SHF_UNBUF
SHF_UNBUF : 0;
shf->wbsize = sflags & SHF_UNBUF ? 0 : bsize;
int bsize = sflags & SHF_UNBUF ? (sflags & SHF_RD ? 1 : 0) : SHF_BSIZE;
shf->wbsize = sflags & SHF_UNBUF ? 0 : bsize;
int bsize = sflags & SHF_UNBUF ? (sflags & SHF_RD ? 1 : 0) : SHF_BSIZE;
if (shf->flags & SHF_UNBUF) {
int bsize = sflags & SHF_UNBUF ? (sflags & SHF_RD ? 1 : 0) : SHF_BSIZE;