Hello,

Do exists any way using the fpsockets family to know if a "fprecv" will block ? In other words do exists a call that return the amount of bytes that are ready to be read/received ?

In the case the answer is no, does fpc has another family of socket functions ? I know synapse, lNet, ... but I wish to use only fpc packages.

Hello,

You have the function "FpIOCtl" with the option FIONREAD, I use it to read the amount of data of the reception buffer before call "fprecv" but if I remember correctly this only work when you configure the socket as asynchronous.

Best Regards.

Victor Campillo wrote

You have the function "FpIOCtl" with the option FIONREAD, I use it to read the amount of data of the reception buffer before call "fprecv" but if I remember correctly this only work when you configure the socket as asynchronous.

Hello,

fpioctl seems to not be implemented in Windows, but anyway your help give me a clue about a possible solution to my problem. Thank you.

Hello,

In windows you have the function "ioctlsocket" in the unit WinSock2 which do the same as "fpioctl", anyway I am glad that you find a path to the solution.

Best Regards.