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annotate src/luan/modules/Thread.luan @ 1372:431d5bec3ca4

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add Thread.new_synchronizer
author Franklin Schmidt <fschmidt@gmail.com>
date Mon, 01 Jul 2019 15:37:51 -0600
parents ae2321a09723
children 72b699bad1a4
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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 try = Luan.try or error()
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8 local Time = require "luan:Time.luan"
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9 local Logging = require "luan:logging/Logging.luan"
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10 local logger = Logging.logger "Thread"
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13 local Thread = {}
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14
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15 Thread.sleep = ThreadLuan.sleep
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16
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17 local function safe(fn)
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18 return function()
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19 try {
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20 fn
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21 catch = function(e)
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22 logger.error(e)
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23 end
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24 }
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25 end
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26 end
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27
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28 function Thread.fork(fn)
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29 fn = safe(fn)
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30 ThreadLuan.fork(fn)
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31 end
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32
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33 function Thread.schedule(fn,options)
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34 fn = safe(fn)
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35 options = options or {}
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36 ThreadLuan.schedule(fn,options)
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37 end
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39
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40 local forever = Time.period{years=100}
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41
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42 function Thread.global_callable(name,fns,timeout)
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43 timeout = timeout or forever
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44 local callable = ThreadLuan.globalCallable(name,fns,timeout)
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45 local mt = {}
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46 function mt.__index(_,key)
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47 return function(...)
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48 return callable.call(key,...)
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49 end
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50 end
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51 local tbl = {}
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52 set_metatable(tbl,mt)
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53 return tbl
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54 end
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55
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56 Thread.remove_global_callable = ThreadLuan.removeGlobalCallable
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57
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58 function Thread.global_map(name,timeout)
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59 timeout = timeout or forever
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60
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61 local map = {}
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62 local fns = {}
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63
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64 function fns.get(key)
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65 return map[key]
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66 end
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68 function fns.put(key,value)
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69 map[key] = value
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70 end
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71
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72 local callable = ThreadLuan.globalCallable(name,fns,timeout)
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73 local mt = {}
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74 function mt.__index(_,key)
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75 return callable.call("get",key)
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76 end
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77 function mt.__new_index(_,key,value)
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78 return callable.call("put",key,value)
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79 end
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80 local tbl = {}
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81 set_metatable(tbl,mt)
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82 return tbl
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83 end
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86 local backup_lock = ThreadLuan.backupLock.readLock()
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87 local run_in_lock = ThreadLuan.runInLock
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88
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89 function Thread.run_for_backup(fn)
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90 return run_in_lock(backup_lock,fn)
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91 end
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94 function Thread.new_synchronizer()
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95 local lock = ReentrantLock.new()
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96 return function(fn)
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97 return function(...)
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98 return run_in_lock(lock,fn,...)
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99 end
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100 end
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101 end
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103
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104 return Thread