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| author | jmg <jmg@FreeBSD.org> | 2003-08-05 07:12:49 +0000 |
|---|---|---|
| committer | jmg <jmg@FreeBSD.org> | 2003-08-05 07:12:49 +0000 |
| commit | ed1d8121c2d1b33f2c886c475109ef3f556b90c6 (patch) | |
| tree | 258f37b0d41286f68a5be4b2d848607075e81ff0 /sys/net/bpfdesc.h | |
| parent | d0c4c329b1946b004bffc0036516aaf3bcd1d928 (diff) | |
| download | FreeBSD-src-ed1d8121c2d1b33f2c886c475109ef3f556b90c6.zip FreeBSD-src-ed1d8121c2d1b33f2c886c475109ef3f556b90c6.tar.gz | |
add support for using kqueue to watch bpf sockets.
Submitted by: Brian Buchanan of nCircle, Inc.
Tested on: i386 and sparc64
Diffstat (limited to 'sys/net/bpfdesc.h')
| -rw-r--r-- | sys/net/bpfdesc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/net/bpfdesc.h b/sys/net/bpfdesc.h index fe059cd..73dcc90 100644 --- a/sys/net/bpfdesc.h +++ b/sys/net/bpfdesc.h @@ -104,6 +104,12 @@ struct bpf_d { #define BPFD_LOCK(bd) mtx_lock(&(bd)->bd_mtx) #define BPFD_UNLOCK(bd) mtx_unlock(&(bd)->bd_mtx) +/* Test whether a BPF is ready for read(). */ +#define bpf_ready(bd) \ + ((bd)->bd_hlen != 0 || \ + (((bd)->bd_immediate || (bd)->bd_state == BPF_TIMED_OUT) && \ + (bd)->bd_slen != 0)) + /* * Descriptor associated with each attached hardware interface. */ |
