xref: /unit/src/nxt_controller.c (revision 314)
120Sigor@sysoev.ru 
220Sigor@sysoev.ru /*
320Sigor@sysoev.ru  * Copyright (C) Igor Sysoev
420Sigor@sysoev.ru  * Copyright (C) Valentin V. Bartenev
520Sigor@sysoev.ru  * Copyright (C) NGINX, Inc.
620Sigor@sysoev.ru  */
720Sigor@sysoev.ru 
820Sigor@sysoev.ru #include <nxt_main.h>
920Sigor@sysoev.ru #include <nxt_runtime.h>
10240Sigor@sysoev.ru #include <nxt_main_process.h>
1129Svbart@nginx.com #include <nxt_conf.h>
1220Sigor@sysoev.ru 
1320Sigor@sysoev.ru 
1427Svbart@nginx.com typedef struct {
15106Svbart@nginx.com     nxt_conf_value_t  *root;
16106Svbart@nginx.com     nxt_mp_t          *pool;
1744Svbart@nginx.com } nxt_controller_conf_t;
1844Svbart@nginx.com 
1944Svbart@nginx.com 
2044Svbart@nginx.com typedef struct {
2127Svbart@nginx.com     nxt_http_request_parse_t  parser;
2227Svbart@nginx.com     size_t                    length;
2344Svbart@nginx.com     nxt_controller_conf_t     conf;
24140Svbart@nginx.com     nxt_conn_t                *conn;
25140Svbart@nginx.com     nxt_queue_link_t          link;
2627Svbart@nginx.com } nxt_controller_request_t;
2727Svbart@nginx.com 
2827Svbart@nginx.com 
2944Svbart@nginx.com typedef struct {
30208Svbart@nginx.com     nxt_uint_t        status;
31106Svbart@nginx.com     nxt_conf_value_t  *conf;
32208Svbart@nginx.com 
33208Svbart@nginx.com     u_char            *title;
34208Svbart@nginx.com     u_char            *detail;
35208Svbart@nginx.com     ssize_t           offset;
36208Svbart@nginx.com     nxt_uint_t        line;
37208Svbart@nginx.com     nxt_uint_t        column;
3844Svbart@nginx.com } nxt_controller_response_t;
3944Svbart@nginx.com 
4044Svbart@nginx.com 
41248Svbart@nginx.com static void nxt_controller_process_new_port_handler(nxt_task_t *task,
42248Svbart@nginx.com     nxt_port_recv_msg_t *msg);
43249Svbart@nginx.com static nxt_int_t nxt_controller_conf_default(void);
44249Svbart@nginx.com static void nxt_controller_conf_init_handler(nxt_task_t *task,
45249Svbart@nginx.com     nxt_port_recv_msg_t *msg, void *data);
46249Svbart@nginx.com static nxt_int_t nxt_controller_conf_send(nxt_task_t *task,
47249Svbart@nginx.com     nxt_conf_value_t *conf, nxt_port_rpc_handler_t handler, void *data);
48248Svbart@nginx.com 
4920Sigor@sysoev.ru static void nxt_controller_conn_init(nxt_task_t *task, void *obj, void *data);
5020Sigor@sysoev.ru static void nxt_controller_conn_read(nxt_task_t *task, void *obj, void *data);
5162Sigor@sysoev.ru static nxt_msec_t nxt_controller_conn_timeout_value(nxt_conn_t *c,
5220Sigor@sysoev.ru     uintptr_t data);
5320Sigor@sysoev.ru static void nxt_controller_conn_read_error(nxt_task_t *task, void *obj,
5420Sigor@sysoev.ru     void *data);
5520Sigor@sysoev.ru static void nxt_controller_conn_read_timeout(nxt_task_t *task, void *obj,
5620Sigor@sysoev.ru     void *data);
5727Svbart@nginx.com static void nxt_controller_conn_body_read(nxt_task_t *task, void *obj,
5827Svbart@nginx.com     void *data);
5927Svbart@nginx.com static void nxt_controller_conn_write(nxt_task_t *task, void *obj, void *data);
6027Svbart@nginx.com static void nxt_controller_conn_write_error(nxt_task_t *task, void *obj,
6127Svbart@nginx.com     void *data);
6227Svbart@nginx.com static void nxt_controller_conn_write_timeout(nxt_task_t *task, void *obj,
6327Svbart@nginx.com     void *data);
6420Sigor@sysoev.ru static void nxt_controller_conn_close(nxt_task_t *task, void *obj, void *data);
6520Sigor@sysoev.ru static void nxt_controller_conn_free(nxt_task_t *task, void *obj, void *data);
6620Sigor@sysoev.ru 
6727Svbart@nginx.com static nxt_int_t nxt_controller_request_content_length(void *ctx,
6867Svbart@nginx.com     nxt_http_field_t *field, nxt_log_t *log);
6927Svbart@nginx.com 
7027Svbart@nginx.com static void nxt_controller_process_request(nxt_task_t *task,
71140Svbart@nginx.com     nxt_controller_request_t *req);
72238Svbart@nginx.com static void nxt_controller_conf_handler(nxt_task_t *task,
73238Svbart@nginx.com     nxt_port_recv_msg_t *msg, void *data);
74*314Svbart@nginx.com static void nxt_controller_conf_store(nxt_task_t *task,
75*314Svbart@nginx.com     nxt_conf_value_t *conf);
76140Svbart@nginx.com static void nxt_controller_response(nxt_task_t *task,
77140Svbart@nginx.com     nxt_controller_request_t *req, nxt_controller_response_t *resp);
78208Svbart@nginx.com static u_char *nxt_controller_date(u_char *buf, nxt_realtime_t *now,
79208Svbart@nginx.com     struct tm *tm, size_t size, const char *format);
8027Svbart@nginx.com 
8127Svbart@nginx.com 
8260Svbart@nginx.com static nxt_http_fields_hash_entry_t  nxt_controller_request_fields[] = {
8327Svbart@nginx.com     { nxt_string("Content-Length"),
8427Svbart@nginx.com       &nxt_controller_request_content_length, 0 },
8527Svbart@nginx.com 
8627Svbart@nginx.com     { nxt_null_string, NULL, 0 }
8727Svbart@nginx.com };
8827Svbart@nginx.com 
8960Svbart@nginx.com static nxt_http_fields_hash_t  *nxt_controller_fields_hash;
9027Svbart@nginx.com 
91*314Svbart@nginx.com static nxt_uint_t              nxt_controller_listening;
92238Svbart@nginx.com static nxt_controller_conf_t   nxt_controller_conf;
93238Svbart@nginx.com static nxt_queue_t             nxt_controller_waiting_requests;
9427Svbart@nginx.com 
9520Sigor@sysoev.ru 
9620Sigor@sysoev.ru static const nxt_event_conn_state_t  nxt_controller_conn_read_state;
9727Svbart@nginx.com static const nxt_event_conn_state_t  nxt_controller_conn_body_read_state;
9827Svbart@nginx.com static const nxt_event_conn_state_t  nxt_controller_conn_write_state;
9920Sigor@sysoev.ru static const nxt_event_conn_state_t  nxt_controller_conn_close_state;
10020Sigor@sysoev.ru 
10120Sigor@sysoev.ru 
102248Svbart@nginx.com nxt_port_handler_t  nxt_controller_process_port_handlers[] = {
103248Svbart@nginx.com     nxt_worker_process_quit_handler,
104248Svbart@nginx.com     nxt_controller_process_new_port_handler,
105248Svbart@nginx.com     nxt_port_change_log_file_handler,
106248Svbart@nginx.com     nxt_port_mmap_handler,
107248Svbart@nginx.com     nxt_port_data_handler,
108248Svbart@nginx.com     nxt_port_remove_pid_handler,
109248Svbart@nginx.com     NULL, /* NXT_PORT_MSG_READY        */
110248Svbart@nginx.com     NULL, /* NXT_PORT_MSG_START_WORKER */
111248Svbart@nginx.com     NULL, /* NXT_PORT_MSG_SOCKET       */
112248Svbart@nginx.com     NULL, /* NXT_PORT_MSG_MODULES      */
113248Svbart@nginx.com     nxt_port_rpc_handler,
114248Svbart@nginx.com     nxt_port_rpc_handler,
115248Svbart@nginx.com };
116248Svbart@nginx.com 
117248Svbart@nginx.com 
11820Sigor@sysoev.ru nxt_int_t
119141Smax.romanov@nginx.com nxt_controller_start(nxt_task_t *task, void *data)
12020Sigor@sysoev.ru {
121*314Svbart@nginx.com     nxt_mp_t                *mp;
122*314Svbart@nginx.com     nxt_str_t               *json;
123141Smax.romanov@nginx.com     nxt_runtime_t           *rt;
124*314Svbart@nginx.com     nxt_conf_value_t        *conf;
12527Svbart@nginx.com     nxt_http_fields_hash_t  *hash;
12627Svbart@nginx.com 
127141Smax.romanov@nginx.com     rt = task->thread->runtime;
128141Smax.romanov@nginx.com 
12960Svbart@nginx.com     hash = nxt_http_fields_hash_create(nxt_controller_request_fields,
13060Svbart@nginx.com                                        rt->mem_pool);
13127Svbart@nginx.com     if (nxt_slow_path(hash == NULL)) {
13227Svbart@nginx.com         return NXT_ERROR;
13327Svbart@nginx.com     }
13427Svbart@nginx.com 
13560Svbart@nginx.com     nxt_controller_fields_hash = hash;
136248Svbart@nginx.com     nxt_queue_init(&nxt_controller_waiting_requests);
13727Svbart@nginx.com 
138*314Svbart@nginx.com     json = data;
139*314Svbart@nginx.com 
140*314Svbart@nginx.com     if (json->length == 0) {
141*314Svbart@nginx.com         return NXT_OK;
142*314Svbart@nginx.com     }
143*314Svbart@nginx.com 
144*314Svbart@nginx.com     mp = nxt_mp_create(1024, 128, 256, 32);
145*314Svbart@nginx.com     if (nxt_slow_path(mp == NULL)) {
146*314Svbart@nginx.com         return NXT_ERROR;
147*314Svbart@nginx.com     }
148*314Svbart@nginx.com 
149*314Svbart@nginx.com     conf = nxt_conf_json_parse_str(mp, json);
150*314Svbart@nginx.com     nxt_free(json->start);
151*314Svbart@nginx.com 
152*314Svbart@nginx.com     if (nxt_slow_path(conf == NULL)) {
153*314Svbart@nginx.com         nxt_log(task, NXT_LOG_ALERT,
154*314Svbart@nginx.com                 "failed to restore previous configuration: "
155*314Svbart@nginx.com                 "file is corrupted or not enough memory");
156*314Svbart@nginx.com 
157*314Svbart@nginx.com         nxt_mp_destroy(mp);
158*314Svbart@nginx.com         return NXT_OK;
159*314Svbart@nginx.com     }
160*314Svbart@nginx.com 
161*314Svbart@nginx.com     if (nxt_slow_path(nxt_conf_validate(conf) != NXT_OK)) {
162*314Svbart@nginx.com         nxt_log(task, NXT_LOG_ALERT,
163*314Svbart@nginx.com                 "failed to restore previous configuration: "
164*314Svbart@nginx.com                 "invalid configuration");
165*314Svbart@nginx.com 
166*314Svbart@nginx.com         nxt_mp_destroy(mp);
167*314Svbart@nginx.com         return NXT_OK;
168*314Svbart@nginx.com     }
169*314Svbart@nginx.com 
170*314Svbart@nginx.com 
171*314Svbart@nginx.com     nxt_controller_conf.root = conf;
172*314Svbart@nginx.com     nxt_controller_conf.pool = mp;
173*314Svbart@nginx.com 
174248Svbart@nginx.com     return NXT_OK;
175248Svbart@nginx.com }
176248Svbart@nginx.com 
177248Svbart@nginx.com 
178248Svbart@nginx.com static void
179248Svbart@nginx.com nxt_controller_process_new_port_handler(nxt_task_t *task,
180248Svbart@nginx.com     nxt_port_recv_msg_t *msg)
181248Svbart@nginx.com {
182249Svbart@nginx.com     nxt_int_t         rc;
183248Svbart@nginx.com     nxt_runtime_t     *rt;
184248Svbart@nginx.com     nxt_conf_value_t  *conf;
185248Svbart@nginx.com 
186248Svbart@nginx.com     nxt_port_new_port_handler(task, msg);
187248Svbart@nginx.com 
188249Svbart@nginx.com     if (msg->new_port->type != NXT_PROCESS_ROUTER) {
189248Svbart@nginx.com         return;
19020Sigor@sysoev.ru     }
19120Sigor@sysoev.ru 
192249Svbart@nginx.com     conf = nxt_controller_conf.root;
193249Svbart@nginx.com 
194249Svbart@nginx.com     if (conf != NULL) {
195249Svbart@nginx.com         rc = nxt_controller_conf_send(task, conf,
196249Svbart@nginx.com                                       nxt_controller_conf_init_handler, NULL);
19744Svbart@nginx.com 
198249Svbart@nginx.com         if (nxt_fast_path(rc == NXT_OK)) {
199249Svbart@nginx.com             return;
200249Svbart@nginx.com         }
201249Svbart@nginx.com 
202249Svbart@nginx.com         nxt_mp_destroy(nxt_controller_conf.pool);
203249Svbart@nginx.com 
204249Svbart@nginx.com         if (nxt_slow_path(nxt_controller_conf_default() != NXT_OK)) {
205249Svbart@nginx.com             nxt_abort();
206249Svbart@nginx.com         }
20744Svbart@nginx.com     }
20844Svbart@nginx.com 
209249Svbart@nginx.com     if (nxt_slow_path(nxt_controller_conf_default() != NXT_OK)) {
210248Svbart@nginx.com         nxt_abort();
21144Svbart@nginx.com     }
21244Svbart@nginx.com 
213248Svbart@nginx.com     rt = task->thread->runtime;
214140Svbart@nginx.com 
215248Svbart@nginx.com     if (nxt_slow_path(nxt_listen_event(task, rt->controller_socket) == NULL)) {
216248Svbart@nginx.com         nxt_abort();
217248Svbart@nginx.com     }
218*314Svbart@nginx.com 
219*314Svbart@nginx.com     nxt_controller_listening = 1;
22020Sigor@sysoev.ru }
22120Sigor@sysoev.ru 
22220Sigor@sysoev.ru 
223249Svbart@nginx.com static nxt_int_t
224249Svbart@nginx.com nxt_controller_conf_default(void)
225249Svbart@nginx.com {
226249Svbart@nginx.com     nxt_mp_t          *mp;
227249Svbart@nginx.com     nxt_conf_value_t  *conf;
228249Svbart@nginx.com 
229249Svbart@nginx.com     static const nxt_str_t json
230249Svbart@nginx.com         = nxt_string("{ \"listeners\": {}, \"applications\": {} }");
231249Svbart@nginx.com 
232249Svbart@nginx.com     mp = nxt_mp_create(1024, 128, 256, 32);
233249Svbart@nginx.com 
234249Svbart@nginx.com     if (nxt_slow_path(mp == NULL)) {
235249Svbart@nginx.com         return NXT_ERROR;
236249Svbart@nginx.com     }
237249Svbart@nginx.com 
238249Svbart@nginx.com     conf = nxt_conf_json_parse_str(mp, &json);
239249Svbart@nginx.com 
240249Svbart@nginx.com     if (nxt_slow_path(conf == NULL)) {
241249Svbart@nginx.com         return NXT_ERROR;
242249Svbart@nginx.com     }
243249Svbart@nginx.com 
244249Svbart@nginx.com     nxt_controller_conf.root = conf;
245249Svbart@nginx.com     nxt_controller_conf.pool = mp;
246249Svbart@nginx.com 
247249Svbart@nginx.com     return NXT_OK;
248249Svbart@nginx.com }
249249Svbart@nginx.com 
250249Svbart@nginx.com 
251249Svbart@nginx.com static void
252249Svbart@nginx.com nxt_controller_conf_init_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg,
253249Svbart@nginx.com     void *data)
254249Svbart@nginx.com {
255*314Svbart@nginx.com     nxt_runtime_t  *rt;
256*314Svbart@nginx.com 
257249Svbart@nginx.com     if (msg->port_msg.type != NXT_PORT_MSG_RPC_READY) {
258*314Svbart@nginx.com         nxt_log(task, NXT_LOG_ALERT, "failed to apply previous configuration");
259*314Svbart@nginx.com 
260249Svbart@nginx.com         nxt_mp_destroy(nxt_controller_conf.pool);
261249Svbart@nginx.com 
262249Svbart@nginx.com         if (nxt_slow_path(nxt_controller_conf_default() != NXT_OK)) {
263249Svbart@nginx.com             nxt_abort();
264249Svbart@nginx.com         }
265249Svbart@nginx.com     }
266*314Svbart@nginx.com 
267*314Svbart@nginx.com     if (nxt_controller_listening == 0) {
268*314Svbart@nginx.com         rt = task->thread->runtime;
269*314Svbart@nginx.com 
270*314Svbart@nginx.com         if (nxt_slow_path(nxt_listen_event(task, rt->controller_socket)
271*314Svbart@nginx.com                           == NULL))
272*314Svbart@nginx.com         {
273*314Svbart@nginx.com             nxt_abort();
274*314Svbart@nginx.com         }
275*314Svbart@nginx.com 
276*314Svbart@nginx.com         nxt_controller_listening = 1;
277*314Svbart@nginx.com     }
278249Svbart@nginx.com }
279249Svbart@nginx.com 
280249Svbart@nginx.com 
281249Svbart@nginx.com static nxt_int_t
282249Svbart@nginx.com nxt_controller_conf_send(nxt_task_t *task, nxt_conf_value_t *conf,
283249Svbart@nginx.com     nxt_port_rpc_handler_t handler, void *data)
284249Svbart@nginx.com {
285249Svbart@nginx.com     size_t         size;
286249Svbart@nginx.com     uint32_t       stream;
287249Svbart@nginx.com     nxt_int_t      rc;
288249Svbart@nginx.com     nxt_buf_t      *b;
289249Svbart@nginx.com     nxt_port_t     *router_port, *controller_port;
290249Svbart@nginx.com     nxt_runtime_t  *rt;
291249Svbart@nginx.com 
292249Svbart@nginx.com     rt = task->thread->runtime;
293249Svbart@nginx.com 
294249Svbart@nginx.com     router_port = rt->port_by_type[NXT_PROCESS_ROUTER];
295249Svbart@nginx.com 
296249Svbart@nginx.com     if (nxt_slow_path(router_port == NULL)) {
297249Svbart@nginx.com         return NXT_DECLINED;
298249Svbart@nginx.com     }
299249Svbart@nginx.com 
300249Svbart@nginx.com     controller_port = rt->port_by_type[NXT_PROCESS_CONTROLLER];
301249Svbart@nginx.com 
302249Svbart@nginx.com     size = nxt_conf_json_length(conf, NULL);
303249Svbart@nginx.com 
304249Svbart@nginx.com     b = nxt_port_mmap_get_buf(task, router_port, size);
305249Svbart@nginx.com 
306249Svbart@nginx.com     b->mem.free = nxt_conf_json_print(b->mem.free, conf, NULL);
307249Svbart@nginx.com 
308249Svbart@nginx.com     stream = nxt_port_rpc_register_handler(task, controller_port,
309249Svbart@nginx.com                                            handler, handler,
310249Svbart@nginx.com                                            router_port->pid, data);
311249Svbart@nginx.com 
312249Svbart@nginx.com     rc = nxt_port_socket_write(task, router_port, NXT_PORT_MSG_DATA_LAST, -1,
313249Svbart@nginx.com                                stream, controller_port->id, b);
314249Svbart@nginx.com 
315249Svbart@nginx.com     if (nxt_slow_path(rc != NXT_OK)) {
316249Svbart@nginx.com         nxt_port_rpc_cancel(task, controller_port, stream);
317249Svbart@nginx.com         return NXT_ERROR;
318249Svbart@nginx.com     }
319249Svbart@nginx.com 
320249Svbart@nginx.com     return NXT_OK;
321249Svbart@nginx.com }
322249Svbart@nginx.com 
323249Svbart@nginx.com 
32420Sigor@sysoev.ru nxt_int_t
32520Sigor@sysoev.ru nxt_runtime_controller_socket(nxt_task_t *task, nxt_runtime_t *rt)
32620Sigor@sysoev.ru {
32720Sigor@sysoev.ru     nxt_sockaddr_t       *sa;
32820Sigor@sysoev.ru     nxt_listen_socket_t  *ls;
32920Sigor@sysoev.ru 
33020Sigor@sysoev.ru     sa = rt->controller_listen;
33120Sigor@sysoev.ru 
33265Sigor@sysoev.ru     ls = nxt_mp_alloc(rt->mem_pool, sizeof(nxt_listen_socket_t));
33320Sigor@sysoev.ru     if (ls == NULL) {
33420Sigor@sysoev.ru         return NXT_ERROR;
33520Sigor@sysoev.ru     }
33620Sigor@sysoev.ru 
33720Sigor@sysoev.ru     ls->sockaddr = nxt_sockaddr_create(rt->mem_pool, &sa->u.sockaddr,
33820Sigor@sysoev.ru                                        sa->socklen, sa->length);
33920Sigor@sysoev.ru     if (ls->sockaddr == NULL) {
34020Sigor@sysoev.ru         return NXT_ERROR;
34120Sigor@sysoev.ru     }
34220Sigor@sysoev.ru 
34320Sigor@sysoev.ru     ls->sockaddr->type = sa->type;
344312Sigor@sysoev.ru     nxt_sockaddr_text(ls->sockaddr);
34520Sigor@sysoev.ru 
346312Sigor@sysoev.ru     nxt_listen_socket_remote_size(ls, sa);
34720Sigor@sysoev.ru 
34820Sigor@sysoev.ru     ls->socket = -1;
34920Sigor@sysoev.ru     ls->backlog = NXT_LISTEN_BACKLOG;
35020Sigor@sysoev.ru     ls->read_after_accept = 1;
35120Sigor@sysoev.ru     ls->flags = NXT_NONBLOCK;
35220Sigor@sysoev.ru 
35320Sigor@sysoev.ru #if 0
35420Sigor@sysoev.ru     /* STUB */
35565Sigor@sysoev.ru     wq = nxt_mp_zget(cf->mem_pool, sizeof(nxt_work_queue_t));
35620Sigor@sysoev.ru     if (wq == NULL) {
35720Sigor@sysoev.ru         return NXT_ERROR;
35820Sigor@sysoev.ru     }
35920Sigor@sysoev.ru     nxt_work_queue_name(wq, "listen");
36020Sigor@sysoev.ru     /**/
36120Sigor@sysoev.ru 
36220Sigor@sysoev.ru     ls->work_queue = wq;
36320Sigor@sysoev.ru #endif
36420Sigor@sysoev.ru     ls->handler = nxt_controller_conn_init;
36520Sigor@sysoev.ru 
36620Sigor@sysoev.ru     if (nxt_listen_socket_create(task, ls, 0) != NXT_OK) {
36720Sigor@sysoev.ru         return NXT_ERROR;
36820Sigor@sysoev.ru     }
36920Sigor@sysoev.ru 
37020Sigor@sysoev.ru     rt->controller_socket = ls;
37120Sigor@sysoev.ru 
37220Sigor@sysoev.ru     return NXT_OK;
37320Sigor@sysoev.ru }
37420Sigor@sysoev.ru 
37520Sigor@sysoev.ru 
37620Sigor@sysoev.ru static void
37720Sigor@sysoev.ru nxt_controller_conn_init(nxt_task_t *task, void *obj, void *data)
37820Sigor@sysoev.ru {
37927Svbart@nginx.com     nxt_buf_t                 *b;
38062Sigor@sysoev.ru     nxt_conn_t                *c;
38127Svbart@nginx.com     nxt_event_engine_t        *engine;
38227Svbart@nginx.com     nxt_controller_request_t  *r;
38320Sigor@sysoev.ru 
38420Sigor@sysoev.ru     c = obj;
38520Sigor@sysoev.ru 
38620Sigor@sysoev.ru     nxt_debug(task, "controller conn init fd:%d", c->socket.fd);
38720Sigor@sysoev.ru 
38865Sigor@sysoev.ru     r = nxt_mp_zget(c->mem_pool, sizeof(nxt_controller_request_t));
38927Svbart@nginx.com     if (nxt_slow_path(r == NULL)) {
39027Svbart@nginx.com         nxt_controller_conn_free(task, c, NULL);
39127Svbart@nginx.com         return;
39227Svbart@nginx.com     }
39327Svbart@nginx.com 
394140Svbart@nginx.com     r->conn = c;
395140Svbart@nginx.com 
39660Svbart@nginx.com     if (nxt_slow_path(nxt_http_parse_request_init(&r->parser, c->mem_pool)
39760Svbart@nginx.com                       != NXT_OK))
39860Svbart@nginx.com     {
39960Svbart@nginx.com         nxt_controller_conn_free(task, c, NULL);
40060Svbart@nginx.com         return;
40160Svbart@nginx.com     }
40227Svbart@nginx.com 
40367Svbart@nginx.com     r->parser.fields_hash = nxt_controller_fields_hash;
40467Svbart@nginx.com 
40520Sigor@sysoev.ru     b = nxt_buf_mem_alloc(c->mem_pool, 1024, 0);
40620Sigor@sysoev.ru     if (nxt_slow_path(b == NULL)) {
40720Sigor@sysoev.ru         nxt_controller_conn_free(task, c, NULL);
40820Sigor@sysoev.ru         return;
40920Sigor@sysoev.ru     }
41020Sigor@sysoev.ru 
41120Sigor@sysoev.ru     c->read = b;
41227Svbart@nginx.com     c->socket.data = r;
41320Sigor@sysoev.ru     c->socket.read_ready = 1;
41420Sigor@sysoev.ru     c->read_state = &nxt_controller_conn_read_state;
41520Sigor@sysoev.ru 
41620Sigor@sysoev.ru     engine = task->thread->engine;
41720Sigor@sysoev.ru     c->read_work_queue = &engine->read_work_queue;
41827Svbart@nginx.com     c->write_work_queue = &engine->write_work_queue;
41920Sigor@sysoev.ru 
42062Sigor@sysoev.ru     nxt_conn_read(engine, c);
42120Sigor@sysoev.ru }
42220Sigor@sysoev.ru 
42320Sigor@sysoev.ru 
42420Sigor@sysoev.ru static const nxt_event_conn_state_t  nxt_controller_conn_read_state
42520Sigor@sysoev.ru     nxt_aligned(64) =
42620Sigor@sysoev.ru {
42756Sigor@sysoev.ru     .ready_handler = nxt_controller_conn_read,
42856Sigor@sysoev.ru     .close_handler = nxt_controller_conn_close,
42956Sigor@sysoev.ru     .error_handler = nxt_controller_conn_read_error,
43020Sigor@sysoev.ru 
43156Sigor@sysoev.ru     .timer_handler = nxt_controller_conn_read_timeout,
43256Sigor@sysoev.ru     .timer_value = nxt_controller_conn_timeout_value,
43356Sigor@sysoev.ru     .timer_data = 60 * 1000,
43420Sigor@sysoev.ru };
43520Sigor@sysoev.ru 
43620Sigor@sysoev.ru 
43720Sigor@sysoev.ru static void
43820Sigor@sysoev.ru nxt_controller_conn_read(nxt_task_t *task, void *obj, void *data)
43920Sigor@sysoev.ru {
44027Svbart@nginx.com     size_t                    preread;
44127Svbart@nginx.com     nxt_buf_t                 *b;
44227Svbart@nginx.com     nxt_int_t                 rc;
44362Sigor@sysoev.ru     nxt_conn_t                *c;
44427Svbart@nginx.com     nxt_controller_request_t  *r;
44520Sigor@sysoev.ru 
44620Sigor@sysoev.ru     c = obj;
44727Svbart@nginx.com     r = data;
44820Sigor@sysoev.ru 
44920Sigor@sysoev.ru     nxt_debug(task, "controller conn read");
45020Sigor@sysoev.ru 
45127Svbart@nginx.com     nxt_queue_remove(&c->link);
45227Svbart@nginx.com     nxt_queue_self(&c->link);
45327Svbart@nginx.com 
45427Svbart@nginx.com     b = c->read;
45527Svbart@nginx.com 
45627Svbart@nginx.com     rc = nxt_http_parse_request(&r->parser, &b->mem);
45727Svbart@nginx.com 
45827Svbart@nginx.com     if (nxt_slow_path(rc != NXT_DONE)) {
45927Svbart@nginx.com 
46027Svbart@nginx.com         if (rc == NXT_AGAIN) {
46127Svbart@nginx.com             if (nxt_buf_mem_free_size(&b->mem) == 0) {
46227Svbart@nginx.com                 nxt_log(task, NXT_LOG_ERR, "too long request headers");
46327Svbart@nginx.com                 nxt_controller_conn_close(task, c, r);
46427Svbart@nginx.com                 return;
46527Svbart@nginx.com             }
46627Svbart@nginx.com 
46762Sigor@sysoev.ru             nxt_conn_read(task->thread->engine, c);
46827Svbart@nginx.com             return;
46927Svbart@nginx.com         }
47027Svbart@nginx.com 
47127Svbart@nginx.com         /* rc == NXT_ERROR */
47227Svbart@nginx.com 
47327Svbart@nginx.com         nxt_log(task, NXT_LOG_ERR, "parsing error");
47427Svbart@nginx.com 
47527Svbart@nginx.com         nxt_controller_conn_close(task, c, r);
47627Svbart@nginx.com         return;
47727Svbart@nginx.com     }
47827Svbart@nginx.com 
47967Svbart@nginx.com     rc = nxt_http_fields_process(r->parser.fields, r, task->log);
48060Svbart@nginx.com 
48160Svbart@nginx.com     if (nxt_slow_path(rc != NXT_OK)) {
48260Svbart@nginx.com         nxt_controller_conn_close(task, c, r);
48360Svbart@nginx.com         return;
48460Svbart@nginx.com     }
48560Svbart@nginx.com 
48627Svbart@nginx.com     preread = nxt_buf_mem_used_size(&b->mem);
48727Svbart@nginx.com 
48827Svbart@nginx.com     nxt_debug(task, "controller request header parsing complete, "
489107Svbart@nginx.com                     "body length: %uz, preread: %uz",
49027Svbart@nginx.com                     r->length, preread);
49127Svbart@nginx.com 
49227Svbart@nginx.com     if (preread >= r->length) {
493140Svbart@nginx.com         nxt_controller_process_request(task, r);
49427Svbart@nginx.com         return;
49527Svbart@nginx.com     }
49627Svbart@nginx.com 
49727Svbart@nginx.com     if (r->length - preread > (size_t) nxt_buf_mem_free_size(&b->mem)) {
49827Svbart@nginx.com         b = nxt_buf_mem_alloc(c->mem_pool, r->length, 0);
49927Svbart@nginx.com         if (nxt_slow_path(b == NULL)) {
50027Svbart@nginx.com             nxt_controller_conn_free(task, c, NULL);
50127Svbart@nginx.com             return;
50227Svbart@nginx.com         }
50327Svbart@nginx.com 
50427Svbart@nginx.com         b->mem.free = nxt_cpymem(b->mem.free, c->read->mem.pos, preread);
50527Svbart@nginx.com 
50627Svbart@nginx.com         c->read = b;
50727Svbart@nginx.com     }
50827Svbart@nginx.com 
50927Svbart@nginx.com     c->read_state = &nxt_controller_conn_body_read_state;
51027Svbart@nginx.com 
51162Sigor@sysoev.ru     nxt_conn_read(task->thread->engine, c);
51220Sigor@sysoev.ru }
51320Sigor@sysoev.ru 
51420Sigor@sysoev.ru 
51520Sigor@sysoev.ru static nxt_msec_t
51662Sigor@sysoev.ru nxt_controller_conn_timeout_value(nxt_conn_t *c, uintptr_t data)
51720Sigor@sysoev.ru {
51820Sigor@sysoev.ru     return (nxt_msec_t) data;
51920Sigor@sysoev.ru }
52020Sigor@sysoev.ru 
52120Sigor@sysoev.ru 
52220Sigor@sysoev.ru static void
52320Sigor@sysoev.ru nxt_controller_conn_read_error(nxt_task_t *task, void *obj, void *data)
52420Sigor@sysoev.ru {
52562Sigor@sysoev.ru     nxt_conn_t  *c;
52620Sigor@sysoev.ru 
52720Sigor@sysoev.ru     c = obj;
52820Sigor@sysoev.ru 
52920Sigor@sysoev.ru     nxt_debug(task, "controller conn read error");
53020Sigor@sysoev.ru 
53127Svbart@nginx.com     nxt_controller_conn_close(task, c, data);
53220Sigor@sysoev.ru }
53320Sigor@sysoev.ru 
53420Sigor@sysoev.ru 
53520Sigor@sysoev.ru static void
53620Sigor@sysoev.ru nxt_controller_conn_read_timeout(nxt_task_t *task, void *obj, void *data)
53720Sigor@sysoev.ru {
53862Sigor@sysoev.ru     nxt_timer_t  *timer;
53962Sigor@sysoev.ru     nxt_conn_t   *c;
54020Sigor@sysoev.ru 
54162Sigor@sysoev.ru     timer = obj;
54220Sigor@sysoev.ru 
54362Sigor@sysoev.ru     c = nxt_read_timer_conn(timer);
54420Sigor@sysoev.ru     c->socket.timedout = 1;
54520Sigor@sysoev.ru     c->socket.closed = 1;
54620Sigor@sysoev.ru 
54720Sigor@sysoev.ru     nxt_debug(task, "controller conn read timeout");
54820Sigor@sysoev.ru 
54927Svbart@nginx.com     nxt_controller_conn_close(task, c, data);
55027Svbart@nginx.com }
55127Svbart@nginx.com 
55227Svbart@nginx.com 
55327Svbart@nginx.com static const nxt_event_conn_state_t  nxt_controller_conn_body_read_state
55427Svbart@nginx.com     nxt_aligned(64) =
55527Svbart@nginx.com {
55656Sigor@sysoev.ru     .ready_handler = nxt_controller_conn_body_read,
55756Sigor@sysoev.ru     .close_handler = nxt_controller_conn_close,
55856Sigor@sysoev.ru     .error_handler = nxt_controller_conn_read_error,
55927Svbart@nginx.com 
56056Sigor@sysoev.ru     .timer_handler = nxt_controller_conn_read_timeout,
56156Sigor@sysoev.ru     .timer_value = nxt_controller_conn_timeout_value,
56256Sigor@sysoev.ru     .timer_data = 60 * 1000,
56356Sigor@sysoev.ru     .timer_autoreset = 1,
56427Svbart@nginx.com };
56527Svbart@nginx.com 
56627Svbart@nginx.com 
56727Svbart@nginx.com static void
56827Svbart@nginx.com nxt_controller_conn_body_read(nxt_task_t *task, void *obj, void *data)
56927Svbart@nginx.com {
570107Svbart@nginx.com     size_t                    read;
571107Svbart@nginx.com     nxt_buf_t                 *b;
572107Svbart@nginx.com     nxt_conn_t                *c;
573107Svbart@nginx.com     nxt_controller_request_t  *r;
57427Svbart@nginx.com 
57527Svbart@nginx.com     c = obj;
576107Svbart@nginx.com     r = data;
57727Svbart@nginx.com     b = c->read;
57827Svbart@nginx.com 
579107Svbart@nginx.com     read = nxt_buf_mem_used_size(&b->mem);
58027Svbart@nginx.com 
581107Svbart@nginx.com     nxt_debug(task, "controller conn body read: %uz of %uz",
582107Svbart@nginx.com               read, r->length);
58327Svbart@nginx.com 
584107Svbart@nginx.com     if (read >= r->length) {
585140Svbart@nginx.com         nxt_controller_process_request(task, r);
58627Svbart@nginx.com         return;
58727Svbart@nginx.com     }
58827Svbart@nginx.com 
58962Sigor@sysoev.ru     nxt_conn_read(task->thread->engine, c);
59027Svbart@nginx.com }
59127Svbart@nginx.com 
59227Svbart@nginx.com 
59327Svbart@nginx.com static const nxt_event_conn_state_t  nxt_controller_conn_write_state
59427Svbart@nginx.com     nxt_aligned(64) =
59527Svbart@nginx.com {
59656Sigor@sysoev.ru     .ready_handler = nxt_controller_conn_write,
59756Sigor@sysoev.ru     .error_handler = nxt_controller_conn_write_error,
59827Svbart@nginx.com 
59956Sigor@sysoev.ru     .timer_handler = nxt_controller_conn_write_timeout,
60056Sigor@sysoev.ru     .timer_value = nxt_controller_conn_timeout_value,
60156Sigor@sysoev.ru     .timer_data = 60 * 1000,
60256Sigor@sysoev.ru     .timer_autoreset = 1,
60327Svbart@nginx.com };
60427Svbart@nginx.com 
60527Svbart@nginx.com 
60627Svbart@nginx.com static void
60727Svbart@nginx.com nxt_controller_conn_write(nxt_task_t *task, void *obj, void *data)
60827Svbart@nginx.com {
60962Sigor@sysoev.ru     nxt_buf_t   *b;
61062Sigor@sysoev.ru     nxt_conn_t  *c;
61127Svbart@nginx.com 
61227Svbart@nginx.com     c = obj;
61327Svbart@nginx.com 
61427Svbart@nginx.com     nxt_debug(task, "controller conn write");
61527Svbart@nginx.com 
61627Svbart@nginx.com     b = c->write;
61727Svbart@nginx.com 
61827Svbart@nginx.com     if (b->mem.pos != b->mem.free) {
61962Sigor@sysoev.ru         nxt_conn_write(task->thread->engine, c);
62027Svbart@nginx.com         return;
62127Svbart@nginx.com     }
62227Svbart@nginx.com 
62327Svbart@nginx.com     nxt_debug(task, "controller conn write complete");
62427Svbart@nginx.com 
62527Svbart@nginx.com     nxt_controller_conn_close(task, c, data);
62627Svbart@nginx.com }
62727Svbart@nginx.com 
62827Svbart@nginx.com 
62927Svbart@nginx.com static void
63027Svbart@nginx.com nxt_controller_conn_write_error(nxt_task_t *task, void *obj, void *data)
63127Svbart@nginx.com {
63262Sigor@sysoev.ru     nxt_conn_t  *c;
63327Svbart@nginx.com 
63427Svbart@nginx.com     c = obj;
63527Svbart@nginx.com 
63627Svbart@nginx.com     nxt_debug(task, "controller conn write error");
63727Svbart@nginx.com 
63827Svbart@nginx.com     nxt_controller_conn_close(task, c, data);
63927Svbart@nginx.com }
64027Svbart@nginx.com 
64127Svbart@nginx.com 
64227Svbart@nginx.com static void
64327Svbart@nginx.com nxt_controller_conn_write_timeout(nxt_task_t *task, void *obj, void *data)
64427Svbart@nginx.com {
64562Sigor@sysoev.ru     nxt_conn_t   *c;
64662Sigor@sysoev.ru     nxt_timer_t  *timer;
64727Svbart@nginx.com 
64862Sigor@sysoev.ru     timer = obj;
64927Svbart@nginx.com 
65062Sigor@sysoev.ru     c = nxt_write_timer_conn(timer);
65127Svbart@nginx.com     c->socket.timedout = 1;
65227Svbart@nginx.com     c->socket.closed = 1;
65327Svbart@nginx.com 
65427Svbart@nginx.com     nxt_debug(task, "controller conn write timeout");
65527Svbart@nginx.com 
65627Svbart@nginx.com     nxt_controller_conn_close(task, c, data);
65720Sigor@sysoev.ru }
65820Sigor@sysoev.ru 
65920Sigor@sysoev.ru 
66020Sigor@sysoev.ru static const nxt_event_conn_state_t  nxt_controller_conn_close_state
66120Sigor@sysoev.ru     nxt_aligned(64) =
66220Sigor@sysoev.ru {
66356Sigor@sysoev.ru     .ready_handler = nxt_controller_conn_free,
66420Sigor@sysoev.ru };
66520Sigor@sysoev.ru 
66620Sigor@sysoev.ru 
66720Sigor@sysoev.ru static void
66820Sigor@sysoev.ru nxt_controller_conn_close(nxt_task_t *task, void *obj, void *data)
66920Sigor@sysoev.ru {
67062Sigor@sysoev.ru     nxt_conn_t  *c;
67120Sigor@sysoev.ru 
67220Sigor@sysoev.ru     c = obj;
67320Sigor@sysoev.ru 
67420Sigor@sysoev.ru     nxt_debug(task, "controller conn close");
67520Sigor@sysoev.ru 
67627Svbart@nginx.com     nxt_queue_remove(&c->link);
67727Svbart@nginx.com 
67820Sigor@sysoev.ru     c->write_state = &nxt_controller_conn_close_state;
67920Sigor@sysoev.ru 
68062Sigor@sysoev.ru     nxt_conn_close(task->thread->engine, c);
68120Sigor@sysoev.ru }
68220Sigor@sysoev.ru 
68320Sigor@sysoev.ru 
68420Sigor@sysoev.ru static void
68520Sigor@sysoev.ru nxt_controller_conn_free(nxt_task_t *task, void *obj, void *data)
68620Sigor@sysoev.ru {
68762Sigor@sysoev.ru     nxt_conn_t  *c;
68820Sigor@sysoev.ru 
68920Sigor@sysoev.ru     c = obj;
69020Sigor@sysoev.ru 
69120Sigor@sysoev.ru     nxt_debug(task, "controller conn free");
69220Sigor@sysoev.ru 
69365Sigor@sysoev.ru     nxt_mp_destroy(c->mem_pool);
69420Sigor@sysoev.ru 
69520Sigor@sysoev.ru     //nxt_free(c);
69620Sigor@sysoev.ru }
69727Svbart@nginx.com 
69827Svbart@nginx.com 
69927Svbart@nginx.com static nxt_int_t
70060Svbart@nginx.com nxt_controller_request_content_length(void *ctx, nxt_http_field_t *field,
70167Svbart@nginx.com     nxt_log_t *log)
70227Svbart@nginx.com {
70327Svbart@nginx.com     off_t                     length;
70427Svbart@nginx.com     nxt_controller_request_t  *r;
70527Svbart@nginx.com 
70627Svbart@nginx.com     r = ctx;
70727Svbart@nginx.com 
70860Svbart@nginx.com     length = nxt_off_t_parse(field->value.start, field->value.length);
70927Svbart@nginx.com 
71027Svbart@nginx.com     if (nxt_fast_path(length > 0)) {
711107Svbart@nginx.com 
712107Svbart@nginx.com         if (nxt_slow_path(length > NXT_SIZE_T_MAX)) {
713107Svbart@nginx.com             nxt_log_error(NXT_LOG_ERR, log, "Content-Length is too big");
714107Svbart@nginx.com             return NXT_ERROR;
715107Svbart@nginx.com         }
71627Svbart@nginx.com 
71727Svbart@nginx.com         r->length = length;
71827Svbart@nginx.com         return NXT_OK;
71927Svbart@nginx.com     }
72027Svbart@nginx.com 
72160Svbart@nginx.com     nxt_log_error(NXT_LOG_ERR, log, "Content-Length is invalid");
72227Svbart@nginx.com 
72327Svbart@nginx.com     return NXT_ERROR;
72427Svbart@nginx.com }
72527Svbart@nginx.com 
72627Svbart@nginx.com 
72727Svbart@nginx.com static void
728140Svbart@nginx.com nxt_controller_process_request(nxt_task_t *task, nxt_controller_request_t *req)
72927Svbart@nginx.com {
73065Sigor@sysoev.ru     nxt_mp_t                   *mp;
73151Svbart@nginx.com     nxt_int_t                  rc;
73246Svbart@nginx.com     nxt_str_t                  path;
733140Svbart@nginx.com     nxt_conn_t                 *c;
73451Svbart@nginx.com     nxt_buf_mem_t              *mbuf;
735106Svbart@nginx.com     nxt_conf_op_t              *ops;
736106Svbart@nginx.com     nxt_conf_value_t           *value;
737208Svbart@nginx.com     nxt_conf_json_error_t      error;
73844Svbart@nginx.com     nxt_controller_response_t  resp;
73944Svbart@nginx.com 
74051Svbart@nginx.com     static const nxt_str_t empty_obj = nxt_string("{}");
74151Svbart@nginx.com 
742140Svbart@nginx.com     c = req->conn;
743112Smax.romanov@nginx.com     path = req->parser.path;
74451Svbart@nginx.com 
74551Svbart@nginx.com     if (path.length > 1 && path.start[path.length - 1] == '/') {
74651Svbart@nginx.com         path.length--;
74751Svbart@nginx.com     }
74851Svbart@nginx.com 
74944Svbart@nginx.com     nxt_memzero(&resp, sizeof(nxt_controller_response_t));
75044Svbart@nginx.com 
75144Svbart@nginx.com     if (nxt_str_eq(&req->parser.method, "GET", 3)) {
75246Svbart@nginx.com 
753106Svbart@nginx.com         value = nxt_conf_get_path(nxt_controller_conf.root, &path);
75451Svbart@nginx.com 
75551Svbart@nginx.com         if (value == NULL) {
756208Svbart@nginx.com             goto not_found;
75751Svbart@nginx.com         }
75851Svbart@nginx.com 
759208Svbart@nginx.com         resp.status = 200;
760106Svbart@nginx.com         resp.conf = value;
76146Svbart@nginx.com 
762208Svbart@nginx.com         nxt_controller_response(task, req, &resp);
763208Svbart@nginx.com         return;
76451Svbart@nginx.com     }
76551Svbart@nginx.com 
76651Svbart@nginx.com     if (nxt_str_eq(&req->parser.method, "PUT", 3)) {
76746Svbart@nginx.com 
768238Svbart@nginx.com         if (!nxt_queue_is_empty(&nxt_controller_waiting_requests)) {
769238Svbart@nginx.com             nxt_queue_insert_tail(&nxt_controller_waiting_requests, &req->link);
770238Svbart@nginx.com             return;
771238Svbart@nginx.com         }
772238Svbart@nginx.com 
77365Sigor@sysoev.ru         mp = nxt_mp_create(1024, 128, 256, 32);
77451Svbart@nginx.com 
77551Svbart@nginx.com         if (nxt_slow_path(mp == NULL)) {
776208Svbart@nginx.com             goto alloc_fail;
77746Svbart@nginx.com         }
77846Svbart@nginx.com 
77951Svbart@nginx.com         mbuf = &c->read->mem;
78051Svbart@nginx.com 
781208Svbart@nginx.com         nxt_memzero(&error, sizeof(nxt_conf_json_error_t));
782208Svbart@nginx.com 
783208Svbart@nginx.com         value = nxt_conf_json_parse(mp, mbuf->pos, mbuf->free, &error);
78451Svbart@nginx.com 
78551Svbart@nginx.com         if (value == NULL) {
78665Sigor@sysoev.ru             nxt_mp_destroy(mp);
787208Svbart@nginx.com 
788208Svbart@nginx.com             if (error.pos == NULL) {
789208Svbart@nginx.com                 goto alloc_fail;
790208Svbart@nginx.com             }
791208Svbart@nginx.com 
792208Svbart@nginx.com             resp.status = 400;
793208Svbart@nginx.com             resp.title = (u_char *) "Invalid JSON.";
794208Svbart@nginx.com             resp.detail = error.detail;
795208Svbart@nginx.com             resp.offset = error.pos - mbuf->pos;
796208Svbart@nginx.com 
797208Svbart@nginx.com             nxt_conf_json_position(mbuf->pos, error.pos,
798208Svbart@nginx.com                                    &resp.line, &resp.column);
799208Svbart@nginx.com 
800208Svbart@nginx.com             nxt_controller_response(task, req, &resp);
801208Svbart@nginx.com             return;
80251Svbart@nginx.com         }
80351Svbart@nginx.com 
80451Svbart@nginx.com         if (path.length != 1) {
805106Svbart@nginx.com             rc = nxt_conf_op_compile(c->mem_pool, &ops,
806106Svbart@nginx.com                                      nxt_controller_conf.root,
807106Svbart@nginx.com                                      &path, value);
80846Svbart@nginx.com 
80951Svbart@nginx.com             if (rc != NXT_OK) {
81051Svbart@nginx.com                 if (rc == NXT_DECLINED) {
811208Svbart@nginx.com                     goto not_found;
81251Svbart@nginx.com                 }
81346Svbart@nginx.com 
814208Svbart@nginx.com                 goto alloc_fail;
81551Svbart@nginx.com             }
81651Svbart@nginx.com 
817106Svbart@nginx.com             value = nxt_conf_clone(mp, ops, nxt_controller_conf.root);
81851Svbart@nginx.com 
81951Svbart@nginx.com             if (nxt_slow_path(value == NULL)) {
82065Sigor@sysoev.ru                 nxt_mp_destroy(mp);
821208Svbart@nginx.com                 goto alloc_fail;
82251Svbart@nginx.com             }
82346Svbart@nginx.com         }
82444Svbart@nginx.com 
825116Svbart@nginx.com         if (nxt_slow_path(nxt_conf_validate(value) != NXT_OK)) {
826121Svbart@nginx.com             nxt_mp_destroy(mp);
827208Svbart@nginx.com             goto invalid_conf;
828116Svbart@nginx.com         }
829116Svbart@nginx.com 
830249Svbart@nginx.com         rc = nxt_controller_conf_send(task, value,
831249Svbart@nginx.com                                       nxt_controller_conf_handler, req);
832247Svbart@nginx.com 
833247Svbart@nginx.com         if (nxt_slow_path(rc != NXT_OK)) {
834121Svbart@nginx.com             nxt_mp_destroy(mp);
835247Svbart@nginx.com 
836247Svbart@nginx.com             if (rc == NXT_DECLINED) {
837247Svbart@nginx.com                 goto no_router;
838247Svbart@nginx.com             }
839247Svbart@nginx.com 
840247Svbart@nginx.com             /* rc == NXT_ERROR */
841208Svbart@nginx.com             goto alloc_fail;
842121Svbart@nginx.com         }
843121Svbart@nginx.com 
844249Svbart@nginx.com         req->conf.root = value;
845249Svbart@nginx.com         req->conf.pool = mp;
846249Svbart@nginx.com 
847249Svbart@nginx.com         nxt_queue_insert_head(&nxt_controller_waiting_requests, &req->link);
848249Svbart@nginx.com 
849140Svbart@nginx.com         return;
85051Svbart@nginx.com     }
85127Svbart@nginx.com 
85251Svbart@nginx.com     if (nxt_str_eq(&req->parser.method, "DELETE", 6)) {
85351Svbart@nginx.com 
854238Svbart@nginx.com         if (!nxt_queue_is_empty(&nxt_controller_waiting_requests)) {
855238Svbart@nginx.com             nxt_queue_insert_tail(&nxt_controller_waiting_requests, &req->link);
856238Svbart@nginx.com             return;
857238Svbart@nginx.com         }
858238Svbart@nginx.com 
85951Svbart@nginx.com         if (path.length == 1) {
86065Sigor@sysoev.ru             mp = nxt_mp_create(1024, 128, 256, 32);
86144Svbart@nginx.com 
86251Svbart@nginx.com             if (nxt_slow_path(mp == NULL)) {
863208Svbart@nginx.com                 goto alloc_fail;
86451Svbart@nginx.com             }
86551Svbart@nginx.com 
866106Svbart@nginx.com             value = nxt_conf_json_parse_str(mp, &empty_obj);
86727Svbart@nginx.com 
86844Svbart@nginx.com         } else {
869106Svbart@nginx.com             rc = nxt_conf_op_compile(c->mem_pool, &ops,
870106Svbart@nginx.com                                      nxt_controller_conf.root,
871106Svbart@nginx.com                                      &path, NULL);
87251Svbart@nginx.com 
87351Svbart@nginx.com             if (rc != NXT_OK) {
87451Svbart@nginx.com                 if (rc == NXT_DECLINED) {
875208Svbart@nginx.com                     goto not_found;
87651Svbart@nginx.com                 }
87751Svbart@nginx.com 
878208Svbart@nginx.com                 goto alloc_fail;
87951Svbart@nginx.com             }
88051Svbart@nginx.com 
88165Sigor@sysoev.ru             mp = nxt_mp_create(1024, 128, 256, 32);
88251Svbart@nginx.com 
88351Svbart@nginx.com             if (nxt_slow_path(mp == NULL)) {
884208Svbart@nginx.com                 goto alloc_fail;
88551Svbart@nginx.com             }
88651Svbart@nginx.com 
887106Svbart@nginx.com             value = nxt_conf_clone(mp, ops, nxt_controller_conf.root);
88851Svbart@nginx.com         }
88951Svbart@nginx.com 
89051Svbart@nginx.com         if (nxt_slow_path(value == NULL)) {
89165Sigor@sysoev.ru             nxt_mp_destroy(mp);
892208Svbart@nginx.com             goto alloc_fail;
89344Svbart@nginx.com         }
89444Svbart@nginx.com 
895116Svbart@nginx.com         if (nxt_slow_path(nxt_conf_validate(value) != NXT_OK)) {
896121Svbart@nginx.com             nxt_mp_destroy(mp);
897208Svbart@nginx.com             goto invalid_conf;
898116Svbart@nginx.com         }
899116Svbart@nginx.com 
900249Svbart@nginx.com         rc = nxt_controller_conf_send(task, value,
901249Svbart@nginx.com                                       nxt_controller_conf_handler, req);
902247Svbart@nginx.com 
903247Svbart@nginx.com         if (nxt_slow_path(rc != NXT_OK)) {
904121Svbart@nginx.com             nxt_mp_destroy(mp);
905247Svbart@nginx.com 
906247Svbart@nginx.com             if (rc == NXT_DECLINED) {
907247Svbart@nginx.com                 goto no_router;
908247Svbart@nginx.com             }
909247Svbart@nginx.com 
910247Svbart@nginx.com             /* rc == NXT_ERROR */
911208Svbart@nginx.com             goto alloc_fail;
912121Svbart@nginx.com         }
913121Svbart@nginx.com 
914249Svbart@nginx.com         req->conf.root = value;
915249Svbart@nginx.com         req->conf.pool = mp;
916249Svbart@nginx.com 
917249Svbart@nginx.com         nxt_queue_insert_head(&nxt_controller_waiting_requests, &req->link);
918249Svbart@nginx.com 
919140Svbart@nginx.com         return;
92051Svbart@nginx.com     }
92151Svbart@nginx.com 
922208Svbart@nginx.com     resp.status = 405;
923208Svbart@nginx.com     resp.title = (u_char *) "Invalid method.";
924208Svbart@nginx.com     resp.offset = -1;
92551Svbart@nginx.com 
926208Svbart@nginx.com     nxt_controller_response(task, req, &resp);
927208Svbart@nginx.com     return;
92851Svbart@nginx.com 
929208Svbart@nginx.com not_found:
930208Svbart@nginx.com 
931208Svbart@nginx.com     resp.status = 404;
932208Svbart@nginx.com     resp.title = (u_char *) "Value doesn't exist.";
933208Svbart@nginx.com     resp.offset = -1;
934208Svbart@nginx.com 
935208Svbart@nginx.com     nxt_controller_response(task, req, &resp);
936208Svbart@nginx.com     return;
937208Svbart@nginx.com 
938208Svbart@nginx.com invalid_conf:
939208Svbart@nginx.com 
940208Svbart@nginx.com     resp.status = 400;
941208Svbart@nginx.com     resp.title = (u_char *) "Invalid configuration.";
942208Svbart@nginx.com     resp.offset = -1;
943208Svbart@nginx.com 
944208Svbart@nginx.com     nxt_controller_response(task, req, &resp);
945208Svbart@nginx.com     return;
946247Svbart@nginx.com 
947247Svbart@nginx.com alloc_fail:
948247Svbart@nginx.com 
949247Svbart@nginx.com     resp.status = 500;
950247Svbart@nginx.com     resp.title = (u_char *) "Memory allocation failed.";
951247Svbart@nginx.com     resp.offset = -1;
952247Svbart@nginx.com 
953247Svbart@nginx.com     nxt_controller_response(task, req, &resp);
954247Svbart@nginx.com     return;
955247Svbart@nginx.com 
956247Svbart@nginx.com no_router:
957247Svbart@nginx.com 
958247Svbart@nginx.com     resp.status = 500;
959247Svbart@nginx.com     resp.title = (u_char *) "Router process isn't available.";
960247Svbart@nginx.com     resp.offset = -1;
961247Svbart@nginx.com 
962247Svbart@nginx.com     nxt_controller_response(task, req, &resp);
963247Svbart@nginx.com     return;
96427Svbart@nginx.com }
96527Svbart@nginx.com 
96627Svbart@nginx.com 
967193Smax.romanov@nginx.com static void
968193Smax.romanov@nginx.com nxt_controller_conf_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg,
969193Smax.romanov@nginx.com     void *data)
970140Svbart@nginx.com {
971238Svbart@nginx.com     nxt_queue_t                queue;
972140Svbart@nginx.com     nxt_controller_request_t   *req;
973140Svbart@nginx.com     nxt_controller_response_t  resp;
974140Svbart@nginx.com 
975238Svbart@nginx.com     req = data;
976238Svbart@nginx.com 
977201Svbart@nginx.com     nxt_debug(task, "controller conf ready: %*s",
978201Svbart@nginx.com               nxt_buf_mem_used_size(&msg->buf->mem), msg->buf->mem.pos);
979140Svbart@nginx.com 
980238Svbart@nginx.com     nxt_queue_remove(&req->link);
981140Svbart@nginx.com 
982238Svbart@nginx.com     nxt_memzero(&resp, sizeof(nxt_controller_response_t));
983140Svbart@nginx.com 
984193Smax.romanov@nginx.com     if (msg->port_msg.type == NXT_PORT_MSG_RPC_READY) {
985140Svbart@nginx.com         nxt_mp_destroy(nxt_controller_conf.pool);
986140Svbart@nginx.com 
987140Svbart@nginx.com         nxt_controller_conf = req->conf;
988140Svbart@nginx.com 
989*314Svbart@nginx.com         nxt_controller_conf_store(task, req->conf.root);
990*314Svbart@nginx.com 
991208Svbart@nginx.com         resp.status = 200;
992208Svbart@nginx.com         resp.title = (u_char *) "Reconfiguration done.";
993140Svbart@nginx.com 
994140Svbart@nginx.com     } else {
995140Svbart@nginx.com         nxt_mp_destroy(req->conf.pool);
996140Svbart@nginx.com 
997208Svbart@nginx.com         resp.status = 500;
998208Svbart@nginx.com         resp.title = (u_char *) "Failed to apply new configuration.";
999208Svbart@nginx.com         resp.offset = -1;
1000140Svbart@nginx.com     }
1001140Svbart@nginx.com 
1002140Svbart@nginx.com     nxt_controller_response(task, req, &resp);
1003140Svbart@nginx.com 
1004238Svbart@nginx.com     nxt_queue_init(&queue);
1005238Svbart@nginx.com     nxt_queue_add(&queue, &nxt_controller_waiting_requests);
1006140Svbart@nginx.com 
1007238Svbart@nginx.com     nxt_queue_init(&nxt_controller_waiting_requests);
1008121Svbart@nginx.com 
1009238Svbart@nginx.com     nxt_queue_each(req, &queue, nxt_controller_request_t, link) {
1010238Svbart@nginx.com         nxt_controller_process_request(task, req);
1011238Svbart@nginx.com     } nxt_queue_loop;
1012121Svbart@nginx.com }
1013121Svbart@nginx.com 
1014121Svbart@nginx.com 
1015140Svbart@nginx.com static void
1016*314Svbart@nginx.com nxt_controller_conf_store(nxt_task_t *task, nxt_conf_value_t *conf)
1017*314Svbart@nginx.com {
1018*314Svbart@nginx.com     size_t         size;
1019*314Svbart@nginx.com     nxt_buf_t      *b;
1020*314Svbart@nginx.com     nxt_port_t     *main_port;
1021*314Svbart@nginx.com     nxt_runtime_t  *rt;
1022*314Svbart@nginx.com 
1023*314Svbart@nginx.com     rt = task->thread->runtime;
1024*314Svbart@nginx.com 
1025*314Svbart@nginx.com     main_port = rt->port_by_type[NXT_PROCESS_MAIN];
1026*314Svbart@nginx.com 
1027*314Svbart@nginx.com     size = nxt_conf_json_length(conf, NULL);
1028*314Svbart@nginx.com 
1029*314Svbart@nginx.com     b = nxt_buf_mem_alloc(main_port->mem_pool, size, 0);
1030*314Svbart@nginx.com 
1031*314