namespace webrtc { // Interface for controlling time progress. This allows us to execute test code // in either real time or simulated time by using different implementation of // this interface. class TimeController { public: virtual ~TimeController() = default; // Provides a clock instance that follows implementation defined time // progress. virtual Clock* GetClock() = 0; // The returned factory will created task queues that runs in implementation // defined time domain. virtual TaskQueueFactory* GetTaskQueueFactory() = 0; // Simple helper to create an owned factory that can be used as a parameter // for PeerConnectionFactory. Note that this might depend on the underlying // time controller and therfore must be destroyed before the time controller // is destroyed.
std::unique_ptr<TaskQueueFactory> CreateTaskQueueFactory();
// Creates an Thread instance. If `socket_server` is nullptr, a // default noop socket server is created. Returned thread is not null and // started. virtual std::unique_ptr<Thread> CreateThread( const std::string& name,
std::unique_ptr<SocketServer> socket_server = nullptr) = 0;
// Creates a Thread instance that uses the provided `socket_server`. // The `socket_server` must outlive the returned thread. virtual std::unique_ptr<Thread> CreateThreadWithSocketServer(
absl::string_view name,
SocketServer* socket_server) = 0;
// Creates an Thread instance that ensure that it's set as the current // thread. virtual Thread* GetMainThread() = 0; // Allow task queues and process threads created by this instance to execute // for the given `duration`. virtualvoid AdvanceTime(TimeDelta duration) = 0;
// Waits until condition() == true, polling condition() in small time // intervals. // Returns true if condition() was evaluated to true before `max_duration` // elapsed and false otherwise. bool Wait(FunctionView<bool()> condition,
TimeDelta max_duration = TimeDelta::Seconds(5));
};
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