Annotation of embedaddon/strongswan/src/libstrongswan/threading/thread_value.c, revision 1.1.1.1
1.1 misho 1: /*
2: * Copyright (C) 2009-2012 Tobias Brunner
3: * HSR Hochschule fuer Technik Rapperswil
4: *
5: * This program is free software; you can redistribute it and/or modify it
6: * under the terms of the GNU General Public License as published by the
7: * Free Software Foundation; either version 2 of the License, or (at your
8: * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
9: *
10: * This program is distributed in the hope that it will be useful, but
11: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13: * for more details.
14: */
15:
16: #define _GNU_SOURCE
17: #include <pthread.h>
18:
19: #include <library.h>
20:
21: #include "thread_value.h"
22:
23: typedef struct private_thread_value_t private_thread_value_t;
24:
25: struct private_thread_value_t {
26: /**
27: * Public interface.
28: */
29: thread_value_t public;
30:
31: /**
32: * Key to access thread-specific values.
33: */
34: pthread_key_t key;
35:
36: /**
37: * Destructor to cleanup the value of the thread destroying this object
38: */
39: thread_cleanup_t destructor;
40:
41: };
42:
43: METHOD(thread_value_t, set, void,
44: private_thread_value_t *this, void *val)
45: {
46: pthread_setspecific(this->key, val);
47: }
48:
49: METHOD(thread_value_t, get, void*,
50: private_thread_value_t *this)
51: {
52: return pthread_getspecific(this->key);
53: }
54:
55: METHOD(thread_value_t, destroy, void,
56: private_thread_value_t *this)
57: {
58: void *val;
59:
60: /* the destructor is not called automatically for the thread calling
61: * pthread_key_delete() */
62: if (this->destructor)
63: {
64: val = pthread_getspecific(this->key);
65: if (val)
66: {
67: this->destructor(val);
68: }
69: }
70: pthread_key_delete(this->key);
71: free(this);
72: }
73:
74: /**
75: * Described in header.
76: */
77: thread_value_t *thread_value_create(thread_cleanup_t destructor)
78: {
79: private_thread_value_t *this;
80:
81: INIT(this,
82: .public = {
83: .set = _set,
84: .get = _get,
85: .destroy = _destroy,
86: },
87: .destructor = destructor,
88: );
89:
90: pthread_key_create(&this->key, destructor);
91: return &this->public;
92: }
93:
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