1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
/******************************************************************************
* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright 2011-2018 Dominik Charousset *
* *
* Distributed under the terms and conditions of the BSD 3-Clause License or *
* (at your option) under the terms and conditions of the Boost Software *
* License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE. *
* *
* If you did not receive a copy of the license files, see *
* http://opensource.org/licenses/BSD-3-Clause and *
* http://www.boost.org/LICENSE_1_0.txt. *
******************************************************************************/
#pragma once
#include "caf/fwd.hpp"
#include "caf/config.hpp"
namespace caf {
/// Identifies an execution unit, e.g., a worker thread of the scheduler. By
/// querying its execution unit, an actor can access other context information.
class execution_unit {
public:
explicit execution_unit(actor_system* sys);
execution_unit() = default;
execution_unit(execution_unit&&) = default;
execution_unit& operator=(execution_unit&&) = default;
execution_unit(const execution_unit&) = default;
execution_unit& operator=(const execution_unit&) = default;
virtual ~execution_unit();
/// Enqueues `ptr` to the job list of the execution unit.
/// @warning Must only be called from a {@link resumable} currently
/// executed by this execution unit.
virtual void exec_later(resumable* ptr) = 0;
/// Returns the enclosing actor system.
/// @warning Must be set before the execution unit calls `resume` on an actor.
actor_system& system() const {
CAF_ASSERT(system_ != nullptr);
return *system_;
}
/// Returns a pointer to the proxy factory currently associated to this unit.
proxy_registry* proxy_registry_ptr() {
return proxies_;
}
/// Associated a new proxy factory to this unit.
void proxy_registry_ptr(proxy_registry* ptr) {
proxies_ = ptr;
}
protected:
actor_system* system_ = nullptr;
proxy_registry* proxies_ = nullptr;
};
} // namespace caf
|
