annotate src/os/unix/ngx_sunpro_sparc64.il @ 7948:a2613fc1bce5

Fixed sendfile() limit handling on Linux. On Linux starting with 2.6.16, sendfile() silently limits all operations to MAX_RW_COUNT, defined as (INT_MAX & PAGE_MASK). This incorrectly triggered the interrupt check, and resulted in 0-sized writev() on the next loop iteration. Fix is to make sure the limit is always checked, so we will return from the loop if the limit is already reached even if number of bytes sent is not exactly equal to the number of bytes we've tried to send.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 29 Oct 2021 20:21:51 +0300
parents d620f497c50f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
1 /
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
2 / Copyright (C) Igor Sysoev
4412
d620f497c50f Copyright updated.
Maxim Konovalov <maxim@nginx.com>
parents: 577
diff changeset
3 / Copyright (C) Nginx, Inc.
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
4 /
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
5
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
6
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
7 / "casa [%o2] 0x80, %o1, %o0" and
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 / "casxa [%o2] 0x80, %o1, %o0" do the following:
577
4d9ea73a627a nginx-0.3.10-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 561
diff changeset
9 /
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
10 / if ([%o2] == %o1) {
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
11 / swap(%o0, [%o2]);
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
12 / } else {
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
13 / %o0 = [%o2];
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
14 / }
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
15
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
16
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
17 / ngx_atomic_uint_t ngx_casa(ngx_atomic_uint_t set, ngx_atomic_uint_t old,
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
18 / ngx_atomic_t *lock);
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
19 /
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
20 / the arguments are passed in the %o0, %o1, %o2
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
21 / the result is returned in the %o0
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
22
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
23 .inline ngx_casa,0
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
24 casa [%o2] 0x80, %o1, %o0
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
25 .end
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
26
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
27
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
28 / ngx_atomic_uint_t ngx_casxa(ngx_atomic_uint_t set, ngx_atomic_uint_t old,
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
29 / ngx_atomic_t *lock);
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
30 /
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
31 / the arguments are passed in the %o0, %o1, %o2
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
32 / the result is returned in the %o0
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
33
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
34 .inline ngx_casxa,0
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
35 casxa [%o2] 0x80, %o1, %o0
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
36 .end