Mercurial > hg > nginx-quic
view src/core/ngx_rwlock.h @ 8826:3436b441239b quic
HTTP/3: proper uni stream closure detection.
Previously, closure detection for server-initiated uni streams was not properly
implemented. Instead, HTTP/3 code relied on QUIC code posting the read event
and setting rev->error when it needed to close the stream. Then, regular
uni stream read handler called c->recv() and received error, which closed the
stream. This was an ad-hoc solution. If, for whatever reason, the read
handler was called earlier, c->recv() would return 0, which would also close
the stream.
Now server-initiated uni streams have a separate read event handler for
tracking stream closure. The handler calls c->recv(), which normally returns
0, but may return error in case of closure.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Mon, 31 Jan 2022 09:46:30 +0300 |
parents | d1816a2696de |
children |
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/* * Copyright (C) Ruslan Ermilov * Copyright (C) Nginx, Inc. */ #ifndef _NGX_RWLOCK_H_INCLUDED_ #define _NGX_RWLOCK_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> void ngx_rwlock_wlock(ngx_atomic_t *lock); void ngx_rwlock_rlock(ngx_atomic_t *lock); void ngx_rwlock_unlock(ngx_atomic_t *lock); void ngx_rwlock_downgrade(ngx_atomic_t *lock); #endif /* _NGX_RWLOCK_H_INCLUDED_ */