view src/core/ngx_core.h @ 6133:af7eba90645d

Win32: shared memory base addresses and remapping. Two mechanisms are implemented to make it possible to store pointers in shared memory on Windows, in particular on Windows Vista and later versions with ASLR: - The ngx_shm_remap() function added to allow remapping of a shared memory zone to the address originally used for it in the master process. While important, it doesn't solve the problem by itself as in many cases it's not possible to use the address because of conflicts with other allocations. - We now create mappings at the same address in all processes by starting mappings at predefined addresses normally unused by newborn processes. These two mechanisms combined allow to use shared memory on Windows almost without problems, including reloads. Based on the patch by Sergey Brester: http://mailman.nginx.org/pipermail/nginx-devel/2015-April/006836.html
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 27 Apr 2015 18:25:42 +0300
parents cb790d1b2d16
children 8b6fa4842133
line wrap: on
line source


/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_CORE_H_INCLUDED_
#define _NGX_CORE_H_INCLUDED_


#include <ngx_config.h>


typedef struct ngx_module_s      ngx_module_t;
typedef struct ngx_conf_s        ngx_conf_t;
typedef struct ngx_cycle_s       ngx_cycle_t;
typedef struct ngx_pool_s        ngx_pool_t;
typedef struct ngx_chain_s       ngx_chain_t;
typedef struct ngx_log_s         ngx_log_t;
typedef struct ngx_open_file_s   ngx_open_file_t;
typedef struct ngx_command_s     ngx_command_t;
typedef struct ngx_file_s        ngx_file_t;
typedef struct ngx_event_s       ngx_event_t;
typedef struct ngx_event_aio_s   ngx_event_aio_t;
typedef struct ngx_connection_s  ngx_connection_t;

#if (NGX_THREADS)
typedef struct ngx_thread_task_s  ngx_thread_task_t;
#endif

typedef void (*ngx_event_handler_pt)(ngx_event_t *ev);
typedef void (*ngx_connection_handler_pt)(ngx_connection_t *c);


#define  NGX_OK          0
#define  NGX_ERROR      -1
#define  NGX_AGAIN      -2
#define  NGX_BUSY       -3
#define  NGX_DONE       -4
#define  NGX_DECLINED   -5
#define  NGX_ABORT      -6


#include <ngx_errno.h>
#include <ngx_atomic.h>
#include <ngx_thread.h>
#include <ngx_rbtree.h>
#include <ngx_time.h>
#include <ngx_socket.h>
#include <ngx_string.h>
#include <ngx_files.h>
#include <ngx_shmem.h>
#include <ngx_process.h>
#include <ngx_user.h>
#include <ngx_parse.h>
#include <ngx_log.h>
#include <ngx_alloc.h>
#include <ngx_palloc.h>
#include <ngx_buf.h>
#include <ngx_queue.h>
#include <ngx_array.h>
#include <ngx_list.h>
#include <ngx_hash.h>
#include <ngx_file.h>
#include <ngx_crc.h>
#include <ngx_crc32.h>
#include <ngx_murmurhash.h>
#if (NGX_PCRE)
#include <ngx_regex.h>
#endif
#include <ngx_radix_tree.h>
#include <ngx_times.h>
#include <ngx_rwlock.h>
#include <ngx_shmtx.h>
#include <ngx_slab.h>
#include <ngx_inet.h>
#include <ngx_cycle.h>
#include <ngx_resolver.h>
#if (NGX_OPENSSL)
#include <ngx_event_openssl.h>
#endif
#include <ngx_process_cycle.h>
#include <ngx_conf_file.h>
#include <ngx_open_file_cache.h>
#include <ngx_os.h>
#include <ngx_connection.h>
#include <ngx_syslog.h>
#include <ngx_proxy_protocol.h>


#define LF     (u_char) '\n'
#define CR     (u_char) '\r'
#define CRLF   "\r\n"


#define ngx_abs(value)       (((value) >= 0) ? (value) : - (value))
#define ngx_max(val1, val2)  ((val1 < val2) ? (val2) : (val1))
#define ngx_min(val1, val2)  ((val1 > val2) ? (val2) : (val1))

void ngx_cpuinfo(void);

#if (NGX_HAVE_OPENAT)
#define NGX_DISABLE_SYMLINKS_OFF        0
#define NGX_DISABLE_SYMLINKS_ON         1
#define NGX_DISABLE_SYMLINKS_NOTOWNER   2
#endif

#endif /* _NGX_CORE_H_INCLUDED_ */