Mercurial Hosting > luan
annotate src/luan/modules/ThreadLuan.java @ 1175:d6d0bd05ad8c
exit on bind conflict, serve "127.0.0.1" for serve_for_nginx
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Mon, 12 Feb 2018 14:55:28 -0700 |
parents | 7ef40e1923b7 |
children | d3a3ca116e42 |
rev | line source |
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1 package luan.modules; |
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2 |
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3 import java.io.Closeable; |
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4 import java.util.Arrays; |
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5 import java.util.Iterator; |
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6 import java.util.Map; |
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7 import java.util.HashMap; |
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8 import java.util.LinkedHashMap; |
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9 import java.util.concurrent.Executor; |
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10 import java.util.concurrent.Executors; |
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11 import java.util.concurrent.ScheduledThreadPoolExecutor; |
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12 import java.util.concurrent.ScheduledFuture; |
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13 import java.util.concurrent.TimeUnit; |
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14 import luan.Luan; |
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15 import luan.LuanState; |
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16 import luan.LuanFunction; |
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17 import luan.LuanTable; |
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18 import luan.LuanException; |
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19 import luan.LuanCloner; |
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20 |
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21 |
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22 public final class ThreadLuan { |
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23 private static final Executor exec = Executors.newCachedThreadPool(); |
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24 public static final ScheduledThreadPoolExecutor scheduler = new ScheduledThreadPoolExecutor(1); |
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25 |
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26 public static void fork(LuanState luan,LuanFunction fn,Object... args) { |
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27 LuanCloner cloner = new LuanCloner(LuanCloner.Type.COMPLETE); |
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28 final LuanState newLuan = (LuanState)cloner.clone(luan); |
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29 final LuanFunction newFn = (LuanFunction)cloner.get(fn); |
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30 final Object[] newArgs = cloner.clone(args); |
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31 exec.execute(new Runnable(){public void run() { |
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32 try { |
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33 newFn.call(newLuan,newArgs); |
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34 } catch(LuanException e) { |
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35 e.printStackTrace(); |
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36 } |
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37 }}); |
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38 } |
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39 /* |
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40 public static LuanFunction synchronized_(final LuanState luan,final LuanFunction fn) throws LuanException { |
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41 Utils.checkNotNull(fn); |
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42 return new LuanFunction() { |
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43 @Override public Object call(LuanState ingored,Object[] args) throws LuanException { |
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44 synchronized(luan) { |
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45 return fn.call(luan,args); |
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46 } |
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47 } |
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48 }; |
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49 } |
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50 */ |
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51 public static void schedule(LuanState luan,long delay,boolean repeat,LuanFunction fn,Object... args) { |
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52 LuanCloner cloner = new LuanCloner(LuanCloner.Type.COMPLETE); |
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53 final LuanState newLuan = (LuanState)cloner.clone(luan); |
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54 final LuanFunction newFn = (LuanFunction)cloner.get(fn); |
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55 final Object[] newArgs = cloner.clone(args); |
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56 Runnable r = new Runnable(){public void run() { |
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57 try { |
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58 newFn.call(newLuan,newArgs); |
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59 } catch(LuanException e) { |
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60 e.printStackTrace(); |
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61 } |
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62 }}; |
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63 final ScheduledFuture sf; |
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64 if( repeat ) { |
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65 sf = scheduler.scheduleWithFixedDelay(r,delay,delay,TimeUnit.MILLISECONDS); |
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66 } else { |
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67 sf = scheduler.schedule(r,delay,TimeUnit.MILLISECONDS); |
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68 } |
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69 final Closeable c = new Closeable(){public void close(){ |
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70 boolean b = sf.cancel(false); |
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71 }}; |
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72 luan.registry().put(c,c); // prevent gc |
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73 luan.onClose(c); |
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74 } |
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75 |
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76 /* |
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77 public static class GlobalMap { |
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78 |
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79 private static class Value { |
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80 final long time = System.currentTimeMillis(); |
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81 final Object v; |
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82 |
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83 Value(Object v) { |
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84 this.v = v; |
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85 } |
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86 } |
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87 |
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88 public long timeout = 60000L; // one minute |
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89 private Map<String,Value> map = new LinkedHashMap<String,Value>() { |
1080 | 90 protected boolean removeEldestEntry(Map.Entry<String,Value> eldest) { |
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91 return eldest.getValue().time < System.currentTimeMillis() - timeout; |
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92 } |
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93 }; |
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94 |
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95 public synchronized Object get(String key) { |
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96 Value val = map.get(key); |
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97 return val==null ? null : val.v; |
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98 } |
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99 |
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100 public synchronized Object put(String key,Object v) throws LuanException { |
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101 Value val; |
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102 if( v == null ) { |
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103 val = map.remove(key); |
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104 } else { |
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105 if( !(v instanceof String || v instanceof Boolean || v instanceof Number) ) |
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106 throw new LuanException("can't assign type "+Luan.type(v)+" to Thread.global"); |
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107 val = map.put(key,new Value(v)); |
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108 } |
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109 return val==null ? null : val.v; |
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110 } |
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111 } |
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112 */ |
1104 | 113 |
114 public static void sleep(long millis) throws InterruptedException { | |
115 Thread.sleep(millis); | |
116 } | |
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117 |
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118 |
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119 private static boolean isPrimitive(Object v) { |
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120 if( v instanceof Object[] ) { |
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121 Object[] a = (Object[])v; |
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122 for( Object obj : a ) { |
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123 if( !isPrimitive(obj) ) |
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124 return false; |
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125 } |
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126 return true; |
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127 } else { |
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128 return v==null || v instanceof String || v instanceof Boolean || v instanceof Number; |
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129 } |
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130 } |
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131 |
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132 public static final class Callable { |
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133 private long expires; |
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134 private final LuanState luan = new LuanState(); |
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135 private final LuanTable fns; |
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136 |
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137 Callable(LuanState luan,LuanTable fns) { |
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138 LuanCloner cloner = new LuanCloner(LuanCloner.Type.COMPLETE); |
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139 this.fns = (LuanTable)cloner.get(fns); |
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140 } |
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141 |
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142 public synchronized Object call(String fnName,Object... args) throws LuanException { |
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143 if( !isPrimitive(args) ) |
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144 throw new LuanException("can't pass non-primitive type to global_callable "+Arrays.asList(args)); |
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145 Object f = fns.get(luan,fnName); |
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146 if( f == null ) |
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147 throw new LuanException("function '"+fnName+"' not found in global_callable"); |
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148 if( !(f instanceof LuanFunction) ) |
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149 throw new LuanException("value of '"+fnName+"' not a function in global_callable"); |
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150 LuanFunction fn = (LuanFunction)f; |
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151 Object rtn = fn.call(luan,args); |
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152 if( !isPrimitive(rtn) ) |
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153 throw new LuanException("can't return non-primitive type from global_callable"); |
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154 return rtn; |
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155 } |
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156 } |
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157 |
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158 private static Map<String,Callable> callableMap = new HashMap<String,Callable>(); |
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159 |
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160 private static void sweep() { |
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161 long now = System.currentTimeMillis(); |
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162 for( Iterator<Callable> iter = callableMap.values().iterator(); iter.hasNext(); ) { |
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163 Callable callable = iter.next(); |
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164 if( callable.expires < now ) |
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165 iter.remove(); |
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166 } |
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167 } |
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168 |
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169 public static synchronized Callable globalCallable(LuanState luan,String name,long timeout,LuanTable fns) { |
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170 Callable callable = callableMap.get(name); |
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171 if( callable == null ) { |
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172 sweep(); |
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173 callable = new Callable(luan,fns); |
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174 callableMap.put(name,callable); |
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175 } |
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176 callable.expires = System.currentTimeMillis() + timeout; |
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177 return callable; |
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178 } |
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179 |
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180 public static synchronized void removeGlobalCallable(String name) { |
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181 callableMap.remove(name); |
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182 } |
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183 |
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184 } |