Mercurial > hg > nginx-quic
view src/os/unix/ngx_thread_id.c @ 7892:2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
As per https://tools.ietf.org/html/rfc7540#section-8.1,
: A server can send a complete response prior to the client
: sending an entire request if the response does not depend on
: any portion of the request that has not been sent and
: received. When this is true, a server MAY request that the
: client abort transmission of a request without error by
: sending a RST_STREAM with an error code of NO_ERROR after
: sending a complete response (i.e., a frame with the
: END_STREAM flag). Clients MUST NOT discard responses as a
: result of receiving such a RST_STREAM, though clients can
: always discard responses at their discretion for other
: reasons.
Previously, RST_STREAM(NO_ERROR) received from upstream after
a frame with the END_STREAM flag was incorrectly treated as an
error. Now, a single RST_STREAM(NO_ERROR) is properly handled.
This fixes problems observed with modern grpc-c [1], as well
as with the Go gRPC module.
[1] https://github.com/grpc/grpc/pull/1661
author | Ruslan Ermilov <ru@nginx.com> |
---|---|
date | Thu, 23 Apr 2020 15:10:24 +0300 |
parents | 466bd63b63d1 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_thread_pool.h> #if (NGX_LINUX) /* * Linux thread id is a pid of thread created by clone(2), * glibc does not provide a wrapper for gettid(). */ ngx_tid_t ngx_thread_tid(void) { return syscall(SYS_gettid); } #elif (NGX_FREEBSD) && (__FreeBSD_version >= 900031) #include <pthread_np.h> ngx_tid_t ngx_thread_tid(void) { return pthread_getthreadid_np(); } #elif (NGX_DARWIN) /* * MacOSX thread has two thread ids: * * 1) MacOSX 10.6 (Snow Leoprad) has pthread_threadid_np() returning * an uint64_t value, which is obtained using the __thread_selfid() * syscall. It is a number above 300,000. */ ngx_tid_t ngx_thread_tid(void) { uint64_t tid; (void) pthread_threadid_np(NULL, &tid); return tid; } /* * 2) Kernel thread mach_port_t returned by pthread_mach_thread_np(). * It is a number in range 100-100,000. * * return pthread_mach_thread_np(pthread_self()); */ #else ngx_tid_t ngx_thread_tid(void) { return (uint64_t) (uintptr_t) pthread_self(); } #endif