xref: /unit/src/nxt_port.h (revision 1488)
111Sigor@sysoev.ru 
211Sigor@sysoev.ru /*
311Sigor@sysoev.ru  * Copyright (C) Igor Sysoev
411Sigor@sysoev.ru  * Copyright (C) NGINX, Inc.
511Sigor@sysoev.ru  */
611Sigor@sysoev.ru 
711Sigor@sysoev.ru #ifndef _NXT_PORT_H_INCLUDED_
811Sigor@sysoev.ru #define _NXT_PORT_H_INCLUDED_
911Sigor@sysoev.ru 
1011Sigor@sysoev.ru 
11320Smax.romanov@nginx.com struct nxt_port_handlers_s {
12320Smax.romanov@nginx.com     /* RPC responses. */
13320Smax.romanov@nginx.com     nxt_port_handler_t  rpc_ready;
14320Smax.romanov@nginx.com     nxt_port_handler_t  rpc_error;
15320Smax.romanov@nginx.com 
16320Smax.romanov@nginx.com     /* Main process RPC requests. */
17*1488St.nateldemoura@f5.com     nxt_port_handler_t  start_process;
18320Smax.romanov@nginx.com     nxt_port_handler_t  socket;
19320Smax.romanov@nginx.com     nxt_port_handler_t  modules;
20320Smax.romanov@nginx.com     nxt_port_handler_t  conf_store;
21774Svbart@nginx.com     nxt_port_handler_t  cert_get;
22774Svbart@nginx.com     nxt_port_handler_t  cert_delete;
23630Svbart@nginx.com     nxt_port_handler_t  access_log;
24320Smax.romanov@nginx.com 
25320Smax.romanov@nginx.com     /* File descriptor exchange. */
26320Smax.romanov@nginx.com     nxt_port_handler_t  change_file;
27320Smax.romanov@nginx.com     nxt_port_handler_t  new_port;
28320Smax.romanov@nginx.com     nxt_port_handler_t  mmap;
29320Smax.romanov@nginx.com 
30*1488St.nateldemoura@f5.com     /* New process */
31*1488St.nateldemoura@f5.com     nxt_port_handler_t  process_created;
32320Smax.romanov@nginx.com     nxt_port_handler_t  process_ready;
33320Smax.romanov@nginx.com 
34320Smax.romanov@nginx.com     /* Process exit/crash notification. */
35320Smax.romanov@nginx.com     nxt_port_handler_t  remove_pid;
36320Smax.romanov@nginx.com 
37320Smax.romanov@nginx.com     /* Stop process command. */
38320Smax.romanov@nginx.com     nxt_port_handler_t  quit;
39320Smax.romanov@nginx.com 
401131Smax.romanov@nginx.com     /* Request headers. */
411131Smax.romanov@nginx.com     nxt_port_handler_t  req_headers;
421131Smax.romanov@nginx.com 
431131Smax.romanov@nginx.com     /* Websocket frame. */
441131Smax.romanov@nginx.com     nxt_port_handler_t  websocket_frame;
451131Smax.romanov@nginx.com 
46320Smax.romanov@nginx.com     /* Various data. */
47320Smax.romanov@nginx.com     nxt_port_handler_t  data;
481321Smax.romanov@nginx.com 
491321Smax.romanov@nginx.com     nxt_port_handler_t  oosm;
501321Smax.romanov@nginx.com     nxt_port_handler_t  shm_ack;
51320Smax.romanov@nginx.com };
52320Smax.romanov@nginx.com 
53320Smax.romanov@nginx.com 
54320Smax.romanov@nginx.com #define nxt_port_handler_idx(name)                                            \
55389Smax.romanov@nginx.com     ( offsetof(nxt_port_handlers_t, name) / sizeof(nxt_port_handler_t) )
56320Smax.romanov@nginx.com 
57*1488St.nateldemoura@f5.com #define nxt_msg_last(handler)                                                 \
58*1488St.nateldemoura@f5.com     (handler | NXT_PORT_MSG_LAST)
59320Smax.romanov@nginx.com 
6042Smax.romanov@nginx.com typedef enum {
61*1488St.nateldemoura@f5.com     NXT_PORT_MSG_LAST             = 0x100,
62*1488St.nateldemoura@f5.com     NXT_PORT_MSG_CLOSE_FD         = 0x200,
63*1488St.nateldemoura@f5.com     NXT_PORT_MSG_SYNC             = 0x400,
64189Smax.romanov@nginx.com 
65*1488St.nateldemoura@f5.com     NXT_PORT_MSG_MASK             = 0xFF,
66189Smax.romanov@nginx.com 
67*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_RPC_READY       = nxt_port_handler_idx(rpc_ready),
68*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_RPC_ERROR       = nxt_port_handler_idx(rpc_error),
69320Smax.romanov@nginx.com 
70*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_START_PROCESS   = nxt_port_handler_idx(start_process),
71*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_SOCKET          = nxt_port_handler_idx(socket),
72*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_MODULES         = nxt_port_handler_idx(modules),
73*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_CONF_STORE      = nxt_port_handler_idx(conf_store),
74*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_CERT_GET        = nxt_port_handler_idx(cert_get),
75*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_CERT_DELETE     = nxt_port_handler_idx(cert_delete),
76*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_ACCESS_LOG      = nxt_port_handler_idx(access_log),
7742Smax.romanov@nginx.com 
78*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_CHANGE_FILE     = nxt_port_handler_idx(change_file),
79*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_NEW_PORT        = nxt_port_handler_idx(new_port),
80*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_MMAP            = nxt_port_handler_idx(mmap),
81320Smax.romanov@nginx.com 
82*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_PROCESS_CREATED = nxt_port_handler_idx(process_created),
83*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_PROCESS_READY   = nxt_port_handler_idx(process_ready),
84*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_REMOVE_PID      = nxt_port_handler_idx(remove_pid),
85*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_QUIT            = nxt_port_handler_idx(quit),
861131Smax.romanov@nginx.com 
87*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_REQ_HEADERS     = nxt_port_handler_idx(req_headers),
88*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_WEBSOCKET       = nxt_port_handler_idx(websocket_frame),
89189Smax.romanov@nginx.com 
90*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_DATA            = nxt_port_handler_idx(data),
911321Smax.romanov@nginx.com 
92*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_OOSM            = nxt_port_handler_idx(oosm),
93*1488St.nateldemoura@f5.com     _NXT_PORT_MSG_SHM_ACK         = nxt_port_handler_idx(shm_ack),
94320Smax.romanov@nginx.com 
95*1488St.nateldemoura@f5.com     NXT_PORT_MSG_MAX              = sizeof(nxt_port_handlers_t)
96*1488St.nateldemoura@f5.com                                     / sizeof(nxt_port_handler_t),
97320Smax.romanov@nginx.com 
98*1488St.nateldemoura@f5.com     NXT_PORT_MSG_RPC_READY        = _NXT_PORT_MSG_RPC_READY,
99*1488St.nateldemoura@f5.com     NXT_PORT_MSG_RPC_READY_LAST   = nxt_msg_last(_NXT_PORT_MSG_RPC_READY),
100*1488St.nateldemoura@f5.com     NXT_PORT_MSG_RPC_ERROR        = nxt_msg_last(_NXT_PORT_MSG_RPC_ERROR),
101*1488St.nateldemoura@f5.com     NXT_PORT_MSG_START_PROCESS    = nxt_msg_last(_NXT_PORT_MSG_START_PROCESS),
102*1488St.nateldemoura@f5.com     NXT_PORT_MSG_SOCKET           = nxt_msg_last(_NXT_PORT_MSG_SOCKET),
103*1488St.nateldemoura@f5.com     NXT_PORT_MSG_MODULES          = nxt_msg_last(_NXT_PORT_MSG_MODULES),
104*1488St.nateldemoura@f5.com     NXT_PORT_MSG_CONF_STORE       = nxt_msg_last(_NXT_PORT_MSG_CONF_STORE),
105*1488St.nateldemoura@f5.com     NXT_PORT_MSG_CERT_GET         = nxt_msg_last(_NXT_PORT_MSG_CERT_GET),
106*1488St.nateldemoura@f5.com     NXT_PORT_MSG_CERT_DELETE      = nxt_msg_last(_NXT_PORT_MSG_CERT_DELETE),
107*1488St.nateldemoura@f5.com     NXT_PORT_MSG_ACCESS_LOG       = nxt_msg_last(_NXT_PORT_MSG_ACCESS_LOG),
108*1488St.nateldemoura@f5.com     NXT_PORT_MSG_CHANGE_FILE      = nxt_msg_last(_NXT_PORT_MSG_CHANGE_FILE),
109*1488St.nateldemoura@f5.com     NXT_PORT_MSG_NEW_PORT         = nxt_msg_last(_NXT_PORT_MSG_NEW_PORT),
110*1488St.nateldemoura@f5.com     NXT_PORT_MSG_MMAP             = nxt_msg_last(_NXT_PORT_MSG_MMAP)
111*1488St.nateldemoura@f5.com                                     | NXT_PORT_MSG_CLOSE_FD | NXT_PORT_MSG_SYNC,
112320Smax.romanov@nginx.com 
113*1488St.nateldemoura@f5.com     NXT_PORT_MSG_PROCESS_CREATED  = nxt_msg_last(_NXT_PORT_MSG_PROCESS_CREATED),
114*1488St.nateldemoura@f5.com     NXT_PORT_MSG_PROCESS_READY    = nxt_msg_last(_NXT_PORT_MSG_PROCESS_READY),
115*1488St.nateldemoura@f5.com     NXT_PORT_MSG_QUIT             = nxt_msg_last(_NXT_PORT_MSG_QUIT),
116*1488St.nateldemoura@f5.com     NXT_PORT_MSG_REMOVE_PID       = nxt_msg_last(_NXT_PORT_MSG_REMOVE_PID),
1171131Smax.romanov@nginx.com 
118*1488St.nateldemoura@f5.com     NXT_PORT_MSG_REQ_HEADERS      = _NXT_PORT_MSG_REQ_HEADERS,
119*1488St.nateldemoura@f5.com     NXT_PORT_MSG_WEBSOCKET        = _NXT_PORT_MSG_WEBSOCKET,
120*1488St.nateldemoura@f5.com     NXT_PORT_MSG_WEBSOCKET_LAST   = nxt_msg_last(_NXT_PORT_MSG_WEBSOCKET),
1211321Smax.romanov@nginx.com 
122*1488St.nateldemoura@f5.com     NXT_PORT_MSG_DATA             = _NXT_PORT_MSG_DATA,
123*1488St.nateldemoura@f5.com     NXT_PORT_MSG_DATA_LAST        = nxt_msg_last(_NXT_PORT_MSG_DATA),
124*1488St.nateldemoura@f5.com 
125*1488St.nateldemoura@f5.com     NXT_PORT_MSG_OOSM             = nxt_msg_last(_NXT_PORT_MSG_OOSM),
126*1488St.nateldemoura@f5.com     NXT_PORT_MSG_SHM_ACK          = nxt_msg_last(_NXT_PORT_MSG_SHM_ACK),
127125Smax.romanov@nginx.com } nxt_port_msg_type_t;
12842Smax.romanov@nginx.com 
12914Sigor@sysoev.ru 
13042Smax.romanov@nginx.com /* Passed as a first iov chunk. */
13142Smax.romanov@nginx.com typedef struct {
13242Smax.romanov@nginx.com     uint32_t             stream;
13342Smax.romanov@nginx.com     nxt_pid_t            pid;
13442Smax.romanov@nginx.com     nxt_port_id_t        reply_port;
13542Smax.romanov@nginx.com 
136189Smax.romanov@nginx.com     uint8_t              type;
137423Smax.romanov@nginx.com 
138423Smax.romanov@nginx.com     /* Last message for this stream. */
13942Smax.romanov@nginx.com     uint8_t              last;      /* 1 bit */
14042Smax.romanov@nginx.com 
14142Smax.romanov@nginx.com     /* Message data send using mmap, next chunk is a nxt_port_mmap_msg_t. */
14242Smax.romanov@nginx.com     uint8_t              mmap;      /* 1 bit */
143352Smax.romanov@nginx.com 
144423Smax.romanov@nginx.com     /* Non-First fragment in fragmented message sequence. */
145423Smax.romanov@nginx.com     uint8_t              nf;        /* 1 bit */
146423Smax.romanov@nginx.com 
147423Smax.romanov@nginx.com     /* More Fragments followed. */
148423Smax.romanov@nginx.com     uint8_t              mf;        /* 1 bit */
149423Smax.romanov@nginx.com 
150423Smax.romanov@nginx.com     /* Message delivery tracking enabled, next chunk is tracking msg. */
151423Smax.romanov@nginx.com     uint8_t              tracking;  /* 1 bit */
152168Svbart@nginx.com } nxt_port_msg_t;
15314Sigor@sysoev.ru 
15414Sigor@sysoev.ru 
15514Sigor@sysoev.ru typedef struct {
15614Sigor@sysoev.ru     nxt_queue_link_t    link;
15714Sigor@sysoev.ru     nxt_buf_t           *buf;
15814Sigor@sysoev.ru     size_t              share;
15914Sigor@sysoev.ru     nxt_fd_t            fd;
16014Sigor@sysoev.ru     nxt_port_msg_t      port_msg;
161423Smax.romanov@nginx.com     uint32_t            tracking_msg[2];
1621125Smax.romanov@nginx.com     uint8_t             close_fd;   /* 1 bit */
1631125Smax.romanov@nginx.com     uint8_t             allocated;  /* 1 bit */
16414Sigor@sysoev.ru } nxt_port_send_msg_t;
16514Sigor@sysoev.ru 
16614Sigor@sysoev.ru 
16720Sigor@sysoev.ru struct nxt_port_recv_msg_s {
16814Sigor@sysoev.ru     nxt_fd_t            fd;
16914Sigor@sysoev.ru     nxt_buf_t           *buf;
17014Sigor@sysoev.ru     nxt_port_t          *port;
17142Smax.romanov@nginx.com     nxt_port_msg_t      port_msg;
17282Smax.romanov@nginx.com     size_t              size;
173423Smax.romanov@nginx.com     nxt_bool_t          cancelled;
174347Smax.romanov@nginx.com     union {
175347Smax.romanov@nginx.com         nxt_port_t      *new_port;
176347Smax.romanov@nginx.com         nxt_pid_t       removed_pid;
177347Smax.romanov@nginx.com         void            *data;
178347Smax.romanov@nginx.com     } u;
17920Sigor@sysoev.ru };
18014Sigor@sysoev.ru 
181141Smax.romanov@nginx.com typedef struct nxt_app_s  nxt_app_t;
18214Sigor@sysoev.ru 
18314Sigor@sysoev.ru struct nxt_port_s {
18414Sigor@sysoev.ru     nxt_fd_event_t      socket;
18514Sigor@sysoev.ru 
186125Smax.romanov@nginx.com     nxt_queue_link_t    link;       /* for nxt_process_t.ports */
187141Smax.romanov@nginx.com     nxt_process_t       *process;
188141Smax.romanov@nginx.com 
189141Smax.romanov@nginx.com     nxt_queue_link_t    app_link;   /* for nxt_app_t.ports */
190141Smax.romanov@nginx.com     nxt_app_t           *app;
19142Smax.romanov@nginx.com 
192507Smax.romanov@nginx.com     nxt_queue_link_t    idle_link;  /* for nxt_app_t.idle_ports */
193507Smax.romanov@nginx.com     nxt_msec_t          idle_start;
194507Smax.romanov@nginx.com 
19514Sigor@sysoev.ru     nxt_queue_t         messages;   /* of nxt_port_send_msg_t */
196343Smax.romanov@nginx.com     nxt_thread_mutex_t  write_mutex;
19714Sigor@sysoev.ru 
19814Sigor@sysoev.ru     /* Maximum size of message part. */
19914Sigor@sysoev.ru     uint32_t            max_size;
20014Sigor@sysoev.ru     /* Maximum interleave of message parts. */
20114Sigor@sysoev.ru     uint32_t            max_share;
202343Smax.romanov@nginx.com 
203424Smax.romanov@nginx.com     uint32_t            app_pending_responses;
204343Smax.romanov@nginx.com     uint32_t            app_responses;
205425Smax.romanov@nginx.com     nxt_queue_t         pending_requests;
20614Sigor@sysoev.ru 
2071131Smax.romanov@nginx.com     nxt_queue_t         active_websockets;
2081131Smax.romanov@nginx.com 
20914Sigor@sysoev.ru     nxt_port_handler_t  handler;
210141Smax.romanov@nginx.com     nxt_port_handler_t  *data;
21114Sigor@sysoev.ru 
21265Sigor@sysoev.ru     nxt_mp_t            *mem_pool;
213141Smax.romanov@nginx.com     nxt_event_engine_t  *engine;
214141Smax.romanov@nginx.com 
21514Sigor@sysoev.ru     nxt_buf_t           *free_bufs;
21614Sigor@sysoev.ru     nxt_socket_t        pair[2];
21714Sigor@sysoev.ru 
21842Smax.romanov@nginx.com     nxt_port_id_t       id;
21914Sigor@sysoev.ru     nxt_pid_t           pid;
22042Smax.romanov@nginx.com 
221190Smax.romanov@nginx.com     nxt_lvlhsh_t        rpc_streams; /* stream to nxt_port_rpc_reg_t */
222190Smax.romanov@nginx.com     nxt_lvlhsh_t        rpc_peers;   /* peer to queue of nxt_port_rpc_reg_t */
223190Smax.romanov@nginx.com 
224352Smax.romanov@nginx.com     nxt_lvlhsh_t        frags;
225352Smax.romanov@nginx.com 
226343Smax.romanov@nginx.com     nxt_atomic_t        use_count;
227343Smax.romanov@nginx.com 
228141Smax.romanov@nginx.com     nxt_process_type_t  type;
22914Sigor@sysoev.ru };
23014Sigor@sysoev.ru 
23114Sigor@sysoev.ru 
23211Sigor@sysoev.ru typedef struct {
23342Smax.romanov@nginx.com     nxt_port_id_t       id;
23414Sigor@sysoev.ru     nxt_pid_t           pid;
23514Sigor@sysoev.ru     size_t              max_size;
23614Sigor@sysoev.ru     size_t              max_share;
23742Smax.romanov@nginx.com     nxt_process_type_t  type:8;
238168Svbart@nginx.com } nxt_port_msg_new_port_t;
23911Sigor@sysoev.ru 
24011Sigor@sysoev.ru 
24111Sigor@sysoev.ru /*
24214Sigor@sysoev.ru  * nxt_port_data_t size is allocation size
24314Sigor@sysoev.ru  * which enables effective reuse of memory pool cache.
24411Sigor@sysoev.ru  */
24511Sigor@sysoev.ru typedef union {
24611Sigor@sysoev.ru     nxt_buf_t                buf;
24714Sigor@sysoev.ru     nxt_port_msg_new_port_t  new_port;
24814Sigor@sysoev.ru } nxt_port_data_t;
24911Sigor@sysoev.ru 
25011Sigor@sysoev.ru 
251343Smax.romanov@nginx.com typedef void (*nxt_port_post_handler_t)(nxt_task_t *task, nxt_port_t *port,
252343Smax.romanov@nginx.com     void *data);
253343Smax.romanov@nginx.com 
254197Smax.romanov@nginx.com nxt_port_t *nxt_port_new(nxt_task_t *task, nxt_port_id_t id, nxt_pid_t pid,
255163Smax.romanov@nginx.com     nxt_process_type_t type);
256163Smax.romanov@nginx.com 
257141Smax.romanov@nginx.com nxt_port_id_t nxt_port_get_next_id(void);
258141Smax.romanov@nginx.com void nxt_port_reset_next_id(void);
259141Smax.romanov@nginx.com 
26014Sigor@sysoev.ru nxt_int_t nxt_port_socket_init(nxt_task_t *task, nxt_port_t *port,
26114Sigor@sysoev.ru     size_t max_size);
26214Sigor@sysoev.ru void nxt_port_destroy(nxt_port_t *port);
263343Smax.romanov@nginx.com void nxt_port_close(nxt_task_t *task, nxt_port_t *port);
26414Sigor@sysoev.ru void nxt_port_write_enable(nxt_task_t *task, nxt_port_t *port);
26514Sigor@sysoev.ru void nxt_port_write_close(nxt_port_t *port);
26614Sigor@sysoev.ru void nxt_port_read_enable(nxt_task_t *task, nxt_port_t *port);
26714Sigor@sysoev.ru void nxt_port_read_close(nxt_port_t *port);
268423Smax.romanov@nginx.com nxt_int_t nxt_port_socket_twrite(nxt_task_t *task, nxt_port_t *port,
26942Smax.romanov@nginx.com     nxt_uint_t type, nxt_fd_t fd, uint32_t stream, nxt_port_id_t reply_port,
270423Smax.romanov@nginx.com     nxt_buf_t *b, void *tracking);
271423Smax.romanov@nginx.com 
272423Smax.romanov@nginx.com nxt_inline nxt_int_t
273423Smax.romanov@nginx.com nxt_port_socket_write(nxt_task_t *task, nxt_port_t *port,
274423Smax.romanov@nginx.com     nxt_uint_t type, nxt_fd_t fd, uint32_t stream, nxt_port_id_t reply_port,
275423Smax.romanov@nginx.com     nxt_buf_t *b)
276423Smax.romanov@nginx.com {
277423Smax.romanov@nginx.com     return nxt_port_socket_twrite(task, port, type, fd, stream, reply_port, b,
278423Smax.romanov@nginx.com                                   NULL);
279423Smax.romanov@nginx.com }
28014Sigor@sysoev.ru 
281141Smax.romanov@nginx.com void nxt_port_enable(nxt_task_t *task, nxt_port_t *port,
2821302St.nateldemoura@f5.com     const nxt_port_handlers_t *handlers);
28381Smax.romanov@nginx.com nxt_int_t nxt_port_send_port(nxt_task_t *task, nxt_port_t *port,
284141Smax.romanov@nginx.com     nxt_port_t *new_port, uint32_t stream);
28520Sigor@sysoev.ru void nxt_port_change_log_file(nxt_task_t *task, nxt_runtime_t *rt,
28611Sigor@sysoev.ru     nxt_uint_t slot, nxt_fd_t fd);
28711Sigor@sysoev.ru 
28814Sigor@sysoev.ru void nxt_port_quit_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg);
28914Sigor@sysoev.ru void nxt_port_new_port_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg);
290320Smax.romanov@nginx.com void nxt_port_process_ready_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg);
29114Sigor@sysoev.ru void nxt_port_change_log_file_handler(nxt_task_t *task,
29211Sigor@sysoev.ru     nxt_port_recv_msg_t *msg);
29342Smax.romanov@nginx.com void nxt_port_mmap_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg);
29414Sigor@sysoev.ru void nxt_port_data_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg);
295125Smax.romanov@nginx.com void nxt_port_remove_pid_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg);
29614Sigor@sysoev.ru void nxt_port_empty_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg);
29711Sigor@sysoev.ru 
298343Smax.romanov@nginx.com nxt_int_t nxt_port_post(nxt_task_t *task, nxt_port_t *port,
299343Smax.romanov@nginx.com     nxt_port_post_handler_t handler, void *data);
300343Smax.romanov@nginx.com void nxt_port_use(nxt_task_t *task, nxt_port_t *port, int i);
30111Sigor@sysoev.ru 
302425Smax.romanov@nginx.com nxt_inline void nxt_port_inc_use(nxt_port_t *port)
303425Smax.romanov@nginx.com {
304425Smax.romanov@nginx.com     nxt_atomic_fetch_add(&port->use_count, 1);
305425Smax.romanov@nginx.com }
306425Smax.romanov@nginx.com 
30711Sigor@sysoev.ru #endif /* _NXT_PORT_H_INCLUDED_ */
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