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1 // Copyright (c) 1997-2009 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 "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 // Buffer Manager for Protocols(ASync alloc) |
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15 |
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16 /** |
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17 @file |
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18 |
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19 Buffer Manager for Protocols(ASync alloc) |
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20 |
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21 @internalComponent |
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22 */ |
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23 |
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24 #include <es_mbuf.h> |
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25 #include <cflog.h> |
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26 #include <comms-infras/commsbufpond.h> |
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27 #include <comms-infras/commsbufpondop.h> |
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28 #include "commsbufasyncreqinternal.h" |
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29 // |
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30 // ASYNC ALLOCATOR SUPPORT |
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31 // |
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32 /** |
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33 Constructor inisialiser. |
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34 */ |
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35 EXPORT_C RMBufAsyncRequest::RMBufAsyncRequest() |
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36 : RCommsBufAsyncRequest() |
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37 { |
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38 } |
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39 |
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40 /** |
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41 Destructor. |
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42 */ |
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43 EXPORT_C RMBufAsyncRequest::~RMBufAsyncRequest() |
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44 { |
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45 RCommsBufAsyncRequest::Close(); |
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46 } |
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47 |
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48 /** |
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49 Allocates memory for a MBuf Chain |
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50 - refer RMBufChain::AllocL notes regarding the deliberate decision not to provide an overloaded min/max mbuf size variant |
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51 @param aChain The chain |
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52 @param aLenth The length of the chain |
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53 @param aStatus KErrNone if successful. |
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54 */ |
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55 EXPORT_C void RMBufAsyncRequest::Alloc(RMBufChain& aChain, TInt aLength, TRequestStatus& aStatus) |
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56 { |
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57 TInt err = KErrNone; |
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58 if(iAsyncReqImpl == NULL) |
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59 { |
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60 TCommsBufAllocator allocator = TCommsBufPondTLSOp::Get().Allocator(); |
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61 err = RCommsBufAsyncRequest::Open(allocator); |
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62 } |
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63 |
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64 if(err != KErrNone) |
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65 { |
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66 TRequestStatus* reqStatusPtr = &aStatus; |
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67 User::RequestComplete(reqStatusPtr, err); |
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68 } |
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69 else |
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70 { |
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71 RCommsBufAsyncRequest::Alloc(aChain, aLength, aStatus); |
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72 if(aStatus.Int() == KErrNone) |
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73 { |
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74 // Our allocation is success. Close the implementation. |
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75 RCommsBufAsyncRequest::Close(); |
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76 } |
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77 } |
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78 } |
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79 |
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80 /** |
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81 Cancels outstanding request. |
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82 */ |
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83 EXPORT_C void RMBufAsyncRequest::Cancel() |
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84 { |
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85 RCommsBufAsyncRequest::Cancel(); |
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86 } |
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87 |
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88 /** |
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89 Completes the request. |
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90 @param aCode The completion code (status). |
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91 */ |
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92 EXPORT_C void RMBufAsyncRequest::Complete(TInt aCode) |
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93 { |
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94 RCommsBufAsyncRequest::Complete(aCode); |
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95 } |
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96 /** |
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97 Copy constructor |
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98 */ |
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99 EXPORT_C RMBufAsyncRequest::RMBufAsyncRequest(const RMBufAsyncRequest& /* aObj */) |
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100 { |
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101 // Note: We do not copy anything here. Note that we are deleting the implementation in |
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102 // the d'tor. So we shouldn't allow to do a copy or assignment of our object. |
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103 } |
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104 |
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105 /** |
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106 Assignment operator. |
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107 */ |
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108 EXPORT_C RMBufAsyncRequest& RMBufAsyncRequest::operator=(const RMBufAsyncRequest& /* aRhs */) |
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109 { |
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110 // See note on the copy c'tor. |
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111 return *this; |
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112 } |
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113 |
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114 EXPORT_C TInt* RMBufAsyncRequest::Length() |
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115 { |
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116 if(iAsyncReqImpl) |
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117 { |
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118 return &iAsyncReqImpl->iSize; |
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119 } |
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120 return NULL; |
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121 } |
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122 |
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123 EXPORT_C RMBufQ* RMBufAsyncRequest::MBufQ() |
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124 { |
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125 if(iAsyncReqImpl) |
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126 { |
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127 return static_cast<RMBufQ*>(&iAsyncReqImpl->iBufQ); |
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128 } |
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129 return NULL; |
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130 } |
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131 |
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132 EXPORT_C RMBufChain* RMBufAsyncRequest::MBufChain() |
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133 { |
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134 if(iAsyncReqImpl) |
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135 { |
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136 return static_cast<RMBufChain*>(iAsyncReqImpl->iChain); |
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137 } |
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138 return NULL; |
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139 } |
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140 |
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141 EXPORT_C TRequestStatus* RMBufAsyncRequest::RequestStatusPtr() |
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142 { |
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143 if(iAsyncReqImpl) |
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144 { |
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145 return iAsyncReqImpl->iStatusPtr; |
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146 } |
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147 return NULL; |
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148 } |
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149 |
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150 EXPORT_C RThread* RMBufAsyncRequest::Thread() |
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151 { |
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152 if(iAsyncReqImpl) |
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153 { |
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154 return &iAsyncReqImpl->iThread; |
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155 } |
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156 return NULL; |
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157 } |
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158 |
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159 EXPORT_C TDblQueLink* RMBufAsyncRequest::DblQueLink() |
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160 { |
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161 if(iAsyncReqImpl) |
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162 { |
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163 return &iAsyncReqImpl->iLink; |
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164 } |
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165 return NULL; |
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166 } |
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167 |
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168 // ----------------------------------------------------------------------- |