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annotate modules/os.tp @ 304:dcb495cf2b97

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Add fd method to file objects for accessing file descriptor
author Michael Pavone <pavone@retrodev.com>
date Sat, 26 Jul 2014 15:01:38 -0700
parents d1dc2d70bdfd
children f987bb2a1911
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
294
d1dc2d70bdfd Move OS module out of backend Javascript into a proper module file. Add normal bytearray to bytearray module. Add read:to method to os module for reading into a bytearray.
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parents:
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1 {
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2 _constant <- macro: :name {
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3 quote: (llMessage: name withVars: {
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4 uintret <- obj_int32 ptr
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5 } andCode: {
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6 uintret <- make_object: (addr_of: obj_int32_meta) NULL 0
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7 uintret num!: name
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8 uintret
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9 })
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10 }
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11 #{
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12 includeSystemHeader: "sys/stat.h"
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13 includeSystemHeader: "fcntl.h"
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14 includeSystemHeader: "stdlib.h"
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15 includeSystemHeader: "time.h"
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16 includeSystemHeader: "unistd.h"
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17
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18 llMessage: write withVars: {
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19 str <- string ptr
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20 intret <- obj_int32 ptr
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21 filedes <- obj_int32 ptr
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22 } andCode: :filedes str {
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23 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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24 intret num!: (write: (filedes num) (str data) (str bytes))
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25 intret
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26 }
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27
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28 llMessage: read withVars: {
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29 str <- string ptr
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30 size <- obj_int32 ptr
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31 filedes <- obj_int32 ptr
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32 } andCode: :filedes size {
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33 str <- make_object: (addr_of: string_meta) NULL 0
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34 str data!: (GC_MALLOC_ATOMIC: (size num) + 1)
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35 str bytes!: (read: (filedes num) (str data) (size num))
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36 if: (str bytes) < 0 {
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37 str bytes!: 0
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38 }
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39 str len!: (str bytes)
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40 (str data) set: (str bytes) 0
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41 str
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42 }
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43
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44 llMessage: readFrom:to withVars: {
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45 buffer <- object ptr
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46 bufOpaque <- cpointer ptr
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47 size <- obj_int32 ptr
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48 filedes <- obj_int32 ptr
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49 intret <- obj_int32 ptr
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50 } andCode: :filedes buffer {
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51 bufOpaque <- (mcall: _buf_ptr 1 buffer) castTo: (cpointer ptr)
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52 size <- (mcall: length 1 buffer) castTo: (obj_int32 ptr)
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53 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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54 intret num!: (read: (filedes num) (bufOpaque val) (size num))
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55 intret
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56 }
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57
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58 open <- :filename flags {
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59 open: filename flags createPerm: 0b110110110
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60 }
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61
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62 llMessage: open:createPerm withVars: {
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63 filename <- string ptr
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64 flags <- obj_int32 ptr
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65 perm <- obj_int32 ptr
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66 filedes <- obj_int32 ptr
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67 } andCode: :filename flags :perm {
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68 filedes <- make_object: (addr_of: obj_int32_meta) NULL 0
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69 filedes num!: (open: (filename data) (flags num) (perm num))
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70 filedes
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71 }
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72
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73 llMessage: close withVars: {
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74 filedes <- obj_int32 ptr
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75 intret <- obj_int32 ptr
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76 } andCode: :filedes {
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77 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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78 intret num!: (close: (filedes num))
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79 intret
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80 }
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81
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82 _constant: O_RDONLY
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83 _constant: O_WRONLY
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84 _constant: O_RDWR
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85 _constant: O_CREAT
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86 _constant: O_APPEND
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87 _constant: O_TRUNC
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88
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89 llMessage: rand withVars: {
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90 intret <- obj_int32 ptr
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91 } andCode: {
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92 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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93 intret num!: (rand: )
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94 intret
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95 }
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96
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97 llMessage: srand withVars: {
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98 oseed <- object ptr
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99 seed <- obj_int32 ptr
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100 } andCode: :oseed {
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101 seed <- (mcall: i32 1 oseed) castTo: (obj_int32 ptr)
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102 srand: (seed num)
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103 seed
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104 }
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105
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106 llMessage: time withVars: {
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107 intret64 <- obj_int64 ptr
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108 } andCode: {
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109 intret64 <- make_object: (addr_of: obj_int64_meta) NULL 0
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110 intret64 num!: (time: NULL)
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111 intret64
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112 }
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113
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114 llMessage: sleep withVars: {
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115 osecs <- object ptr
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116 secs <- obj_int32 ptr
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117 intret <- obj_int32 ptr
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118 } andCode: :osecs {
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119 secs <- (mcall: i32 1 osecs) castTo: (obj_int32 ptr)
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120 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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121 intret num!: (sleep: (secs num))
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122 intret
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123 }
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124 }
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125 }