diff options
| author | Ivan Nardi <12729895+IvanNardi@users.noreply.github.com> | 2024-03-15 10:12:51 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-03-15 10:12:51 +0100 |
| commit | 231748bb0e6f274eb91824bf1e3b1693370ec0de (patch) | |
| tree | c770ac00021102d87d13f1af87aa05d2459699f1 /src/lib/protocols/mining.c | |
| parent | 97fae6e00ad5b529ecc94a0bde2328da43426080 (diff) | |
LRU cache: move to 64 bits long keys (#2346)
Tradeoff between key comparison efficiency (i.e. no `memcmp`) and key
length.
At least in the ipv4 cases, we have no more different entries with the
same key.
Diffstat (limited to 'src/lib/protocols/mining.c')
| -rw-r--r-- | src/lib/protocols/mining.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/lib/protocols/mining.c b/src/lib/protocols/mining.c index e6cdcf487..22d215927 100644 --- a/src/lib/protocols/mining.c +++ b/src/lib/protocols/mining.c @@ -28,14 +28,14 @@ /* ************************************************************************** */ -u_int32_t mining_make_lru_cache_key(struct ndpi_flow_struct *flow) { - u_int32_t key; +u_int64_t mining_make_lru_cache_key(struct ndpi_flow_struct *flow) { + u_int64_t key; /* network byte order */ if(flow->is_ipv6) - key = ndpi_quick_hash(flow->c_address.v6, 16) + ndpi_quick_hash(flow->s_address.v6, 16); + key = (ndpi_quick_hash64((const char *)flow->c_address.v6, 16) << 32) | (ndpi_quick_hash64((const char *)flow->s_address.v6, 16) & 0xFFFFFFFF); else - key = flow->c_address.v4 + flow->s_address.v4; + key = ((u_int64_t)flow->c_address.v4 << 32) | flow->s_address.v4; return key; } |