forked from PX4/DriverFramework
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathWorkMgr.cpp
More file actions
128 lines (105 loc) · 3.61 KB
/
WorkMgr.cpp
File metadata and controls
128 lines (105 loc) · 3.61 KB
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
/**********************************************************************
* Copyright (c) 2015 Mark Charlebois
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted (subject to the limitations in the
* disclaimer below) 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 Dronecode Project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
* GRANTED BY THIS LICENSE. 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.
*************************************************************************/
#include <errno.h>
#include "DriverFramework.hpp"
#include "WorkItems.hpp"
using namespace DriverFramework;
bool WorkMgr::m_initialized = false;
//-----------------------------------------------------------------------
// Static Functions
//-----------------------------------------------------------------------
// TODO FIXME: this seems conflicting with WorkHandle::isValid()
bool WorkMgr::isValidHandle(const WorkHandle &h)
{
return ((h.m_handle >= 0) && WorkItems::isValidIndex(h.m_handle));
}
//-----------------------------------------------------------------------
// Class Methods
//-----------------------------------------------------------------------
int WorkMgr::initialize()
{
DF_LOG_DEBUG("WorkMgr::initialize");
if (m_initialized) {
DF_LOG_ERR("WorkMgr already initialized");
return -1;
}
m_initialized = true;
return 0;
}
void WorkMgr::finalize()
{
DF_LOG_DEBUG("WorkMgr::finalize");
if (!m_initialized) {
DF_LOG_ERR("WorkMgr not initialized, cannot finalize");
return;
}
WorkItems::finalize();
}
void WorkMgr::getWorkHandle(WorkCallback cb, void *arg, uint32_t delay_usec, WorkHandle &wh)
{
// Use -1 to flag that we don't know the index, otherwise we pass undefined.
int handle = -1;
int ret = WorkItems::getIndex(cb, arg, delay_usec, handle);
if (ret == 0) {
wh.m_errno = 0;
wh.m_handle = (int)handle;
} else {
wh.m_errno = ret;
wh.m_handle = -1;
}
}
void WorkMgr::releaseWorkHandle(WorkHandle &wh)
{
DF_LOG_DEBUG("WorkMgr::releaseWorkHandle");
if (wh.m_handle == -1) {
wh.m_errno = EBADF;
}
if (isValidHandle(wh)) {
WorkItems::unschedule(wh.m_handle);
wh.m_errno = 0;
} else {
wh.m_errno = EBADF;
}
wh.m_handle = -1;
}
void WorkMgr::setError(WorkHandle &h, int error)
{
h.m_errno = error;
}
WorkHandle::~WorkHandle()
{
WorkMgr::releaseWorkHandle(*this);
}