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
41namespace loc_core {
42
43LBSProxyBase* 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
70LocApiBase* 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
116ContextBase::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