blob: 9615b5230aa95760cdb68911f6fbf75d23c7314f
| 1 | #define LOG_TAG "CMsgQueueThread" |
| 2 | |
| 3 | #include "CMsgQueue.h" |
| 4 | #include <CTvLog.h> |
| 5 | #include <utils/Timers.h> |
| 6 | |
| 7 | CMessage::CMessage() |
| 8 | { |
| 9 | mDelayMs = 0; |
| 10 | mWhenMs = 0; |
| 11 | } |
| 12 | |
| 13 | CMessage::~CMessage() |
| 14 | { |
| 15 | } |
| 16 | |
| 17 | CMsgQueueThread::CMsgQueueThread() |
| 18 | { |
| 19 | } |
| 20 | |
| 21 | CMsgQueueThread::~CMsgQueueThread() |
| 22 | { |
| 23 | //请求退出处理线程,并阻塞 |
| 24 | requestExitAndWait(); |
| 25 | } |
| 26 | |
| 27 | nsecs_t CMsgQueueThread::getNowMs() |
| 28 | { |
| 29 | return systemTime(SYSTEM_TIME_MONOTONIC) / 1000000; |
| 30 | } |
| 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 < (int)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 | |
| 46 | //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 |
| 47 | void CMsgQueueThread::removeMsg(CMessage &msg) |
| 48 | { |
| 49 | CMutex::Autolock _l(mLockQueue); |
| 50 | int beforeSize = (int)m_v_msg.size(); |
| 51 | for (int i = 0; i < (int)m_v_msg.size(); i++) { |
| 52 | const CMessage &_msg = m_v_msg.itemAt(i); |
| 53 | if (_msg.mType == msg.mType) { |
| 54 | m_v_msg.removeAt(i); |
| 55 | } |
| 56 | } |
| 57 | //some msg removeed |
| 58 | if (beforeSize > (int)m_v_msg.size()) |
| 59 | mGetMsgCondition.signal(); |
| 60 | } |
| 61 | |
| 62 | void CMsgQueueThread::clearMsg() |
| 63 | { |
| 64 | CMutex::Autolock _l(mLockQueue); |
| 65 | m_v_msg.clear(); |
| 66 | } |
| 67 | |
| 68 | int CMsgQueueThread::startMsgQueue() |
| 69 | { |
| 70 | CMutex::Autolock _l(mLockQueue); |
| 71 | this->run(); |
| 72 | return 0; |
| 73 | } |
| 74 | |
| 75 | bool CMsgQueueThread::threadLoop() |
| 76 | { |
| 77 | int sleeptime = 100;//ms |
| 78 | while (!exitPending()) { //requietexit() or requietexitWait() not call |
| 79 | mLockQueue.lock(); |
| 80 | while (m_v_msg.size() == 0) { //msg queue is empty |
| 81 | mGetMsgCondition.wait(mLockQueue);//first unlock,when return,lock again,so need,call unlock |
| 82 | } |
| 83 | mLockQueue.unlock(); |
| 84 | //get delay time |
| 85 | CMessage msg; |
| 86 | nsecs_t delayMs = 0, nowMS = 0; |
| 87 | do { //wait ,until , the lowest time msg's whentime is low nowtime, to go on |
| 88 | if (m_v_msg.size() <= 0) { |
| 89 | LOGD("msg size is 0, break"); |
| 90 | break; |
| 91 | } |
| 92 | mLockQueue.lock();//get msg ,first lock. |
| 93 | msg = m_v_msg[0];//get first |
| 94 | mLockQueue.unlock(); |
| 95 | |
| 96 | delayMs = msg.mWhenMs - getNowMs(); |
| 97 | LOGD("threadLoop now = %lld mswhen = %lld delayMs = %lld msg type = %d", getNowMs(), msg.mWhenMs, delayMs, msg.mType); |
| 98 | if (delayMs > 0) { |
| 99 | mLockQueue.lock();//get msg ,first lock. |
| 100 | int ret = mGetMsgCondition.waitRelative(mLockQueue, delayMs); |
| 101 | mLockQueue.unlock(); |
| 102 | LOGD("msg queue wait ret = %d", ret); |
| 103 | } else { |
| 104 | break; |
| 105 | } |
| 106 | } while (true); //msg[0], timeout |
| 107 | |
| 108 | if (m_v_msg.size() > 0) { |
| 109 | mLockQueue.lock();// |
| 110 | msg = m_v_msg[0]; |
| 111 | m_v_msg.removeAt(0); |
| 112 | mLockQueue.unlock();// |
| 113 | //handle it |
| 114 | handleMessage(msg); |
| 115 | } |
| 116 | |
| 117 | //usleep(sleeptime * 1000); |
| 118 | } |
| 119 | //exit |
| 120 | //return true, run again, return false,not run. |
| 121 | return false; |
| 122 | } |
| 123 |