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 //++
  11 // File:                MICmdMgrSetCmdDeleteCallback.cpp
  12 //
  13 // Overview:    CSetClients implementation.
  14 //
  15 // Environment: Compilers:      Visual C++ 12.
  16 //                                                      gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
  17 //                              Libraries:      See MIReadmetxt.
  18 //
  19 // Copyright:   None.
  20 //--
  21
  22 // In-house headers:
  23 #include "MICmdMgrSetCmdDeleteCallback.h"
  24
  25 namespace CMICmdMgrSetCmdDeleteCallback
  26 {
  27
  28 //++ ------------------------------------------------------------------------------------
  29 // Details:     CSetClients constructor.
  30 // Type:        Method.
  31 // Args:        None.
  32 // Return:      None.
  33 // Throws:      None.
  34 //--
  35 CSetClients::CSetClients( void )
  36 :       m_bClientUnregistered( false )
  37 {
  38 }
  39
  40 //++ ------------------------------------------------------------------------------------
  41 // Details:     CSetClients destructor.
  42 // Type:        Method.
  43 // Args:        None.
  44 // Return:      None.
  45 // Throws:      None.
  46 //--
  47 CSetClients::~CSetClients( void )
  48 {
  49 }
  50
  51 //++ ------------------------------------------------------------------------------------
  52 // Details:     Register an object to be called when a command object is deleted.
  53 // Type:        Method.
  54 // Args:        vObject - (R) A new interested client.
  55 // Return:      MIstatus::success - Functional succeeded.
  56 //                      MIstatus::failure - Functional failed.
  57 // Throws:      None.
  58 //--
  59 bool CSetClients::Register( ICallback & vObject )
  60 {
  61         insert( &vObject );
  62
  63         return MIstatus::success;
  64 }
  65
  66 //++ ------------------------------------------------------------------------------------
  67 // Details:     Unregister an object from being called when a command object is deleted.
  68 // Type:        Method.
  69 // Args:        vObject - (R) The was interested client.
  70 // Return:      MIstatus::success - Functional succeeded.
  71 //                      MIstatus::failure - Functional failed.
  72 // Throws:      None.
  73 //--
  74 bool CSetClients::Unregister( ICallback & vObject )
  75 {
  76         m_bClientUnregistered = true;
  77         erase( &vObject );
  78
  79         return MIstatus::success;
  80 }
  81
  82 //++ ------------------------------------------------------------------------------------
  83 // Details:     Iterate all interested clients and tell them a command is being deleted.
  84 // Type:        Method.
  85 // Args:        vCmd    - (RW) The command to be deleted.
  86 // Return:      MIstatus::success - Functional succeeded.
  87 //                      MIstatus::failure - Functional failed.
  88 // Throws:      None.
  89 //--
  90 void CSetClients::Delete( SMICmdData & vCmd )
  91 {
  92         m_bClientUnregistered = false;  // Reset
  93         iterator it = begin();
  94         while( it != end() )
  95         {
  96                 ICallback * pObj = *it;
  97                 pObj->Delete( vCmd );
  98
  99                 if( m_bClientUnregistered )
 100                 {
 101                         m_bClientUnregistered = false;  // Reset
 102                         it = begin();
 103                 }
 104                 else
 105                         // Next
 106                         ++it;
 107         }
 108 }
 109
 110 } // namespace CMICmdMgrSetCmdDeleteCallback