package main

/*
#include <windows.h>
BOOL SetPriority(DWORD pid, int priority) {
    HANDLE h = OpenProcess(PROCESS_ALL_ACCESS, 0, pid);
    if (!h) return FALSE;
    BOOL success = SetPriorityClass(h, priority);
    CloseHandle(h);
    return success;
}
*/
import "C"
import (
	"github.com/shirou/gopsutil/process"
	"os"
	"runtime"
	"time"
)

func main() {
	C.SetPriority(C.DWORD(os.Getpid()), 0x00000040)
	for {
		processes, _ := process.Processes()
		for _, proc := range processes {
			memoryInfo, err := proc.MemoryInfo()
			if err == nil && memoryInfo.RSS >= (0.5*1024*1024*1024) {
				C.SetPriority(C.DWORD(proc.Pid), 0x00000080)
			}
		}
		runtime.GC()
		time.Sleep(time.Minute)
	}
}