libaitio/src/bpf.c - diff

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version 1.1.2.17, 2013/06/26 15:04:02	version 1.1.2.18, 2013/06/26 15:31:17
Line 272 io_etherRecv(int eth, void * __restrict buf, size_t bu	Line 272 io_etherRecv(int eth, void * __restrict buf, size_t bu
#ifdef __FreeBSD__	#ifdef __FreeBSD__
struct bpf_zbuf bz;	struct bpf_zbuf bz;
struct bpf_zbuf_header *bzh;	struct bpf_zbuf_header *bzh;
	#else
	if (zcbuf) {
	io_SetErr(ENOTSUP, "bpf zero copy buffer mode is not supported");
	return -1;
	}
#endif	#endif

if (!buf \|\| !buflen) {	if (!buf \|\| !buflen) {
Line 291 io_etherRecv(int eth, void * __restrict buf, size_t bu	Line 296 io_etherRecv(int eth, void * __restrict buf, size_t bu
bzh = (struct bpf_zbuf_header*) zcache;	bzh = (struct bpf_zbuf_header*) zcache;
memcpy(buf, zcache + sizeof(struct bpf_zbuf_header),	memcpy(buf, zcache + sizeof(struct bpf_zbuf_header),
MIN(buflen, rlen));	MIN(buflen, rlen));
ackZCbuf(bzh);
}	}
if (!rlen && !ioctl(eth, BIOCROTZBUF, &bz)) {	if (!rlen && !ioctl(eth, BIOCROTZBUF, &bz))
bzh = (struct bpf_zbuf_header*) bz.bz_bufa;	continue;
if (bzh && chkZCbuf(bzh)) {
rlen = bz.bz_buflen;
memcpy(buf, bz.bz_bufa + sizeof(struct bpf_zbuf_header),
MIN(buflen, rlen));
}
}
} while (0);	} while (0);
#else	#else
rlen = -1;	rlen = -1;