MmResourcesAvailable

UINT64 __stdcall MmResourcesAvailable(POOL_TYPE PoolType, UINT64 NumberOfBytes, _EX_POOL_PRIORITY Priority){
  ULONG_PTR *v3; 
  unsigned int v4; 
  char v7; 
  UINT64 v8; 
  __int64 v9; 
  __int32 v10; 
  __int64 v11; 
  __int64 v12; 
  unsigned __int64 v13; 
  unsigned __int64 v14; 
  __int64 v15; 
  UINT64 v16; 
  UINT64 v17; 
  UINT64 v18; 
  ULONG_PTR v19; 
  struct _KEVENT *v20; 
  UINT64 v21; 
  _ETHREAD *CurrentThread; 
  struct _KEVENT *v24; 
  struct _KLOCK_QUEUE_HANDLE LockHandle; 
  v3 = &MiSystemPartition;
  v4 = 0;
  memset(&LockHandle, 0, sizeof(LockHandle));
  v7 = PoolType;
  v8 = (NumberOfBytes >> 12) + ((NumberOfBytes & 0xFFF) != 0);
  v9 = *(_QWORD *)(*((_QWORD *)KeGetCurrentThread() + 23) + 1368i64);
  v10 = PoolType & 1;
  if( (PoolType & 1) == 0 )
  {
    v11 = *(_QWORD *)MiState - qword_140C4C608;
LABEL_8:
    v16 = v11 << 12;
    goto LABEL_9;
  }
  if( (PoolType & 0x20) == 0 )
  {
    v11 = qword_140C4EC78 - qword_140C4EC68;
    goto LABEL_8;
  }
  v12 = *(_QWORD *)(*((_QWORD *)KeGetCurrentThread() + 23) + 1368i64);
  v13 = (__int64)*(int *)(v12 + 868) << 21;
  v14 = *(_QWORD *)(v12 + 184) << 12;
  v15 = v13 - v14;
  if( v13 <= v14 )
    v15 = 0i64;
  v16 = ((0x10000i64 - *(unsigned int *)(v12 + 872)) << 21) + v15;
  v3 = *(ULONG_PTR **)(qword_140C4E388 + 8i64 * *(unsigned __int16 *)(v9 + 430));
LABEL_9:
  v17 = NumberOfBytes + 0x80000;
  if( Priority != NormalPoolPriority )
    v17 = NumberOfBytes + 0x200000;
  if( v17 <= v16 )
  {
    if( (PoolType & 1) == 0 )
      goto LABEL_23;
    v18 = 0i64;
    v19 = v3[933];
    if( v19 <= v3[777] )
      v18 = v3[777] - v19;
    if( v8 > v18 )
    {
      MiIssuePageExtendRequest((_MI_PARTITION *)v3, v8, 2ui64, 0i64);
    }
    else
    {
LABEL_23:
      if( NumberOfBytes + 10485760 < v16 || v3[866] < 0x40000 )
        return 1i64;
      v4 = 1;
    }
  }
  if( (v7 & 0x20) == 0 )
  {
    if( v10 )
    {
      CurrentThread = (_ETHREAD *)KeGetCurrentThread();
      --*((_WORD *)CurrentThread + 243);
      ExAcquirePushLockExclusiveEx((UINT64)&qword_140C4EC58, 0i64);
      v24 = (struct _KEVENT *)v3[31];
      if( !v24->Header.SignalState )
        KePulseEvent(v24, 0);
      if( (_InterlockedExchangeAdd64((volatile signed __int64 *)&qword_140C4EC58, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
        ExfTryToWakePushLock((volatile INT64 *)&qword_140C4EC58);
      KeAbPostRelease(&qword_140C4EC58);
      KiLeaveGuardedRegionUnsafe((__int64)CurrentThread);
    }
    else
    {
      KeAcquireInStackQueuedSpinLock(v3 + 616, &LockHandle);
      v20 = (struct _KEVENT *)v3[33];
      if( !v20->Header.SignalState )
        KePulseEvent(v20, 0);
      KeReleaseInStackQueuedSpinLockFromDpcLevel(&LockHandle);
      __writecr8(LockHandle.OldIrql);
    }
    MiFreeExcessSegments(v21);
  }
  return v4;
}

Referenced by: