Mercurial > hg > nginx-quic
annotate auto/lib/libatomic/conf @ 8441:81d491f0dc8c quic
QUIC: unroll and inline ngx_quic_varint_len()/ngx_quic_build_int().
According to profiling, those two are among most frequently called,
so inlining is generally useful, and unrolling should help with it.
Further, this fixes undefined behaviour seen with invalid values.
Inspired by Yu Liu.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Sat, 22 May 2021 18:40:45 +0300 |
parents | d620f497c50f |
children |
rev | line source |
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3363 | 1 |
2 # Copyright (C) Igor Sysoev | |
4412 | 3 # Copyright (C) Nginx, Inc. |
3363 | 4 |
5 | |
6 if [ $NGX_LIBATOMIC != YES ]; then | |
7 | |
8 have=NGX_HAVE_LIBATOMIC . auto/have | |
9 CORE_INCS="$CORE_INCS $NGX_LIBATOMIC/src" | |
10 LINK_DEPS="$LINK_DEPS $NGX_LIBATOMIC/src/libatomic_ops.a" | |
11 CORE_LIBS="$CORE_LIBS $NGX_LIBATOMIC/src/libatomic_ops.a" | |
12 | |
13 else | |
14 | |
15 ngx_feature="atomic_ops library" | |
16 ngx_feature_name=NGX_HAVE_LIBATOMIC | |
3366 | 17 ngx_feature_run=yes |
3378
5d17022a1e88
fix libatomic usage on arm, cris, hppa, m68k, and sparc platforms
Igor Sysoev <igor@sysoev.ru>
parents:
3366
diff
changeset
|
18 ngx_feature_incs="#define AO_REQUIRE_CAS |
5d17022a1e88
fix libatomic usage on arm, cris, hppa, m68k, and sparc platforms
Igor Sysoev <igor@sysoev.ru>
parents:
3366
diff
changeset
|
19 #include <atomic_ops.h>" |
3363 | 20 ngx_feature_path= |
21 ngx_feature_libs="-latomic_ops" | |
3366 | 22 ngx_feature_test="long n = 0; |
23 if (!AO_compare_and_swap(&n, 0, 1)) | |
24 return 1; | |
25 if (AO_fetch_and_add(&n, 1) != 1) | |
26 return 1; | |
27 if (n != 2) | |
28 return 1; | |
3363 | 29 AO_nop();" |
30 . auto/feature | |
31 | |
32 if [ $ngx_found = yes ]; then | |
33 CORE_LIBS="$CORE_LIBS $ngx_feature_libs" | |
34 else | |
35 | |
36 cat << END | |
37 | |
38 $0: error: libatomic_ops library was not found. | |
39 | |
40 END | |
41 exit 1 | |
42 fi | |
43 fi |