Dead loop in fins_tcp_recv()

[shuicuen]

Using finslib_tcp_connect() connecting PLC, Often the program Dead loop in fins_tcp_recv（）

else if ( recv_len < 0 ) { if ( errno == EAGAIN ) {

			finslib_milli_second_sleep( 10 );
			continue;
		}

[lammertb]

When the connection terminates or times out, this loop should end eventually. On which operating system and with which compiler suite do you experience the problems?

[shuicuen]

Thank you for your reply. I compiled it with vs2013 compiler in win10 system

[lammertb]

I'll change the code somewhat to make it possible to exit the loop when a timeout is reached.

[elfive]

I'll change the code somewhat to make it possible to exit the loop when a timeout is reached.

Hi there, I also experienced this problem when server node is offline after tcp connected. and I don't know how to use the fins_sys_tp::timeout variable is there any document describe it's usage?

[lammertb]

Does your problem also occur on a Windows based system, or in another environment?

fins_sys_tp::timeout is set internally based on the the value of FINS_TIMEOUT. It uses a monotonic clock in the system. This clock is provided by the finslib_monotonic_sec_timer() function. The implementation is operating system and hardware dependent.

[elfive]

Yes, it’s running on Windows 10 with both VS2005 and VS2015