1 |
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2 |
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3 |
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4 |
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5 | 'use strict';
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6 |
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7 | var ID = 0;
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8 | var MAX_INT = Math.pow(2, 32) - 1;
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9 |
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10 | var PROBES = {
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11 |
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12 | 'route-start': ['char *', 'char *', 'int', 'char *', 'char *', 'json'],
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13 |
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14 |
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15 | 'handler-start': ['char *', 'char *', 'char *', 'int'],
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16 |
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17 |
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18 | 'handler-done': ['char *', 'char *', 'char *', 'int'],
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19 |
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20 |
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21 | 'route-done': ['char *', 'char *', 'int', 'int', 'json'],
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22 |
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23 |
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24 |
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25 | 'client-request': ['char *', 'char *', 'json', 'int'],
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26 |
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27 |
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28 | 'client-response': ['int', 'int', 'json'],
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29 |
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30 |
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31 | 'client-error': ['id', 'char *']
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32 | };
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33 | var PROVIDER;
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34 |
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35 |
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36 |
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37 |
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38 | module.exports = (function exportStaticProvider() {
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39 | if (!PROVIDER) {
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40 | try {
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41 | var dtrace = require('dtrace-provider');
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42 | PROVIDER = dtrace.createDTraceProvider('restify');
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43 | } catch (e) {
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44 | PROVIDER = {
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45 | fire: function fire() {},
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46 | enable: function enable() {},
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47 | addProbe: function addProbe() {
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48 | var p = {
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49 | fire: function fire() {}
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50 | };
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51 | return p;
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52 | },
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53 | removeProbe: function removeProbe() {},
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54 | disable: function disable() {}
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55 | };
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56 | }
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57 |
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58 | PROVIDER._rstfy_probes = {};
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59 |
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60 | Object.keys(PROBES).forEach(function forEach(p) {
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61 | var args = PROBES[p].splice(0);
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62 | args.unshift(p);
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63 |
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64 | var probe = PROVIDER.addProbe.apply(PROVIDER, args);
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65 | PROVIDER._rstfy_probes[p] = probe;
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66 | });
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67 |
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68 | PROVIDER.enable();
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69 |
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70 | PROVIDER.nextId = function nextId() {
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71 | if (++ID >= MAX_INT) {
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72 | ID = 1;
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73 | }
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74 |
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75 | return ID;
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76 | };
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77 | }
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78 |
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79 | return PROVIDER;
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80 | })();
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