-
Notifications
You must be signed in to change notification settings - Fork 13
/
PRP_Lock_T.c
132 lines (117 loc) · 4.29 KB
/
PRP_Lock_T.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
/********************************************************************
*
* Copyright (c) 2007, Institute of Embedded Systems at
* Zurich University of Applied Sciences
* (http://ines.zhaw.ch)
*
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the
* following conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Zurich University of Applied Sciences
* nor the names of its contributors may be used to endorse or
* promote products derived from this software without specific
* prior written permission.
*
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*********************************************************************/
/********************************************************************
* _____ ______ _____ *
* |_ _| | ____|/ ____| *
* | | _ __ | |__ | (___ Institute of Embedded Systems *
* | | | '_ \| __| \___ \ Zurich University of Applied *
* _| |_| | | | |____ ____) | Sciences *
* |_____|_| |_|______|_____/ 8401 Winterthur, Switzerland *
* *
*********************************************************************
*
* Project : Parallel Redundancy Protocol
*
* Version : 1.0
* Author : Sven Meier
*
*********************************************************************
* Change History
*
* Date | Name | Modification
************|**********|*********************************************
* 17.12.07 | mesv | file created
*********************************************************************/
#include "PRP_Lock_T.h"
#include "PRP_LogItf_T.h"
/**
* @fn void PRP_Lock_T_down(PRP_Lock_T* const me)
* @brief Takes the lock, this is blocking if already locked
* @param me PRP_Lock_T this pointer
*/
void PRP_Lock_T_down(PRP_Lock_T* const me)
{
PRP_PRP_LOGOUT(3, "[%s] entering \n", __FUNCTION__);
if (me == NULL_PTR) {
return;
}
lock_down(me->lock_);
}
/**
* @fn void PRP_Lock_T_up(PRP_Lock_T* const me)
* @brief Releases the lock, this is non-blocking
* @param me PRP_Lock_T this pointer
*/
void PRP_Lock_T_up(PRP_Lock_T* const me)
{
PRP_PRP_LOGOUT(3, "[%s] entering \n", __FUNCTION__);
if (me == NULL_PTR) {
return;
}
lock_up(me->lock_);
}
/**
* @fn void PRP_Lock_T_init(PRP_Lock_T* const me)
* @brief Initialize the PRP_Lock interface
* @param me PRP_Lock_T this pointer
*/
void PRP_Lock_T_init(PRP_Lock_T* const me)
{
PRP_PRP_LOGOUT(3, "[%s] entering \n", __FUNCTION__);
if (me == NULL_PTR) {
return;
}
me->lock_ = create_lock();
}
/**
* @fn void PRP_Lock_T_cleanup(PRP_Lock_T* const me)
* @brief Clean up the PRP_Lock interface
* @param me PRP_Lock_T this pointer
*/
void PRP_Lock_T_cleanup(PRP_Lock_T* const me)
{
if (me == NULL_PTR) {
return;
}
destroy_lock(me->lock_);
}