rb_w32_send       255 include/ruby/win32.h extern int    WSAAPI rb_w32_send(int, const char *, int, int);
rb_w32_send       656 include/ruby/win32.h #define send(s, b, l, f)	rb_w32_send(s, b, l, f)
rb_w32_send      6950 win32/win32.c  	return rb_w32_send(fd, buf, size, 0);