Mercurial > hg > nginx-quic
view src/core/ngx_cycle.h @ 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 | fc4d82c13c04 |
children | b9071b875194 |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_CYCLE_H_INCLUDED_ #define _NGX_CYCLE_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #ifndef NGX_CYCLE_POOL_SIZE #define NGX_CYCLE_POOL_SIZE NGX_DEFAULT_POOL_SIZE #endif #define NGX_DEBUG_POINTS_STOP 1 #define NGX_DEBUG_POINTS_ABORT 2 typedef struct ngx_shm_zone_s ngx_shm_zone_t; typedef ngx_int_t (*ngx_shm_zone_init_pt) (ngx_shm_zone_t *zone, void *data); struct ngx_shm_zone_s { void *data; ngx_shm_t shm; ngx_shm_zone_init_pt init; void *tag; void *sync; ngx_uint_t noreuse; /* unsigned noreuse:1; */ }; struct ngx_cycle_s { void ****conf_ctx; ngx_pool_t *pool; ngx_log_t *log; ngx_log_t new_log; ngx_uint_t log_use_stderr; /* unsigned log_use_stderr:1; */ ngx_connection_t **files; ngx_connection_t *free_connections; ngx_uint_t free_connection_n; ngx_module_t **modules; ngx_uint_t modules_n; ngx_uint_t modules_used; /* unsigned modules_used:1; */ ngx_queue_t reusable_connections_queue; ngx_uint_t reusable_connections_n; ngx_array_t listening; ngx_array_t paths; ngx_array_t config_dump; ngx_rbtree_t config_dump_rbtree; ngx_rbtree_node_t config_dump_sentinel; ngx_list_t open_files; ngx_list_t shared_memory; ngx_uint_t connection_n; ngx_uint_t files_n; ngx_connection_t *connections; ngx_event_t *read_events; ngx_event_t *write_events; ngx_cycle_t *old_cycle; ngx_str_t conf_file; ngx_str_t conf_param; ngx_str_t conf_prefix; ngx_str_t prefix; ngx_str_t lock_file; ngx_str_t hostname; }; typedef struct { ngx_flag_t daemon; ngx_flag_t master; ngx_msec_t timer_resolution; ngx_msec_t shutdown_timeout; ngx_int_t worker_processes; ngx_int_t debug_points; ngx_int_t rlimit_nofile; off_t rlimit_core; int priority; ngx_uint_t cpu_affinity_auto; ngx_uint_t cpu_affinity_n; ngx_cpuset_t *cpu_affinity; char *username; ngx_uid_t user; ngx_gid_t group; ngx_str_t working_directory; ngx_str_t lock_file; ngx_str_t pid; ngx_str_t oldpid; ngx_array_t env; char **environment; ngx_uint_t transparent; /* unsigned transparent:1; */ } ngx_core_conf_t; #define ngx_is_init_cycle(cycle) (cycle->conf_ctx == NULL) ngx_cycle_t *ngx_init_cycle(ngx_cycle_t *old_cycle); ngx_int_t ngx_create_pidfile(ngx_str_t *name, ngx_log_t *log); void ngx_delete_pidfile(ngx_cycle_t *cycle); ngx_int_t ngx_signal_process(ngx_cycle_t *cycle, char *sig); void ngx_reopen_files(ngx_cycle_t *cycle, ngx_uid_t user); char **ngx_set_environment(ngx_cycle_t *cycle, ngx_uint_t *last); ngx_pid_t ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv); ngx_cpuset_t *ngx_get_cpu_affinity(ngx_uint_t n); ngx_shm_zone_t *ngx_shared_memory_add(ngx_conf_t *cf, ngx_str_t *name, size_t size, void *tag); void ngx_set_shutdown_timer(ngx_cycle_t *cycle); extern volatile ngx_cycle_t *ngx_cycle; extern ngx_array_t ngx_old_cycles; extern ngx_module_t ngx_core_module; extern ngx_uint_t ngx_test_config; extern ngx_uint_t ngx_dump_config; extern ngx_uint_t ngx_quiet_mode; #endif /* _NGX_CYCLE_H_INCLUDED_ */