/*
- * Copyright 2017 Facebook, Inc.
+ * Copyright 2014-present Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
/// threadsafe.
class Executor {
public:
- virtual ~Executor() = default;
+ // Workaround for a linkage problem with explicitly defaulted dtor t22914621
+ virtual ~Executor() {}
/// Enqueue a function to executed by this executor. This and all
/// variants must be threadsafe.
static const int8_t MID_PRI = 0;
static const int8_t HI_PRI = SCHAR_MAX;
- /// A convenience function for shared_ptr to legacy functors.
- ///
- /// Sometimes you have a functor that is move-only, and therefore can't be
- /// converted to a std::function (e.g. std::packaged_task). In that case,
- /// wrap it in a shared_ptr (or maybe folly::MoveWrapper) and use this.
- template <class P>
- void addPtr(P fn) {
- this->add([fn]() mutable { (*fn)(); });
- }
-
class KeepAlive {
public:
KeepAlive() {}
return executor_ != nullptr;
}
+ Executor* get() const {
+ return executor_.get();
+ }
+
private:
friend class Executor;
explicit KeepAlive(folly::Executor* executor) : executor_(executor) {}
};
/// Returns a keep-alive token which guarantees that Executor will keep
- /// processing tasks until the token is released. keep-alive token can only
- /// be destroyed from within the task, scheduled to be run on an executor.
+ /// processing tasks until the token is released.
///
/// If executor does not support keep-alive functionality - dummy token will
/// be returned.
}
protected:
+ virtual void keepAliveAcquire();
virtual void keepAliveRelease();
KeepAlive makeKeepAlive() {