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/* Copyright (c) 2011-2013, 2015, 2017, 2020 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_NDEBUG 0
#define LOG_TAG "LocSvc_MsgTask"
#include <unistd.h>
#include <MsgTask.h>
#include <msg_q.h>
#include <log_util.h>
#include <loc_log.h>
#include <loc_pla.h>
namespace loc_util {
class MTRunnable : public LocRunnable {
const void* mQ;
public:
inline MTRunnable(const void* q) : mQ(q) {}
virtual ~MTRunnable();
// Overrides of LocRunnable methods
// This method will be repeated called until it returns false; or
// until thread is stopped.
virtual bool run() override;
// The method to be run before thread loop (conditionally repeatedly)
// calls run()
virtual void prerun() override;
// to interrupt the run() method and come out of that
virtual void interrupt() override;
};
static void LocMsgDestroy(void* msg) {
delete (LocMsg*)msg;
}
MsgTask::MsgTask(const char* threadName) :
mQ(msg_q_init2()), mThread() {
mThread.start(threadName, std::make_shared<MTRunnable>(mQ));
}
void MsgTask::sendMsg(const LocMsg* msg) const {
if (msg && this) {
msg_q_snd((void*)mQ, (void*)msg, LocMsgDestroy);
} else {
LOC_LOGE("%s: msg is %p and this is %p",
__func__, msg, this);
}
}
void MsgTask::sendMsg(const std::function<void()> runnable) const {
struct RunMsg : public LocMsg {
const std::function<void()> mRunnable;
public:
inline RunMsg(const std::function<void()> runnable) : mRunnable(runnable) {}
~RunMsg() = default;
inline virtual void proc() const override { mRunnable(); }
};
sendMsg(new RunMsg(runnable));
}
void MTRunnable::interrupt() {
msg_q_unblock((void*)mQ);
}
void MTRunnable::prerun() {
// make sure we do not run in background scheduling group
set_sched_policy(gettid(), SP_FOREGROUND);
}
bool MTRunnable::run() {
LocMsg* msg;
msq_q_err_type result = msg_q_rcv((void*)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));
return false;
}
msg->log();
// there is where each individual msg handling is invoked
msg->proc();
delete msg;
return true;
}
MTRunnable::~MTRunnable() {
msg_q_flush((void*)mQ);
msg_q_destroy((void**)&mQ);
}
} // namespace loc_util
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