1 /* Copyright (c) 2011-2013, 2015, 2017The 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_MsgTask"
31
32 #include <unistd.h>
33 #include <MsgTask.h>
34 #include <msg_q.h>
35 #include <loc_log.h>
36 #include <platform_lib_includes.h>
37
LocMsgDestroy(void * msg)38 static void LocMsgDestroy(void* msg) {
39 delete (LocMsg*)msg;
40 }
41
MsgTask(LocThread::tCreate tCreator,const char * threadName,bool joinable)42 MsgTask::MsgTask(LocThread::tCreate tCreator,
43 const char* threadName, bool joinable) :
44 mQ(msg_q_init2()), mThread(new LocThread()) {
45 if (!mThread->start(tCreator, threadName, this, joinable)) {
46 delete mThread;
47 mThread = NULL;
48 }
49 }
50
MsgTask(const char * threadName,bool joinable)51 MsgTask::MsgTask(const char* threadName, bool joinable) :
52 mQ(msg_q_init2()), mThread(new LocThread()) {
53 if (!mThread->start(threadName, this, joinable)) {
54 delete mThread;
55 mThread = NULL;
56 }
57 }
58
~MsgTask()59 MsgTask::~MsgTask() {
60 msg_q_flush((void*)mQ);
61 msg_q_destroy((void**)&mQ);
62 }
63
destroy()64 void MsgTask::destroy() {
65 LocThread* thread = mThread;
66 msg_q_unblock((void*)mQ);
67 if (thread) {
68 mThread = NULL;
69 delete thread;
70 } else {
71 delete this;
72 }
73 }
74
sendMsg(const LocMsg * msg) const75 void MsgTask::sendMsg(const LocMsg* msg) const {
76 msg_q_snd((void*)mQ, (void*)msg, LocMsgDestroy);
77 }
78
prerun()79 void MsgTask::prerun() {
80 // make sure we do not run in background scheduling group
81 platform_lib_abstraction_set_sched_policy(platform_lib_abstraction_gettid(), PLA_SP_FOREGROUND);
82 }
83
run()84 bool MsgTask::run() {
85 //LOC_LOGV("MsgTask::loop() listening ...\n");
86 LocMsg* msg;
87 msq_q_err_type result = msg_q_rcv((void*)mQ, (void **)&msg);
88 if (eMSG_Q_SUCCESS != result) {
89 LOC_LOGE("%s:%d] fail receiving msg: %s\n", __func__, __LINE__,
90 loc_get_msg_q_status(result));
91 return false;
92 }
93
94 msg->log();
95 // there is where each individual msg handling is invoked
96 msg->proc();
97
98 delete msg;
99
100 return true;
101 }
102