1/* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
2 *
3 * Redistribution and use in source and binary forms, with or without
4 * modification, are permitted provided that the following conditions are
5 * met:
6 *     * Redistributions of source code must retain the above copyright
7 *       notice, this list of conditions and the following disclaimer.
8 *     * Redistributions in binary form must reproduce the above
9 *       copyright notice, this list of conditions and the following
10 *       disclaimer in the documentation and/or other materials provided
11 *       with the distribution.
12 *     * Neither the name of The Linux Foundation, nor the names of its
13 *       contributors may be used to endorse or promote products derived
14 *       from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
20 * BE 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
23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 */
29#define LOG_NDDEBUG 0
30#define LOG_TAG "LocSvc_DualCtx"
31
32#include <cutils/sched_policy.h>
33#include <unistd.h>
34#include <LocDualContext.h>
35#include <msg_q.h>
36#include <log_util.h>
37#include <loc_log.h>
38
39namespace loc_core {
40
41// nothing exclude for foreground
42const LOC_API_ADAPTER_EVENT_MASK_T
43LocDualContext::mFgExclMask = 0;
44// excluded events for background clients
45const LOC_API_ADAPTER_EVENT_MASK_T
46LocDualContext::mBgExclMask =
47    (LOC_API_ADAPTER_BIT_PARSED_POSITION_REPORT |
48     LOC_API_ADAPTER_BIT_SATELLITE_REPORT |
49     LOC_API_ADAPTER_BIT_NMEA_1HZ_REPORT |
50     LOC_API_ADAPTER_BIT_NMEA_POSITION_REPORT |
51     LOC_API_ADAPTER_BIT_IOCTL_REPORT |
52     LOC_API_ADAPTER_BIT_STATUS_REPORT |
53     LOC_API_ADAPTER_BIT_GEOFENCE_GEN_ALERT |
54     LOC_API_ADAPTER_BIT_GNSS_MEASUREMENT);
55
56const MsgTask* LocDualContext::mMsgTask = NULL;
57ContextBase* LocDualContext::mFgContext = NULL;
58ContextBase* LocDualContext::mBgContext = NULL;
59ContextBase* LocDualContext::mInjectContext = NULL;
60// the name must be shorter than 15 chars
61const char* LocDualContext::mLocationHalName = "Loc_hal_worker";
62const char* LocDualContext::mLBSLibName = "liblbs_core.so";
63
64pthread_mutex_t LocDualContext::mGetLocContextMutex = PTHREAD_MUTEX_INITIALIZER;
65
66const MsgTask* LocDualContext::getMsgTask(LocThread::tCreate tCreator,
67                                          const char* name, bool joinable)
68{
69    if (NULL == mMsgTask) {
70        mMsgTask = new MsgTask(tCreator, name, joinable);
71    }
72    return mMsgTask;
73}
74
75inline
76const MsgTask* LocDualContext::getMsgTask(const char* name, bool joinable) {
77    return getMsgTask((LocThread::tCreate)NULL, name, joinable);
78}
79
80ContextBase* LocDualContext::getLocFgContext(LocThread::tCreate tCreator,
81            LocMsg* firstMsg, const char* name, bool joinable)
82{
83    pthread_mutex_lock(&LocDualContext::mGetLocContextMutex);
84    LOC_LOGD("%s:%d]: querying ContextBase with tCreator", __func__, __LINE__);
85    if (NULL == mFgContext) {
86        LOC_LOGD("%s:%d]: creating msgTask with tCreator", __func__, __LINE__);
87        const MsgTask* msgTask = getMsgTask(tCreator, name, joinable);
88        mFgContext = new LocDualContext(msgTask,
89                                        mFgExclMask);
90    }
91    if(NULL == mInjectContext) {
92        LOC_LOGD("%s:%d]: mInjectContext is FgContext", __func__, __LINE__);
93        mInjectContext = mFgContext;
94        injectFeatureConfig(mInjectContext);
95    }
96    pthread_mutex_unlock(&LocDualContext::mGetLocContextMutex);
97
98    if (firstMsg) {
99        mFgContext->sendMsg(firstMsg);
100    }
101
102    return mFgContext;
103}
104
105ContextBase* LocDualContext::getLocBgContext(LocThread::tCreate tCreator,
106            LocMsg* firstMsg, const char* name, bool joinable)
107{
108    pthread_mutex_lock(&LocDualContext::mGetLocContextMutex);
109    LOC_LOGD("%s:%d]: querying ContextBase with tCreator", __func__, __LINE__);
110    if (NULL == mBgContext) {
111        LOC_LOGD("%s:%d]: creating msgTask with tCreator", __func__, __LINE__);
112        const MsgTask* msgTask = getMsgTask(tCreator, name, joinable);
113        mBgContext = new LocDualContext(msgTask,
114                                        mBgExclMask);
115    }
116    if(NULL == mInjectContext) {
117        LOC_LOGD("%s:%d]: mInjectContext is BgContext", __func__, __LINE__);
118        mInjectContext = mBgContext;
119        injectFeatureConfig(mInjectContext);
120    }
121    pthread_mutex_unlock(&LocDualContext::mGetLocContextMutex);
122
123    if (firstMsg) {
124        mBgContext->sendMsg(firstMsg);
125    }
126
127    return mBgContext;
128}
129
130void LocDualContext :: injectFeatureConfig(ContextBase *curContext)
131{
132    LOC_LOGD("%s:%d]: Enter", __func__, __LINE__);
133    if(curContext == mInjectContext) {
134        LOC_LOGD("%s:%d]: Calling LBSProxy (%p) to inject feature config",
135                 __func__, __LINE__, ((LocDualContext *)mInjectContext)->mLBSProxy);
136        ((LocDualContext *)mInjectContext)->mLBSProxy->injectFeatureConfig(curContext);
137    }
138    LOC_LOGD("%s:%d]: Exit", __func__, __LINE__);
139}
140
141LocDualContext::LocDualContext(const MsgTask* msgTask,
142                               LOC_API_ADAPTER_EVENT_MASK_T exMask) :
143    ContextBase(msgTask, exMask, mLBSLibName)
144{
145}
146
147}
148