TCP_KEEPALIVE     269 src/unix/tcp.c #if defined(TCP_KEEPALIVE) && !defined(__sun)
TCP_KEEPALIVE     270 src/unix/tcp.c   if (on && setsockopt(fd, IPPROTO_TCP, TCP_KEEPALIVE, &delay, sizeof(delay)))
TCP_KEEPALIVE      71 src/win/tcp.c                             TCP_KEEPALIVE,
TCP_KEEPALIVE      41 src/win/winsock.h #ifndef TCP_KEEPALIVE