Mercurial > hg > nginx-quic
view src/os/unix/ngx_sunpro_amd64.il @ 8743:5d09596909c6 stable-1.20
Upstream: fixed timeouts with gRPC, SSL and select (ticket #2229).
With SSL it is possible that an established connection is ready for
reading after the handshake. Further, events might be already disabled
in case of level-triggered event methods. If this happens and
ngx_http_upstream_send_request() blocks waiting for some data from
the upstream, such as flow control in case of gRPC, the connection
will time out due to no read events on the upstream connection.
Fix is to explicitly check the c->read->ready flag if sending request
blocks and post a read event if it is set.
Note that while it is possible to modify ngx_ssl_handshake() to keep
read events active, this won't completely resolve the issue, since
there can be data already received during the SSL handshake
(see 573bd30e46b4).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Fri, 20 Aug 2021 03:53:56 +0300 |
parents | 2cd019520210 |
children |
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/ / Copyright (C) Igor Sysoev / Copyright (C) Nginx, Inc. / / ngx_atomic_uint_t ngx_atomic_cmp_set(ngx_atomic_t *lock, / ngx_atomic_uint_t old, ngx_atomic_uint_t set); / / the arguments are passed in %rdi, %rsi, %rdx / the result is returned in the %rax .inline ngx_atomic_cmp_set,0 movq %rsi, %rax lock cmpxchgq %rdx, (%rdi) setz %al movzbq %al, %rax .end / ngx_atomic_int_t ngx_atomic_fetch_add(ngx_atomic_t *value, / ngx_atomic_int_t add); / / the arguments are passed in %rdi, %rsi / the result is returned in the %rax .inline ngx_atomic_fetch_add,0 movq %rsi, %rax lock xaddq %rax, (%rdi) .end / ngx_cpu_pause() / / the "rep; nop" is used instead of "pause" to avoid the "[ PAUSE ]" hardware / capability added by linker because Solaris/amd64 does not know about it: / / ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000 [ PAUSE ] .inline ngx_cpu_pause,0 rep; nop .end