Mercurial > hg > nginx
changeset 8351:dd84c9cef75b quic
Improved ngx_quic_build_int() code and readability.
The function now generates somewhat shorter assembler after inlining.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Wed, 22 Apr 2020 14:52:16 +0300 |
parents | 47dac6e0521a |
children | d73516830236 |
files | src/event/ngx_event_quic_transport.c |
diffstat | 1 files changed, 8 insertions(+), 14 deletions(-) [+] |
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--- a/src/event/ngx_event_quic_transport.c Tue Apr 21 17:52:32 2020 +0300 +++ b/src/event/ngx_event_quic_transport.c Wed Apr 22 14:52:16 2020 +0300 @@ -238,29 +238,23 @@ ngx_quic_build_int(u_char **pos, uint64_t value) { u_char *p; - ngx_uint_t len;//, len2; + ngx_uint_t bits, len; p = *pos; - len = 0; + bits = 0; - while (value >> ((1 << len) * 8 - 2)) { - len++; + while (value >> ((8 << bits) - 2)) { + bits++; } - *p = len << 6; + len = (1 << bits); -// len2 = - len = (1 << len); - len--; - *p |= value >> (len * 8); - p++; - - while (len) { - *p++ = value >> ((len-- - 1) * 8); + while (len--) { + *p++ = value >> (len * 8); } + **pos |= bits << 6; *pos = p; -// return len2; }