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1 // Copyright (c) 1995-2009 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 // |
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15 |
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16 #ifdef __LINUX__ |
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17 #include <unistd.h> |
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18 #else // Windows specific |
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19 #include <io.h> |
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20 #endif |
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21 #include <fcntl.h> |
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22 #include <sys/types.h> |
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23 #include <sys/stat.h> |
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24 #include <stdio.h> |
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25 #include <stdlib.h> |
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26 #include <errno.h> |
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27 |
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28 #include "h_utl.h" |
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29 |
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30 TInt HFile::Open(const TText * const aFileName, TInt32 * const aFileHandle) |
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31 { |
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32 #ifdef __LINUX__ |
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33 TInt32 hFile = open((const char *)aFileName, O_RDONLY ); |
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34 #else |
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35 TInt32 hFile = _open((const char *)aFileName, _O_RDONLY | _O_BINARY); |
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36 #endif |
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37 |
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38 if (hFile == -1) |
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39 { |
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40 switch (errno) |
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41 { |
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42 case EACCES: |
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43 Print(EError,"Can't open file %s - access violation.\n",aFileName); |
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44 break; |
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45 case EEXIST: |
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46 Print(EAlways,"Tried to create existing file %s\n",aFileName); |
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47 break; |
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48 case EINVAL: |
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49 Print(EError,"Can't open file %s - invalid open flags.\n",aFileName); |
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50 break; |
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51 case EMFILE: |
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52 Print(EError,"Can't open file %s - too many open files.\n",aFileName); |
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53 break; |
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54 case ENOENT: |
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55 Print(EError,"Can't open file %s - file or path not found.\n",aFileName); |
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56 break; |
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57 default: |
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58 Print(EError,"Can't open file %s, error %d (decimal).\n",aFileName,errno); |
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59 break; |
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60 } |
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61 return errno; |
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62 } |
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63 *aFileHandle = hFile; |
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64 return 0; |
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65 } |
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66 |
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67 /******************************************************************************/ |
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68 TBool HFile::Read(const TInt32 aFileHandle, TAny * const aBuffer, const TUint32 aCount) |
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69 { |
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70 TInt32 bytesRead = _read(aFileHandle, aBuffer, aCount); |
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71 if (bytesRead != (TInt32)aCount) |
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72 return EFalse; |
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73 else |
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74 return ETrue; |
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75 } |
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76 |
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77 /******************************************************************************/ |
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78 TBool HFile::Seek(const TInt32 aFileHandle, const TUint32 aOffset) |
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79 { |
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80 TInt32 newPos = _lseek(aFileHandle, aOffset, SEEK_SET); |
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81 if (newPos == -1) |
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82 return(EFalse); |
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83 else |
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84 return ETrue; |
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85 } |
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86 |
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87 /******************************************************************************/ |
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88 TUint32 HFile::GetPos(const TInt32 aFileHandle) |
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89 { |
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90 TUint32 pos = _lseek(aFileHandle, 0, SEEK_CUR); |
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91 return pos; |
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92 } |
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93 |
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94 /******************************************************************************/ |
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95 TUint32 HFile::GetLength(TText *aName) |
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96 { |
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97 TInt32 handle; |
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98 if (HFile::Open(aName, &handle)==0) |
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99 { |
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100 TUint32 size = _filelength(handle); |
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101 HFile::Close(handle); |
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102 return size; |
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103 } |
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104 else |
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105 return 0; |
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106 } |
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107 |
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108 /******************************************************************************/ |
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109 TUint32 HFile::GetLength(const TInt32 aFileHandle) |
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110 { |
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111 |
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112 TUint32 size = _filelength(aFileHandle); |
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113 return size; |
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114 } |
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115 |
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116 |
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117 /******************************************************************************/ |
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118 void HFile::Close(const TInt32 aFileHandle) |
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119 { |
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120 _close(aFileHandle); |
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121 } |
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122 |
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123 |
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124 /******************************************************************************/ |
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125 TUint32 HFile::Read(TText *aName, TAny *someMem) |
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126 { |
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127 TInt32 handle; |
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128 if (HFile::Open(aName, &handle)==0) |
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129 { |
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130 TUint32 size = HFile::GetLength(handle); |
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131 if (HFile::Read(handle, someMem, size)) |
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132 { |
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133 HFile::Close(handle); |
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134 return size; |
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135 } |
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136 else |
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137 { |
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138 HFile::Close(handle); |
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139 return 0; |
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140 } |
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141 } |
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142 else |
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143 return 0; |
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144 } |
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145 |
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146 |
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147 /******************************************************************************/ |