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Improved ngx_quic_build_int() code and readability.

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The function now generates somewhat shorter assembler after inlining.
This commit is contained in:
Sergey Kandaurov 2020-04-22 14:52:16 +03:00
parent 9275f06a57
commit db90ddcb9e
1 changed files with 8 additions and 14 deletions
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22
src/event/ngx_event_quic_transport.c
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@ -238,29 +238,23 @@ static void
ngx_quic_build_int(u_char **pos, uint64_t value) ngx_quic_build_int(u_char **pos, uint64_t value)
{ {
u_char *p; u_char *p;
ngx_uint_t len;//, len2; ngx_uint_t bits, len;
p = *pos; p = *pos;
len = 0; bits = 0;
while (value >> ((1 << len) * 8 - 2)) { while (value >> ((8 << bits) - 2)) {
len++; bits++;
} }
*p = len << 6; len = (1 << bits);
// len2 = while (len--) {
len = (1 << len); *p++ = value >> (len * 8);
len--;
*p |= value >> (len * 8);
p++;
while (len) {
*p++ = value >> ((len-- - 1) * 8);
} }
**pos |= bits << 6;
*pos = p; *pos = p;
// return len2;
} }