Added.
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Saturneic
parent
595034f3f4
commit
98ddf7ed6f
57
cthread.cpp
57
cthread.cpp
@ -10,7 +10,9 @@
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static struct itimerval oitrl, itrl;
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CThread::CThread(CMap *tp_map):p_map(tp_map),idxtid(0){
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list<CThread *> daemon_list = {};
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CThread::CThread(CMap *tp_map,int thdnum):p_map(tp_map),idxtid(0),thdnum(thdnum){
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lpcs.if_als = false;
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// 构造空的传入与传出参数列表
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for(auto k = p_map->cparts.begin(); k != p_map->cparts.end(); k++){
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@ -88,6 +90,7 @@ void CThread::Analyse(void){
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vector<void *> args_out = rargs_out.find(ditem->t_cpart->name)->second;
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// 检查传入传出参数的类型是否匹配
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for(auto itm = args.begin(); itm != args.end();itm++){
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// 参数不匹配则报异常
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if(s_fargs_in[count++] != f_fargs_out[*itm]) throw "type conflict";
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// 重新分配内存
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if(f_fargs_out[*itm] == INT){
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@ -100,6 +103,8 @@ void CThread::Analyse(void){
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}
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lpcs.line.push_back((*k).second);
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// 大于线程最高并行数则跳出
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if(count == thdnum) break;
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}
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}
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// 如果该计算模块没有依赖模块
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@ -132,43 +137,45 @@ void CThread::DoLine(void){
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throw "fail to create thread";
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}
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lpcs.threads.insert({ntid,npdt});
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lpcs.cpttid.insert({(*pcp),ntid});
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}
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}
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void CThread::SetDaemon(void){
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daemon_list.push_back(this);
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}
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void CThread::Daemon(void){
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// 等待线程返回
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// 等待线程返回
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for(auto i = lpcs.child_finished.begin(); i != lpcs.child_finished.end(); i++){
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unsigned long tid = (*i)->tid;
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pthread_t cpdt = lpcs.threads.find(tid)->second;
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struct thread_args *rpv = nullptr;
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pthread_join(cpdt, (void **)&rpv);
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// 根据返回值处理计算任务状态
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// 根据返回值处理计算任务状态
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if(rpv->rtn == SUCCESS){
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// 标识该计算模块中计算任务的状态
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// 标识该计算模块中计算任务的状态
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ifsolved.find(rpv->pcp->name)->second = true;
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}
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else{
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}
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// 释放线程资源
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// 释放线程资源
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pthread_detach(cpdt);
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// 在列表中销户证实宣告线程程结束
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// 在列表中销户证实宣告线程程结束
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lpcs.threads.erase(tid);
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lpcs.cpttid.erase(rpv->pcp);
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printf("TID: %lu Deleted.\n",tid);
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delete rpv;
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}
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lpcs.child_finished.clear();
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if(lpcs.threads.size() > 0){
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setTrdClock(this);
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}
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}
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//子线程即将结束时调用
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void CThread::ChildThreadFSH(struct thread_args *pta){
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CThread *pct = pta->pct;
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(pct->lpcs).child_finished.push_back(pta);
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@ -176,11 +183,20 @@ void CThread::ChildThreadFSH(struct thread_args *pta){
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}
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void *CThread::NewThread(void *pv){
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// 取消信号对于线程起作用
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pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
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// 线程收到取消信号时立即取消
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pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS,NULL);
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struct thread_args *pta = (struct thread_args *)pv;
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printf("Calling TID %lu.\n",pta->tid);
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// 准备输入参数
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PrepareArgsIn(pta->pct,pta->pcp);
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if(pta->pcp->Run() == SUCCESS){
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// 检查线程是否已经被取消
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pthread_testcancel();
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// 取消信号对于线程不再起作用，以防参数混乱
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pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
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// 处理输出参数
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GetArgsOut(pta->pct,pta->pcp);
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pta->rtn = SUCCESS;
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@ -192,6 +208,10 @@ void *CThread::NewThread(void *pv){
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pthread_exit(pv);
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}
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long CThread::FindChildPCS(string name){
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return lpcs.cpttid.find(p_map->cparts.find(name)->second)->second;
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}
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void CThread::PrepareArgsIn(CThread *pct,CPart *pcp){
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// 读入实际计算进程参数列表中的输入参数
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vector<void *> args = pct->rargs.find(pcp->name)->second;
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@ -235,6 +255,15 @@ void CThread::GetArgsOut(CThread *pct,CPart *pcp){
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}
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int CThread::CancelChildPCS(unsigned long tid){
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// 找到子线程的操作柄
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pthread_t pht = lpcs.threads.find(tid)->second;
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pthread_cancel(pht);
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// 对线程进行销户操作
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lpcs.threads.erase(tid);
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return 0;
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}
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//设置全局线程时钟
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void setThreadsClock(void){
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itrl.it_interval.tv_sec = 0;
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@ -245,5 +274,13 @@ void setThreadsClock(void){
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}
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//时钟滴答调用函数
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void threadsClock(int n){
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printf("Clock click.\n");
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for(auto i = daemon_list.begin(); i != daemon_list.end(); i++){
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(*i)->Daemon();
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}
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daemon_list.clear();
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}
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//注册任务进程时钟调用
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void setTrdClock(CThread *ptd){
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daemon_list.push_back(ptd);
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}
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27
cthread.h
27
cthread.h
@ -19,8 +19,10 @@
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using std::list;
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class CThread;
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//线程信息记录结构体
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struct thread_args{
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// 子线程编号
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@ -41,10 +43,19 @@ struct line_process{
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list<struct thread_args *>child_finished;
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// 子线程管理状态记录
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map<unsigned long,pthread_t> threads;
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// 记录计算模块对应的线程id
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map<const CPart * const,unsigned long> cpttid;
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// 计算模块处理队列
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list<CPart *> line;
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};
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//外来数据包解析结构
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struct compute_result{
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string name;
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vector<void *> args_in;
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vector<void *> args_out;
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};
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//计算进程管理结构
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class CThread{
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public:
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@ -58,13 +69,15 @@ public:
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map<string,bool> ifsolved;
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// tid生成的依据
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unsigned long idxtid;
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// 并行线程的个数
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int thdnum;
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// 并行任务处理进程
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struct line_process lpcs;
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// 守护进程定时器
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struct itimerval itrl;
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// 使用图结构管理结构来构造计算进程管理结构
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CThread(CMap *tp_map);
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CThread(CMap *tp_map, int thdnum = 4);
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~CThread();
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template<class T>
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// 添加相关计算模块的传入参数
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@ -84,6 +97,16 @@ public:
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void Analyse(void);
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// 执行处理队列
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void DoLine(void);
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// 通过子线程所属的模块名找到子线程的id
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long FindChildPCS(string name);
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// 取消子线程
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int CancelChildPCS(unsigned long tid);
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// 处理数据包
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int GetCPUResult(struct compute_result *);
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// 导出数据包
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struct compute_result CPUResult(CPart *);
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// 查询计算模块是否已经解决
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CPart *IfCPTSolved(string name);
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// 建立新线程执行计算模块
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static void * NewThread(void *);
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// 为计算模块的调用准备输入参数
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@ -98,5 +121,7 @@ public:
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void setThreadsClock(void);
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//时钟滴答调用函数
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void threadsClock(int);
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//注册任务进程时钟调用
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void setTrdClock(CThread *ptd);
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#endif /* cthread_h */
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7
net.cpp
7
net.cpp
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#include "cmap.h"
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#include "cthread.h"
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extern list<CThread *> daemon_list;
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void init(void){
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signal(SIGALRM, threadsClock);
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setThreadsClock();
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@ -26,9 +28,10 @@ int main(void){
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thread.AddArgs<double>("C", 3.0);
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thread.Analyse();
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thread.DoLine();
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thread.SetDaemon();
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thread.CancelChildPCS(0);
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while(1){
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thread.Daemon();
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sleep(100);
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}
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return 0;
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}
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