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      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 
     39 namespace loc_core {
     40 
     41 // nothing exclude for foreground
     42 const LOC_API_ADAPTER_EVENT_MASK_T
     43 LocDualContext::mFgExclMask = 0;
     44 // excluded events for background clients
     45 const LOC_API_ADAPTER_EVENT_MASK_T
     46 LocDualContext::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 
     56 const MsgTask* LocDualContext::mMsgTask = NULL;
     57 ContextBase* LocDualContext::mFgContext = NULL;
     58 ContextBase* LocDualContext::mBgContext = NULL;
     59 ContextBase* LocDualContext::mInjectContext = NULL;
     60 // the name must be shorter than 15 chars
     61 const char* LocDualContext::mLocationHalName = "Loc_hal_worker";
     62 const char* LocDualContext::mLBSLibName = "liblbs_core.so";
     63 
     64 pthread_mutex_t LocDualContext::mGetLocContextMutex = PTHREAD_MUTEX_INITIALIZER;
     65 
     66 const MsgTask* LocDualContext::getMsgTask(MsgTask::tCreate tCreator,
     67                                           const char* name)
     68 {
     69     if (NULL == mMsgTask) {
     70         mMsgTask = new MsgTask(tCreator, name);
     71     }
     72     return mMsgTask;
     73 }
     74 
     75 const MsgTask* LocDualContext::getMsgTask(MsgTask::tAssociate tAssociate,
     76                                           const char* name)
     77 {
     78     if (NULL == mMsgTask) {
     79         mMsgTask = new MsgTask(tAssociate, name);
     80     } else if (tAssociate) {
     81         mMsgTask->associate(tAssociate);
     82     }
     83     return mMsgTask;
     84 }
     85 
     86 ContextBase* LocDualContext::getLocFgContext(MsgTask::tCreate tCreator,
     87                                              const char* name)
     88 {
     89     pthread_mutex_lock(&LocDualContext::mGetLocContextMutex);
     90     LOC_LOGD("%s:%d]: querying ContextBase with tCreator", __func__, __LINE__);
     91     if (NULL == mFgContext) {
     92         LOC_LOGD("%s:%d]: creating msgTask with tCreator", __func__, __LINE__);
     93         const MsgTask* msgTask = getMsgTask(tCreator, name);
     94         mFgContext = new LocDualContext(msgTask,
     95                                         mFgExclMask);
     96     }
     97     if(NULL == mInjectContext) {
     98         LOC_LOGD("%s:%d]: mInjectContext is FgContext", __func__, __LINE__);
     99         mInjectContext = mFgContext;
    100         injectFeatureConfig(mInjectContext);
    101     }
    102     pthread_mutex_unlock(&LocDualContext::mGetLocContextMutex);
    103     return mFgContext;
    104 }
    105 
    106 ContextBase* LocDualContext::getLocFgContext(MsgTask::tAssociate tAssociate,
    107                                              const char* name)
    108 {
    109     pthread_mutex_lock(&LocDualContext::mGetLocContextMutex);
    110     LOC_LOGD("%s:%d]: querying ContextBase with tAssociate", __func__, __LINE__);
    111     if (NULL == mFgContext) {
    112         LOC_LOGD("%s:%d]: creating msgTask with tAssociate", __func__, __LINE__);
    113         const MsgTask* msgTask = getMsgTask(tAssociate, name);
    114         mFgContext = new LocDualContext(msgTask,
    115                                         mFgExclMask);
    116     }
    117     if(NULL == mInjectContext) {
    118         LOC_LOGD("%s:%d]: mInjectContext is FgContext", __func__, __LINE__);
    119         mInjectContext = mFgContext;
    120         injectFeatureConfig(mInjectContext);
    121     }
    122     pthread_mutex_unlock(&LocDualContext::mGetLocContextMutex);
    123     return mFgContext;
    124 }
    125 
    126 ContextBase* LocDualContext::getLocBgContext(MsgTask::tCreate tCreator,
    127                                              const char* name)
    128 {
    129     pthread_mutex_lock(&LocDualContext::mGetLocContextMutex);
    130     LOC_LOGD("%s:%d]: querying ContextBase with tCreator", __func__, __LINE__);
    131     if (NULL == mBgContext) {
    132         LOC_LOGD("%s:%d]: creating msgTask with tCreator", __func__, __LINE__);
    133         const MsgTask* msgTask = getMsgTask(tCreator, name);
    134         mBgContext = new LocDualContext(msgTask,
    135                                         mBgExclMask);
    136     }
    137     if(NULL == mInjectContext) {
    138         LOC_LOGD("%s:%d]: mInjectContext is BgContext", __func__, __LINE__);
    139         mInjectContext = mBgContext;
    140         injectFeatureConfig(mInjectContext);
    141     }
    142     pthread_mutex_unlock(&LocDualContext::mGetLocContextMutex);
    143     return mBgContext;
    144 }
    145 
    146 ContextBase* LocDualContext::getLocBgContext(MsgTask::tAssociate tAssociate,
    147                                              const char* name)
    148 {
    149     pthread_mutex_lock(&LocDualContext::mGetLocContextMutex);
    150     LOC_LOGD("%s:%d]: querying ContextBase with tAssociate", __func__, __LINE__);
    151     if (NULL == mBgContext) {
    152         LOC_LOGD("%s:%d]: creating msgTask with tAssociate", __func__, __LINE__);
    153         const MsgTask* msgTask = getMsgTask(tAssociate, name);
    154         mBgContext = new LocDualContext(msgTask,
    155                                         mBgExclMask);
    156     }
    157     if(NULL == mInjectContext) {
    158         LOC_LOGD("%s:%d]: mInjectContext is BgContext", __func__, __LINE__);
    159         mInjectContext = mBgContext;
    160         injectFeatureConfig(mInjectContext);
    161     }
    162     pthread_mutex_unlock(&LocDualContext::mGetLocContextMutex);
    163     return mBgContext;
    164 }
    165 
    166 void LocDualContext :: injectFeatureConfig(ContextBase *curContext)
    167 {
    168     LOC_LOGD("%s:%d]: Enter", __func__, __LINE__);
    169     if(curContext == mInjectContext) {
    170         LOC_LOGD("%s:%d]: Calling LBSProxy (%p) to inject feature config",
    171                  __func__, __LINE__, ((LocDualContext *)mInjectContext)->mLBSProxy);
    172         ((LocDualContext *)mInjectContext)->mLBSProxy->injectFeatureConfig(curContext);
    173     }
    174     LOC_LOGD("%s:%d]: Exit", __func__, __LINE__);
    175 }
    176 
    177 LocDualContext::LocDualContext(const MsgTask* msgTask,
    178                                LOC_API_ADAPTER_EVENT_MASK_T exMask) :
    179     ContextBase(msgTask, exMask, mLBSLibName)
    180 {
    181 }
    182 
    183 }
    184