This variable determines whether the Nagle algorithm is used when sending socket buffer messages. This algorithm automatically delays sending small socket packets for a short period of time in order to increase network efficiency by sending them in a batch. Setting this variable to the default of 1 (on, true, yes) causes socket packets to be sent immediately (not using the algorithm), while setting this variable to "0" (off, false, no) causes socket packets to be delayed (using the algorithm). The TCP-NODELAY socket option is used as follows:
setsockopt(s, IPPROTO_TCP, TCP_NODELAY, &tcp_nodelay, sizeof(int));
The value of this variable is sent to a lower-level socket layer not controlled by ACUCOBOL-GT. It may not have any noticeable effect.