nginx/src/core/ngx_cycle.h
Maxim Dounin 97f59dda09 Dynamic modules.
The auto/module script is extended to understand ngx_module_link=DYNAMIC.
When set, it links the module as a shared object rather than statically
into nginx binary.  The module can later be loaded using the "load_module"
directive.

New auto/module parameter ngx_module_order allows to define module loading
order in complex cases.  By default the order is set based on ngx_module_type.

3rd party modules can be compiled dynamically using the --add-dynamic-module
configure option, which will preset ngx_module_link to "DYNAMIC" before
calling the module config script.

Win32 support is rudimentary, and only works when using MinGW gcc (which
is able to handle exports/imports automatically).

In collaboration with Ruslan Ermilov.
2016-02-04 20:25:29 +03:00

138 lines
3.8 KiB
C

/*
* 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;
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_array_t listening;
ngx_array_t paths;
ngx_array_t config_dump;
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_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;
uint64_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_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);
uint64_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);
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_ */