jincheng.rar_进程同步

#include<iostream> #include<time.h> using namespace std; int apple=0; int orange=0; int Plate_Size=0; int Son_a,Daughter_b,MonFa_c; bool Father_lag; bool Mother_lag; bool Son1_lag; bool Son2_lag; bool Daughter1_lag; bool Daughter2_lag; void Print() { cout<<"现在盘子里有"<<apple<<"个苹果,"<<orange<<"个橘子,"<<"共有"<<apple+orange<<"个水果."<<endl; if(Father_lag==true) cout<<"Father进程处于等待状态,"; if(Mother_lag==true) cout<<"Mother进程处于等待状态,"; if(Son1_lag==true) cout<<"Son1进程处于等待状态,"; if(Son2_lag==true) cout<<"Son2进程处于等待状态, "; if(Daughter1_lag==true) cout<<"Daughter1进程处于等待状态,"; if(Daughter2_lag==true) cout<<"Daughter2进程处于等待状态,"; if(((Father_lag==false)&&(Mother_lag==false)&&(Son1_lag==false)&&(Son2_lag==false)&&(Daughter1_lag==false)&&(Daughter2_lag==false))!=true) cout<<endl; } void Father() //Father进程 { apple++; Print(); } void Mother() //Mother进程 { orange++; Print(); } void Son1() //Son1进程 { orange--; Print(); } void Son2() //Son2进程 { orange--; Print(); } void Daughter1() //Daughter1进程 { apple--; Print(); } void Daughter2() //Daughter2进程 { apple--; Print(); } void main() { int k; srand((unsigned)time(NULL));//srand()函数产生一个以当前时间开始的随机种子 for(k=0;k<10;k++) { cout<<"第"<<k+1<<"次操作:"<<endl; int i=rand()%6; //随进生成1—5. Plate_Size=apple+orange; switch(i) { case 0: cout<<"Father调用."<<endl; if(Plate_Size==2) { Father_lag=true;//Father()等待 Print(); if(Mother_lag==false) MonFa_c=1; } else { Father(); if((Daughter1_lag==true)&&(Daughter2_lag==true)) { if(Daughter_b==1) { Daughter1_lag=false;//Daughter1等待取消 cout<<"处于等待的Daughter1自动被调用"<<endl; Daughter1(); //处于等待的Daughter1自动调用 Daughter_b=2; } else { Daughter2_lag=false;//Daughter2等待取消 cout<<"处于等待的Daughter2自动被调用"<<endl; Daughter2(); //处于等待的Daughter2()自动调用 Daughter_b=1; } } else { if(Daughter1_lag==true) { Daughter1_lag=false;//Daughter1等待取消 cout<<"处于等待的Daughter1自动被调用"<<endl; Daughter1(); //处于等待的Daughter1()自动调用 Daughter_b=0; } else if(Daughter2_lag==true) { Daughter2_lag=false;//Daughter2等待取消 cout<<"处于等待的Daughter1自动被调用"<<endl; Daughter2(); //处于等待的Daughter2()自动调用 Daughter_b=0; } } } break; case 1: cout<<"Mother调用."<<endl; if(Plate_Size==2) { Mother_lag=true; //等待 Print(); if(Father_lag==false) MonFa_c=2; } else { Mother(); if((Son1_lag==true)&&(Son2_lag==true)) { if(Son_a==1) { Son1_lag=false;//Son1等待取消 cout<<"处于等待的Son1自动被调用"<<endl; Son1(); //处于等待的Son1()自动调用 Son_a=2; } else { Son2_lag=false;//Son2等待取消 cout<<"处于等待的Son2自动被调用"<<endl; Son2(); //处于等待的Son2()自动调用 Son_a=1; } } else { if(Son1_lag==true) { Son1_lag=false; //Son1等待取消 cout<<"处于等待的Son1自动被调用"<<endl; Son1(); //处于等待的Son1()自动调用 Son_a=0; } else if(Son2_lag==true) { Son2_lag=false; //Son2等待取消 cout<<"处于等待的Son2自动被调用"<<endl; Son2(); //处于等待的Son2()自动调用 Son_a=0; } } } break; case 2: cout<<"Son1调用."<<endl; if(orange==0) { Son1_lag=true; //Son1处于等待 Print(); if(Son2_lag==false) Son_a=1; //用于判断Son1和Son2等待的先后性 } else { Son1(); if((Father_lag==true)&&(Mother_lag==true)) { if(MonFa_c==1) //Father和Mother同时处于等待，但Father先等待，因此先调用 { Father_lag=false; cout<<"处于等待的Father自动被调用"<<endl; Father(); MonFa_c=2; } else //Father和Mother同时处于等待，但Mother先等待，因此先调用 { Mother_lag=false; cout<<"处于等待的Mother自动被调用"<<endl; Mother(); MonFa_c=1; } } else { if(Father_lag==true) //只有Father处于等待，调用 { Father_lag=false; cout<<"处于等待的Father自动被调用"<<endl; Father(); MonFa_c=0; } else if(Mother_lag==true)//只有Mother处于等待，调用 { Mother_lag=false; cout<<"处于等待的Mother自动被调用"<<endl; Mother(); MonFa_c=0; } } } break; case 3: cout<<"Son2调用."<<endl; if(orange==0) { Son2_lag=true; //Son2处于等待 Print(); if(Son1_lag==false) Son_a=2; } else { Son2(); if((Father_lag==true)&&(Mother_lag==true)) { if(MonFa_c==1)//Father和Mother同时处于等待，但Father先等待，因此先调用 { Father_lag=false; cout<<"处于等待的Father自动被调用"<<endl; Father(); MonFa_c=2; } else //Father和Mother同时处于等待，但Mother先等待，因此先调用 { Mother_lag=false; cout<<"处于等待的Mother自动被调用"<<endl; Mother(); MonFa_c=1; } } else { if(Father_lag==true) //只有Father处于等待，调用 { Father_lag=false; cout<<"处于等待的Father自动被调用"<<endl; Father(); MonFa_c=0; } else if(Mother_lag==true) //只有Mother处于等待，调用 { Mother_lag=false; cout<<"处于等待的Mother自动被调用"<<endl; Mother(); MonFa_c=0; } } } break; case 4: cout<<"Daughter1调用."<<endl; if(apple==0) { Daughter1_lag=true; //Daughter1等待 Print(); if(Daughter2_lag==false) Daughter_b=1; } else { Daughter1(); if((Father_lag==true)&&(Mother_lag==true)) { if(MonFa_c==1) //Father和Mother同时处于等待，但Father先 { //等待，因此先调用 Father_lag=false; cout<<"处于等待的Father自动被调用"<<endl; Father(); MonFa_c=2; } else //Father和Mother同时处于等待，但Mother先等待，因此先调用 { Mother_lag=false; cout<<"处于等待的Mother自动被调用"<<endl; Mother(); MonFa_c=1; } } else { if(Father_lag==true) //只有Father处于等待，调用 { Father_lag=false; cout<<"处于等待的Father自动被调用"<<endl; Father(); MonFa_c=0; } else if(Mother_lag==true) //只有Mother处于等待，调用 { Mother_lag=false; cout<<"处于等待的Mother自动被调用"<<endl; Mother(); MonFa_c=0; } } } break; case 5: cout<<"Daughter2调用."<<endl; if(apple==0) { Daughter2_lag=true; //Daughter2等待 Print(); if(Daughter1_lag==false) Daughter_b=2; } else { Daughter2(); if((Father_lag==true)&&(Mother_lag==true)) { if(MonFa_c==1) //Father和Mother同时处于等待，但Father先等待，因此先调用 { Father_lag=false; cout<<"处于等待的Father自动被调用"<<endl; Father(); MonFa_c=2; } else //Father和Mother同时处于等待，但Mother先等待，因此先调用 { Mother_lag=false; cout<<"处于等待的Mother自动被调用"<<endl; Mother(); MonFa_c=1; } } else { if(Father_lag==true) //只有Father处于等待，调用 { Father_lag=false; cout<<"处于等待的Father自动被调用"<<endl; Father(); MonFa_c=0; } else if(Mother_lag==true) //只有Mother处于等待，调用 { Mother_lag=false; cout<<"处于等待的Mother自动被调用"<<endl; Mother(); MonFa_c=0; } } } break; } } }