操作系统实验二：进程与线程

#include "windows.h" #include "tlhelp32.h" #include <iostream> using namespace std; void main(int argc, char* argv[]) { FILETIME CreationTime; //指定一个FILETIME结构，在其中装载进程的创建时间 FILETIME ExitTime; //指定一个FILETIME结构，在其中装载进程的中止时间 FILETIME KernelTime; //指定一个FILETIME结构，在其中装载进程花在内核模式上的总时间 FILETIME UserTime; //指定一个FILETIME结构，在其中装载进程花在用户模式上的总时间 _SYSTEMTIME systemtime; HANDLE hSnapshot=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0); PROCESSENTRY32 pe; ZeroMemory(&pe,sizeof(pe)); pe.dwSize=sizeof(pe); BOOL bMore=Process32First(hSnapshot,&pe); while (bMore) { HANDLE hProcess=OpenProcess(PROCESS_QUERY_INFORMATION, FALSE,pe.th32ProcessID); if (hProcess!=NULL) { printf("process ID: %d.exe file: %s \n", pe.th32ProcessID, pe.szExeFile); } GetProcessTimes(hProcess, &CreationTime, &ExitTime, &KernelTime, &UserTime); FileTimeToSystemTime(&CreationTime, &systemtime); printf("Process set-up time:(h:m:s) \n"); printf("%d : %d : %d \n", systemtime.wHour, systemtime.wMinute, systemtime.wSecond); FileTimeToSystemTime(&KernelTime, &systemtime); printf("Time in the core state:(s:ms) \n"); printf("%d :%d \n", systemtime.wSecond, systemtime.wMilliseconds); FileTimeToSystemTime(&UserTime, &systemtime); printf("Time in user mode:(s:ms) \n"); printf("%d :%d \n", systemtime.wSecond, systemtime.wMilliseconds); printf("\n"); bMore=Process32Next(hSnapshot,&pe); } }