EtwpCompressionProc

VOID __stdcall EtwpCompressionProc(PVOID Context){
  signed __int32 i; 
  bool v3; 
  int v4; 
  _ETHREAD *CurrentThread; 
  unsigned int SessionId; 
  char v7; 
  int v8; 
  unsigned __int64 v9; 
  __int64 v10; 
  int v11; 
  unsigned int v12; 
  __int64 v13; 
  int v14; 
  for( i = _InterlockedExchangeAdd((volatile signed __int32 *)Context + 280, 0xFFFFFFFF);
        ;
        i = _InterlockedExchangeAdd((volatile signed __int32 *)Context + 280, 0xFFFFFFFF) )
  {
    v3 = i == 2;
    v4 = *((_DWORD *)Context + 288);
    if( !v3 )
      break;
    if( v4 )
      EtwpCompressPendingBuffers((__int64)Context);
  }
  if( !v4 )
  {
    ExAcquirePushLockExclusiveEx((UINT64)Context + 1128, 0i64);
    EtwpRelinquishCompressionTarget((INT64)Context);
    if( (_InterlockedExchangeAdd64((volatile signed __int64 *)Context + 141, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
      ExfTryToWakePushLock((volatile INT64 *)Context + 141);
    v14 = 0;
    CurrentThread = (_ETHREAD *)KeGetCurrentThread();
    if( (unsigned int)MiGetSystemRegionType((UINT64)Context + 1128) == 1 )
      SessionId = MmGetSessionIdEx(*((_QWORD *)CurrentThread + 23));
    else
      SessionId = -1;
    --*((_WORD *)CurrentThread + 243);
    v7 = ++*((_BYTE *)CurrentThread + 794);
    v8 = (*((char *)CurrentThread + 792) | *((char *)CurrentThread + 870)) ^ 0x3F;
    while( 1 )
    {
      v3 = !_BitScanReverse((unsigned int *)&v10, v8);
      if( v3 )
        goto LABEL_19;
      v9 = *((_QWORD *)CurrentThread + 100) + 96 * v10;
      v8 &= ~(1 << v10);
      if( (*(_BYTE *)(v9 + 26) & 1) != 0
        && (*(_DWORD *)(v9 + 32) & 1) == 0
        && (*(_QWORD *)(v9 + 32) & 0x7FFFFFFFFFFFFFFCi64) == (((unsigned __int64)Context + 1128) & 0x7FFFFFFFFFFFFFFCi64)
        && *(_DWORD *)(v9 + 40) == SessionId )
      {
        *(_BYTE *)(v9 + 26) &= ~1u;
        if( *(_QWORD *)(v9 + 32) )
          break;
      }
    }
    if( !v9 )
    {
LABEL_19:
      if( (*((_DWORD *)CurrentThread + 30) & 0x10000) == 0 )
        KeBugCheckEx(0x162u, (ULONG_PTR)CurrentThread, (ULONG_PTR)Context + 1128, SessionId, 0i64);
      goto LABEL_26;
    }
    *(_BYTE *)(v9 + 32) |= 2u;
    if( *(__int64 *)(v9 + 32) < 0 )
      KiAbEntryRemoveFromTree(v9);
    v11 = *(_DWORD *)(v9 + 88) & 0x1FFFF;
    v12 = *(_DWORD *)(v9 + 88) & 0xFFFE0000;
    *(_BYTE *)(v9 + 25) &= ~1u;
    v14 = v11;
    *(_DWORD *)(v9 + 88) = v12;
    *(_QWORD *)(v9 + 32) = 0i64;
    v13 = (__int64)(v9 - *((_QWORD *)CurrentThread + 100)) / 96;
    if( v7 == 1 )
      *((_BYTE *)CurrentThread + 792) |= 1 << v13;
    else
      _InterlockedOr8((volatile signed __int8 *)CurrentThread + 870, 1 << v13);
LABEL_26:
    --*((_BYTE *)CurrentThread + 794);
    KiAbThreadRemoveBoosts((ULONG_PTR)CurrentThread, (__int64)Context + 1128, (unsigned int *)&v14);
    v3 = (*((_WORD *)CurrentThread + 243))++ == 0xFFFF;
    if( v3 && *((_ETHREAD **)CurrentThread + 19) != (_ETHREAD *)((char *)CurrentThread + 152) )
      KiCheckForKernelApcDelivery();
  }
  ExReleaseRundownProtectionCacheAwareEx(
    *(PEX_RUNDOWN_REF_CACHE_AWARE *)(*(_QWORD *)(*((_QWORD *)Context + 135) + 448i64) + 8i64 * *(unsigned int *)Context),
    1u);
}

Referenced by: