c - 在C中获取当前进程CPU使用率

Question

在 Windows 上我可以做:

HANDLE hProcess = GetCurrentProcess();

FILETIME ftCreation, ftExit, ftKernel, ftUser;

GetProcessTimes(hProcess, &ftCreation, &ftExit, &ftKernel, &ftUser);

SYSTEMTIME stKernel;
FileTimeToSystemTime(&ftKernel, &stKernel);

SYSTEMTIME stUser;
FileTimeToSystemTime(&ftUser, &stUser);

printf("Time in kernel mode = %uh %um %us %ums", stKernel.wHour,
           stKernel.wMinute, stKernel.wSecond, stKernel.wMilliseconds));
printf("Time in user mode = %uh %um %us %ums", stUser.wHour,
           stUser.wMinute, stUser.wSecond, stUser.wMilliseconds));

我怎样才能在 *nix 上做同样的事情？

Answer 1

检查 getrusage ，我认为这应该可以解决您的问题。