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1 // Copyright (c) 1999-2009 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 // This file contains the implementation of the RSmsSocket class |
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15 // |
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16 // |
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17 |
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18 /** |
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19 @file |
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20 */ |
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21 |
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22 #include "smsustrm.h" |
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23 #include "smsumain.h" |
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24 #include <es_sock.h> |
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25 #include "smsstacklog.h" |
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26 |
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27 |
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28 /** |
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29 * Constructor |
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30 * @param aSocket representing the socket the buffer reads and writes to. |
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31 */ |
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32 RSmsSocketBuf::RSmsSocketBuf(RSocket& aSocket) |
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33 :iSocket(aSocket) |
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34 { |
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35 SetBuf(ERead|EWrite,iBuffer,iBuffer); |
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36 } // RSmsSocketBuf::RSmsSocketBuf |
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37 |
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38 |
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39 /** |
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40 * Fills the buffer's read area from the socket. |
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41 * |
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42 * @leave The function panics if the socket is not readable. |
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43 * @param aMaxLength Unused |
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44 * @return The length of the buffer |
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45 */ |
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46 TInt RSmsSocketBuf::UnderflowL(TInt) |
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47 //Leaves if the Request Status (s) is in error |
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48 //Panics if ERead==0 |
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49 // |
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50 { |
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51 LOGSMSU1("RSmsSocketBuf::UnderflowL()"); |
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52 |
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53 __ASSERT_ALWAYS(Avail(ERead)==0,SmsuPanic(KSsmuPanicStreamReadUnavailable)); |
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54 SocketWriteL(); |
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55 SetBuf(EWrite,iBuffer,iBuffer); |
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56 // |
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57 TRequestStatus s; |
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58 TSockXfrLength l; |
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59 TPtr8 ptr(iBuffer,sizeof(iBuffer)); |
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60 // iSocket.RecvOneOrMore(ptr,0,s,l); |
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61 iSocket.Recv(ptr,0,s,l); |
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62 User::WaitForRequest(s); // TODO check this |
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63 User::LeaveIfError(s.Int()); |
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64 TInt len=ptr.Length(); |
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65 SetBuf(ERead,iBuffer,iBuffer+len); |
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66 return len; |
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67 } // RSmsSocketBuf::UnderflowL |
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68 |
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69 |
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70 /** |
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71 * Empties the buffer and sets up the buffer's write area. |
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72 * |
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73 * The function panics if the socket is not writable. |
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74 */ |
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75 void RSmsSocketBuf::OverflowL() |
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76 //Panics if EWrite == 0 |
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77 { |
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78 LOGSMSU1("RSmsSocketBuf::OverflowL()"); |
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79 |
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80 __ASSERT_ALWAYS(Avail(EWrite)==0,SmsuPanic(KSsmuPanicStreamWriteUnavailable)); |
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81 SetBuf(ERead,iBuffer,iBuffer); |
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82 // |
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83 SocketWriteL(); |
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84 SetBuf(EWrite,iBuffer,iBuffer+sizeof(iBuffer)); |
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85 } // RSmsSocketBuf::OverflowL |
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86 |
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87 |
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88 /** |
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89 * Synchronises the stream buffer with the stream, leaving if any error occurs. |
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90 */ |
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91 void RSmsSocketBuf::DoSynchL() |
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92 { |
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93 LOGSMSU1("RSmsSocketBuf::DoSynchL()"); |
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94 |
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95 SocketWriteL(); |
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96 SetBuf(ERead|EWrite,iBuffer,iBuffer); |
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97 } // RSmsSocketBuf::DoSynchL |
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98 |
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99 |
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100 /** |
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101 * Writes the buffered data to the socket. |
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102 */ |
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103 void RSmsSocketBuf::SocketWriteL() |
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104 { |
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105 LOGSMSU1("RSmsSocketBuf::SocketWriteL()"); |
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106 |
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107 TInt length=Lag(EWrite); |
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108 if (length==0) |
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109 return; |
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110 // |
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111 TRequestStatus s; |
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112 iSocket.Write(TPtrC8(iBuffer,length),s); |
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113 User::WaitForRequest(s); // TODO check this |
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114 User::LeaveIfError(s.Int()); |
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115 } // RSmsSocketBuf::SocketWriteL |
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116 |
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117 |
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118 /** |
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119 * Constructor. |
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120 * |
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121 * @param aSocket RSmsSocketBuf through which to read data |
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122 * @capability None |
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123 */ |
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124 EXPORT_C RSmsSocketReadStream::RSmsSocketReadStream(RSocket& aSocket) |
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125 :RReadStream(&iBuf), |
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126 iBuf(aSocket) |
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127 { |
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128 LOGSMSU1("RSmsSocketReadStream::RSmsSocketReadStream()"); |
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129 |
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130 } // RSmsSocketReadStream::RSmsSocketReadStream |
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131 |
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132 |
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133 /** |
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134 * Constructor. |
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135 * |
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136 * @param aSocket RSmsSocketBuf through which to write data |
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137 * @capability None |
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138 */ |
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139 EXPORT_C RSmsSocketWriteStream::RSmsSocketWriteStream(RSocket& aSocket) |
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140 :RWriteStream(&iBuf), |
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141 iBuf(aSocket) |
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142 { |
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143 LOGSMSU1("RSmsSocketWriteStream::RSmsSocketWriteStream()"); |
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144 |
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145 } // RSmsSocketWriteStream::RSmsSocketWriteStream |
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146 |