diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2021-10-11 12:16:21 +0000 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2021-10-11 12:16:21 +0000 |
| commit | ad1ab7089d9f046080450e59724bef2c98fc8f5a (patch) | |
| tree | 58100a825dcfcef1d969788e7d54d1bdbeb10789 /sys/src/9/ip | |
| parent | 5484260b42b0a4061444670e812aff3973cc79fb (diff) | |
devip: add comment to ip.h explaining Routehint struct
Diffstat (limited to 'sys/src/9/ip')
| -rw-r--r-- | sys/src/9/ip/ip.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/src/9/ip/ip.h b/sys/src/9/ip/ip.h index e9f6fcf18..0635e1f0e 100644 --- a/sys/src/9/ip/ip.h +++ b/sys/src/9/ip/ip.h @@ -164,6 +164,12 @@ struct Ip4hdr uchar dst[4]; /* IP destination */ }; +/* + * cache for route and arp table lookups. + * one per Conv so conversations with a + * fixed target can avoid the per packet + * lookup overhead. + */ struct Routehint { Route *r; /* last route used */ |