Mercurial > hg > nginx
view src/os/win32/ngx_process.h @ 8041:0784ab86ad08
Upstream: fixed X-Accel-Expires/Cache-Control/Expires handling.
Previously, if caching was disabled due to Expires in the past, nginx
failed to cache the response even if it was cacheable as per subsequently
parsed Cache-Control header (ticket #964).
Similarly, if caching was disabled due to Expires in the past,
"Cache-Control: no-cache" or "Cache-Control: max-age=0", caching was not
used if it was cacheable as per subsequently parsed X-Accel-Expires header.
Fix is to avoid disabling caching immediately after parsing Expires in
the past or Cache-Control, but rather set flags which are later checked by
ngx_http_upstream_process_headers() (and cleared by "Cache-Control: max-age"
and X-Accel-Expires).
Additionally, now X-Accel-Expires does not prevent parsing of cache control
extensions, notably stale-while-revalidate and stale-if-error. This
ensures that order of the X-Accel-Expires and Cache-Control headers is not
important.
Prodded by Vadim Fedorenko and Yugo Horie.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 07 Jun 2022 00:07:12 +0300 |
parents | 8b84d60ef13d |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_PROCESS_H_INCLUDED_ #define _NGX_PROCESS_H_INCLUDED_ typedef DWORD ngx_pid_t; #define NGX_INVALID_PID 0 #define ngx_getpid GetCurrentProcessId #define ngx_getppid() 0 #define ngx_log_pid ngx_pid #define NGX_PROCESS_SYNC_NAME \ (sizeof("ngx_cache_manager_mutex_") + NGX_INT32_LEN) typedef uint64_t ngx_cpuset_t; typedef struct { HANDLE handle; ngx_pid_t pid; char *name; HANDLE term; HANDLE quit; HANDLE reopen; u_char term_event[NGX_PROCESS_SYNC_NAME]; u_char quit_event[NGX_PROCESS_SYNC_NAME]; u_char reopen_event[NGX_PROCESS_SYNC_NAME]; unsigned just_spawn:1; unsigned exiting:1; } ngx_process_t; typedef struct { char *path; char *name; char *args; char *const *argv; char *const *envp; HANDLE child; } ngx_exec_ctx_t; ngx_pid_t ngx_spawn_process(ngx_cycle_t *cycle, char *name, ngx_int_t respawn); ngx_pid_t ngx_execute(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx); #define ngx_debug_point() #define ngx_sched_yield() SwitchToThread() #define NGX_MAX_PROCESSES (MAXIMUM_WAIT_OBJECTS - 4) #define NGX_PROCESS_RESPAWN -2 #define NGX_PROCESS_JUST_RESPAWN -3 extern int ngx_argc; extern char **ngx_argv; extern char **ngx_os_argv; extern ngx_int_t ngx_last_process; extern ngx_process_t ngx_processes[NGX_MAX_PROCESSES]; extern ngx_pid_t ngx_pid; extern ngx_pid_t ngx_parent; #endif /* _NGX_PROCESS_H_INCLUDED_ */