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annotate src/luan/modules/Thread.luan @ 1520:d9a5405a3102

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try statement
author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 21 Jun 2020 18:14:13 -0600
parents 78d937870762
children c922446f53aa
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1 require "java"
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2 local ThreadLuan = require "java:luan.modules.ThreadLuan"
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3 local ReentrantLock = require "java:java.util.concurrent.locks.ReentrantLock"
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4 local Luan = require "luan:Luan.luan"
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5 local error = Luan.error
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6 local set_metatable = Luan.set_metatable or error()
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7 local Time = require "luan:Time.luan"
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8 local Logging = require "luan:logging/Logging.luan"
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9 local logger = Logging.logger "Thread"
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10
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11
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12 local Thread = {}
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13
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14 Thread.sleep = ThreadLuan.sleep
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15
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16 local function safe(fn)
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17 return function()
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18 try
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19 fn()
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20 catch e
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21 logger.error(e)
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22 end
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23 end
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24 end
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25
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26 function Thread.fork(fn)
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27 fn = safe(fn)
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28 ThreadLuan.fork(fn)
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29 end
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30
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31 function Thread.schedule(fn,options)
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32 fn = safe(fn)
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33 options = options or {}
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34 ThreadLuan.schedule(fn,options)
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35 end
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36
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37
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38 local forever = Time.period{years=100}
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39
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40 function Thread.global_callable(name,fns,timeout)
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41 timeout = timeout or forever
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42 local callable = ThreadLuan.globalCallable(name,fns,timeout)
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43 local mt = {}
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44 function mt.__index(_,key)
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45 return function(...)
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46 return callable.call(key,...)
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47 end
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48 end
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49 local tbl = {}
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50 set_metatable(tbl,mt)
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51 return tbl
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52 end
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54 Thread.remove_global_callable = ThreadLuan.removeGlobalCallable
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55
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56 function Thread.global_map(name,timeout)
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57 timeout = timeout or forever
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58
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59 local map = {}
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60 local fns = {}
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61
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62 function fns.get(key)
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63 return map[key]
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64 end
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65
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66 function fns.put(key,value)
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67 map[key] = value
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68 end
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69
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70 local callable = ThreadLuan.globalCallable(name,fns,timeout)
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71 local mt = {}
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72 function mt.__index(_,key)
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73 return callable.call("get",key)
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74 end
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75 function mt.__new_index(_,key,value)
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76 return callable.call("put",key,value)
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77 end
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78 local tbl = {}
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79 set_metatable(tbl,mt)
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80 return tbl
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81 end
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82
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83
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84 local default_time_out = Time.period{minutes=10}
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85 local run_in_lock = ThreadLuan.runInLock
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86 local get_lock = ThreadLuan.getLock
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87
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88 function Thread.synchronized(fn,key,time_out)
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89 time_out = time_out or default_time_out
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90 local lock = get_lock(key)
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91 return function(...)
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92 return run_in_lock(lock,time_out,fn,...)
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93 end
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94 end
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95
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96
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97 -- remove
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98 function Thread.new_synchronizer()
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99 local lock = ReentrantLock.new()
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100 return function(fn)
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101 return function(...)
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102 return run_in_lock(lock,default_time_out,fn,...)
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103 end
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104 end
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105 end
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107
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108 return Thread