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FairMQ: Implement Take/ReleaseDeviceControl plugin API

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The main function of this API is to make sure only one plugin is
controlling the device state transitions at a time. The
ReleaseDeviceControl() signal is used to implement a function
WaitForPluginsToReleaseDeviceControl() which is used to block the main
thread if a control plugin is used.
This commit is contained in:
Dennis Klein
2017-09-13 21:34:50 +02:00
committed by Mohammad Al-Turany
parent dfb2bac4bc
commit 2af3ae99eb
5 changed files with 143 additions and 16 deletions
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2
fairmq/PluginManager.h
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@@ -77,6 +77,8 @@ class PluginManager
template<typename... Args>
auto EmplacePluginServices(Args&&... args) -> void { fPluginServices = fair::mq::tools::make_unique<PluginServices>(std::forward<Args>(args)...); };
auto WaitForPluginsToReleaseDeviceControl() -> void { fPluginServices->WaitForReleaseDeviceControl(); }
private:
static auto ValidateSearchPath(const boost::filesystem::path&) -> void;