/* DBCServer_Release_x64.exe sha256 d9e4fccdf3482e50247686d4452c0b13c75a53efc4bd7320668eece8d1ce828c
 * Ghidra 12.1.2 decompiler output for 0x1400a77d0 FUN_1400a77d0
 * Pseudocode, not original source. */

undefined8 FUN_1400a77d0(undefined8 *param_1,void *param_2)

{
  int iVar1;
  undefined1 *puVar2;
  int iVar3;
  uint uVar4;
  undefined2 local_res8;
  
  EnterCriticalSection((LPCRITICAL_SECTION)(param_1 + 4));
  if (*(int *)((longlong)param_1 + 0x14) == 0) {
    LeaveCriticalSection((LPCRITICAL_SECTION)(param_1 + 4));
    return 0;
  }
  iVar3 = *(int *)(param_1 + 1);
  iVar1 = *(int *)((longlong)param_1 + 0xc);
  puVar2 = (undefined1 *)*param_1;
  if (iVar1 == iVar3 + -1) {
    local_res8 = CONCAT11(*puVar2,puVar2[iVar1]);
  }
  else {
    local_res8 = *(ushort *)(puVar2 + iVar1);
  }
  iVar1 = *(int *)((longlong)param_1 + 0xc);
  uVar4 = (uint)local_res8;
  if (iVar3 < (int)((uint)local_res8 + iVar1)) {
    iVar3 = iVar3 - iVar1;
    *(int *)((longlong)param_1 + 0x4c) = iVar3;
    *(uint *)(param_1 + 10) = uVar4 - iVar3;
    memcpy(param_2,puVar2 + iVar1,(longlong)iVar3);
    memcpy((void *)((longlong)*(int *)((longlong)param_1 + 0x4c) + (longlong)param_2),
           (void *)*param_1,(longlong)*(int *)(param_1 + 10));
    *(undefined4 *)((longlong)param_1 + 0xc) = *(undefined4 *)(param_1 + 10);
  }
  else {
    memcpy(param_2,puVar2 + iVar1,(ulonglong)local_res8);
    *(int *)((longlong)param_1 + 0xc) = *(int *)((longlong)param_1 + 0xc) + uVar4;
    iVar3 = *(int *)((longlong)param_1 + 0xc);
    if (iVar3 == *(int *)(param_1 + 1)) {
      iVar3 = 0;
    }
    *(int *)((longlong)param_1 + 0xc) = iVar3;
  }
  *(int *)((longlong)param_1 + 0x14) = *(int *)((longlong)param_1 + 0x14) - uVar4;
  *(int *)(param_1 + 3) = *(int *)(param_1 + 3) + -1;
  LeaveCriticalSection((LPCRITICAL_SECTION)(param_1 + 4));
  return 1;
}