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

   1 //===-- MICmdMgrSetCmdDeleteCallback.cpp ------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 // In-house headers:
  11 #include "MICmdMgrSetCmdDeleteCallback.h"
  12
  13 namespace CMICmdMgrSetCmdDeleteCallback {
  14
  15 //++
  16 //------------------------------------------------------------------------------------
  17 // Details: CSetClients constructor.
  18 // Type:    Method.
  19 // Args:    None.
  20 // Return:  None.
  21 // Throws:  None.
  22 //--
  23 CSetClients::CSetClients() : m_bClientUnregistered(false) {}
  24
  25 //++
  26 //------------------------------------------------------------------------------------
  27 // Details: CSetClients destructor.
  28 // Type:    Method.
  29 // Args:    None.
  30 // Return:  None.
  31 // Throws:  None.
  32 //--
  33 CSetClients::~CSetClients() {}
  34
  35 //++
  36 //------------------------------------------------------------------------------------
  37 // Details: Register an object to be called when a command object is deleted.
  38 // Type:    Method.
  39 // Args:    vObject - (R) A new interested client.
  40 // Return:  MIstatus::success - Functional succeeded.
  41 //          MIstatus::failure - Functional failed.
  42 // Throws:  None.
  43 //--
  44 bool CSetClients::Register(ICallback &vObject) {
  45   insert(&vObject);
  46
  47   return MIstatus::success;
  48 }
  49
  50 //++
  51 //------------------------------------------------------------------------------------
  52 // Details: Unregister an object from being called when a command object is
  53 // deleted.
  54 // Type:    Method.
  55 // Args:    vObject - (R) The was interested client.
  56 // Return:  MIstatus::success - Functional succeeded.
  57 //          MIstatus::failure - Functional failed.
  58 // Throws:  None.
  59 //--
  60 bool CSetClients::Unregister(ICallback &vObject) {
  61   m_bClientUnregistered = true;
  62   erase(&vObject);
  63
  64   return MIstatus::success;
  65 }
  66
  67 //++
  68 //------------------------------------------------------------------------------------
  69 // Details: Iterate all interested clients and tell them a command is being
  70 // deleted.
  71 // Type:    Method.
  72 // Args:    vCmd    - (RW) The command to be deleted.
  73 // Return:  MIstatus::success - Functional succeeded.
  74 //          MIstatus::failure - Functional failed.
  75 // Throws:  None.
  76 //--
  77 void CSetClients::Delete(SMICmdData &vCmd) {
  78   m_bClientUnregistered = false; // Reset
  79   iterator it = begin();
  80   while (it != end()) {
  81     ICallback *pObj = *it;
  82     pObj->Delete(vCmd);
  83
  84     if (m_bClientUnregistered) {
  85       m_bClientUnregistered = false; // Reset
  86       it = begin();
  87     } else
  88       // Next
  89       ++it;
  90   }
  91 }
  92
  93 } // namespace CMICmdMgrSetCmdDeleteCallback