Add more convenient Task creation API

1 files changed, 22 insertions, 0 deletions

diff --git a/src/server/Task.hpp b/src/server/Task.hpp
index 2cdad71b..22f72997 100644
--- a/src/server/Task.hpp
+++ b/src/server/Task.hpp
@@ -38,6 +38,17 @@ public:
 		PARALLEL     ///< Elements may be run in any order in parallel
 	};
 
+	explicit Task(BlockImpl* block)
+		: _block(block)
+		, _mode(Mode::SINGLE)
+		, _done_end(0)
+		, _next(0)
+		, _done(false)
+	{
+		assert(block);
+	}
+
+
 	Task(Mode mode, BlockImpl* block = nullptr)
 		: _block(block)
 		, _mode(mode)
@@ -83,11 +94,22 @@ public:
 	/** Steal a child task from this task (succeeds for PARALLEL only). */
 	Task* steal(RunContext& context);
 
+	/** Return the child task at the front of this task. */
+	Task& front() const {
+		return *_children.front();
+	}
+
 	/** Prepend a child to this task. */
 	void push_front(Task&& task) {
 		_children.emplace_front(std::unique_ptr<Task>(new Task(std::move(task))));
 	}
 
+	/** Prepend a child to this task. */
+	template<typename... Args>
+	void emplace_front(Args... args) {
+		_children.emplace_front(std::unique_ptr<Task>(new Task(std::forward<Args>(args)...)));
+	}
+
 	Mode       mode()  const { return _mode; }
 	BlockImpl* block() const { return _block; }
 	bool       done()  const { return _done; }