lvfulong
155 lines
3.6 KiB
C++
155 lines
3.6 KiB
C++
/**
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@file JCResource.cpp
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@brief
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@author James
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@version 1.0
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@date 2016_5_12
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*/
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#include "JCResource.h"
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#include "JCResManager.h"
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namespace laya{
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JCResStateDispatcher::JCResStateDispatcher()
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{
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m_nResState = getting;
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m_nErrNo = noError;
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}
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JCResource::JCResource()
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{
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m_pResManager = NULL;
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m_nUsedMem=0;
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m_nResSize =0;
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m_nTouch = 0;
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}
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JCResource::~JCResource()
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{
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if(m_pResManager && m_nUsedMem )
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{
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m_pResManager->freeRes(this,true);
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}
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m_pResManager = NULL;
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}
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/*
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注意：资源释放后再恢复，如果不做特殊处理，是不会再次出发onload的回调的。因为已经被删掉了。
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*/
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void JCResStateDispatcher::setState( JCResource::ResState p_state )
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{
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m_nResState = p_state;
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switch(p_state)
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{
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case getting:
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break;
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case ready:
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{
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swap(m_allOnReadyCB, m_tmpOnReadyCB);
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m_allOnReadyCB.clear();
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m_allOnErrCB.clear();
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int nNum = m_tmpOnReadyCB.size();
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for (int i = 0; i < nNum; i++){
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m_tmpOnReadyCB[i](this);
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}
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m_tmpOnReadyCB.clear();
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}
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break;
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case error:
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{
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swap(m_allOnErrCB, m_tmpOnErrCB);
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m_allOnErrCB.clear();
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m_allOnReadyCB.clear();
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int nNum = m_tmpOnErrCB.size();
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for( int i=0; i<nNum; i++){
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m_tmpOnErrCB[i](this,m_nErrNo);
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}
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m_tmpOnErrCB.clear();
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}
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break;
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//如果资源被释放了，则onload和onerror都会被清掉，在恢复的时候，不会再调到对应的函数了。
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//如果需要调用，就要在回调中再次添加监听
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case freed:
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{
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swap(m_allOnFreeCB, m_tmpOnFreeCB);
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m_allOnFreeCB.clear();
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int nNum = m_tmpOnFreeCB.size();
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for(int i=0; i<nNum; i++){
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m_tmpOnFreeCB[i](this);
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}
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m_tmpOnFreeCB.clear();
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}
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break;
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}
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}
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//资源准备好之后的回调。可以调用多次，添加多个回调
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void JCResStateDispatcher::setOnReadyCB( JCResource::ResOnReadyCB cb )
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{
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switch( m_nResState )
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{
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case ready:
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cb(this);
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break;
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case getting:
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m_allOnReadyCB.push_back(cb);
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break;
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case freed:
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case error://error的话要再次重试
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m_nResState = getting;
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m_allOnReadyCB.push_back(cb);
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restoreRes(); //完成后需要设置state? 现在如果需要恢复资源的话，调用者自己控制
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//还是这里做吧，要不总是容易忘了
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//文件资源 怎么办
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break;
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}
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}
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void JCResStateDispatcher::setOnFreeCB( JCResource::ResOnReadyCB cb )
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{
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switch( m_nResState ){
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case error:
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m_nResState = getting;
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case ready:
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case getting:
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m_allOnFreeCB.push_back(cb);
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break;
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case freed:
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cb(this);
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break;
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}
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}
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void JCResStateDispatcher::setOnErrorCB(ResOnErrCB cb)
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{
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switch( m_nResState ){
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case ready:
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case freed:
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break;
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case getting:
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m_allOnErrCB.push_back(cb);
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break;
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case error://问题，如果多次调用,例如想再重试一下，那直接调用并不是期望的
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m_nResState = getting;
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m_allOnErrCB.push_back(cb);
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restoreRes();
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//cb(this,mnErrNo );
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break;
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}
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}
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void JCResource::touch(bool p_bRestoreRes)
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{
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if(m_pResManager){
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m_pResManager->touchRes(this,p_bRestoreRes);
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}
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}
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void JCResource::setResSize(int sz)
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{
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if(sz==m_nResSize)return;
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m_nResSize = sz;
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if(m_pResManager){
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m_pResManager->updateRes(this);
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}
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}
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}
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//------------------------------------------------------------------------------
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//-----------------------------END FILE--------------------------------
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