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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/* Copyright (c) 2015-2017, The Linux Foundation. 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 Linux Foundation, 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 "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* 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.
*
*/
#ifndef __SYSTEM_STATUS_OSOBSERVER__
#define __SYSTEM_STATUS_OSOBSERVER__
#include <cinttypes>
#include <string>
#include <list>
#include <map>
#include <new>
#include <vector>
#include <MsgTask.h>
#include <DataItemId.h>
#include <IOsObserver.h>
#include <loc_pla.h>
#include <log_util.h>
#include <LocUnorderedSetMap.h>
namespace loc_core
{
/******************************************************************************
SystemStatusOsObserver
******************************************************************************/
using namespace std;
using namespace loc_util;
// Forward Declarations
class IDataItemCore;
class SystemStatus;
class SystemStatusOsObserver;
typedef map<IDataItemObserver*, list<DataItemId>> ObserverReqCache;
typedef LocUnorderedSetMap<IDataItemObserver*, DataItemId> ClientToDataItems;
typedef LocUnorderedSetMap<DataItemId, IDataItemObserver*> DataItemToClients;
typedef unordered_map<DataItemId, IDataItemCore*> DataItemIdToCore;
typedef unordered_map<DataItemId, int> DataItemIdToInt;
struct ObserverContext {
IDataItemSubscription* mSubscriptionObj;
IFrameworkActionReq* mFrameworkActionReqObj;
const MsgTask* mMsgTask;
SystemStatusOsObserver* mSSObserver;
inline ObserverContext(const MsgTask* msgTask, SystemStatusOsObserver* observer) :
mSubscriptionObj(NULL), mFrameworkActionReqObj(NULL),
mMsgTask(msgTask), mSSObserver(observer) {}
};
// Clients wanting to get data from OS/Framework would need to
// subscribe with OSObserver using IDataItemSubscription interface.
// Such clients would need to implement IDataItemObserver interface
// to receive data when it becomes available.
class SystemStatusOsObserver : public IOsObserver {
public:
// ctor
inline SystemStatusOsObserver(SystemStatus* systemstatus, const MsgTask* msgTask) :
mSystemStatus(systemstatus), mContext(msgTask, this),
mAddress("SystemStatusOsObserver"),
mClientToDataItems(MAX_DATA_ITEM_ID), mDataItemToClients(MAX_DATA_ITEM_ID)
#ifdef USE_GLIB
, mBackHaulConnectReqCount(0)
#endif
{
}
// dtor
~SystemStatusOsObserver();
template <typename CINT, typename COUT>
static COUT containerTransfer(CINT& s);
template <typename CINT, typename COUT>
inline static COUT containerTransfer(CINT&& s) {
return containerTransfer<CINT, COUT>(s);
}
// To set the subscription object
virtual void setSubscriptionObj(IDataItemSubscription* subscriptionObj);
// To set the framework action request object
inline void setFrameworkActionReqObj(IFrameworkActionReq* frameworkActionReqObj) {
mContext.mFrameworkActionReqObj = frameworkActionReqObj;
#ifdef USE_GLIB
if (mBackHaulConnectReqCount > 0) {
connectBackhaul();
mBackHaulConnectReqCount = 0;
}
#endif
}
// IDataItemSubscription Overrides
inline virtual void subscribe(const list<DataItemId>& l, IDataItemObserver* client) override {
subscribe(l, client, false);
}
virtual void updateSubscription(const list<DataItemId>& l, IDataItemObserver* client) override;
inline virtual void requestData(const list<DataItemId>& l, IDataItemObserver* client) override {
subscribe(l, client, true);
}
virtual void unsubscribe(const list<DataItemId>& l, IDataItemObserver* client) override;
virtual void unsubscribeAll(IDataItemObserver* client) override;
// IDataItemObserver Overrides
virtual void notify(const list<IDataItemCore*>& dlist) override;
inline virtual void getName(string& name) override {
name = mAddress;
}
// IFrameworkActionReq Overrides
virtual void turnOn(DataItemId dit, int timeOut = 0) override;
virtual void turnOff(DataItemId dit) override;
#ifdef USE_GLIB
virtual bool connectBackhaul() override;
virtual bool disconnectBackhaul();
#endif
private:
SystemStatus* mSystemStatus;
ObserverContext mContext;
const string mAddress;
ClientToDataItems mClientToDataItems;
DataItemToClients mDataItemToClients;
DataItemIdToCore mDataItemCache;
DataItemIdToInt mActiveRequestCount;
// Cache the subscribe and requestData till subscription obj is obtained
void cacheObserverRequest(ObserverReqCache& reqCache,
const list<DataItemId>& l, IDataItemObserver* client);
#ifdef USE_GLIB
// Cache the framework action request for connect/disconnect
int mBackHaulConnectReqCount;
#endif
void subscribe(const list<DataItemId>& l, IDataItemObserver* client, bool toRequestData);
// Helpers
void sendCachedDataItems(const unordered_set<DataItemId>& s, IDataItemObserver* to);
bool updateCache(IDataItemCore* d);
inline void logMe(const unordered_set<DataItemId>& l) {
IF_LOC_LOGD {
for (auto id : l) {
LOC_LOGD("DataItem %d", id);
}
}
}
};
} // namespace loc_core
#endif //__SYSTEM_STATUS__
|
