src/server/daemon/resourcepool.h

changeset 385
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parent 272
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child 415
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210:21274e5950af 385:a1f4cb076d2f
1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2021 Olaf Wintermann. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifndef WS_RESOURCEPOOL_H
30 #define WS_RESOURCEPOOL_H
31
32 #include "../public/nsapi.h"
33
34 #include "config.h"
35
36 #include <pthread.h>
37
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41
42 typedef struct ResourceDataPrivate ResourceDataPrivate;
43
44 struct ResourceDataPrivate {
45 ResourceData data;
46
47 /*
48 * the void* pointer returned by respool->type->createresource
49 *
50 * ResourceData.data contains the pointer returned by
51 * respool->type->getresourcedata(resdata))
52 */
53 void *resdata;
54 };
55
56 struct ResourcePool {
57 /*
58 * Memory pool
59 */
60 pool_handle_t *pool;
61
62 /*
63 * Type information of this resource pool
64 * The type object is stored in the registered types map and should not
65 * be freed, when the resource pool is destroyed
66 */
67 ResourceType *type;
68
69 /*
70 * Data returned by the ResourceType init function
71 * When the pool is destroyed, the data should be passed to
72 * ResourceType.destroy
73 */
74 void *data;
75
76 pthread_mutex_t lock;
77 pthread_cond_t available;
78
79 /*
80 * Array of available resources
81 * each entry is created with ResourceType.createresource
82 */
83 ResourceDataPrivate **resources;
84
85 /*
86 * Allocated size of the resources array
87 */
88 size_t resalloc;
89
90 /*
91 * Number of currently available resources in the array
92 */
93 size_t numresources;
94
95
96 /*
97 * Number of created resources (in use + available)
98 */
99 size_t numcreated;
100
101 /*
102 * resource pool min parameter
103 */
104 int min;
105
106 /*
107 * resource pool max parameter
108 */
109 int max;
110 };
111
112 int init_resource_pools(void);
113
114 int resourcepool_new(ServerConfiguration *cfg, scstr_t type, scstr_t name, ConfigNode *node);
115
116 void resourcepool_destroy_resource(ResourceDataPrivate *res);
117
118 void resourcepool_destroy(ResourcePool *respool);
119
120 #ifdef __cplusplus
121 }
122 #endif
123
124 #endif /* WS_RESOURCEPOOL_H */
125

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