I've used this repository which is a Boost.Asio like structure that implements messaging and double ended queue and client and server communication in c++.
The problem is, it written for windows and in the file SimpleClient.cpp, reads keypress from command line, now I want to read command line keypress on Ubuntu terminal therefore I found this question on the stack which uses fd_set and I put it in a function and then in the SimpleClient file:
void task1_getkeyboard(CustomClient *c)
{
struct termios oldSettings, newSettings;
tcgetattr( fileno( stdin ), &oldSettings );
newSettings = oldSettings;
newSettings.c_lflag &= (~ICANON & ~ECHO);
tcsetattr( fileno( stdin ), TCSANOW, &newSettings );
fd_set set;
struct timeval tv;
tv.tv_sec = 5;
tv.tv_usec = 0;
FD_ZERO( &set );
FD_SET( fileno( stdin ), &set );
int res = select( fileno( stdin )+1, &set, NULL, NULL, &tv );
char cinif;
if( res > 0 )
{
read( fileno( stdin ), &cinif, 1 );
//printf( "Input available %c\n" , cinif);
if ( cinif == 'p' ) {
c->PingServer();
cinif = '\0';
}
}
else if( res < 0 )
{
perror( "select error" );
//break;
}
else
{
printf( "Select timeout\n" );
}
}
and I've put the function inside the while loop :
...
while (!bQuit)
{
task1_getkeyboard(&c);
if (c.IsConnected())
{
...
The problem is , It holds back the terminal until its timeout, for example on the successful connection, Client terminal should print Server Accepted Connection but it waits for 5 second(fd_set timeout).How can I fix this?
