1 // Copyright (c) 2006-2010 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Purpose: The DProcessTracker object tracks which processes are being |
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15 // debugged. The DProcessTracker class uses a DTargetProcess object for |
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16 // each process being debugged. |
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17 // Note: Although TheDProcessTracker object is a global, it should be unique |
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18 // as only the Debug Security Server should load and use this driver. |
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19 // |
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20 // |
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21 |
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22 #include <e32def.h> |
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23 #include <e32def_private.h> |
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24 #include <e32cmn.h> |
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25 #include <e32cmn_private.h> |
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26 #include <kernel/kernel.h> |
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27 #include <kernel/kern_priv.h> |
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28 #include "nk_priv.h" |
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29 #include <rm_debug_api.h> |
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30 |
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31 #include "d_target_process.h" |
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32 #include "debug_logging.h" |
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33 #include "debug_utils.h" |
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34 |
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35 // ctor |
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36 DTargetProcess::DTargetProcess() |
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37 :iProcessName(NULL) |
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38 { |
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39 } |
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40 |
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41 // dtor |
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42 DTargetProcess::~DTargetProcess() |
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43 { |
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44 delete iProcessName; |
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45 iAgentList.ResetAndDestroy(); |
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46 } |
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47 |
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48 // Compare two DTargetProcess items. They are the same if they have the same name. |
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49 TInt DTargetProcess::Compare(const DTargetProcess& aFirst, const DTargetProcess& aSecond) |
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50 { |
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51 const TDesC& left = aFirst.iProcessName ? *aFirst.iProcessName : KNullDesC(); |
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52 const TDesC& right = aSecond.iProcessName ? *aSecond.iProcessName : KNullDesC(); |
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53 return left.Compare(right); |
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54 } |
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55 |
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56 // Set the name of the process we are tracking |
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57 TInt DTargetProcess::SetProcessName(const TDesC8& aProcessName) |
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58 { |
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59 // Argument checking |
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60 if (aProcessName.Length() < 1) |
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61 { |
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62 return KErrArgument; |
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63 } |
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64 |
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65 if (iProcessName) |
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66 return KErrNotReady; // You can only set the processname once |
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67 iProcessName = HBuf8::New(aProcessName); |
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68 if (!iProcessName) |
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69 return KErrNoMemory; |
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70 return KErrNone; |
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71 } |
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72 |
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73 // Obtain the name of the process being tracked |
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74 const TDesC& DTargetProcess::ProcessName() const |
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75 { |
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76 return iProcessName ? *iProcessName : KNullDesC(); |
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77 } |
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78 |
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79 // Returns a pointer to the DDebugAgent with aAgentId. |
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80 // If the agent is not in the list, it returns NULL. |
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81 DDebugAgent* DTargetProcess::Agent(TUint64 aAgentId) |
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82 { |
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83 for(TInt i = 0; i < iAgentList.Count(); i++) |
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84 { |
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85 if (iAgentList[i]->Id() == aAgentId) |
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86 { |
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87 return iAgentList[i]; |
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88 } |
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89 } |
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90 |
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91 // what do we return if we don't have any agents? |
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92 return NULL; |
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93 } |
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94 |
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95 // Adds aAgentId as a tracking agent for this process. |
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96 TInt DTargetProcess::AddAgent(TUint64 aAgentId) |
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97 { |
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98 DDebugAgent* agent = DDebugAgent::New(aAgentId); |
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99 LOG_MSG4("DTargetProcess::AddAgent(), agentId=%d, curr iAgentList.Count=%d, new agent=0x%08x", |
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100 I64LOW(aAgentId), iAgentList.Count(), agent ); |
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101 |
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102 if(agent == NULL) |
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103 { |
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104 LOG_MSG("DTargetProcess::AddAgent() couldn't allocate memory for DDebugAgent"); |
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105 return KErrNoMemory; |
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106 } |
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107 return iAgentList.Insert(agent,0); |
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108 } |
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109 |
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110 // Stops tracking the process with this agent |
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111 TInt DTargetProcess::RemoveAgent(TUint64 aAgentId) |
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112 { |
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113 // We need to find and then remove the agent |
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114 for(TUint i = 0; i < iAgentList.Count(); i++) |
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115 { |
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116 if (iAgentList[i]->Id() == aAgentId) |
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117 { |
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118 LOG_MSG4("DTargetProcess::RemoveAgent(), deleting agent[%d], id 0x%x, address=0x%x", |
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119 i, I64LOW(aAgentId), iAgentList[i]); |
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120 delete iAgentList[i]; |
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121 iAgentList.Remove(i); |
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122 return KErrNone; |
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123 } |
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124 } |
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125 |
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126 return KErrNotFound; |
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127 } |
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128 |
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129 // Index through the agents by position |
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130 DDebugAgent* DTargetProcess::operator[](TInt aIndex) |
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131 { |
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132 return iAgentList[aIndex]; |
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133 } |
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134 |
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135 // returns the number of agents tracking this process. |
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136 TInt DTargetProcess::AgentCount() const |
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137 { |
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138 return iAgentList.Count(); |
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139 } |
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140 |
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141 void DTargetProcess::NotifyEvent(const TDriverEventInfo& aEventInfo) |
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142 { |
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143 // Stuff the event info into all the tracking agents event queues |
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144 LOG_MSG4("DTargetProcess::NotifyEvent(): num attached agents: %d, iEventType=%d, this=0x%08x", |
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145 AgentCount(), aEventInfo.iEventType, this); |
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146 |
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147 for(TInt i = 0; i < AgentCount(); i++) |
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148 { |
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149 // Index through all the relevant debug agents |
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150 DDebugAgent* debugAgent = iAgentList[i]; |
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151 if(debugAgent != NULL) |
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152 { |
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153 debugAgent->NotifyEvent(aEventInfo); |
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154 } |
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155 } |
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156 } |
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157 |
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