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/*
* Copyright (C) Igor Sysoev
* Copyright (C) NGINX, Inc.
*/
#ifndef _NXT_PROCESS_H_INCLUDED_
#define _NXT_PROCESS_H_INCLUDED_
#include <nxt_conf.h>
typedef pid_t nxt_pid_t;
typedef uid_t nxt_uid_t;
typedef gid_t nxt_gid_t;
typedef struct {
const char *user;
nxt_uid_t uid;
nxt_gid_t base_gid;
nxt_uint_t ngroups;
nxt_gid_t *gids;
} nxt_user_cred_t;
typedef struct {
nxt_int_t flags;
nxt_conf_value_t *uidmap;
nxt_conf_value_t *gidmap;
} nxt_process_clone_t;
typedef struct nxt_process_init_s nxt_process_init_t;
typedef nxt_int_t (*nxt_process_start_t)(nxt_task_t *task, void *data);
typedef nxt_int_t (*nxt_process_restart_t)(nxt_task_t *task, nxt_runtime_t *rt,
nxt_process_init_t *init);
struct nxt_process_init_s {
nxt_mp_t *mem_pool;
nxt_process_start_t start;
const char *name;
nxt_user_cred_t *user_cred;
const nxt_port_handlers_t *port_handlers;
const nxt_sig_event_t *signals;
nxt_process_type_t type;
void *data;
uint32_t stream;
union {
nxt_process_clone_t clone;
} isolation;
};
typedef struct nxt_port_mmap_s nxt_port_mmap_t;
typedef struct nxt_port_mmaps_s nxt_port_mmaps_t;
struct nxt_port_mmaps_s {
nxt_thread_mutex_t mutex;
uint32_t size;
uint32_t cap;
nxt_port_mmap_t *elts;
};
typedef struct {
nxt_pid_t pid;
nxt_queue_t ports; /* of nxt_port_t */
nxt_bool_t ready;
nxt_bool_t registered;
nxt_int_t use_count;
nxt_process_init_t *init;
nxt_port_mmaps_t incoming;
nxt_port_mmaps_t outgoing;
nxt_thread_mutex_t cp_mutex;
nxt_lvlhsh_t connected_ports; /* of nxt_port_t */
} nxt_process_t;
extern nxt_bool_t nxt_proc_conn_matrix[NXT_PROCESS_MAX][NXT_PROCESS_MAX];
extern nxt_bool_t
nxt_proc_remove_notify_matrix[NXT_PROCESS_MAX][NXT_PROCESS_MAX];
NXT_EXPORT nxt_pid_t nxt_process_create(nxt_task_t *task,
nxt_process_t *process);
NXT_EXPORT nxt_pid_t nxt_process_execute(nxt_task_t *task, char *name,
char **argv, char **envp);
NXT_EXPORT nxt_int_t nxt_process_daemon(nxt_task_t *task);
NXT_EXPORT void nxt_nanosleep(nxt_nsec_t ns);
NXT_EXPORT void nxt_process_arguments(nxt_task_t *task, char **orig_argv,
char ***orig_envp);
#define nxt_process_port_remove(port) \
nxt_queue_remove(&port->link)
#define nxt_process_port_first(process) \
nxt_queue_link_data(nxt_queue_first(&process->ports), nxt_port_t, link)
NXT_EXPORT void nxt_process_port_add(nxt_task_t *task, nxt_process_t *process,
nxt_port_t *port);
#define nxt_process_port_each(process, port) \
nxt_queue_each(port, &process->ports, nxt_port_t, link)
#define nxt_process_port_loop \
nxt_queue_loop
nxt_process_type_t nxt_process_type(nxt_process_t *process);
void nxt_process_use(nxt_task_t *task, nxt_process_t *process, int i);
void nxt_process_close_ports(nxt_task_t *task, nxt_process_t *process);
void nxt_process_connected_port_add(nxt_process_t *process, nxt_port_t *port);
void nxt_process_connected_port_remove(nxt_process_t *process,
nxt_port_t *port);
nxt_port_t *nxt_process_connected_port_find(nxt_process_t *process,
nxt_pid_t pid, nxt_port_id_t port_id);
void nxt_worker_process_quit_handler(nxt_task_t *task,
nxt_port_recv_msg_t *msg);
#if (NXT_HAVE_SETPROCTITLE)
#define nxt_process_title(task, fmt, ...) \
setproctitle(fmt, __VA_ARGS__)
#elif (NXT_LINUX || NXT_SOLARIS || NXT_MACOSX)
#define NXT_SETPROCTITLE_ARGV 1
NXT_EXPORT void nxt_process_title(nxt_task_t *task, const char *fmt, ...);
#endif
#define nxt_sched_yield() \
sched_yield()
/*
* Solaris declares abort() as __NORETURN,
* raise(SIGABRT) is mostly the same.
*/
#define nxt_abort() \
(void) raise(SIGABRT)
NXT_EXPORT nxt_int_t nxt_user_cred_get(nxt_task_t *task, nxt_mp_t *mp,
nxt_user_cred_t *uc, const char *group);
NXT_EXPORT nxt_int_t nxt_user_cred_set(nxt_task_t *task, nxt_user_cred_t *uc);
NXT_EXPORT extern nxt_pid_t nxt_pid;
NXT_EXPORT extern nxt_pid_t nxt_ppid;
NXT_EXPORT extern char **nxt_process_argv;
NXT_EXPORT extern char ***nxt_process_environ;
#endif /* _NXT_PROCESS_H_INCLUDED_ */
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