The FreeRTOS kernel is now an MIT licensed AWS open source project, and these pages are being updated accordingly.

FreeRTOS+POSIX:
POSIX API for FreeRTOS

FreeRTOS+FAT:
Thread aware file system

FreeRTOS_issocketconnected()

[FreeRTOS+TCP API Reference]

FreeRTOS_sockets.h

BaseType_t FreeRTOS_issocketconnected( Socket_t xSocket );

Tests to see if a socket is connected.

Parameters:

xSocket

The socket being queried.

Returns:

If the socket referenced by the xSocket parameter is not a TCP socket then -pdFREERTOS_ERRNO_EINVAL is returned.

If the socket is in the Established or a FIN wait state then pdTRUE is returned. Otherwise pdFALSE is returned;