android_device_xiaomi_sdm66.../core/MsgTask.cpp
Dante Russo 996a633c02 Assure associate callback is called in msgTask
If MsgTask thread is created before context that
has associator is initialized, the associator
callback was not getting called.

CRs-fixed: 650061

Change-Id: I45d81e1b49fc8dcbc93d1ceef4fef38468ecb4f8
2014-04-16 10:36:03 -07:00

148 lines
4.6 KiB
C++

/* Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation, nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#define LOG_NDDEBUG 0
#define LOG_TAG "LocSvc_MsgTask"
#include <cutils/sched_policy.h>
#include <unistd.h>
#include <MsgTask.h>
#include <msg_q.h>
#include <log_util.h>
#include <loc_log.h>
#include <android_runtime/AndroidRuntime.h>
namespace loc_core {
#define MAX_TASK_COMM_LEN 15
static void LocMsgDestroy(void* msg) {
delete (LocMsg*)msg;
}
MsgTask::MsgTask(tCreate tCreator, const char* threadName) :
mQ(msg_q_init2()), mAssociator(NULL){
if (tCreator) {
tCreator(threadName, loopMain,
(void*)new MsgTask(mQ, mAssociator));
} else {
createPThread(threadName);
}
}
MsgTask::MsgTask(tAssociate tAssociator, const char* threadName) :
mQ(msg_q_init2()), mAssociator(tAssociator){
createPThread(threadName);
}
inline
MsgTask::MsgTask(const void* q, tAssociate associator) :
mQ(q), mAssociator(associator){
}
MsgTask::~MsgTask() {
msg_q_unblock((void*)mQ);
}
void MsgTask::associate(tAssociate tAssociator) const {
struct LocAssociateMsg : public LocMsg {
tAssociate mAssociator;
inline LocAssociateMsg(tAssociate associator) :
LocMsg(), mAssociator(associator) {}
inline virtual void proc() const {
if (mAssociator) {
LOC_LOGD("MsgTask::associate");
mAssociator();
}
}
};
sendMsg(new LocAssociateMsg(tAssociator));
}
void MsgTask::createPThread(const char* threadName) {
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
pthread_t tid;
// create the thread here, then if successful
// and a name is given, we set the thread name
if (!pthread_create(&tid, &attr, loopMain,
(void*)new MsgTask(mQ, mAssociator)) &&
NULL != threadName) {
char lname[MAX_TASK_COMM_LEN+1];
memcpy(lname, threadName, MAX_TASK_COMM_LEN);
lname[MAX_TASK_COMM_LEN] = 0;
pthread_setname_np(tid, lname);
}
}
void MsgTask::sendMsg(const LocMsg* msg) const {
msg_q_snd((void*)mQ, (void*)msg, LocMsgDestroy);
}
void* MsgTask::loopMain(void* arg) {
MsgTask* copy = (MsgTask*)arg;
// make sure we do not run in background scheduling group
set_sched_policy(gettid(), SP_FOREGROUND);
if (NULL != copy->mAssociator) {
copy->mAssociator();
}
LocMsg* msg;
int cnt = 0;
while (1) {
LOC_LOGD("MsgTask::loop() %d listening ...\n", cnt++);
msq_q_err_type result = msg_q_rcv((void*)copy->mQ, (void **)&msg);
if (eMSG_Q_SUCCESS != result) {
LOC_LOGE("%s:%d] fail receiving msg: %s\n", __func__, __LINE__,
loc_get_msg_q_status(result));
// destroy the Q and exit
msg_q_destroy((void**)&(copy->mQ));
delete copy;
return NULL;
}
msg->log();
// there is where each individual msg handling is invoked
msg->proc();
delete msg;
}
delete copy;
return NULL;
}
}