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vs_tcpclient.cpp
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vs_tcpclient.cpp
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#include "stdafx.h"
#include <mutex>
#include <list>
#include <queue>
#include <atomic>
#include "vs_tcpclient.h"
#include "..\vs_libuv\uv.h"
#include "..\vslog\VsLogServiceApi.h"
using VsTcpClientTask = std::function<void()>;
constexpr VS_UINT32 VsTcpClient_Magic = 0x45567889;
constexpr VS_INT8* MODULE_NAME = "VsTcpClient";
constexpr VS_UINT32 VSTcpClientTimeroutValue = 10;//10ms
constexpr VS_UINT32 VSTcpClientSendOnceMaxSize = 100 * 1024;//单次发送最大的大小100K,如果应用单次放进的数据超过这个大小,则拆分放进队列
constexpr VS_UINT32 VSTcpClientRecvDataMaxSize = 1 *1024 *1024 ;//1M
using VsTcpSendQueue = std::queue<std::vector<VS_INT8>>;
struct VsTcpClientContext
{
VsTcpClientContext(bool isAllowLost,VS_UINT32 sendQueueSize = 20000):
m_spRecvData (new VS_INT8[VSTcpClientRecvDataMaxSize])
, m_spSendTempData(new VS_INT8[VSTcpClientSendOnceMaxSize])
{
magic = VsTcpClient_Magic;
m_bAllowLost = isAllowLost;
if (sendQueueSize < 10000)
{
m_nSendQueueSize = 10000;
}
m_nSendQueueSize = sendQueueSize;
m_isConnecting = false;
m_bCanSend = false;
remoteServerPort = 0;
}
VS_UINT32 magic;
uv_loop_t uvLoop;
uv_async_t uvEvent;
uv_tcp_t uvTcpClient;
uv_connect_t uvTcpConnect;
uv_timer_t uvTimer;
VsTcpClient_OnConnectStatusCallback cbConnectStatus;
VsTcpClient_OnRecvDataCallback cbRecvData;
bool m_isConnecting;//正在连接中
std::atomic_bool m_bCanSend;//可以发送
bool m_bAllowLost; //允许发送数据丢失
VS_UINT32 m_nSendQueueSize;
std::string remoteServerAddr;
VS_UINT16 remoteServerPort;
std::mutex m_mutexTask;
std::list<VsTcpClientTask> m_listTask;
std::unique_ptr<std::thread> netThread;
//发送队列
VsTcpSendQueue m_sendQueue;
std::mutex m_mutexSend;
//接收buf
std::unique_ptr<VS_INT8[]> m_spRecvData;
//临时发送buf,用来组大包发送
std::unique_ptr<VS_INT8[]> m_spSendTempData;
};
//内部静态函数
//写数据结果
static void VSTcpClient_cb_write_result(uv_write_t* req, int status);
//在网络线程的发送
static void VSTcpClient_send(VsTcpClientContext *context);
//连接回调
static void VSTcpClient_conn_cb(uv_connect_t* req, VS_INT32 status);
//读内存分配
static void VSTcpClient_before_read(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf);
//读回调
static void VSTcpClient_cb_read(uv_stream_t *handle, ssize_t nread, const uv_buf_t *buf);
//关闭客户端
static void VSTcpClient_cb_after_close(uv_handle_t* handle);
//定时器
static void VSTcpClient_cb_timer(uv_timer_t* timer_handle);
//异步请求
static void VSTcpClient_postTask(VsTcpClientContext *context, VsTcpClientTask &&task);
//判断是否为正确的句柄
#define CHECK_AND_GET_CLIENT_HANDLE(clientHandle) \
VsTcpClientContext *_this = static_cast<VsTcpClientContext*>(clientHandle);\
if (nullptr == _this)\
{\
LOG_ERROR(MODULE_NAME, "VsTcpClient::%s VsTcpClientContext is nullptr ", __FUNCTION__);\
return;\
}\
if(_this->magic != VsTcpClient_Magic){\
LOG_ERROR(MODULE_NAME, "VsTcpClient::%s VsTcpClientContext is no valind client handle ", __FUNCTION__); \
return; \
}
//投递任务到队列所以操作都在网络线程处理
void VSTcpClient_postTask(VsTcpClientContext *context ,VsTcpClientTask &&task)
{
std::lock_guard<std::mutex> locker(context->m_mutexTask);
context->m_listTask.emplace_back(std::move(task));
}
//在网络线程里面调用
void VSTcpClient_send(VsTcpClientContext *context)
{
if (!context->m_bCanSend)
{
return ;
}
VsTcpSendQueue sendQueues;
{
std::lock_guard<std::mutex> locker(context->m_mutexSend);
sendQueues = std::move(context->m_sendQueue);
}
try
{
//组大包发出去,这样效率更高
while (1)
{
VS_UINT32 curDataTotalLen = 0;
VS_INT8* sendBuf = context->m_spSendTempData.get();
bool hasData = true;
std::vector<VS_INT8> vecData;
while (1)
{
vecData.clear();
if (sendQueues.empty())
{
if (0 == curDataTotalLen)
{
hasData = false;
}
break;
}
vecData = sendQueues.front();
VS_UINT32 curDataLen = vecData.size();
if (curDataTotalLen + curDataLen > VSTcpClientSendOnceMaxSize)
{
break;
}
sendQueues.pop();
memcpy(sendBuf + curDataTotalLen, vecData.data(), curDataLen);
curDataTotalLen += curDataLen;
}
if (!hasData)
{
break;
}
uv_buf_t buf = uv_buf_init(sendBuf, curDataTotalLen);
uv_write_t *reqWrite = new uv_write_t();
reqWrite->data = context;
VS_INT32 ret = uv_write(reqWrite, (uv_stream_t*)&context->uvTcpClient, &buf, 1, VSTcpClient_cb_write_result);
if (0 > ret)
{
std::lock_guard<std::mutex> locker(context->m_mutexSend);
context->m_sendQueue.emplace(std::move(std::vector<VS_INT8>{sendBuf, sendBuf + curDataTotalLen}));
context->m_bCanSend = false;
LOG_ERROR(MODULE_NAME,"send fail");
break;
}
}
}
catch (const std::exception&e)
{
LOG_ERROR(MODULE_NAME,"send fail%s",e.what());
}
}
static void VsTcpClient_printErrorUvNetworkLog(const VS_INT8* errType, VS_INT32 errCode)
{
LOG_INFO(MODULE_NAME, "VsTcpClient_printErrorUvNetworkLog,type:[%s],uvErrName:[%s],uvErr:[%s],uvCode:[%d]", errType, uv_err_name(errCode), uv_strerror(errCode), errCode);
}
void VSTcpClient_cb_timer(uv_timer_t* timer_handle)
{
CHECK_AND_GET_CLIENT_HANDLE(timer_handle->data);
//处理任务队列
std::list<VsTcpClientTask> listTasks;
{
std::lock_guard<std::mutex> locker(_this->m_mutexTask);
listTasks = std::move(_this->m_listTask);
}
for (auto &curList : listTasks)
{
curList();
}
}
void VSTcpClient_cb_after_close(uv_handle_t* handle)
{
CHECK_AND_GET_CLIENT_HANDLE(handle->data);
_this->m_bCanSend = false;
_this->cbConnectStatus(VsTcpClient_ConnectStatus::VsTcpClient_DisConnect);
LOG_INFO(MODULE_NAME, "VSTcpClient_cb_after_close---client disconnect");
}
void VSTcpClient_before_read(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf)
{
CHECK_AND_GET_CLIENT_HANDLE(handle->data);
VS_UINT32 recvLen = suggested_size > VSTcpClientRecvDataMaxSize ? VSTcpClientRecvDataMaxSize : suggested_size;
buf->base =_this->m_spRecvData.get();
buf->len = recvLen;
}
void VSTcpClient_cb_read(uv_stream_t *handle, ssize_t nread, const uv_buf_t *buf)
{
CHECK_AND_GET_CLIENT_HANDLE(handle->data);
if (0 > nread)
{
VsTcpClient_printErrorUvNetworkLog("VSTcpClient_cb_read", nread);
if (0 == _this->cbConnectStatus)
{
LOG_ERROR(MODULE_NAME, "VSTcpClient_cb_read---cbConnectStatus not set");
return;
}
_this->m_bCanSend = false;
_this->cbConnectStatus(VsTcpClient_ConnectStatus::VsTcpClient_DisConnect);
return;
}
if (0 == nread)
{
return;
}
if (0 == _this->cbRecvData)
{
LOG_ERROR(MODULE_NAME, "VSTcpClient_cb_read---cbRecvData not set");
return;
}
_this->cbRecvData(buf->base, nread);
}
void VSTcpClient_cb_write_result(uv_write_t* req, int status)
{
CHECK_AND_GET_CLIENT_HANDLE(req->data);
if (0 > status)
{
VsTcpClient_printErrorUvNetworkLog("VSTcpClient_cb_write_result", status);
if (status == UV_EAGAIN)
{
// 队列满的收,什么都不要做
// 也还是发送状态,不能再往网络队列里做东西
}
else
{
LOG_INFO(MODULE_NAME, "VSTcpClient_cb_write_result, write err:[%d]", status);
_this->m_bCanSend = false;
_this->cbConnectStatus(VsTcpClient_ConnectStatus::VsTcpClient_DisConnect);
}
delete req;
return;
}
delete req;
}
//连接结果回调
void VSTcpClient_conn_cb(uv_connect_t* req, VS_INT32 status)
{
CHECK_AND_GET_CLIENT_HANDLE(req->data);
_this->m_isConnecting = false;
if (0 == _this->cbConnectStatus)
{
LOG_ERROR(MODULE_NAME, "VSTcpClient_cb_read---cbConnectStatus not set");
return;
}
if (status != 0)
{
VsTcpClient_printErrorUvNetworkLog("VSTcpClient_conn_cb", status);
_this->m_bCanSend = false;
_this->cbConnectStatus(VsTcpClient_ConnectStatus::VsTcpClient_DisConnect);
return;
}
_this->m_bCanSend = true;
//连接成功,发送未连接前的数据
if (_this->m_bAllowLost)
{
VsTcpSendQueue clearSendQueue;
std::lock_guard<std::mutex> locker(_this->m_mutexSend);
_this->m_sendQueue.swap(clearSendQueue);
}
else
{
VSTcpClient_send(_this);
}
_this->cbConnectStatus(VsTcpClient_ConnectStatus::VsTcpClient_NewConnect);
//连接成功发起异步读请求
VS_INT32 ret = uv_read_start((uv_stream_t*)&_this->uvTcpClient, VSTcpClient_before_read, VSTcpClient_cb_read);
if (0 != ret)
{
VsTcpClient_printErrorUvNetworkLog("uv_read_start", ret);
}
}
VS_HANDLE VsTcpClient_start(bool isAllowLost /*= VS_TRUE*/, VS_UINT32 sendQueueNum)
{
VsTcpClientContext *_this = new VsTcpClientContext(isAllowLost, sendQueueNum);
std::atomic_bool isInitFinish = false;
_this->netThread = std::make_unique<std::thread>([&isInitFinish,_this] {
//loop init
VS_INT32 ret = uv_loop_init(&_this->uvLoop);
if (0 != ret)
{
VsTcpClient_printErrorUvNetworkLog("VsTcpClient_start---uv_loop_init fail", ret);
return;
}
_this->uvLoop.data = _this;
ret = uv_timer_init(&_this->uvLoop, &_this->uvTimer);
if (0 != ret)
{
VsTcpClient_printErrorUvNetworkLog("VsTcpClient_start---uv_timer_init fail", ret);
return;
}
_this->uvTimer.data = _this;
ret = uv_timer_start(&_this->uvTimer, VSTcpClient_cb_timer, 100, VSTcpClientTimeroutValue);
if (0 != ret)
{
VsTcpClient_printErrorUvNetworkLog("VsTcpClient_start---uv_timer_start fail", ret);
return;
}
LOG_INFO(MODULE_NAME, "uv run threadID:[%d]", std::this_thread::get_id());
isInitFinish = true;
uv_run(&_this->uvLoop, UV_RUN_DEFAULT);
LOG_INFO(MODULE_NAME, "uv run quit");
});
VS_UINT32 initTimerout = 0;
while(!isInitFinish&&initTimerout<50)//5s
{
initTimerout++;
Sleep(100);
}
if (!isInitFinish)
{
delete _this;
_this = nullptr;
return nullptr;
}
return _this;
}
void VsTcpClient_stop(VS_HANDLE clientHandle)
{
CHECK_AND_GET_CLIENT_HANDLE(clientHandle);
VsTcpClient_close(clientHandle);
VSTcpClient_postTask(_this, [_this] {
uv_timer_stop(&_this->uvTimer);
uv_close((uv_handle_t*)&_this->uvTimer, NULL);
uv_stop(&_this->uvLoop);
if (nullptr != _this->netThread)
{
if (_this->netThread->joinable())
{
_this->netThread->join();
_this->netThread = nullptr;
}
}
if (nullptr != _this)
{
delete _this;
}
});
}
void VsTcpClient_setDelegate(VS_HANDLE clientHandle, VsTcpClient_OnConnectStatusCallback cbConnectStatus, VsTcpClient_OnRecvDataCallback cbRecvMsg)
{
CHECK_AND_GET_CLIENT_HANDLE(clientHandle);
_this->cbConnectStatus = cbConnectStatus;
_this->cbRecvData = cbRecvMsg;
}
void VsTcpClient_asyncConnect(VS_HANDLE clientHandle, const std::string & remoteServerAddr, VS_UINT16 remotePort)
{
CHECK_AND_GET_CLIENT_HANDLE(clientHandle);
VSTcpClient_postTask(_this, [_this, remoteServerAddr, remotePort] {
if (_this->m_isConnecting)
{
LOG_ERROR(MODULE_NAME, "VsTcpClient_asyncConnect connecting ");
return;
}
_this->remoteServerAddr = remoteServerAddr;
_this->remoteServerPort = remotePort;
struct sockaddr_in bind_addr = {};
VS_INT32 ret = uv_ip4_addr(remoteServerAddr.c_str(), remotePort, &bind_addr);
if (0 != ret)
{
VsTcpClient_printErrorUvNetworkLog("VsTcpClient_start---uv_ip4_addr fail", ret);
return;
}
ret = uv_tcp_init(&_this->uvLoop, &_this->uvTcpClient);
if (0 != ret)
{
VsTcpClient_printErrorUvNetworkLog("VsTcpClient_start---uv_tcp_init fail", ret);
return;
}
_this->uvTcpClient.data = _this;
_this->uvTcpConnect.data = _this;
ret = uv_tcp_connect(&_this->uvTcpConnect, &_this->uvTcpClient, (const struct sockaddr*)&bind_addr, VSTcpClient_conn_cb);
if (0 != ret)
{
VsTcpClient_printErrorUvNetworkLog("VsTcpClient_asyncConnect", ret);
return;
}
});
}
void VsTcpClient_reConnect(VS_HANDLE clientHandle)
{
CHECK_AND_GET_CLIENT_HANDLE(clientHandle);
if (_this->remoteServerAddr == "" || _this->remoteServerPort == 0)
{
LOG_ERROR(MODULE_NAME, "VsTcpClient_reConnect renmote connect info invalid,is not call asynconnect? ");
return;
}
VsTcpClient_asyncConnect(clientHandle, _this->remoteServerAddr, _this->remoteServerPort);
}
void VsTcpClient_close(VS_HANDLE clientHandle)
{
CHECK_AND_GET_CLIENT_HANDLE(clientHandle);
VSTcpClient_postTask(_this, [_this] {
if (uv_is_active((uv_handle_t*)&_this->uvTcpClient)) {
uv_read_stop((uv_stream_t*)&_this->uvTcpClient);
}
uv_close((uv_handle_t*)&_this->uvTcpClient, VSTcpClient_cb_after_close);
});
}
void VsTcpClient_sendData(VS_HANDLE clientHandle, const std::vector<VS_INT8> &vecData)
{
CHECK_AND_GET_CLIENT_HANDLE(clientHandle);
VS_UINT32 dataLen = vecData.size();
if (_this->m_bAllowLost)
{
std::lock_guard<std::mutex> locker(_this->m_mutexSend);
if (_this->m_sendQueue.size() > _this->m_nSendQueueSize)
{
LOG_ERROR(MODULE_NAME,"VsTcpClient_sendData fail ,send queue full :[%u],data lost:[%u]", _this->m_nSendQueueSize,dataLen);
return;
}
}
//不允许丢失,阻塞等待队列不满
while (1)
{
static int printCount = 0;
std::lock_guard<std::mutex> locker(_this->m_mutexSend);
if (_this->m_sendQueue.size() < _this->m_nSendQueueSize)
{
printCount = 0;
if (dataLen < VSTcpClientSendOnceMaxSize)
{
_this->m_sendQueue.emplace(std::move(vecData));
break;
}
//如果应用层一次发送超过VSTcpClientSendOnceMaxSize的大小数据,则这里拆包放进队列,因为发送时需要组大包发送,分配了临时buf
VS_UINT32 dataOffset = 0;
while(dataLen>0)
{
VS_UINT32 curPacketSize = dataLen > VSTcpClientSendOnceMaxSize ? VSTcpClientSendOnceMaxSize : dataLen;
std::vector<VS_INT8> vecBuf;
vecBuf.insert(vecBuf.end(), vecData.data() + dataOffset, vecData.data() + dataOffset+curPacketSize);
_this->m_sendQueue.emplace(std::move(vecBuf));
dataOffset += curPacketSize;
dataLen -= curPacketSize;
}
break;
}
if (++printCount > 1000)
{
printCount = 0;
LOG_ERROR(MODULE_NAME,"VsTcpClient_sendData buf full ,wait buf no full");
}
Sleep(10);
}
VSTcpClient_postTask(_this,[_this] {
VSTcpClient_send(_this);
});
}
void VsTcpClient_sendData(VS_HANDLE clientHandle, const std::string &strData)
{
std::vector<VS_INT8> vecBuf;
vecBuf.insert(vecBuf.end(), strData.begin(),strData.end());
VsTcpClient_sendData(clientHandle, vecBuf);
}
void VsTcpClient_sendData(VS_HANDLE clientHandle, VS_INT8* data, VS_UINT32 dataLen)
{
std::vector<VS_INT8> vecBuf;
vecBuf.insert(vecBuf.end(), data, data+ dataLen);
VsTcpClient_sendData(clientHandle, vecBuf);
}