/* MessageServer_Release_x64.exe sha256 7911b15c4379625eaa12ff227708aa3a033bc6ac2cf6b34283136e3a62df25f1
 * Ghidra 12.1.2 decompiler output for 0x1400ac2e0 FUN_1400ac2e0
 * Pseudocode, not original source. */

void FUN_1400ac2e0(longlong param_1,int param_2,undefined8 param_3,undefined8 param_4)

{
  longlong *plVar1;
  LPVOID pvVar2;
  int iVar3;
  longlong lVar4;
  longlong lVar5;
  exception local_58 [80];
  
  if (param_2 < 0) {
                    /* WARNING: Subroutine does not return */
    FUN_14006be00();
  }
  iVar3 = *(int *)(param_1 + 0x18);
  if (param_2 != iVar3) {
    if (*(int *)(param_1 + 0x1c) < param_2) {
      iVar3 = FUN_1400a06f0(param_1,param_2);
      plVar1 = *(longlong **)(param_1 + 8);
      lVar4 = (longlong)iVar3;
      if (*(int *)(param_1 + 0x1c) == 0) {
        if (plVar1 == (longlong *)0x0) {
          lVar4 = FUN_14006cbf0(lVar4 * 0x48);
        }
        else {
          lVar4 = (**(code **)(*plVar1 + 8))(plVar1,lVar4 * 0x48);
        }
        *(longlong *)(param_1 + 0x10) = lVar4;
        FUN_1400a2d50(lVar4,(longlong)param_2);
      }
      else {
        pvVar2 = *(LPVOID *)(param_1 + 0x10);
        if (plVar1 == (longlong *)0x0) {
          lVar4 = FUN_14006cbf0(lVar4 * 0x48);
        }
        else {
          lVar4 = (**(code **)(*plVar1 + 8))(plVar1,lVar4 * 0x48);
        }
        lVar5 = (longlong)*(int *)(param_1 + 0x18);
        FUN_1400a2df0(lVar4,(longlong)pvVar2,lVar5);
        FUN_1400a2d50(lVar4 + (longlong)*(int *)(param_1 + 0x18) * 0x48,
                      (longlong)(param_2 - *(int *)(param_1 + 0x18)));
        if (lVar4 == 0) {
          FUN_14006ba50(local_58,L"Memory allocation failure!",lVar5,param_4);
                    /* WARNING: Subroutine does not return */
          _CxxThrowException(local_58,(ThrowInfo *)&DAT_1401a93e8);
        }
        FUN_1400a3c10((longlong)pvVar2,(longlong)*(int *)(param_1 + 0x18));
        plVar1 = *(longlong **)(param_1 + 8);
        if (plVar1 == (longlong *)0x0) {
          FUN_14006cc60(pvVar2);
        }
        else {
          (**(code **)(*plVar1 + 0x18))(plVar1,pvVar2);
        }
        *(longlong *)(param_1 + 0x10) = lVar4;
      }
      *(int *)(param_1 + 0x1c) = iVar3;
    }
    else if (iVar3 - param_2 < 1) {
      if (0 < param_2 - iVar3) {
        FUN_1400a2d50(*(longlong *)(param_1 + 0x10) + (longlong)iVar3 * 0x48,
                      (longlong)(param_2 - iVar3));
      }
    }
    else {
      FUN_1400a3c10(*(longlong *)(param_1 + 0x10) + (longlong)param_2 * 0x48,
                    (longlong)(iVar3 - param_2));
    }
    *(int *)(param_1 + 0x18) = param_2;
  }
  return;
}