Skip to content
Navigation Menu
{{ message }}
forked from microsoft/TypeScript
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathserver.ts
More file actions
274 lines (239 loc) · 8.77 KB
/
Copy pathserver.ts
File metadata and controls
274 lines (239 loc) · 8.77 KB
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
/// <reference path="node.d.ts" />
/// <reference path="session.ts" />
module ts.server {
var nodeproto: typeof NodeJS._debugger = require('_debugger');
var readline: NodeJS.ReadLine = require('readline');
var path: NodeJS.Path = require('path');
var fs: typeof NodeJS.fs = require('fs');
var rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
terminal: false,
});
class Logger implements ts.server.Logger {
fd = -1;
seq = 0;
inGroup = false;
firstInGroup = true;
constructor(public logFilename: string, public level: string) {
}
static padStringRight(str: string, padding: string) {
return (str + padding).slice(0, padding.length);
}
close() {
if (this.fd >= 0) {
fs.close(this.fd);
}
}
perftrc(s: string) {
this.msg(s, "Perf");
}
info(s: string) {
this.msg(s, "Info");
}
startGroup() {
this.inGroup = true;
this.firstInGroup = true;
}
endGroup() {
this.inGroup = false;
this.seq++;
this.firstInGroup = true;
}
loggingEnabled() {
return !!this.logFilename;
}
isVerbose() {
return this.loggingEnabled() && (this.level == "verbose");
}
msg(s: string, type = "Err") {
if (this.fd < 0) {
if (this.logFilename) {
this.fd = fs.openSync(this.logFilename, "w");
}
}
if (this.fd >= 0) {
s = s + "\n";
var prefix = Logger.padStringRight(type + " " + this.seq.toString(), " ");
if (this.firstInGroup) {
s = prefix + s;
this.firstInGroup = false;
}
if (!this.inGroup) {
this.seq++;
this.firstInGroup = true;
}
var buf = new Buffer(s);
fs.writeSync(this.fd, buf, 0, buf.length, null);
}
}
}
interface WatchedFile {
fileName: string;
callback: (fileName: string) => void;
mtime: Date;
}
class WatchedFileSet {
private watchedFiles: WatchedFile[] = [];
private nextFileToCheck = 0;
private watchTimer: NodeJS.Timer;
// average async stat takes about 30 microseconds
// set chunk size to do 30 files in < 1 millisecond
constructor(public interval = 2500, public chunkSize = 30) {
}
private static copyListRemovingItem<T>(item: T, list: T[]) {
var copiedList: T[] = [];
for (var i = 0, len = list.length; i < len; i++) {
if (list[i] != item) {
copiedList.push(list[i]);
}
}
return copiedList;
}
private static getModifiedTime(fileName: string): Date {
return fs.statSync(fileName).mtime;
}
private poll(checkedIndex: number) {
var watchedFile = this.watchedFiles[checkedIndex];
if (!watchedFile) {
return;
}
fs.stat(watchedFile.fileName,(err, stats) => {
if (err) {
watchedFile.callback(watchedFile.fileName);
}
else if (watchedFile.mtime.getTime() != stats.mtime.getTime()) {
watchedFile.mtime = WatchedFileSet.getModifiedTime(watchedFile.fileName);
watchedFile.callback(watchedFile.fileName);
}
});
}
// this implementation uses polling and
// stat due to inconsistencies of fs.watch
// and efficiency of stat on modern filesystems
private startWatchTimer() {
this.watchTimer = setInterval(() => {
var count = 0;
var nextToCheck = this.nextFileToCheck;
var firstCheck = -1;
while ((count < this.chunkSize) && (nextToCheck != firstCheck)) {
this.poll(nextToCheck);
if (firstCheck < 0) {
firstCheck = nextToCheck;
}
nextToCheck++;
if (nextToCheck === this.watchedFiles.length) {
nextToCheck = 0;
}
count++;
}
this.nextFileToCheck = nextToCheck;
}, this.interval);
}
addFile(fileName: string, callback: (fileName: string) => void ): WatchedFile {
var file: WatchedFile = {
fileName,
callback,
mtime: WatchedFileSet.getModifiedTime(fileName)
};
this.watchedFiles.push(file);
if (this.watchedFiles.length === 1) {
this.startWatchTimer();
}
return file;
}
removeFile(file: WatchedFile) {
this.watchedFiles = WatchedFileSet.copyListRemovingItem(file, this.watchedFiles);
}
}
class IOSession extends Session {
constructor(host: ServerHost, logger: ts.server.Logger) {
super(host, logger);
}
exit() {
this.projectService.log("Exiting...","Info");
this.projectService.closeLog();
process.exit(0);
}
listen() {
rl.on('line',(input: string) => {
var message = input.trim();
this.onMessage(message);
});
rl.on('close',() => {
this.exit();
});
}
}
interface LogOptions {
file?: string;
detailLevel?: string;
}
function parseLoggingEnvironmentString(logEnvStr: string): LogOptions {
var logEnv: LogOptions = {};
var args = logEnvStr.split(' ');
for (var i = 0, len = args.length; i < (len - 1); i += 2) {
var option = args[i];
var value = args[i + 1];
if (option && value) {
switch (option) {
case "-file":
logEnv.file = value;
break;
case "-level":
logEnv.detailLevel = value;
break;
}
}
}
return logEnv;
}
// TSS_LOG "{ level: "normal | verbose | terse", file?: string}"
function createLoggerFromEnv() {
var fileName: string = undefined;
var detailLevel = "normal";
var logEnvStr = process.env["TSS_LOG"];
if (logEnvStr) {
var logEnv = parseLoggingEnvironmentString(logEnvStr);
if (logEnv.file) {
fileName = logEnv.file;
}
else {
fileName = __dirname + "/.log" + process.pid.toString();
}
if (logEnv.detailLevel) {
detailLevel = logEnv.detailLevel;
}
}
return new Logger(fileName, detailLevel);
}
// This places log file in the directory containing editorServices.js
// TODO: check that this location is writable
var logger = createLoggerFromEnv();
// REVIEW: for now this implementation uses polling.
// The advantage of polling is that it works reliably
// on all os and with network mounted files.
// For 90 referenced files, the average time to detect
// changes is 2*msInterval (by default 5 seconds).
// The overhead of this is .04 percent (1/2500) with
// average pause of < 1 millisecond (and max
// pause less than 1.5 milliseconds); question is
// do we anticipate reference sets in the 100s and
// do we care about waiting 10-20 seconds to detect
// changes for large reference sets? If so, do we want
// to increase the chunk size or decrease the interval
// time dynamically to match the large reference set?
var watchedFileSet = new WatchedFileSet();
ts.sys.watchFile = function (fileName, callback) {
var watchedFile = watchedFileSet.addFile(fileName, callback);
return {
close: () => watchedFileSet.removeFile(watchedFile)
}
};
var ioSession = new IOSession(ts.sys, logger);
process.on('uncaughtException', function(err: Error) {
ioSession.logError(err, "unknown");
});
// Start listening
ioSession.listen();
}
You can’t perform that action at this time.