void BenchRandomDigit(void(*f)(double, char*), const char* fname, FILE* fp) {
printf("Benchmarking randomdigit %-20s ... ", fname);
char buffer[256];
double minDuration = std::numeric_limits<double>::max();
double maxDuration = 0.0;
for (int digit = 1; digit <= RandomDigitData::kMaxDigit; digit++) {
double* data = RandomDigitData::GetData(digit);
size_t n = RandomDigitData::kCount;
double duration = std::numeric_limits<double>::max();
for (unsigned trial = 0; trial < kTrial; trial++) {
Timer timer;
timer.Start();
for (unsigned iteration = 0; iteration < kIterationPerDigit; iteration++) {
for (size_t i = 0; i < n; i++) {
f(data[i], buffer);
//if (trial == 0 && iteration == 0 && i == 0)
// printf("%.17g -> %s\n", data[i], buffer);
}
}
timer.Stop();
duration = std::min(duration, timer.GetElapsedMilliseconds());
}
duration *= 1e6 / (kIterationPerDigit * n); // convert to nano second per operation
minDuration = std::min(minDuration, duration);
maxDuration = std::max(maxDuration, duration);
fprintf(fp, "randomdigit,%s,%d,%f\n", fname, digit, duration);
}
printf("[%8.3fns, %8.3fns]\n", minDuration, maxDuration);
}
void BenchRandom(void(*f)(double, char*), const char* fname, FILE* fp) {
printf("Benchmarking random %-20s ... ", fname);
char buffer[256];
double* data = RandomData::GetData();
size_t n = RandomData::kCount;
double duration = std::numeric_limits<double>::max();
for (unsigned trial = 0; trial < kTrial; trial++) {
Timer timer;
timer.Start();
for (unsigned iteration = 0; iteration < kIterationForRandom; iteration++)
for (size_t i = 0; i < n; i++)
f(data[i], buffer);
timer.Stop();
duration = std::min(duration, timer.GetElapsedMilliseconds());
}
duration *= 1e6 / (kIterationForRandom * n); // convert to nano second per operation
fprintf(fp, "random,%s,0,%f\n", fname, duration);
printf("%8.3fns\n", duration);
}
void BenchSequential(void(*f)(double, char*), const char* fname, FILE* fp) {
printf("Benchmarking sequential %-20s ... ", fname);
char buffer[256] = { '\0' };
double minDuration = std::numeric_limits<double>::max();
double maxDuration = 0.0;
int64_t start = 1;
for (int digit = 1; digit <= 17; digit++) {
int64_t end = start * 10;
double duration = std::numeric_limits<double>::max();
for (unsigned trial = 0; trial < kTrial; trial++) {
int64_t v = start;
Random r;
v += ((int64_t(r()) << 32) | int64_t(r())) % start;
double sign = 1;
Timer timer;
timer.Start();
for (unsigned iteration = 0; iteration < kIterationPerDigit; iteration++) {
double d = v * sign;
f(d, buffer);
//printf("%.17g -> %s\n", d, buffer);
sign = -sign;
v += 1;
if (v >= end)
v = start;
}
timer.Stop();
duration = std::min(duration, timer.GetElapsedMilliseconds());
}
duration *= 1e6 / kIterationPerDigit; // convert to nano second per operation
minDuration = std::min(minDuration, duration);
maxDuration = std::max(maxDuration, duration);
fprintf(fp, "%s_sequential,%d,%f\n", fname, digit, duration);
start = end;
}
printf("[%8.3fns, %8.3fns]\n", minDuration, maxDuration);
}
bool CGUL::Network::HTTPRequest::PerformRequest(UInt32 timeout)
{
response = "";
responseHead = "";
responseBody = "";
if (!sock->IsConnected())
{
throw NetworkException(NetworkExceptionCode::FAILED_HTTP_REQUEST, NetworkExceptionReason::SOCKET_INVALID);
}
sock->Send((const void*)request.GetCString(), request.GetSize());
char buffer[1024];
// Wait for the response.
Timer timeoutTimer;
timeoutTimer.Start();
while (sock->Peek(buffer, 1) == 0 && (timeoutTimer.GetElapsedMilliseconds() < timeout || timeout == 0))
{
if (!sock->IsConnected())
{
throw NetworkException(NetworkExceptionCode::FAILED_HTTP_REQUEST, NetworkExceptionReason::SOCKET_INVALID);
}
}
timeoutTimer.Stop();
if (timeoutTimer.GetElapsedMilliseconds() >= timeout && timeout != 0)
{
throw NetworkException(NetworkExceptionCode::FAILED_HTTP_REQUEST, NetworkExceptionReason::TIMEOUT);
}
//Get the headers length.
int headSize = 0;
sock->Peek(buffer, 1024);
CGUL::String bufferString = buffer;
headSize = bufferString.FindFirstOf("\r\n\r\n")+4;
//Get the reponse's head.
char* bufferHead = new char[headSize];
sock->Receive(bufferHead, headSize);
responseHead += bufferHead;
//Parse the Response Header
ParseResponseHead();
//Get the reponse's body.
int amount = 0;
switch (header.transferEncoding)
{
case HTTPTransferEncoding::CONTENT_LENGTH:
{
unsigned int count = 0;
while (sock->IsConnected())
{
unsigned int size = 1024;
if (count + size > header.contentLength)
{
size = header.contentLength - count;
}
char* buff = new char[size];
amount = sock->Receive((void*)buff, size);
count += amount;
if (amount > 0)
{
responseBody += EncodeString(buff, size);
}
if (count >= header.contentLength)
{
break;
}
}
break;
}
case HTTPTransferEncoding::CHUNKED:
{
char * sizeBuffer = new char[64];
while (sock->IsConnected())
{
//Get the size.
amount = sock->Peek(sizeBuffer, 64);
if (amount <= 0)
{
break;
}
String sizeString = "";
for (int i = 0; i < amount; i++)
{
if (sizeBuffer[i] == '\r')
{
if (sizeBuffer[i+1] == '\n')
{
break;
}
throw NetworkException(NetworkExceptionCode::FAILED_HTTP_REQUEST, NetworkExceptionReason::UNKNOWN);
}
else
{
sizeString += sizeBuffer[i];
}
}
//Convert from hex to decimal
unsigned int size = 0;
for (unsigned j = 0; j < sizeString.GetLength(); j++)
{
char code = sizeString[sizeString.GetLength()-j-1];
if (code >= 48 && code <= 57) //Number
{
size += (code - 48)*((j == 0) ? 1 : 16*j);
}
if (code >= 65 && code <= 70) //A-F
{
size += (code - 55)*((j == 0) ? 1 : 16*j);
}
if (code >= 97 && code <= 102) //a-f
{
size += (code - 87)*((j == 0) ? 1 : 16*j);
}
}
sock->Receive(sizeBuffer, sizeString.GetLength()+2);
if (size == 0) //If the size is 0, then we are done
{
break;
}
size += 2;
//Otherwise receive the next chunk and add a new line (\r\n)
char* buff = new char[size];
amount = sock->Receive((void*)buff, size);
responseBody += EncodeString(buff, size);
}
break;
}
default:
{
throw NetworkException(NetworkExceptionCode::FAILED_HTTP_REQUEST, NetworkExceptionReason::UNKNOWN_TRANSFER_ENCODING);
break;
}
}
response = responseHead + responseBody;
if (header.connection == Network::HTTPConnections::CLOSE)
{
Close();
}
return true;
}