1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Mu - 088file.mu</title>
<meta name="Generator" content="Vim/8.0">
<meta name="plugin-version" content="vim7.4_v2">
<meta name="syntax" content="none">
<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
<meta name="colorscheme" content="minimal">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; }
body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
a { color:#eeeeee; text-decoration: none; }
a:hover { text-decoration: underline; }
* { font-size: 12pt; font-size: 1em; }
.muControl { color: #c0a020; }
.muRecipe { color: #ff8700; }
.LineNr { color: #444444; }
.Delimiter { color: #800080; }
.Constant { color: #00a0a0; }
.Special { color: #c00000; }
.Comment { color: #9090ff; }
.Comment a { color:#0000ee; text-decoration:underline; }
.muData { color: #ffff00; }
-->
</style>
<script type='text/javascript'>
<!--
/* function to open any folds containing a jumped-to line before jumping to it */
function JumpToLine()
{
var lineNum;
lineNum = window.location.hash;
lineNum = lineNum.substr(1); /* strip off '#' */
if (lineNum.indexOf('L') == -1) {
lineNum = 'L'+lineNum;
}
lineElem = document.getElementById(lineNum);
/* Always jump to new location even if the line was hidden inside a fold, or
* we corrected the raw number to a line ID.
*/
if (lineElem) {
lineElem.scrollIntoView(true);
}
return true;
}
if ('onhashchange' in window) {
window.onhashchange = JumpToLine;
}
-->
</script>
</head>
<body onload='JumpToLine();'>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Comment"># Wrappers around file system primitives that take a 'resources' object and</span>
<span id="L2" class="LineNr"> 2 </span><span class="Comment"># are thus easier to test.</span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span>
<span id="L4" class="LineNr"> 4 </span><span class="Comment"># - start-reading - asynchronously open a file, returning a channel source for</span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment"># receiving the results</span>
<span id="L6" class="LineNr"> 6 </span><span class="Comment"># - start-writing - asynchronously open a file, returning a channel sink for</span>
<span id="L7" class="LineNr"> 7 </span><span class="Comment"># the data to write</span>
<span id="L8" class="LineNr"> 8 </span><span class="Comment"># - slurp - synchronously read from a file</span>
<span id="L9" class="LineNr"> 9 </span><span class="Comment"># - dump - synchronously write to a file</span>
<span id="L10" class="LineNr"> 10 </span>
<span id="L11" class="LineNr"> 11 </span><span class="muData">container</span> <a href='088file.mu.html#L11'>resources</a> [
<span id="L12" class="LineNr"> 12 </span> lock:bool
<span id="L13" class="LineNr"> 13 </span> data:&:@:<a href='088file.mu.html#L16'>resource</a>
<span id="L14" class="LineNr"> 14 </span>]
<span id="L15" class="LineNr"> 15 </span>
<span id="L16" class="LineNr"> 16 </span><span class="muData">container</span> <a href='088file.mu.html#L16'>resource</a> [
<span id="L17" class="LineNr"> 17 </span> name:text
<span id="L18" class="LineNr"> 18 </span> contents:text
<span id="L19" class="LineNr"> 19 </span>]
<span id="L20" class="LineNr"> 20 </span>
<span id="L21" class="LineNr"> 21 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L21'>start-reading</a> <a href='088file.mu.html#L11'>resources</a>:&:<a href='088file.mu.html#L11'>resources</a>, filename:text<span class="muRecipe"> -> </span>contents:&:<a href='075channel.mu.html#L43'>source</a>:char, error?:bool [
<span id="L22" class="LineNr"> 22 </span> <span class="Constant">local-scope</span>
<span id="L23" class="LineNr"> 23 </span> <span class="Constant">load-inputs</span>
<span id="L24" class="LineNr"> 24 </span> error? <span class="Special"><-</span> copy <span class="Constant">0/false</span>
<span id="L25" class="LineNr"> 25 </span> <span class="Delimiter">{</span>
<span id="L26" class="LineNr"> 26 </span> <span class="muControl">break-unless</span> <a href='088file.mu.html#L11'>resources</a>
<span id="L27" class="LineNr"> 27 </span> <span class="Comment"># fake file system</span>
<span id="L28" class="LineNr"> 28 </span> contents, error? <span class="Special"><-</span> <a href='088file.mu.html#L53'>start-reading-from-fake-resource</a> <a href='088file.mu.html#L11'>resources</a>, filename
<span id="L29" class="LineNr"> 29 </span> <span class="muControl"> return</span>
<span id="L30" class="LineNr"> 30 </span> <span class="Delimiter">}</span>
<span id="L31" class="LineNr"> 31 </span> <span class="Comment"># real file system</span>
<span id="L32" class="LineNr"> 32 </span> file:num <span class="Special"><-</span> $open-file-for-reading filename
<span id="L33" class="LineNr"> 33 </span> <span class="muControl">return-unless</span> file, <span class="Constant">0/contents</span>, <span class="Constant">1/error?</span>
<span id="L34" class="LineNr"> 34 </span> contents:&:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special"><-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
<span id="L35" class="LineNr"> 35 </span> <span class="muControl">start-running</span> <a href='088file.mu.html#L76'>receive-from-file</a> file, <a href='075channel.mu.html#L47'>sink</a>
<span id="L36" class="LineNr"> 36 </span>]
<span id="L37" class="LineNr"> 37 </span>
<span id="L38" class="LineNr"> 38 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L38'>slurp</a> <a href='088file.mu.html#L11'>resources</a>:&:<a href='088file.mu.html#L11'>resources</a>, filename:text<span class="muRecipe"> -> </span>contents:text, error?:bool [
<span id="L39" class="LineNr"> 39 </span> <span class="Constant">local-scope</span>
<span id="L40" class="LineNr"> 40 </span> <span class="Constant">load-inputs</span>
<span id="L41" class="LineNr"> 41 </span> <a href='075channel.mu.html#L43'>source</a>:&:<a href='075channel.mu.html#L43'>source</a>:char, error?:bool <span class="Special"><-</span> <a href='088file.mu.html#L21'>start-reading</a> <a href='088file.mu.html#L11'>resources</a>, filename
<span id="L42" class="LineNr"> 42 </span> <span class="muControl">return-if</span> error?, <span class="Constant">0/contents</span>
<span id="L43" class="LineNr"> 43 </span> buf:&:<a href='061text.mu.html#L120'>buffer</a>:char <span class="Special"><-</span> <a href='061text.mu.html#L125'>new-buffer</a> <span class="Constant">30/capacity</span>
<span id="L44" class="LineNr"> 44 </span> <span class="Delimiter">{</span>
<span id="L45" class="LineNr"> 45 </span> c:char, done?:bool, <a href='075channel.mu.html#L43'>source</a> <span class="Special"><-</span> read <a href='075channel.mu.html#L43'>source</a>
<span id="L46" class="LineNr"> 46 </span> <span class="muControl">break-if</span> done?
<span id="L47" class="LineNr"> 47 </span> buf <span class="Special"><-</span> append buf, c
<span id="L48" class="LineNr"> 48 </span> <span class="muControl"> loop</span>
<span id="L49" class="LineNr"> 49 </span> <span class="Delimiter">}</span>
<span id="L50" class="LineNr"> 50 </span> contents <span class="Special"><-</span> <a href='061text.mu.html#L338'>buffer-to-array</a> buf
<span id="L51" class="LineNr"> 51 </span>]
<span id="L52" class="LineNr"> 52 </span>
<span id="L53" class="LineNr"> 53 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L53'>start-reading-from-fake-resource</a> <a href='088file.mu.html#L11'>resources</a>:&:<a href='088file.mu.html#L11'>resources</a>, <a href='088file.mu.html#L16'>resource</a>:text<span class="muRecipe"> -> </span>contents:&:<a href='075channel.mu.html#L43'>source</a>:char, error?:bool [
<span id="L54" class="LineNr"> 54 </span> <span class="Constant">local-scope</span>
<span id="L55" class="LineNr"> 55 </span> <span class="Constant">load-inputs</span>
<span id="L56" class="LineNr"> 56 </span> error? <span class="Special"><-</span> copy <span class="Constant">0/no-error</span>
<span id="L57" class="LineNr"> 57 </span> i:num <span class="Special"><-</span> copy<span class="Constant"> 0</span>
<span id="L58" class="LineNr"> 58 </span> data:&:@:<a href='088file.mu.html#L16'>resource</a> <span class="Special"><-</span> get *resources, <span class="Constant">data:offset</span>
<span id="L59" class="LineNr"> 59 </span> len:num <span class="Special"><-</span> length *data
<span id="L60" class="LineNr"> 60 </span> <span class="Delimiter">{</span>
<span id="L61" class="LineNr"> 61 </span> done?:bool <span class="Special"><-</span> greater-or-equal i, len
<span id="L62" class="LineNr"> 62 </span> <span class="muControl">break-if</span> done?
<span id="L63" class="LineNr"> 63 </span> tmp:<a href='088file.mu.html#L16'>resource</a> <span class="Special"><-</span> index *data, i
<span id="L64" class="LineNr"> 64 </span> i <span class="Special"><-</span> add i,<span class="Constant"> 1</span>
<span id="L65" class="LineNr"> 65 </span> curr-resource:text <span class="Special"><-</span> get tmp, <span class="Constant">name:offset</span>
<span id="L66" class="LineNr"> 66 </span> found?:bool <span class="Special"><-</span> equal <a href='088file.mu.html#L16'>resource</a>, curr-resource
<span id="L67" class="LineNr"> 67 </span> <span class="muControl">loop-unless</span> found?
<span id="L68" class="LineNr"> 68 </span> contents:&:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special"><-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
<span id="L69" class="LineNr"> 69 </span> curr-contents:text <span class="Special"><-</span> get tmp, <span class="Constant">contents:offset</span>
<span id="L70" class="LineNr"> 70 </span> <span class="muControl">start-running</span> <a href='088file.mu.html#L89'>receive-from-text</a> curr-contents, <a href='075channel.mu.html#L47'>sink</a>
<span id="L71" class="LineNr"> 71 </span> <span class="muControl"> return</span>
<span id="L72" class="LineNr"> 72 </span> <span class="Delimiter">}</span>
<span id="L73" class="LineNr"> 73 </span> <span class="muControl"> return</span> <span class="Constant">0/not-found</span>, <span class="Constant">1/error</span>
<span id="L74" class="LineNr"> 74 </span>]
<span id="L75" class="LineNr"> 75 </span>
<span id="L76" class="LineNr"> 76 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L76'>receive-from-file</a> file:num, <a href='075channel.mu.html#L47'>sink</a>:&:<a href='075channel.mu.html#L47'>sink</a>:char<span class="muRecipe"> -> </span><a href='075channel.mu.html#L47'>sink</a>:&:<a href='075channel.mu.html#L47'>sink</a>:char [
<span id="L77" class="LineNr"> 77 </span> <span class="Constant">local-scope</span>
<span id="L78" class="LineNr"> 78 </span> <span class="Constant">load-inputs</span>
<span id="L79" class="LineNr"> 79 </span> <span class="Delimiter">{</span>
<span id="L80" class="LineNr"> 80 </span> c:char, eof?:bool <span class="Special"><-</span> $read-from-file file
<span id="L81" class="LineNr"> 81 </span> <span class="muControl">break-if</span> eof?
<span id="L82" class="LineNr"> 82 </span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special"><-</span> <a href='075channel.mu.html#L67'>write</a> <a href='075channel.mu.html#L47'>sink</a>, c
<span id="L83" class="LineNr"> 83 </span> <span class="muControl"> loop</span>
<span id="L84" class="LineNr"> 84 </span> <span class="Delimiter">}</span>
<span id="L85" class="LineNr"> 85 </span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special"><-</span> close <a href='075channel.mu.html#L47'>sink</a>
<span id="L86" class="LineNr"> 86 </span> file <span class="Special"><-</span> $close-file file
<span id="L87" class="LineNr"> 87 </span>]
<span id="L88" class="LineNr"> 88 </span>
<span id="L89" class="LineNr"> 89 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L89'>receive-from-text</a> contents:text, <a href='075channel.mu.html#L47'>sink</a>:&:<a href='075channel.mu.html#L47'>sink</a>:char<span class="muRecipe"> -> </span><a href='075channel.mu.html#L47'>sink</a>:&:<a href='075channel.mu.html#L47'>sink</a>:char [
<span id="L90" class="LineNr"> 90 </span> <span class="Constant">local-scope</span>
<span id="L91" class="LineNr"> 91 </span> <span class="Constant">load-inputs</span>
<span id="L92" class="LineNr"> 92 </span> i:num <span class="Special"><-</span> copy<span class="Constant"> 0</span>
<span id="L93" class="LineNr"> 93 </span> len:num <span class="Special"><-</span> length *contents
<span id="L94" class="LineNr"> 94 </span> <span class="Delimiter">{</span>
<span id="L95" class="LineNr"> 95 </span> done?:bool <span class="Special"><-</span> greater-or-equal i, len
<span id="L96" class="LineNr"> 96 </span> <span class="muControl">break-if</span> done?
<span id="L97" class="LineNr"> 97 </span> c:char <span class="Special"><-</span> index *contents, i
<span id="L98" class="LineNr"> 98 </span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special"><-</span> <a href='075channel.mu.html#L67'>write</a> <a href='075channel.mu.html#L47'>sink</a>, c
<span id="L99" class="LineNr"> 99 </span> i <span class="Special"><-</span> add i,<span class="Constant"> 1</span>
<span id="L100" class="LineNr">100 </span> <span class="muControl"> loop</span>
<span id="L101" class="LineNr">101 </span> <span class="Delimiter">}</span>
<span id="L102" class="LineNr">102 </span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special"><-</span> close <a href='075channel.mu.html#L47'>sink</a>
<span id="L103" class="LineNr">103 </span>]
<span id="L104" class="LineNr">104 </span>
<span id="L105" class="LineNr">105 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>:&:<a href='088file.mu.html#L11'>resources</a>, filename:text<span class="muRecipe"> -> </span><a href='075channel.mu.html#L47'>sink</a>:&:<a href='075channel.mu.html#L47'>sink</a>:char, routine-id:num, error?:bool [
<span id="L106" class="LineNr">106 </span> <span class="Constant">local-scope</span>
<span id="L107" class="LineNr">107 </span> <span class="Constant">load-inputs</span>
<span id="L108" class="LineNr">108 </span> error? <span class="Special"><-</span> copy <span class="Constant">0/false</span>
<span id="L109" class="LineNr">109 </span> <a href='075channel.mu.html#L43'>source</a>:&:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special"><-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
<span id="L110" class="LineNr">110 </span> <span class="Delimiter">{</span>
<span id="L111" class="LineNr">111 </span> <span class="muControl">break-unless</span> <a href='088file.mu.html#L11'>resources</a>
<span id="L112" class="LineNr">112 </span> <span class="Comment"># fake file system</span>
<span id="L113" class="LineNr">113 </span> routine-id <span class="Special"><-</span> <span class="muControl">start-running</span> <a href='088file.mu.html#L162'>transmit-to-fake-resource</a> <a href='088file.mu.html#L11'>resources</a>, filename, <a href='075channel.mu.html#L43'>source</a>
<span id="L114" class="LineNr">114 </span> <span class="muControl"> return</span>
<span id="L115" class="LineNr">115 </span> <span class="Delimiter">}</span>
<span id="L116" class="LineNr">116 </span> <span class="Comment"># real file system</span>
<span id="L117" class="LineNr">117 </span> file:num <span class="Special"><-</span> $open-file-for-writing filename
<span id="L118" class="LineNr">118 </span> <span class="muControl">return-unless</span> file, <span class="Constant">0/sink</span>, <span class="Constant">0/routine-id</span>, <span class="Constant">1/error?</span>
<span id="L119" class="LineNr">119 </span> <span class="Delimiter">{</span>
<span id="L120" class="LineNr">120 </span> <span class="muControl">break-if</span> file
<span id="L121" class="LineNr">121 </span> msg:text <span class="Special"><-</span> append <span class="Constant">[no such file: ]</span> filename
<span id="L122" class="LineNr">122 </span> assert file, msg
<span id="L123" class="LineNr">123 </span> <span class="Delimiter">}</span>
<span id="L124" class="LineNr">124 </span> routine-id <span class="Special"><-</span> <span class="muControl">start-running</span> <a href='088file.mu.html#L150'>transmit-to-file</a> file, <a href='075channel.mu.html#L43'>source</a>
<span id="L125" class="LineNr">125 </span>]
<span id="L126" class="LineNr">126 </span>
<span id="L127" class="LineNr">127 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L127'>dump</a> <a href='088file.mu.html#L11'>resources</a>:&:<a href='088file.mu.html#L11'>resources</a>, filename:text, contents:text<span class="muRecipe"> -> </span><a href='088file.mu.html#L11'>resources</a>:&:<a href='088file.mu.html#L11'>resources</a>, error?:bool [
<span id="L128" class="LineNr">128 </span> <span class="Constant">local-scope</span>
<span id="L129" class="LineNr">129 </span> <span class="Constant">load-inputs</span>
<span id="L130" class="LineNr">130 </span> <span class="Comment"># todo: really create an empty file</span>
<span id="L131" class="LineNr">131 </span> <span class="muControl">return-unless</span> contents, <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">0/no-error</span>
<span id="L132" class="LineNr">132 </span> sink-file:&:<a href='075channel.mu.html#L47'>sink</a>:char, write-routine:num, error?:bool <span class="Special"><-</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>, filename
<span id="L133" class="LineNr">133 </span> <span class="muControl">return-if</span> error?
<span id="L134" class="LineNr">134 </span> i:num <span class="Special"><-</span> copy<span class="Constant"> 0</span>
<span id="L135" class="LineNr">135 </span> len:num <span class="Special"><-</span> length *contents
<span id="L136" class="LineNr">136 </span> <span class="Delimiter">{</span>
<span id="L137" class="LineNr">137 </span> done?:bool <span class="Special"><-</span> greater-or-equal i, len
<span id="L138" class="LineNr">138 </span> <span class="muControl">break-if</span> done?
<span id="L139" class="LineNr">139 </span> c:char <span class="Special"><-</span> index *contents, i
<span id="L140" class="LineNr">140 </span> sink-file <span class="Special"><-</span> <a href='075channel.mu.html#L67'>write</a> sink-file, c
<span id="L141" class="LineNr">141 </span> i <span class="Special"><-</span> add i,<span class="Constant"> 1</span>
<span id="L142" class="LineNr">142 </span> <span class="muControl"> loop</span>
<span id="L143" class="LineNr">143 </span> <span class="Delimiter">}</span>
<span id="L144" class="LineNr">144 </span> close sink-file
<span id="L145" class="LineNr">145 </span> <span class="Comment"># make sure to wait for the file to be actually written to disk</span>
<span id="L146" class="LineNr">146 </span> <span class="Comment"># (Mu practices structured concurrency: <a href="http://250bpm.com/blog:71">http://250bpm.com/blog:71</a>)</span>
<span id="L147" class="LineNr">147 </span> wait-for-routine write-routine
<span id="L148" class="LineNr">148 </span>]
<span id="L149" class="LineNr">149 </span>
<span id="L150" class="LineNr">150 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L150'>transmit-to-file</a> file:num, <a href='075channel.mu.html#L43'>source</a>:&:<a href='075channel.mu.html#L43'>source</a>:char<span class="muRecipe"> -> </span><a href='075channel.mu.html#L43'>source</a>:&:<a href='075channel.mu.html#L43'>source</a>:char [
<span id="L151" class="LineNr">151 </span> <span class="Constant">local-scope</span>
<span id="L152" class="LineNr">152 </span> <span class="Constant">load-inputs</span>
<span id="L153" class="LineNr">153 </span> <span class="Delimiter">{</span>
<span id="L154" class="LineNr">154 </span> c:char, done?:bool, <a href='075channel.mu.html#L43'>source</a> <span class="Special"><-</span> read <a href='075channel.mu.html#L43'>source</a>
<span id="L155" class="LineNr">155 </span> <span class="muControl">break-if</span> done?
<span id="L156" class="LineNr">156 </span> $write-to-file file, c
<span id="L157" class="LineNr">157 </span> <span class="muControl"> loop</span>
<span id="L158" class="LineNr">158 </span> <span class="Delimiter">}</span>
<span id="L159" class="LineNr">159 </span> file <span class="Special"><-</span> $close-file file
<span id="L160" class="LineNr">160 </span>]
<span id="L161" class="LineNr">161 </span>
<span id="L162" class="LineNr">162 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L162'>transmit-to-fake-resource</a> <a href='088file.mu.html#L11'>resources</a>:&:<a href='088file.mu.html#L11'>resources</a>, filename:text, <a href='075channel.mu.html#L43'>source</a>:&:<a href='075channel.mu.html#L43'>source</a>:char<span class="muRecipe"> -> </span><a href='088file.mu.html#L11'>resources</a>:&:<a href='088file.mu.html#L11'>resources</a>, <a href='075channel.mu.html#L43'>source</a>:&:<a href='075channel.mu.html#L43'>source</a>:char [
<span id="L163" class="LineNr">163 </span> <span class="Constant">local-scope</span>
<span id="L164" class="LineNr">164 </span> <span class="Constant">load-inputs</span>
<span id="L165" class="LineNr">165 </span> lock:location <span class="Special"><-</span> get-location *resources, <span class="Constant">lock:offset</span>
<span id="L166" class="LineNr">166 </span> wait-for-reset-then-set lock
<span id="L167" class="LineNr">167 </span> <span class="Comment"># compute new file contents</span>
<span id="L168" class="LineNr">168 </span> buf:&:<a href='061text.mu.html#L120'>buffer</a>:char <span class="Special"><-</span> <a href='061text.mu.html#L125'>new-buffer</a><span class="Constant"> 30</span>
<span id="L169" class="LineNr">169 </span> <span class="Delimiter">{</span>
<span id="L170" class="LineNr">170 </span> c:char, done?:bool, <a href='075channel.mu.html#L43'>source</a> <span class="Special"><-</span> read <a href='075channel.mu.html#L43'>source</a>
<span id="L171" class="LineNr">171 </span> <span class="muControl">break-if</span> done?
<span id="L172" class="LineNr">172 </span> buf <span class="Special"><-</span> append buf, c
<span id="L173" class="LineNr">173 </span> <span class="muControl"> loop</span>
<span id="L174" class="LineNr">174 </span> <span class="Delimiter">}</span>
<span id="L175" class="LineNr">175 </span> contents:text <span class="Special"><-</span> <a href='061text.mu.html#L338'>buffer-to-array</a> buf
<span id="L176" class="LineNr">176 </span> new-resource:<a href='088file.mu.html#L16'>resource</a> <span class="Special"><-</span> merge filename, contents
<span id="L177" class="LineNr">177 </span> <span class="Comment"># write to resources</span>
<span id="L178" class="LineNr">178 </span> curr-filename:text <span class="Special"><-</span> copy<span class="Constant"> 0</span>
<span id="L179" class="LineNr">179 </span> data:&:@:<a href='088file.mu.html#L16'>resource</a> <span class="Special"><-</span> get *resources, <span class="Constant">data:offset</span>
<span id="L180" class="LineNr">180 </span> <span class="Comment"># replace file contents if it already exists</span>
<span id="L181" class="LineNr">181 </span> i:num <span class="Special"><-</span> copy<span class="Constant"> 0</span>
<span id="L182" class="LineNr">182 </span> len:num <span class="Special"><-</span> length *data
<span id="L183" class="LineNr">183 </span> <span class="Delimiter">{</span>
<span id="L184" class="LineNr">184 </span> done?:bool <span class="Special"><-</span> greater-or-equal i, len
<span id="L185" class="LineNr">185 </span> <span class="muControl">break-if</span> done?
<span id="L186" class="LineNr">186 </span> tmp:<a href='088file.mu.html#L16'>resource</a> <span class="Special"><-</span> index *data, i
<span id="L187" class="LineNr">187 </span> curr-filename <span class="Special"><-</span> get tmp, <span class="Constant">name:offset</span>
<span id="L188" class="LineNr">188 </span> found?:bool <span class="Special"><-</span> equal filename, curr-filename
<span id="L189" class="LineNr">189 </span> <span class="Delimiter">{</span>
<span id="L190" class="LineNr">190 </span> <span class="muControl">break-unless</span> found?
<span id="L191" class="LineNr">191 </span> put-index *data, i, new-resource
<span id="L192" class="LineNr">192 </span> <span class="muControl"> jump</span> <span class="Constant">+unlock-and-exit</span>
<span id="L193" class="LineNr">193 </span> <span class="Delimiter">}</span>
<span id="L194" class="LineNr">194 </span> i <span class="Special"><-</span> add i,<span class="Constant"> 1</span>
<span id="L195" class="LineNr">195 </span> <span class="muControl"> loop</span>
<span id="L196" class="LineNr">196 </span> <span class="Delimiter">}</span>
<span id="L197" class="LineNr">197 </span> <span class="Comment"># if file didn't already exist, make room for it</span>
<span id="L198" class="LineNr">198 </span> new-len:num <span class="Special"><-</span> add len,<span class="Constant"> 1</span>
<span id="L199" class="LineNr">199 </span> new-data:&:@:<a href='088file.mu.html#L16'>resource</a> <span class="Special"><-</span> new <span class="Constant"><a href='088file.mu.html#L16'>resource</a>:type</span>, new-len
<span id="L200" class="LineNr">200 </span> put *resources, <span class="Constant">data:offset</span>, new-data
<span id="L201" class="LineNr">201 </span> <span class="Comment"># copy over old files</span>
<span id="L202" class="LineNr">202 </span> i:num <span class="Special"><-</span> copy<span class="Constant"> 0</span>
<span id="L203" class="LineNr">203 </span> <span class="Delimiter">{</span>
<span id="L204" class="LineNr">204 </span> done?:bool <span class="Special"><-</span> greater-or-equal i, len
<span id="L205" class="LineNr">205 </span> <span class="muControl">break-if</span> done?
<span id="L206" class="LineNr">206 </span> tmp:<a href='088file.mu.html#L16'>resource</a> <span class="Special"><-</span> index *data, i
<span id="L207" class="LineNr">207 </span> put-index *new-data, i, tmp
<span id="L208" class="LineNr">208 </span> <span class="Delimiter">}</span>
<span id="L209" class="LineNr">209 </span> <span class="Comment"># write new file</span>
<span id="L210" class="LineNr">210 </span> put-index *new-data, len, new-resource
<span id="L211" class="LineNr">211 </span><span class="Constant"> +unlock-and-exit</span>
<span id="L212" class="LineNr">212 </span> reset lock
<span id="L213" class="LineNr">213 </span>]
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|