RA_WINSIZE_MAX
if (rasize > RA_WINSIZE_MAX) {
rasize = RA_WINSIZE_MAX;
ra->ra_winsize = MIN(RA_WINSIZE_MAX, ra->ra_winsize + reqsize);
if (size > RA_WINSIZE_MAX) {
size = RA_WINSIZE_MAX;
#define RA_WINSIZE_SEQENTIAL RA_WINSIZE_MAX /* fixed window size used for