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annotate Platforms/Wasm/WasmDelayedCallExecutor.h @ 431:26b90b110719 am-vsol-upgrade

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added DelayedCallExecutor to avoid using sleep() in C++ that consumes 100% CPU once executed in WASM
author am@osimis.io
date Thu, 29 Nov 2018 19:25:15 +0100
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children 4f2416d519b4
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431
26b90b110719 added DelayedCallExecutor to avoid using sleep() in C++ that consumes 100% CPU once executed in WASM
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1 #pragma once
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2
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3 #include <Framework/Toolbox/IDelayedCallExecutor.h>
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4 #include <Core/OrthancException.h>
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5
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6 namespace OrthancStone
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7 {
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8 class WasmDelayedCallExecutor : public IDelayedCallExecutor
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9 {
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10 private:
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11 static MessageBroker* broker_;
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12
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13 // Private constructor => Singleton design pattern
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14 WasmDelayedCallExecutor(MessageBroker& broker) :
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15 IDelayedCallExecutor(broker)
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16 {
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17 }
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18
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19 public:
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20 static WasmDelayedCallExecutor& GetInstance()
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21 {
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22 if (broker_ == NULL)
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23 {
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24 printf("WasmDelayedCallExecutor::GetInstance(): broker not initialized\n");
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25 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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26 }
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27 static WasmDelayedCallExecutor instance(*broker_);
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28 return instance;
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29 }
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30
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31 static void SetBroker(MessageBroker& broker)
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32 {
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33 broker_ = &broker;
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34 }
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35
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36 virtual void Schedule(MessageHandler<IDelayedCallExecutor::TimeoutMessage>* callback,
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37 unsigned int timeoutInMs = 1000);
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38
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39 };
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40 }