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79
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1
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80
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2 //This implementation will change quite a bit once the transaction system is working
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3 //and I've finalized how File I/O will fit into that. This is just a very basic
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4 //implementation to allow the compiler to be self-hosting.
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5
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6 Foreign C:libc
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7 {
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8 open[name(Array,Raw Pointer),flags(Int32,Naked):filedes(Int32,Naked)]
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9 close[filedes(Int32,Naked):status(Int32,Naked)]
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10 fsync[filedes(Int32,Naked):status(Int32,Naked)]
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11 fstat[filedes(Int32,Naked),buf(Stat,Raw Pointer):err(Int32,Naked),buf]
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12 }
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79
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13
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14 Blueprint Stat
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15 {
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80
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16 Device(UInt64,Naked)
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17 Inode(UInt64,Naked)
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18 Link Count(UInt64,Naked)
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19 Mode(UInt32,Naked)
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20 Owner ID(UInt32,Naked)
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21 Group ID(UInt32,Naked)
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22 Pad0(Int32,Naked)
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23 RDevice(UInt64,Naked)
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24 Size(Int64,Naked)
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25 Block Size(Int64,Naked)
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26 Block Count(Int64,Naked)
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27 Access Time(Int64,Naked)
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28 Access Time Nano(UInt64,Naked)
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29 Mod Time(Int64,Naked)
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30 Mod Time Nano(UInt64,Naked)
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31 Status Time(Int64,Naked)
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32 Status Time Nano(UInt64,Naked)
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33 Unused1(Int64,Naked)
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34 Unused2(Int64,Naked)
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35 Unused3(Int64,Naked)
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36 }
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37
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38 Stat[fd:out]
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39 {
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40 err,out <- fstat[fd, Build[Stat()]]
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79
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41 }
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42
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43 Blueprint File
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44 {
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45 Name
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46 }
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47
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48 Blueprint File Read
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49 {
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50 Name
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51 Descriptor(Int32,Naked)
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52 Info
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53 }
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54
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55 Blueprint File Write
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56 {
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57 Name
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58 Descriptor(Int32,Naked)
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59 Info
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60 }
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61
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62 Blueprint File ReadWrite
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63 {
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64 Name
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65 Read Offset(Int64,Naked)
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66 Descriptor(Int32,Naked)
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67 Info
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68 }
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69
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70 File[name:out]
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71 {
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72 out <- [Build[File()]]Name <<[name]
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73 }
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74
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75
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76 Open@File[file,mode:out,error]
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77 {
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78 If[[mode]=["r"]]
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79 {
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80
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80 imode <- 0i32
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79
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81 type <- File Read()
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82 out <- Val[ofile]
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83 }{
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84 If[[mode]=["w"]]
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85 {
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80
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86 imode <- 65i32
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79
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87 type <- File Write()
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88 out <- Val[ofile]
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89 }{
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90 ,error <- If[[mode]=["rw"]]
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91 {
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80
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92 imode <- 66i32
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79
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93 type <- File ReadWrite()
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94 out <- [ofile]Read Offset <<[0i64]
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95 }
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96 }
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97 }
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98 fd <- open[[file]Name >>]
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99 error <- If[[fd]=[-1i32]] {}
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100 {
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80
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101 ofile <- [[[Build[type]
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79
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102 ]Name <<[ [file]Name >> ]
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103 ]Descriptor <<[fd]
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104 ]Info <<[Stat[fd]]
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105 }
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106 }
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107
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108 Read@File[file,bytes:data,outfile,error]
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109 {
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110 ,error <- [file]Open["r"]
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111 {
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112 data,outfile,error <- [~]Read[bytes]
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113 }
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114 }
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80
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115 /*
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79
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116 Append@File[file,data:out,error]
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117 {
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118 ,error <- [file]Open["w"]
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119 {
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120 out,error <- [~]Append[data]
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121 }
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80
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122 }*/
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79
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123
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124 String@File[file:out,error]
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125 {
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126 ,error <- [file]Open["w"]
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127 {
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128 out,error <- String[~]
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129 }
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130 }
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131
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132 Read@File Read[file,inbytes(Int32):data,outfile,error]
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133 {
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80
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134 readbytes, mdata <- read[[file]Descriptor >>, [Array[]]Set[inbytes, 0u8], Int64[inbytes]]
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135 error <- If[[readbytes]<[0i64]] {}
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136 {
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137 outfile <- file
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138 data <- [mdata]Length <<[ Trunc Int32[readbytes] ]
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139 }
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140 /*
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141 //Skip buffering for now. Buffering approach may need to change later anyway
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79
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142 buflen <- [[file]Buffer >>]Length
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143 If[buflen]
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144 {
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145 If[[inbytes]=[buflen]]
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146 {
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147 data <- [file]Buffer >>
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148 outfile <- [file]Buffer <<[Array[]]
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149 }{
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150 If[[inbytes]<[buflen]]
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151 {
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152
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153 }{
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154
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155 }
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156 }
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157 }{
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158 readbytes, mdata <- read[[file]Descriptor >>, [Array[]]Set[inbytes, 0u8], Int64[inbytes]]
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159 error <- If[[readbytes]<[0i64]] {}
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160 {
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161 outfile <- file
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162 data <- [mdata]Length <<[ Trunc Int32[readbytes] ]
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163 }
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80
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164 } */
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165 }
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166
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167 Length@File Read[file:out]
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168 {
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169 out <- Trunc Int32[[[file]Info >>]Size >>]
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79
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170 }
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171
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80
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172 Close@File Read[file:out]
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173 {
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174 close[[file]Descriptor >>]
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175 out <- File[[file]Name >>]
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176 }
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177
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178
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