Mercurial > hg > nginx-quic
view src/core/ngx_murmurhash.c @ 8706:bb1d1d9d76e2 quic
QUIC: removed excessive check.
The c->udp->dgram may be NULL only if the quic connection was just
created: the ngx_event_udp_recvmsg() passes information about datagrams
to existing connections by providing information in c->udp.
If case of a new connection, c->udp is allocated by the QUIC code during
creation of quic connection (it uses c->sockaddr to initialize qsock->path).
Thus the check for qsock->path is excessive and can be read wrong, assuming
that other options possible, leading to warnings from clang static analyzer.
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Wed, 01 Dec 2021 18:33:29 +0300 |
parents | f38647c651a8 |
children |
line wrap: on
line source
/* * Copyright (C) Austin Appleby */ #include <ngx_config.h> #include <ngx_core.h> uint32_t ngx_murmur_hash2(u_char *data, size_t len) { uint32_t h, k; h = 0 ^ len; while (len >= 4) { k = data[0]; k |= data[1] << 8; k |= data[2] << 16; k |= data[3] << 24; k *= 0x5bd1e995; k ^= k >> 24; k *= 0x5bd1e995; h *= 0x5bd1e995; h ^= k; data += 4; len -= 4; } switch (len) { case 3: h ^= data[2] << 16; /* fall through */ case 2: h ^= data[1] << 8; /* fall through */ case 1: h ^= data[0]; h *= 0x5bd1e995; } h ^= h >> 13; h *= 0x5bd1e995; h ^= h >> 15; return h; }