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Bundle.cpp
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Bundle.cpp
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#include "Bundle.h"
#include "MemoryStream.h"
#include "Messages.h"
#include "NetworkInterfaceBase.h"
#include "KBDebug.h"
#include "ObjectPool.h"
namespace KBEngine
{
static ObjectPool<Bundle> _g_bundlePool;
Bundle::Bundle():
pCurrPacket_(NULL),
streams_(),
numMessage_(0),
messageLength_(0),
pMsgtype_(NULL),
curMsgStreamIndex_(0)
{
pCurrPacket_ = MemoryStream::createObject();
}
Bundle::~Bundle()
{
if (pCurrPacket_)
{
delete pCurrPacket_;
pCurrPacket_ = NULL;
}
for (int i = 0; i < streams_.Num(); ++i)
{
delete streams_[i];
}
streams_.Empty();
}
Bundle* Bundle::createObject()
{
return _g_bundlePool.createObject();
}
void Bundle::reclaimObject(Bundle* obj)
{
obj->clear();
_g_bundlePool.reclaimObject(obj);
}
void Bundle::newMessage(Message* pMsg)
{
fini(false);
pMsgtype_ = pMsg;
numMessage_ += 1;
(*this) << pMsgtype_->id;
if (pMsgtype_->msglen == -1)
{
uint16 lengseat = 0;
(*this) << lengseat;
messageLength_ = 0;
}
curMsgStreamIndex_ = 0;
}
void Bundle::fini(bool issend)
{
if (numMessage_ > 0)
{
writeMsgLength();
streams_.Add(pCurrPacket_);
pCurrPacket_ = MemoryStream::createObject();
}
if (issend)
{
numMessage_ = 0;
pMsgtype_ = NULL;
}
curMsgStreamIndex_ = 0;
}
void Bundle::send(NetworkInterfaceBase* pNetworkInterface)
{
fini(true);
if (pNetworkInterface->valid())
{
for (int i = 0; i<streams_.Num(); ++i)
{
MemoryStream* stream = streams_[i];
pNetworkInterface->send(stream);
}
}
else
{
ERROR_MSG("Bundle::send(): networkInterface invalid!");
}
// 我们认为,发送完成,就视为这个bundle不再使用了,
// 所以我们会把它放回对象池,以减少垃圾回收带来的消耗,
// 如果需要继续使用,应该重新Bundle.createObject(),
// 如果外面不重新createObject()而直接使用,就可能会出现莫名的问题,
// 仅以此备注,警示使用者。
Bundle::reclaimObject(this);
}
void Bundle::writeMsgLength()
{
if (pMsgtype_->msglen != -1)
return;
MemoryStream* writePacket = pCurrPacket_;
if (curMsgStreamIndex_ > 0)
{
writePacket = streams_[streams_.Num() - curMsgStreamIndex_];
}
uint8* data = writePacket->data();
data[2] = (uint8)(messageLength_ & 0xff);
data[3] = (uint8)(messageLength_ >> 8 & 0xff);
}
void Bundle::checkStream(uint32 v)
{
if (v > pCurrPacket_->space())
{
streams_.Add(pCurrPacket_);
pCurrPacket_ = MemoryStream::createObject();
++curMsgStreamIndex_;
}
messageLength_ += v;
}
void Bundle::clear()
{
// 把不用的MemoryStream放回缓冲池,以减少垃圾回收的消耗
for (int i = 0; i < streams_.Num(); ++i)
{
if(pCurrPacket_ != streams_[i])
MemoryStream::reclaimObject(streams_[i]);
}
streams_.Empty();
if (pCurrPacket_)
pCurrPacket_->clear(false);
else
pCurrPacket_ = MemoryStream::createObject();
numMessage_ = 0;
messageLength_ = 0;
pMsgtype_ = NULL;
curMsgStreamIndex_ = 0;
}
Bundle &Bundle::operator<<(uint8 value)
{
checkStream(sizeof(uint8));
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(uint16 value)
{
checkStream(sizeof(uint16));
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(uint32 value)
{
checkStream(sizeof(uint32));
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(uint64 value)
{
checkStream(sizeof(uint64));
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(int8 value)
{
checkStream(sizeof(int8));
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(int16 value)
{
checkStream(sizeof(int16));
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(int32 value)
{
checkStream(sizeof(int32));
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(int64 value)
{
checkStream(sizeof(int64));
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(float value)
{
checkStream(sizeof(float));
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(double value)
{
checkStream(sizeof(double));
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(bool value)
{
checkStream(sizeof(int8));
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(const FString &value)
{
uint32 len = value.Len();
// +1为字符串尾部的0位置
checkStream(len + 1);
(*pCurrPacket_) << value;
return *this;
}
Bundle &Bundle::operator<<(const char *str)
{
// +1为字符串尾部的0位置
uint32 len = (uint32)strlen(str) + 1;
checkStream(len);
(*pCurrPacket_) << str;
return *this;
}
void Bundle::appendBlob(const TArray<uint8>& datas)
{
uint32 len = (uint32)datas.Num() + 4/*len size*/;
checkStream(len);
(*pCurrPacket_).appendBlob(datas);
}
void Bundle::appendUTF8String(const FString& str)
{
FTCHARToUTF8 EchoStrUtf8(*str);
uint32 len = (uint32)EchoStrUtf8.Length() + 4/*len size*/;
checkStream(len);
(*pCurrPacket_).appendUTF8String(str);
}
void Bundle::writeVector2(const FVector2D& v)
{
checkStream(8);
(*pCurrPacket_).writeVector2(v);
}
void Bundle::writeVector3(const FVector& v)
{
checkStream(12);
(*pCurrPacket_).writeVector3(v);
}
void Bundle::writeVector4(const FVector4& v)
{
checkStream(16);
(*pCurrPacket_).writeVector4(v);
}
}