src/server/daemon/event.c

Thu, 05 May 2022 21:46:10 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Thu, 05 May 2022 21:46:10 +0200
branch
webdav
changeset 332
6f82ede01e1c
parent 256
19259b6c5cf7
child 415
d938228c382e
permissions
-rw-r--r--

simplify request input buffer

30
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
1 /*
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
3 *
44
3da1f7b6847f added some error messages
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 35
diff changeset
4 * Copyright 2013 Olaf Wintermann. All rights reserved.
30
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
5 *
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
6 * Redistribution and use in source and binary forms, with or without
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
7 * modification, are permitted provided that the following conditions are met:
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
8 *
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
9 * 1. Redistributions of source code must retain the above copyright
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
10 * notice, this list of conditions and the following disclaimer.
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
11 *
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
12 * 2. Redistributions in binary form must reproduce the above copyright
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
13 * notice, this list of conditions and the following disclaimer in the
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
14 * documentation and/or other materials provided with the distribution.
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
15 *
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
26 * POSSIBILITY OF SUCH DAMAGE.
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
27 */
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
28
254
4784c14aa639 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 159
diff changeset
29 #include <ucx/map.h>
159
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
30 #include "../util/atomic.h"
30
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
31
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
32 #include "event.h"
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
33
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
34 UcxMap *event_handler_map = NULL;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
35 int numevhandlers = 0;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
36
159
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
37 EVHandler *default_event_handler = NULL;
30
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
38
159
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
39 EVHandler *last_handler_c = NULL;
30
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
40
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
41 int create_event_handler(EventHandlerConfig *cfg) {
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
42 if(event_handler_map == NULL) {
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
43 event_handler_map = ucx_map_new(16);
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
44 }
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
45
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
46 /* if the event handler already exists, we don't modify it */
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
47 if(ucx_map_sstr_get(event_handler_map, cfg->name)) {
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
48 /* TODO: log message */
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
49 /* TODO: set reload status */
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
50 return 1;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
51 }
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
52
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
53 /* create new handler */
159
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
54 EVHandler *e = evhandler_create(cfg);
30
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
55 if(e == NULL) {
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
56 return 1;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
57 }
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
58
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
59 if(cfg->isdefault) {
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
60 if(default_event_handler) {
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
61 /* there can be only one default event handler */
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
62 /* TODO: log warning */
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
63 }
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
64 default_event_handler = e;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
65 }
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
66
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
67 int ret = ucx_map_sstr_put(event_handler_map, cfg->name, e);
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
68 if(ret == 0) {
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
69 last_handler_c = e;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
70 numevhandlers++;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
71 }
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
72
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
73 return ret;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
74 }
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
75
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
76 /*
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
77 * checks if there is at least one event handler and a default handler
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
78 * if necessary, check_event_handler_cfg() creates a default event handler
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
79 */
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
80 int check_event_handler_cfg() {
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
81 if(numevhandlers > 0 ) {
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
82 if(default_event_handler) {
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
83 return 0;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
84 } else {
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
85 default_event_handler = last_handler_c;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
86 return 0;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
87 }
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
88 }
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
89
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
90 EventHandlerConfig cfg;
256
19259b6c5cf7 replace old server config loader
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
91 cfg.name = SC("default");
30
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
92 cfg.nthreads = 1;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
93 cfg.isdefault = 1;
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
94
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
95 return create_event_handler(&cfg);
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
96 }
27c7511c0e34 new proppatch, mkcol and delete method
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
97
35
4417619a9bbd using non blocking IO for request input
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 30
diff changeset
98
159
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
99 EVHandler* get_default_event_handler() {
35
4417619a9bbd using non blocking IO for request input
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 30
diff changeset
100 return default_event_handler;
4417619a9bbd using non blocking IO for request input
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 30
diff changeset
101 }
4417619a9bbd using non blocking IO for request input
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 30
diff changeset
102
159
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
103 EVHandler* get_event_handler(char *name) {
35
4417619a9bbd using non blocking IO for request input
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 30
diff changeset
104 return ucx_map_cstr_get(event_handler_map, name);
4417619a9bbd using non blocking IO for request input
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 30
diff changeset
105 }
159
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
106
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
107 EventHandler* ev_instance(EVHandler *ev) {
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
108 int nev = ev->numins;
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
109 if(nev == 1) {
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
110 return ev->instances[0];
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
111 }
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
112
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
113 int ins = ev->current & nev;
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
114 ws_atomic_inc32(&ev->current);
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
115 return ev->instances[ins];
9ba9f8befa80 makes EventHandler public
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 92
diff changeset
116 }

mercurial