terminate.c

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#define UNICODE
#define WIN32_NO_STATUS
#include <windows.h>
#include <stdio.h>
#define NTOS_MODE_USER
#include <ndk/ntndk.h>
 
#define NDEBUG
#include <debug.h>
 
static volatile DWORD z;
static volatile DWORD x=0;
 
static NTSTATUS WINAPI
thread_1(PVOID Param)
{
  DWORD y=0;
 
  for(;;)
  {
   z++;
   if(x>50)
   {
     Sleep(100);
     x=0;y++;
     if(y==3) return(0);
   }
  }
}
 
int
main(int argc, char *argv[])
{
  HANDLE thread;
  DWORD thread_id;
  CONTEXT context;
  DWORD z = 0;
 
  context.ContextFlags=CONTEXT_CONTROL;
 
  while (z < 50)
    {
      z++;
      thread=CreateThread(NULL,
              0x1000,
              (LPTHREAD_START_ROUTINE)thread_1,
              NULL,
              0,
              &thread_id);
 
      if(!thread)
    {
      printf("Error: could not create thread ...\n");
      ExitProcess(0);
    }
 
      Sleep(1000);
 
      printf("T");
      if ((z % 5) == 0)
    {
      TerminateThread(thread, 0);
    }
      printf("C");
      GetThreadContext(thread, &context);
      printf("S");
      SuspendThread(thread);
      printf("R");
      ResumeThread(thread);
      TerminateThread(thread, 0);
    }
 
  ExitProcess(0);
  return(0);
}