blob: 81c9aecff41a36bf812c14432016892c0727a8e9
| 1 | #include "CMsgQueue.h" |
| 2 | #include <CTvLog.h> |
| 3 | #include <utils/Timers.h> |
| 4 | |
| 5 | #define LOG_TAG "CMsgQueueThread" |
| 6 | |
| 7 | CMessage::CMessage() |
| 8 | { |
| 9 | mDelayMs = 0; |
| 10 | mWhenMs = 0; |
| 11 | } |
| 12 | |
| 13 | CMessage::~CMessage() |
| 14 | { |
| 15 | |
| 16 | } |
| 17 | |
| 18 | CMsgQueueThread::CMsgQueueThread() |
| 19 | { |
| 20 | } |
| 21 | |
| 22 | CMsgQueueThread::~CMsgQueueThread() |
| 23 | { |
| 24 | //请求退出处理线程,并阻塞 |
| 25 | requestExitAndWait(); |
| 26 | } |
| 27 | |
| 28 | nsecs_t CMsgQueueThread::getNowMs() |
| 29 | { |
| 30 | return systemTime(SYSTEM_TIME_MONOTONIC) / 1000000; |
| 31 | } |
| 32 | void CMsgQueueThread::sendMsg(CMessage &msg) |
| 33 | { |
| 34 | CMutex::Autolock _l(mLockQueue); |
| 35 | msg.mWhenMs = getNowMs() + msg.mDelayMs;// |
| 36 | int i = 0; |
| 37 | while (i < m_v_msg.size() && m_v_msg[i].mWhenMs <= msg.mWhenMs) i++; //find the index that will insert(i) |
| 38 | m_v_msg.insertAt(msg, i);//insert at index i |
| 39 | CMessage msg1 = m_v_msg[0]; |
| 40 | LOGD("sendmsg now = %lld msg[0] when = %lld", getNowMs(), msg1.mWhenMs); |
| 41 | // |
| 42 | //if(i == 0)// is empty or new whenMS is at index 0, low all ms in list. so ,need to wakeup loop, to get new delay time. |
| 43 | mGetMsgCondition.signal(); |
| 44 | } |
| 45 | //有个缺陷，只能根据消息类型移除，同类型消息会全部移除,但足够用了 |
| 46 | void CMsgQueueThread::removeMsg(CMessage &msg) |
| 47 | { |
| 48 | CMutex::Autolock _l(mLockQueue); |
| 49 | int beforeSize = m_v_msg.size(); |
| 50 | for (int i = 0; i < m_v_msg.size(); i++) { |
| 51 | const CMessage &_msg = m_v_msg.itemAt(i); |
| 52 | if (_msg.mType == msg.mType) { |
| 53 | m_v_msg.removeAt(i); |
| 54 | } |
| 55 | } |
| 56 | //some msg removeed |
| 57 | if (beforeSize > m_v_msg.size()) |
| 58 | mGetMsgCondition.signal(); |
| 59 | } |
| 60 | |
| 61 | void CMsgQueueThread::clearMsg() |
| 62 | { |
| 63 | CMutex::Autolock _l(mLockQueue); |
| 64 | m_v_msg.clear(); |
| 65 | } |
| 66 | |
| 67 | int CMsgQueueThread::startMsgQueue() |
| 68 | { |
| 69 | CMutex::Autolock _l(mLockQueue); |
| 70 | this->run(); |
| 71 | return 0; |
| 72 | } |
| 73 | |
| 74 | bool CMsgQueueThread::threadLoop() |
| 75 | { |
| 76 | int sleeptime = 100;//ms |
| 77 | while (!exitPending()) { //requietexit() or requietexitWait() not call |
| 78 | mLockQueue.lock(); |
| 79 | while (m_v_msg.size() == 0) { //msg queue is empty |
| 80 | mGetMsgCondition.wait(mLockQueue);//first unlock,when return,lock again,so need,call unlock |
| 81 | } |
| 82 | mLockQueue.unlock(); |
| 83 | //get delay time |
| 84 | CMessage msg; |
| 85 | nsecs_t delayMs = 0, nowMS = 0; |
| 86 | do { //wait ,until , the lowest time msg's whentime is low nowtime, to go on |
| 87 | if (m_v_msg.size() <= 0) { |
| 88 | LOGD("msg size is 0, break"); |
| 89 | break; |
| 90 | } |
| 91 | mLockQueue.lock();//get msg ,first lock. |
| 92 | msg = m_v_msg[0];//get first |
| 93 | mLockQueue.unlock(); |
| 94 | |
| 95 | delayMs = msg.mWhenMs - getNowMs(); |
| 96 | LOGD("threadLoop now = %lld mswhen = %lld delayMs = %lld msg type = %d", getNowMs(), msg.mWhenMs, delayMs, msg.mType); |
| 97 | if (delayMs > 0) { |
| 98 | mLockQueue.lock();//get msg ,first lock. |
| 99 | int ret = mGetMsgCondition.waitRelative(mLockQueue, delayMs); |
| 100 | mLockQueue.unlock(); |
| 101 | LOGD("msg queue wait ret = %d", ret); |
| 102 | } else { |
| 103 | break; |
| 104 | } |
| 105 | } while (true); //msg[0], timeout |
| 106 | |
| 107 | if (m_v_msg.size() > 0) { |
| 108 | mLockQueue.lock();// |
| 109 | msg = m_v_msg[0]; |
| 110 | m_v_msg.removeAt(0); |
| 111 | mLockQueue.unlock();// |
| 112 | //handle it |
| 113 | handleMessage(msg); |
| 114 | } |
| 115 | |
| 116 | //usleep(sleeptime * 1000); |
| 117 | } |
| 118 | //exit |
| 119 | //return true, run again, return false,not run. |
| 120 | return false; |
| 121 | } |
| 122 |