contrib/llvm/tools/lldb/tools/lldb-mi/MICmdMgrSetCmdDeleteCallback.cpp

   1 //===-- MICmdMgrSetCmdDeleteCallback.cpp ------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // In-house headers:
  10 #include "MICmdMgrSetCmdDeleteCallback.h"
  11
  12 namespace CMICmdMgrSetCmdDeleteCallback {
  13
  14 //++
  15 // Details: CSetClients constructor.
  16 // Type:    Method.
  17 // Args:    None.
  18 // Return:  None.
  19 // Throws:  None.
  20 //--
  21 CSetClients::CSetClients() : m_bClientUnregistered(false) {}
  22
  23 //++
  24 // Details: CSetClients destructor.
  25 // Type:    Method.
  26 // Args:    None.
  27 // Return:  None.
  28 // Throws:  None.
  29 //--
  30 CSetClients::~CSetClients() {}
  31
  32 //++
  33 // Details: Register an object to be called when a command object is deleted.
  34 // Type:    Method.
  35 // Args:    vObject - (R) A new interested client.
  36 // Return:  MIstatus::success - Functional succeeded.
  37 //          MIstatus::failure - Functional failed.
  38 // Throws:  None.
  39 //--
  40 bool CSetClients::Register(ICallback &vObject) {
  41   insert(&vObject);
  42
  43   return MIstatus::success;
  44 }
  45
  46 //++
  47 // Details: Unregister an object from being called when a command object is
  48 // deleted.
  49 // Type:    Method.
  50 // Args:    vObject - (R) The was interested client.
  51 // Return:  MIstatus::success - Functional succeeded.
  52 //          MIstatus::failure - Functional failed.
  53 // Throws:  None.
  54 //--
  55 bool CSetClients::Unregister(ICallback &vObject) {
  56   m_bClientUnregistered = true;
  57   erase(&vObject);
  58
  59   return MIstatus::success;
  60 }
  61
  62 //++
  63 // Details: Iterate all interested clients and tell them a command is being
  64 // deleted.
  65 // Type:    Method.
  66 // Args:    vCmd    - (RW) The command to be deleted.
  67 // Return:  MIstatus::success - Functional succeeded.
  68 //          MIstatus::failure - Functional failed.
  69 // Throws:  None.
  70 //--
  71 void CSetClients::Delete(SMICmdData &vCmd) {
  72   m_bClientUnregistered = false; // Reset
  73   iterator it = begin();
  74   while (it != end()) {
  75     ICallback *pObj = *it;
  76     pObj->Delete(vCmd);
  77
  78     if (m_bClientUnregistered) {
  79       m_bClientUnregistered = false; // Reset
  80       it = begin();
  81     } else
  82       // Next
  83       ++it;
  84   }
  85 }
  86
  87 } // namespace CMICmdMgrSetCmdDeleteCallback