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_CtxBase"
31
32 #include <dlfcn.h>
33 #include <cutils/sched_policy.h>
34 #include <unistd.h>
35 #include <ContextBase.h>
36 #include <msg_q.h>
37 #include <loc_target.h>
38 #include <log_util.h>
39 #include <loc_log.h>
40
41 namespace loc_core {
42
getLBSProxy(const char * libName)43 LBSProxyBase* ContextBase::getLBSProxy(const char* libName)
44 {
45 LBSProxyBase* proxy = NULL;
46 LOC_LOGD("%s:%d]: getLBSProxy libname: %s\n", __func__, __LINE__, libName);
47 dlerror();
48 void* lib = dlopen(libName, RTLD_NOW);
49
50 if ((void*)NULL != lib) {
51 dlerror();
52 getLBSProxy_t* getter = (getLBSProxy_t*)dlsym(lib, "getLBSProxy");
53 if (NULL != getter) {
54 proxy = (*getter)();
55 }
56 else {
57 LOC_LOGD("%s:%d]: getter is NULL. Reason: %s", __func__, __LINE__, dlerror());
58 }
59 }
60 else {
61 LOC_LOGD("%s:%d]: lib is NULL. Reason: %s", __func__, __LINE__, dlerror());
62 }
63 if (NULL == proxy) {
64 proxy = new LBSProxyBase();
65 }
66 LOC_LOGD("%s:%d]: Exiting\n", __func__, __LINE__);
67 return proxy;
68 }
69
createLocApi(LOC_API_ADAPTER_EVENT_MASK_T exMask)70 LocApiBase* ContextBase::createLocApi(LOC_API_ADAPTER_EVENT_MASK_T exMask)
71 {
72 LocApiBase* locApi = NULL;
73
74 // first if can not be MPQ
75 if (TARGET_MPQ != loc_get_target()) {
76 if (NULL == (locApi = mLBSProxy->getLocApi(mMsgTask, exMask, this))) {
77 void *handle = NULL;
78 //try to see if LocApiV02 is present
79 if((handle = dlopen("libloc_api_v02.so", RTLD_NOW)) != NULL) {
80 LOC_LOGD("%s:%d]: libloc_api_v02.so is present", __func__, __LINE__);
81 dlerror();
82 getLocApi_t* getter = (getLocApi_t*)dlsym(handle, "getLocApi");
83 if(getter != NULL) {
84 LOC_LOGD("%s:%d]: getter is not NULL for LocApiV02", __func__, __LINE__);
85 locApi = (*getter)(mMsgTask,exMask, this);
86 }
87 else {
88 LOC_LOGD("%s:%d]: getter is NULL. Reason: %s", __func__, __LINE__, dlerror());
89 }
90 }
91 // only RPC is the option now
92 else {
93 LOC_LOGD("%s:%d]: libloc_api_v02.so is NOT present. Trying RPC",
94 __func__, __LINE__);
95 handle = dlopen("libloc_api-rpc-qc.so", RTLD_NOW);
96 if (NULL != handle) {
97 getLocApi_t* getter = (getLocApi_t*)dlsym(handle, "getLocApi");
98 if (NULL != getter) {
99 LOC_LOGD("%s:%d]: getter is NULL in RPC", __func__, __LINE__);
100 locApi = (*getter)(mMsgTask, exMask, this);
101 }
102 }
103 }
104 }
105 }
106
107 // locApi could still be NULL at this time
108 // we would then create a dummy one
109 if (NULL == locApi) {
110 locApi = new LocApiBase(mMsgTask, exMask, this);
111 }
112
113 return locApi;
114 }
115
ContextBase(const MsgTask * msgTask,LOC_API_ADAPTER_EVENT_MASK_T exMask,const char * libName)116 ContextBase::ContextBase(const MsgTask* msgTask,
117 LOC_API_ADAPTER_EVENT_MASK_T exMask,
118 const char* libName) :
119 mLBSProxy(getLBSProxy(libName)),
120 mMsgTask(msgTask),
121 mLocApi(createLocApi(exMask)),
122 mLocApiProxy(mLocApi->getLocApiProxy())
123 {
124 }
125
126 }
127