VC++, About "accept" function timeout of question!

VC++, About "accept" function timeout of question! - Printable Version

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+--- Thread: VC++, About "accept" function timeout of question! (/Thread-VC-About-accept-function-timeout-of-question)

VC++, About "accept" function timeout of question! - anle - 11-22-2013

I want to achieve "accept" function can be timeout. However, after the success of the new connection will be received within the specified timeout off, and I would like to receive new connections can continue to connect.

next is my code:

PHP Code:
......
//Set nonblocking mode connection
unsigned long ul=1;
int ret=ioctlsocket(destsock,FIONBIO,(unsigned long*)&ul);
if(ret==SOCKET_ERROR)
{
    closesocket(destsock);
    return ;
}
//Set accept timeout
fd_set aptset;
struct timeval timeout;
FD_ZERO(&aptset);
FD_SET(destsock,&aptset);
timeout.tv_sec=30;  //after 30 second timeout
timeout.tv_usec=0;
int i=0;
while(1)
{
    int ret=select(destsock+1,&aptset,NULL,NULL,&timeout);
    if(ret==0) //has timeout
    {
        i++;
        continue;
    }
    else if(FD_ISSET(destsock,&aptset))
    {
        if((newsock=accept(destsock,(struct sockaddr *)&client2,&size2))<0)
        {
            closesocket(destsock);
            i=0;
            break;
        }
        i++;
        break;
    }
    else
    {
        i=0;
        closesocket(destsock);
        break;
    }
}
ul=0;
ret=ioctlsocket(destsock,FIONBIO,(unsigned long*)&ul);
if(i<=0) return ;

while(1)
{
    ......
   result=select(newsock+1,&readfd,&writefd,NULL,&timeset);  //timeset is 60 seconds timeout
   if(result<0 && errno!=EINTR)
   {   [color=#FF0000]//My problems right here,at 30 seconds then abnormal,why?[/color]
       break;
   }
   else if(...)
   {...}
   else
   {...}

   if(FD_ISSET(newsock,&readfd))
   {...}
}
...... 

sorry, my english very poor Sad

[/code]

PHP Code:
......
//Set nonblocking mode connection
unsigned long ul=1;
int ret=ioctlsocket(destsock,FIONBIO,(unsigned long*)&ul);
if(ret==SOCKET_ERROR)
{
    closesocket(destsock);
    return ;
}
//Set accept timeout
fd_set aptset;
struct timeval timeout;
FD_ZERO(&aptset);
FD_SET(destsock,&aptset);
timeout.tv_sec=30;  //after 30 second timeout
timeout.tv_usec=0;
int i=0;
while(1)
{
    int ret=select(destsock+1,&aptset,NULL,NULL,&timeout);
    if(ret==0) //has timeout
    {
        i++;
        continue;
    }
    else if(FD_ISSET(destsock,&aptset))
    {
        if((newsock=accept(destsock,(struct sockaddr *)&client2,&size2))<0)
        {
            closesocket(destsock);
            i=0;
            break;
        }
        i++;
        break;
    }
    else
    {
        i=0;
        closesocket(destsock);
        break;
    }
}
ul=0;
ret=ioctlsocket(destsock,FIONBIO,(unsigned long*)&ul);
if(i<=0) return ;

while(1)
{
    ......
   result=select(newsock+1,&readfd,&writefd,NULL,&timeset);  //timeset is 60 seconds timeout
   if(result<0 && errno!=EINTR)
   {   [color=#FF0000]//My problems right here,at 30 seconds then abnormal,why?[/color]
       break;
   }
   else if(...)
   {...}
   else
   {...}

   if(FD_ISSET(newsock,&readfd))
   {...}
}
...... 

sorry, my english very poor Sad

[/code]

RE: VC++, About "accept" function timeout of question! - CPlus - 11-23-2013

If am not mistaken the value is in microseconds.

Code:
u_long on = 1;
timeval tv = {0, 900000};      //timeout value in microseconds
fd_set fds;
FD_ZERO(&fds);

RE: VC++, About "accept" function timeout of question! - anle - 11-24-2013

I don't think this is reason, because my others timeout coding is no abnormal.