Mercurial > hg > nginx-quic
view src/os/unix/ngx_process_cycle.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 | b4cc553aafeb |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_PROCESS_CYCLE_H_INCLUDED_ #define _NGX_PROCESS_CYCLE_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #define NGX_CMD_OPEN_CHANNEL 1 #define NGX_CMD_CLOSE_CHANNEL 2 #define NGX_CMD_QUIT 3 #define NGX_CMD_TERMINATE 4 #define NGX_CMD_REOPEN 5 #define NGX_PROCESS_SINGLE 0 #define NGX_PROCESS_MASTER 1 #define NGX_PROCESS_SIGNALLER 2 #define NGX_PROCESS_WORKER 3 #define NGX_PROCESS_HELPER 4 typedef struct { ngx_event_handler_pt handler; char *name; ngx_msec_t delay; } ngx_cache_manager_ctx_t; void ngx_master_process_cycle(ngx_cycle_t *cycle); void ngx_single_process_cycle(ngx_cycle_t *cycle); extern ngx_uint_t ngx_process; extern ngx_uint_t ngx_worker; extern ngx_pid_t ngx_pid; extern ngx_pid_t ngx_new_binary; extern ngx_uint_t ngx_inherited; extern ngx_uint_t ngx_daemonized; extern ngx_uint_t ngx_exiting; extern sig_atomic_t ngx_reap; extern sig_atomic_t ngx_sigio; extern sig_atomic_t ngx_sigalrm; extern sig_atomic_t ngx_quit; extern sig_atomic_t ngx_debug_quit; extern sig_atomic_t ngx_terminate; extern sig_atomic_t ngx_noaccept; extern sig_atomic_t ngx_reconfigure; extern sig_atomic_t ngx_reopen; extern sig_atomic_t ngx_change_binary; #endif /* _NGX_PROCESS_CYCLE_H_INCLUDED_ */