rostests/tests/suspend/suspend.c

   1 #define UNICODE
   2 #define WIN32_NO_STATUS
   3 #include <windows.h>
   4 #include <stdio.h>
   5 #define NTOS_MODE_USER
   6 #include <ndk/ntndk.h>
   7
   8 #define NDEBUG
   9 #include <debug.h>
  10
  11 static volatile DWORD z;
  12 static volatile DWORD x=0;
  13
  14 static NTSTATUS WINAPI
  15 thread_1(PVOID Param)
  16 {
  17   DWORD y=0;
  18
  19   for(;;)
  20   {
  21    z++;
  22    if(x>50)
  23    {
  24      printf("I should have been suspended for years :-)\n");
  25      Sleep(100);
  26      x=0;y++;
  27      if(y==3) ExitProcess(0);
  28    }
  29   }
  30 }
  31
  32 int
  33 main(int argc, char *argv[])
  34 {
  35   HANDLE thread;
  36   DWORD thread_id;
  37   CONTEXT context;
  38
  39   context.ContextFlags=CONTEXT_CONTROL;
  40
  41   z=0;
  42   thread=CreateThread(NULL,
  43                       0x1000,
  44                       (LPTHREAD_START_ROUTINE)thread_1,
  45                       NULL,
  46                       0,
  47                       &thread_id);
  48
  49   if(!thread)
  50   {
  51     printf("Error: could not create thread ...\n");
  52     ExitProcess(0);
  53   }
  54
  55   Sleep(1000);
  56
  57   SuspendThread(thread);
  58
  59   for(;;)
  60   {
  61     printf("%lx ", z);
  62     Sleep(100);x++;
  63     if(x>100 && GetThreadContext(thread, &context))
  64     {
  65       printf("EIP: %lx\n", context.Eip);
  66       printf("Calling resumethread ... \n");
  67       ResumeThread(thread);
  68     }
  69   }
  70
  71   ExitProcess(0);
  72   return(0);
  73 }