]-1)));
}
copyMostAttrib(thiscol, target); // all but names,dim and dimnames. And if so, we want a copy here, not keepattr's SET_ATTRIB.
SET_VECTOR_ELT(ans, i, target);
UNPROTECT(1); // target
}
setAttrib(ans, R_NamesSymbol, ansnames);
UNPROTECT(protecti);
return(ans);
}
int main(int argc, char* argv[]) {
int sock; //Socket descriptor
struct sockaddr_in servAddr; //Echo server address
char* lineBuffer; //String to send to server
char* tempBuffer; //Temporary Buffer for Storage
char recvBuffer[RCVBUFSIZE];
int bytesRcvd, totalBytesRcvd; //Bytes read in single recv & total
FILE* in; //MEClient.txt, if passed
FILE* out; //MEClient.log, logfile of correspondance
struct hostent* he; //Used to get IP information from hostname
int usrAuth = -1;
char* token;
int i, doneSig;
if (argc < 2) { //Test for correct number of arguments
fprintf(stderr,"Usage: %s <Server Machine Name> [MEClient.txt]\n", argv[0]);
exit(1);
}
if (argc == 3) //If file is passed in
in = fopen(argv[2], "r"); //Create a file descriptor for the input file
else
in = stdin; //Otherwise, use Standard In
out = fopen("MEClient.log", "w"); //Open log file
if (in == NULL)
DieWithError("Error Opening File for Reading");
//Construct the Server Address Structure
memset(&servAddr, 0, sizeof(servAddr)); //Zero out structure
if((he = gethostbyname(argv[1])) == NULL)
DieWithError("Error resolving Server IP");
memcpy(&servAddr.sin_addr, he->h_addr_list[0], he->h_length); //Set address
servAddr.sin_family = AF_INET; //Family
servAddr.sin_port = htons(1100); //Well-Known Port
lineBuffer = (char*) malloc(LINEBUFSIZE);
tempBuffer = (char*) malloc(LINEBUFSIZE);
token = (char*) malloc(LINEBUFSIZE);
while(1) { //Run forever; quit function will eventually end the program
fgets(lineBuffer, LINEBUFSIZE, in); //Gets line from MEClient.txt
fprintf(out, lineBuffer); //Write command to log file
strncpy(tempBuffer, lineBuffer, LINEBUFSIZE);
token = strtok(tempBuffer, " ");
//Login Command
if(strncasecmp(token, "login", 5)==0) {
token = strtok(NULL, " "); //Token is user's name
//Log in user, and set authorization level
if(strncmp(token, "FEMA", 4)==0 || strncmp(token, "Query", 5)==0) {
if(usrAuth != -1)
puts("ERROR: User already logged in");
else{
//Create a reliable, stream socket using TCP
if ((sock = socket(AF_INET, SOCK_STREAM, 0))<0)
DieWithError("socket() failed");
//Establish a connection to the ME Server
if (connect(sock, (struct sockaddr*)&servAddr, sizeof(servAddr))<0)
DieWithError("connect() failed");
//Return 1 for FEMA, 0 for Query
usrAuth = ((strncmp(token, "FEMA", 4)==0) ? 1 : 0);
if (send(sock, lineBuffer, RCVBUFSIZE, 0)!= RCVBUFSIZE)
DieWithError("send() sent a different nuber of bytes than expected");
bytesRcvd = 0;
totalBytesRcvd = 0;
while (totalBytesRcvd < RCVBUFSIZE) {
//Receive up to the buffer size
if ((bytesRcvd = recv(sock, recvBuffer, RCVBUFSIZE, 0))<=0)
DieWithError("recv() failed or connection closed prematurely");
totalBytesRcvd += bytesRcvd; //Keep tally of total bytes
}
printf(recvBuffer); //Print server's response
fprintf(out, recvBuffer); //Write to log file
}
}
else
puts("ERROR: Invalid login name");
}
//Add / Update Command
else if ((strncasecmp(token, "add", 3)==0 || strncasecmp(token, "update", 6)==0) && usrAuth==1) {
strcpy(tempBuffer, lineBuffer);
if (checkVars(tempBuffer, 5)) {
if (send(sock, lineBuffer, RCVBUFSIZE, 0)!= RCVBUFSIZE)
DieWithError("send() sent a different nuber of bytes than expected");
bytesRcvd = 0;
totalBytesRcvd = 0;
while (totalBytesRcvd < RCVBUFSIZE) {
//Receive up to the buffer size
if ((bytesRcvd = recv(sock, recvBuffer, RCVBUFSIZE, 0))<=0)
DieWithError("recv() failed or connection closed prematurely");
totalBytesRcvd += bytesRcvd; //Keep tally of total bytes
}
printf(recvBuffer); //Print server's response
fprintf(out, recvBuffer); //Write to log file
}
else
puts("ERROR: Wrong number of variables.");
}
//Remove Command
else if (strncasecmp(token, "remove", 6)==0 && usrAuth==1) {
if (send(sock, lineBuffer, RCVBUFSIZE, 0)!= RCVBUFSIZE)
DieWithError("send() sent a different nuber of bytes than expected");
bytesRcvd = 0;
totalBytesRcvd = 0;
while (totalBytesRcvd < RCVBUFSIZE) {
//Receive up to the buffer size
if ((bytesRcvd = recv(sock, recvBuffer, RCVBUFSIZE, 0))<=0)
DieWithError("recv() failed or connection closed prematurely");
totalBytesRcvd += bytesRcvd; //Keep tally of total bytes
}
printf(recvBuffer); //Print server's response
fprintf(out, recvBuffer); //Write to log file
}
//Find / List / Locate Command
else if ((strncasecmp(token, "find", 4)==0 || strncasecmp(token, "list", 4)==0 || strncasecmp(token, "locate", 6)==0) && usrAuth!=-1) {
strcpy(tempBuffer, lineBuffer);
if(strncasecmp(token, "locate", 6)==0 && checkTooMany(tempBuffer, 2)==1) {
puts("ERROR: Wrong number of variables.");
fprintf(out, "ERROR: Wrong number of variables.\n");
continue;
}
if (send(sock, lineBuffer, RCVBUFSIZE, 0)!= RCVBUFSIZE)
DieWithError("send() sent a different nuber of bytes than expected");
doneSig = 1;
while(doneSig) {
bytesRcvd = 0;
totalBytesRcvd = 0;
while (totalBytesRcvd < RCVBUFSIZE) {
//Receive up to the buffer size
if ((bytesRcvd = recv(sock, recvBuffer, RCVBUFSIZE, 0))<=0)
DieWithError("recv() failed or connection closed prematurely");
totalBytesRcvd += bytesRcvd; //Keep tally of total bytes
}
if(strcasecmp(recvBuffer, "S: Search Complete.") == 0)
doneSig = 0; //Done Receiving
else {
printf(recvBuffer); //Print server's response
fprintf(out, recvBuffer); //Write to log file
}
}
}
//Quit Command
else if (strncasecmp(token, "quit", 4)==0 && usrAuth!=-1) {
token = strtok(NULL, " "); //Token is EOF marker (if passed)
usrAuth = -1; //Reset authentication level
if (send(sock, lineBuffer, RCVBUFSIZE, 0)!= RCVBUFSIZE)
DieWithError("send() sent a different nuber of bytes than expected");
for(i=0; i<3; i++) { //Receive and print two messages from the server
bytesRcvd = 0;
totalBytesRcvd = 0;
while (totalBytesRcvd < RCVBUFSIZE) {
//Receive up to the buffer size
if ((bytesRcvd = recv(sock, recvBuffer, RCVBUFSIZE, 0))<=0)
DieWithError("recv() failed or connection closed prematurely");
totalBytesRcvd += bytesRcvd; //Keep tally of total bytes
}
printf(recvBuffer);
fprintf(out, recvBuffer); //Write to log file
}
if (token != NULL && strncmp(token, "EOF", 3)==0) {
for(i=0; i<2; i++) { //Receive and print two messages from the server
bytesRcvd = 0;
totalBytesRcvd = 0;
while (totalBytesRcvd < RCVBUFSIZE) {
//Receive up to the buffer size
if ((bytesRcvd = recv(sock, recvBuffer, RCVBUFSIZE, 0))<=0)
DieWithError("recv() failed or connection closed prematurely");
totalBytesRcvd += bytesRcvd; //Keep tally of total bytes
}
printf(recvBuffer);
fprintf(out, recvBuffer); //Write to log file
}
close(sock);
fclose(in);
fclose(out);
exit(0); //If EOF string passed, we're done
}
else
close(sock);
}
else { //User either entered a bad command, or they
puts("ERROR: Bad Command");//had the wrong authentication level
fprintf(out, "ERROR: Bad Command\n");
}
}
}
