int MySocket::Recv(int s, void *buf, int bytes,
int seconds, int useconds, int flags)
// Receive a block of data from a specified socket and do not return
// until all the bytes have been read or the timeout value has been
// exceeded. Returns the total number of bytes received or -1 if an
// error occurs.
{
bytes_read = 0; // Reset the byte counter
int num_read = 0; // Actual number of bytes read
int num_req = (int)bytes; // Number of bytes requested
char *p = (char *)buf; // Pointer to the buffer
while(bytes_read < bytes) { // Loop until the buffer is full
if(!ReadSelect(s, seconds, useconds)) {
socket_error = MySOCKET_REQUEST_TIMEOUT;
return -1; // Exceeded the timeout value
}
if((num_read = recv(s, p, num_req-bytes_read, flags)) > 0) {
bytes_read += num_read; // Increment the byte counter
p += num_read; // Move the buffer pointer for the next read
}
if(num_read < 0) {
socket_error = MySOCKET_RECEIVE_ERROR;
return -1; // An error occurred during the read
}
}
return bytes_read;
}
int MySocket::RecvFrom(int s, sockaddr_in *sa, void *buf,
int bytes, int seconds, int useconds, int flags)
// Receive a block of data from a remote datagram socket
// and do not return until all the bytes have been read
// or the timeout value has been exceeded. Returns the total
// number of bytes received or -1 if an error occurs.
{
// Length of client address
int addr_size = (int)sizeof(sockaddr_in);
bytes_read = 0; // Reset the byte counter
int num_read = 0; // Actual number of bytes read
int num_req = (int)bytes; // Number of bytes requested
char *p = (char *)buf; // Pointer to the buffer
while(bytes_read < bytes) { // Loop until the buffer is full
if(!ReadSelect(s, seconds, useconds)) {
socket_error = MySOCKET_REQUEST_TIMEOUT;
return -1; // Exceeded the timeout value
}
if((num_read = recvfrom(s, p, num_req-bytes_read, flags, (struct sockaddr *)sa, &addr_size)) > 0) {
bytes_read += num_read; // Increment the byte counter
p += num_read; // Move the buffer pointer for the next read
}
if(num_read < 0) {
socket_error = MySOCKET_RECEIVE_ERROR;
return -1; // An error occurred during the read
}
}
return bytes_read;
}
FdArr_t CFdSelector_F::ReadSelect(U32* pdwMilliSeconds)
{
struct timeval time;
time.tv_sec = *pdwMilliSeconds / 1000;
time.tv_usec = ( *pdwMilliSeconds % 1000 ) * 1000;
FdArr_t fdArrReturn = ReadSelect( &time );
*pdwMilliSeconds = (time.tv_sec * 1000) + (time.tv_usec / 1000);
return fdArrReturn;
}
int gxsSMTPClient::WaitForReply()
// Returns false if a reply time is longer then the timeout values.
{
return ReadSelect(gxsocket, time_out_sec, time_out_usec);
}
