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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Valentin V. Bartenev
 * Copyright (C) NGINX, Inc.
 */

#ifndef _NXT_RUNTIME_H_INCLUDED_
#define _NXT_RUNTIME_H_INCLUDED_


typedef void (*nxt_runtime_cont_t)(nxt_task_t *task);


struct nxt_runtime_s {
    nxt_mp_t               *mem_pool;

    nxt_array_t            *inherited_sockets;  /* of nxt_listen_socket_t */
    nxt_array_t            *listen_sockets;     /* of nxt_listen_socket_t */

    nxt_array_t            *services;           /* of nxt_service_t */
    void                   *data;

    nxt_runtime_cont_t     start;

    nxt_str_t              *conf_prefix;
    nxt_str_t              *prefix;

    nxt_str_t              hostname;

    nxt_file_name_t        *pid_file;

#if (NXT_THREADS)
    nxt_array_t            *thread_pools;       /* of nxt_thread_pool_t */
    nxt_runtime_cont_t     continuation;
#endif

    nxt_process_t          *mprocess;
    size_t                 nprocesses;
    nxt_lvlhsh_t           processes;           /* of nxt_process_t */

    nxt_port_t             *port_by_type[NXT_PROCESS_MAX];
    nxt_lvlhsh_t           ports;               /* of nxt_port_t */

    nxt_list_t             *log_files;          /* of nxt_file_t */

    uint32_t               last_engine_id;

    uint32_t               types;         /* bitset of nxt_process_type_t */

    nxt_timer_t            timer;

    uint8_t                daemon;
    uint8_t                batch;
    uint8_t                master_process;
    const char             *engine;
    uint32_t               engine_connections;
    uint32_t               worker_processes;
    uint32_t               auxiliary_threads;
    nxt_user_cred_t        user_cred;
    const char             *group;
    const char             *pid;
    const char             *error_log;

    nxt_queue_t            engines;            /* of nxt_event_engine_t */

    nxt_sockaddr_t         *controller_listen;
    nxt_listen_socket_t    *controller_socket;
    nxt_str_t              upstream;
};



typedef nxt_int_t (*nxt_module_init_t)(nxt_thread_t *thr, nxt_runtime_t *rt);


nxt_int_t nxt_runtime_create(nxt_task_t *task);
void nxt_runtime_quit(nxt_task_t *task);

void nxt_runtime_event_engine_free(nxt_runtime_t *rt);

#if (NXT_THREADS)
nxt_int_t nxt_runtime_thread_pool_create(nxt_thread_t *thr, nxt_runtime_t *rt,
    nxt_uint_t max_threads, nxt_nsec_t timeout);
#endif


nxt_inline nxt_bool_t
nxt_runtime_is_type(nxt_runtime_t *rt, nxt_process_type_t type)
{
    return (rt->types & (1U << type)) != 0;
}


nxt_inline nxt_bool_t
nxt_runtime_is_master(nxt_runtime_t *rt)
{
    return nxt_runtime_is_type(rt, NXT_PROCESS_MASTER);
}


nxt_process_t *nxt_runtime_process_new(nxt_runtime_t *rt);

void nxt_runtime_process_destroy(nxt_runtime_t *rt, nxt_process_t *process);

nxt_process_t *nxt_runtime_process_get(nxt_runtime_t *rt, nxt_pid_t pid);

void nxt_runtime_process_add(nxt_runtime_t *rt, nxt_process_t *process);

nxt_process_t *nxt_runtime_process_find(nxt_runtime_t *rt, nxt_pid_t pid);

void nxt_runtime_process_remove(nxt_runtime_t *rt, nxt_process_t *process);

nxt_process_t *nxt_runtime_process_first(nxt_runtime_t *rt,
    nxt_lvlhsh_each_t *lhe);

#define nxt_runtime_process_next(rt, lhe)                                     \
    nxt_lvlhsh_each(&rt->processes, lhe)


void nxt_runtime_port_add(nxt_runtime_t *rt, nxt_port_t *port);

void nxt_runtime_port_remove(nxt_runtime_t *rt, nxt_port_t *port);

nxt_port_t *nxt_runtime_port_find(nxt_runtime_t *rt, nxt_pid_t pid,
    nxt_port_id_t port_id);

nxt_port_t *nxt_runtime_port_first(nxt_runtime_t *rt,
    nxt_lvlhsh_each_t *lhe);

#define nxt_runtime_port_next(rt, lhe)                                        \
    nxt_port_hash_next(&rt->ports, lhe)


/* STUB */
nxt_int_t nxt_runtime_controller_socket(nxt_task_t *task, nxt_runtime_t *rt);

nxt_str_t *nxt_current_directory(nxt_mp_t *mp);

nxt_listen_socket_t *nxt_runtime_listen_socket_add(nxt_runtime_t *rt,
    nxt_sockaddr_t *sa);
nxt_int_t nxt_runtime_listen_sockets_create(nxt_task_t *task,
    nxt_runtime_t *rt);
nxt_int_t nxt_runtime_listen_sockets_enable(nxt_task_t *task,
    nxt_runtime_t *rt);
nxt_file_t *nxt_runtime_log_file_add(nxt_runtime_t *rt, nxt_str_t *name);

/* STUB */
void nxt_cdecl nxt_log_time_handler(nxt_uint_t level, nxt_log_t *log,
    const char *fmt, ...);

void nxt_stream_connection_init(nxt_task_t *task, void *obj, void *data);

void nxt_port_app_data_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg);


#define nxt_runtime_process_each(rt, process)                                 \
    do {                                                                      \
        nxt_lvlhsh_each_t  _lhe;                                              \
        nxt_process_t      *_nxt;                                             \
                                                                              \
        for (process = nxt_runtime_process_first(rt, &_lhe);                  \
             process != NULL;                                                 \
             process = _nxt) {                                                \
                                                                              \
            _nxt = nxt_runtime_process_next(rt, &_lhe);                       \

#define nxt_runtime_process_loop                                              \
        }                                                                     \
    } while(0)


#define nxt_runtime_port_each(rt, port)                                       \
    do {                                                                      \
        nxt_lvlhsh_each_t  _lhe;                                              \
                                                                              \
        for (port = nxt_runtime_port_first(rt, &_lhe);                        \
             port != NULL;                                                    \
             port = nxt_runtime_port_next(rt, &_lhe)) {                       \

#define nxt_runtime_port_loop                                                 \
        }                                                                     \
    } while(0)


extern nxt_module_init_t  nxt_init_modules[];
extern nxt_uint_t         nxt_init_modules_n;


#endif /* _NXT_RUNTIME_H_INCLIDED_ */