/* MessageServer_Release_x64.exe sha256 7911b15c4379625eaa12ff227708aa3a033bc6ac2cf6b34283136e3a62df25f1
 * Ghidra 12.1.2 decompiler output for 0x1400bcbc0 FUN_1400bcbc0
 * Pseudocode, not original source. */

longlong FUN_1400bcbc0(uint *param_1,undefined8 param_2,undefined8 param_3,undefined8 param_4)

{
  longlong lVar1;
  int iVar2;
  uint uVar3;
  uint uVar4;
  uint uVar5;
  exception local_58 [80];
  
  FUN_1400bc8a0((int *)param_1,param_2,param_3,param_4);
  lVar1 = *(longlong *)(param_1 + 2);
  if ((lVar1 == 0) && (*(longlong *)(param_1 + 4) == 0)) {
    FUN_14006ba50(local_58,L"Null message로부터 데이터를 읽으려 했음",param_3,param_4);
                    /* WARNING: Subroutine does not return */
    _CxxThrowException(local_58,(ThrowInfo *)&DAT_1401a93e8);
  }
  uVar3 = *param_1;
  uVar5 = (int)uVar3 >> 0x1f & 7;
  if (lVar1 == 0) {
    if (*(longlong *)(param_1 + 4) == 0) {
                    /* WARNING: Subroutine does not return */
      FUN_1400d1900(0,(ulonglong)uVar5,(ulonglong)uVar3,param_4);
    }
    uVar4 = param_1[6];
  }
  else {
    uVar4 = *(uint *)(lVar1 + 0x18);
  }
  iVar2 = ((int)(uVar3 + uVar5) >> 3) + (int)param_2;
  if ((int)uVar4 < iVar2) {
    return (ulonglong)(uint3)((uint)iVar2 >> 8) << 8;
  }
  uVar3 = uVar3 + (int)param_2 * 8;
  *param_1 = uVar3;
  return CONCAT71((uint7)(uint3)(uVar3 >> 8),1);
}