INVALID_SOCKET 149 ext/net/gauche/net.h #define SOCKET_CLOSED(fd) ((fd) == INVALID_SOCKET) INVALID_SOCKET 150 ext/net/gauche/net.h #define SOCKET_INVALID(fd) ((fd) == INVALID_SOCKET) INVALID_SOCKET 56 ext/net/net.c sock->fd = INVALID_SOCKET; INVALID_SOCKET 136 ext/net/net.c s->fd = INVALID_SOCKET; INVALID_SOCKET 481 ext/net/net.c r = setsockopt(INVALID_SOCKET, SOL_SOCKET,