VslpSkStartProfiling

NTSTATUS __stdcall VslpSkStartProfiling(UINT16 *a1){
  NTSTATUS result; 
  unsigned int v3; 
  unsigned int v4; 
  unsigned __int64 v5; 
  size_t v6; 
  VOID **PoolWithTag; 
  _DWORD *v8; 
  size_t v9; 
  int v10; 
  UINT64 v11; 
  INT64 v12[2]; 
  __int128 v13; 

  *(_OWORD *)v12 = 0i64;
  v13 = 0i64;
  result = WmiQueryTraceInformation(TraceSessionSettingsClass, v12, 0x20ui64, &v11, a1);
  if( result >= 0 )
  {
    v3 = HIDWORD(v12[1]);
    v4 = HIDWORD(v12[0]);
    v5 = ((unsigned __int64)HIDWORD(v12[1]) + 63) >> 6;
    if( HIDWORD(v12[0]) > 0x48 )
    {
      if( DWORD1(v13) )
        VslpFlushTimerInterval = DWORD1(v13);
      v6 = 16 * (((unsigned __int64)HIDWORD(v12[1]) + 63) >> 6) + HIDWORD(v12[1]) * HIDWORD(v12[0]) + 24;
      PoolWithTag = ExAllocatePoolWithTag(0x200ui64, v6, 1416850774i64);
      *(&stru_140C452E0 + 960) = PoolWithTag;
      v8 = PoolWithTag;
      if( PoolWithTag )
      {
        memset(PoolWithTag, 0i64, v6);
        v8[2] = v5;
        v9 = 8 * v5;
        v8[1] = v4;
        v8[3] = v6;
        *v8 = v3;
        memset(v8 + 6, 255i64, v9);
        memset(&v8[2 * v8[2] + 6], 0i64, v9);
        *(&stru_140C452E0 + 959) = *a1;
        VslpSkCreateBuffers(v4, v3);
        ExInitializePushLock((PULONG_PTR)&stru_140C452E0 + 956);
        v10 = VslpSkMapBuffers();
        if( v10 >= 0 )
        {
          KeInitializeTimerEx((INT64)&stru_140C452E0 + 7712, 0);
          KeInitializeDpc((PRKDPC)((char *)&stru_140C452E0 + 7776), VslpSkFlushBufferCallback, 0i64);
          KiSetTimerEx(
            (_KTIMER *)((char *)&stru_140C452E0 + 7712),
            (_LARGE_INTEGER)(-10000000i64 * (unsigned int)VslpFlushTimerInterval),
            0i64,
            0,
            (_KDPC *)((char *)&stru_140C452E0 + 7776));
        }
        else
        {
          ExFreePoolWithTag(*(&stru_140C452E0 + 960), 0x54736D56u);
          *(&stru_140C452E0 + 960) = 0i64;
          *(&stru_140C452E0 + 959) = 0i64;
        }
        return v10;
      }
      else
      {
        return -1073741670;
      }
    }
    else
    {
      return -1073741811;
    }
  }
  return result;
}

Referenced by: