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cpp-libs
Actor Framework
Commits
f42f143e
Commit
f42f143e
authored
Mar 04, 2015
by
Dominik Charousset
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Provide abstraction for pool of worker actors
parent
d479260b
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10 changed files
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548 additions
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11 deletions
+548
-11
libcaf_core/CMakeLists.txt
libcaf_core/CMakeLists.txt
+1
-0
libcaf_core/caf/actor_pool.hpp
libcaf_core/caf/actor_pool.hpp
+136
-0
libcaf_core/caf/all.hpp
libcaf_core/caf/all.hpp
+1
-0
libcaf_core/caf/atom.hpp
libcaf_core/caf/atom.hpp
+5
-0
libcaf_core/caf/fwd.hpp
libcaf_core/caf/fwd.hpp
+1
-0
libcaf_core/caf/locks.hpp
libcaf_core/caf/locks.hpp
+16
-10
libcaf_core/src/actor_pool.cpp
libcaf_core/src/actor_pool.cpp
+201
-0
unit_testing/CMakeLists.txt
unit_testing/CMakeLists.txt
+1
-0
unit_testing/test.cpp
unit_testing/test.cpp
+1
-1
unit_testing/test_actor_pool.cpp
unit_testing/test_actor_pool.cpp
+185
-0
No files found.
libcaf_core/CMakeLists.txt
View file @
f42f143e
...
@@ -25,6 +25,7 @@ set (LIBCAF_CORE_SRCS
...
@@ -25,6 +25,7 @@ set (LIBCAF_CORE_SRCS
src/actor_companion.cpp
src/actor_companion.cpp
src/actor_namespace.cpp
src/actor_namespace.cpp
src/actor_ostream.cpp
src/actor_ostream.cpp
src/actor_pool.cpp
src/actor_proxy.cpp
src/actor_proxy.cpp
src/actor_registry.cpp
src/actor_registry.cpp
src/attachable.cpp
src/attachable.cpp
...
...
libcaf_core/caf/actor_pool.hpp
0 → 100644
View file @
f42f143e
/******************************************************************************
* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright (C) 2011 - 2015 *
* Dominik Charousset <dominik.charousset (at) haw-hamburg.de> *
* *
* 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. *
******************************************************************************/
#ifndef CAF_ACTOR_POOL_HPP
#define CAF_ACTOR_POOL_HPP
#include <atomic>
#include <random>
#include <vector>
#include <functional>
#include "caf/locks.hpp"
#include "caf/actor.hpp"
#include "caf/abstract_actor.hpp"
#include "caf/mailbox_element.hpp"
#include "caf/detail/shared_spinlock.hpp"
namespace
caf
{
/**
* An actor poool is a lightweight abstraction for a set of workers.
* The pool itself is an actor, meaning that it can be passed
* around in an actor system to hide the actual set of workers.
*
* After construction, new workers can be added via `{'SYS', 'PUT', actor}`
* messages, e.g., `send(my_pool, sys_atom::value, put_atom::value, worker)`.
* `{'SYS', 'DELETE', actor}` messages remove a worker from the set,
* whereas `{'SYS', 'GET'}` returns a `vector<actor>` containing all workers.
*
* Note that the pool *always* sends exit messages to all of its workers
* when forced to quit. The pool monitors all of its workers. Messages queued
* up in a worker's mailbox are lost, i.e., the pool itself does not buffer
* and resend messages. Advanced caching or resend strategies can be
* implemented in a policy.
*
* It is wort mentioning that the pool is *not* an event-based actor.
* Neither does it live in its own thread. Messages are dispatched immediately
* during the enqueue operation. Any user-defined policy thus has to dispatch
* messages with as little overhead as possible, because the dispatching
* runs in the context of the sender.
*/
class
actor_pool
:
public
abstract_actor
{
public:
using
uplock
=
upgrade_lock
<
detail
::
shared_spinlock
>
;
using
actor_vec
=
std
::
vector
<
actor
>
;
using
factory
=
std
::
function
<
actor
()
>
;
using
policy
=
std
::
function
<
void
(
uplock
&
,
const
actor_vec
&
,
mailbox_element_ptr
&
,
execution_unit
*
)
>
;
/**
* Default policy class implementing simple round robin dispatching.
*/
class
round_robin
{
public:
round_robin
();
round_robin
(
const
round_robin
&
);
void
operator
()(
uplock
&
,
const
actor_vec
&
,
mailbox_element_ptr
&
,
execution_unit
*
);
private:
std
::
atomic
<
size_t
>
m_pos
;
};
/**
* Default policy class implementing broadcast dispatching.
*/
class
broadcast
{
public:
void
operator
()(
uplock
&
,
const
actor_vec
&
,
mailbox_element_ptr
&
,
execution_unit
*
);
};
/**
* Default policy class implementing random dispatching.
*/
class
random
{
public:
random
();
random
(
const
random
&
);
void
operator
()(
uplock
&
,
const
actor_vec
&
,
mailbox_element_ptr
&
,
execution_unit
*
);
private:
std
::
random_device
m_rd
;
};
~
actor_pool
();
/**
* Returns an actor pool without workers using the dispatch policy `pol`.
*/
static
actor
make
(
policy
pol
);
/**
* Returns an actor pool with `n` workers created by the factory
* function `fac` using the dispatch policy `pol`.
*/
static
actor
make
(
size_t
n
,
factory
fac
,
policy
pol
);
void
enqueue
(
const
actor_addr
&
sender
,
message_id
mid
,
message
content
,
execution_unit
*
host
)
override
;
void
enqueue
(
mailbox_element_ptr
what
,
execution_unit
*
host
)
override
;
private:
actor_pool
();
bool
filter
(
upgrade_lock
<
detail
::
shared_spinlock
>&
,
const
actor_addr
&
sender
,
message_id
mid
,
const
message
&
content
,
execution_unit
*
host
);
detail
::
shared_spinlock
m_mtx
;
std
::
vector
<
actor
>
m_workers
;
policy
m_policy
;
uint32_t
m_planned_reason
;
};
}
// namespace caf
#endif // CAF_ACTOR_POOL_HPP
libcaf_core/caf/all.hpp
View file @
f42f143e
...
@@ -45,6 +45,7 @@
...
@@ -45,6 +45,7 @@
#include "caf/spawn_fwd.hpp"
#include "caf/spawn_fwd.hpp"
#include "caf/to_string.hpp"
#include "caf/to_string.hpp"
#include "caf/actor_addr.hpp"
#include "caf/actor_addr.hpp"
#include "caf/actor_pool.hpp"
#include "caf/attachable.hpp"
#include "caf/attachable.hpp"
#include "caf/message_id.hpp"
#include "caf/message_id.hpp"
#include "caf/replies_to.hpp"
#include "caf/replies_to.hpp"
...
...
libcaf_core/caf/atom.hpp
View file @
f42f143e
...
@@ -94,6 +94,11 @@ using ok_atom = atom_constant<atom("OK")>;
...
@@ -94,6 +94,11 @@ using ok_atom = atom_constant<atom("OK")>;
*/
*/
using
error_atom
=
atom_constant
<
atom
(
"ERROR"
)
>
;
using
error_atom
=
atom_constant
<
atom
(
"ERROR"
)
>
;
/**
* Generic 'SYS' atom.
*/
using
sys_atom
=
atom_constant
<
atom
(
"SYS"
)
>
;
}
// namespace caf
}
// namespace caf
#endif // CAF_ATOM_HPP
#endif // CAF_ATOM_HPP
libcaf_core/caf/fwd.hpp
View file @
f42f143e
...
@@ -41,6 +41,7 @@ class duration;
...
@@ -41,6 +41,7 @@ class duration;
class
behavior
;
class
behavior
;
class
resumable
;
class
resumable
;
class
actor_addr
;
class
actor_addr
;
class
actor_pool
;
class
message_id
;
class
message_id
;
class
local_actor
;
class
local_actor
;
class
actor_proxy
;
class
actor_proxy
;
...
...
libcaf_core/caf/locks.hpp
View file @
f42f143e
...
@@ -29,9 +29,7 @@ using unique_lock = std::unique_lock<Lockable>;
...
@@ -29,9 +29,7 @@ using unique_lock = std::unique_lock<Lockable>;
template
<
class
SharedLockable
>
template
<
class
SharedLockable
>
class
shared_lock
{
class
shared_lock
{
public:
public:
using
lockable
=
SharedLockable
;
using
lockable
=
SharedLockable
;
explicit
shared_lock
(
lockable
&
arg
)
:
m_lockable
(
&
arg
)
{
explicit
shared_lock
(
lockable
&
arg
)
:
m_lockable
(
&
arg
)
{
...
@@ -39,13 +37,20 @@ class shared_lock {
...
@@ -39,13 +37,20 @@ class shared_lock {
}
}
~
shared_lock
()
{
~
shared_lock
()
{
if
(
m_lockable
)
m_lockable
->
unlock_shared
();
unlock
();
}
}
bool
owns_lock
()
const
{
bool
owns_lock
()
const
{
return
m_lockable
!=
nullptr
;
return
m_lockable
!=
nullptr
;
}
}
void
unlock
()
{
if
(
m_lockable
)
{
m_lockable
->
unlock_shared
();
m_lockable
=
nullptr
;
}
}
lockable
*
release
()
{
lockable
*
release
()
{
auto
result
=
m_lockable
;
auto
result
=
m_lockable
;
m_lockable
=
nullptr
;
m_lockable
=
nullptr
;
...
@@ -53,9 +58,7 @@ class shared_lock {
...
@@ -53,9 +58,7 @@ class shared_lock {
}
}
private:
private:
lockable
*
m_lockable
;
lockable
*
m_lockable
;
};
};
template
<
class
SharedLockable
>
template
<
class
SharedLockable
>
...
@@ -63,9 +66,7 @@ using upgrade_lock = shared_lock<SharedLockable>;
...
@@ -63,9 +66,7 @@ using upgrade_lock = shared_lock<SharedLockable>;
template
<
class
UpgradeLockable
>
template
<
class
UpgradeLockable
>
class
upgrade_to_unique_lock
{
class
upgrade_to_unique_lock
{
public:
public:
using
lockable
=
UpgradeLockable
;
using
lockable
=
UpgradeLockable
;
template
<
class
LockType
>
template
<
class
LockType
>
...
@@ -75,17 +76,22 @@ class upgrade_to_unique_lock {
...
@@ -75,17 +76,22 @@ class upgrade_to_unique_lock {
}
}
~
upgrade_to_unique_lock
()
{
~
upgrade_to_unique_lock
()
{
if
(
m_lockable
)
m_lockable
->
unlock
();
unlock
();
}
}
bool
owns_lock
()
const
{
bool
owns_lock
()
const
{
return
m_lockable
!=
nullptr
;
return
m_lockable
!=
nullptr
;
}
}
private:
void
unlock
()
{
if
(
m_lockable
)
{
m_lockable
->
unlock
();
m_lockable
=
nullptr
;
}
}
private:
lockable
*
m_lockable
;
lockable
*
m_lockable
;
};
};
}
// namespace caf
}
// namespace caf
...
...
libcaf_core/src/actor_pool.cpp
0 → 100644
View file @
f42f143e
/******************************************************************************
* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright (C) 2011 - 2015 *
* Dominik Charousset <dominik.charousset (at) haw-hamburg.de> *
* *
* 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. *
******************************************************************************/
#include "caf/actor_pool.hpp"
#include "caf/send.hpp"
#include "caf/default_attachable.hpp"
#include "caf/detail/sync_request_bouncer.hpp"
namespace
caf
{
actor_pool
::
round_robin
::
round_robin
()
:
m_pos
(
0
)
{
// nop
}
actor_pool
::
round_robin
::
round_robin
(
const
round_robin
&
)
:
m_pos
(
0
)
{
// nop
}
void
actor_pool
::
round_robin
::
operator
()(
uplock
&
guard
,
const
actor_vec
&
vec
,
mailbox_element_ptr
&
ptr
,
execution_unit
*
host
)
{
CAF_REQUIRE
(
!
vec
.
empty
());
actor
selected
=
vec
[
m_pos
++
%
vec
.
size
()];
guard
.
unlock
();
selected
->
enqueue
(
std
::
move
(
ptr
),
host
);
}
void
actor_pool
::
broadcast
::
operator
()(
uplock
&
,
const
actor_vec
&
vec
,
mailbox_element_ptr
&
ptr
,
execution_unit
*
host
)
{
CAF_REQUIRE
(
!
vec
.
empty
());
for
(
size_t
i
=
1
;
i
<
vec
.
size
();
++
i
)
{
vec
[
i
]
->
enqueue
(
ptr
->
sender
,
ptr
->
mid
,
ptr
->
msg
,
host
);
}
vec
.
front
()
->
enqueue
(
std
::
move
(
ptr
),
host
);
}
actor_pool
::
random
::
random
()
{
// nop
}
actor_pool
::
random
::
random
(
const
random
&
)
{
// nop
}
void
actor_pool
::
random
::
operator
()(
uplock
&
guard
,
const
actor_vec
&
vec
,
mailbox_element_ptr
&
ptr
,
execution_unit
*
host
)
{
std
::
uniform_int_distribution
<
size_t
>
dis
(
0
,
vec
.
size
()
-
1
);
upgrade_to_unique_lock
<
detail
::
shared_spinlock
>
unique_guard
{
guard
};
actor
selected
=
vec
[
dis
(
m_rd
)];
unique_guard
.
unlock
();
selected
->
enqueue
(
std
::
move
(
ptr
),
host
);
}
actor_pool
::~
actor_pool
()
{
// nop
}
actor
actor_pool
::
make
(
policy
pol
)
{
intrusive_ptr
<
actor_pool
>
ptr
;
ptr
.
reset
(
new
actor_pool
);
ptr
->
m_policy
=
std
::
move
(
pol
);
return
actor_cast
<
actor
>
(
ptr
);
}
actor
actor_pool
::
make
(
size_t
num_workers
,
factory
fac
,
policy
pol
)
{
auto
res
=
make
(
std
::
move
(
pol
));
auto
ptr
=
static_cast
<
actor_pool
*>
(
actor_cast
<
abstract_actor
*>
(
res
));
auto
res_addr
=
ptr
->
address
();
for
(
size_t
i
=
0
;
i
<
num_workers
;
++
i
)
{
auto
worker
=
fac
();
worker
->
attach
(
default_attachable
::
make_monitor
(
res_addr
));
ptr
->
m_workers
.
push_back
(
worker
);
}
return
res
;
}
void
actor_pool
::
enqueue
(
const
actor_addr
&
sender
,
message_id
mid
,
message
content
,
execution_unit
*
eu
)
{
upgrade_lock
<
detail
::
shared_spinlock
>
guard
{
m_mtx
};
if
(
filter
(
guard
,
sender
,
mid
,
content
,
eu
))
{
return
;
}
auto
ptr
=
mailbox_element
::
make
(
sender
,
mid
,
std
::
move
(
content
));
m_policy
(
guard
,
m_workers
,
ptr
,
eu
);
}
void
actor_pool
::
enqueue
(
mailbox_element_ptr
what
,
execution_unit
*
eu
)
{
upgrade_lock
<
detail
::
shared_spinlock
>
guard
{
m_mtx
};
if
(
filter
(
guard
,
what
->
sender
,
what
->
mid
,
what
->
msg
,
eu
))
{
return
;
}
m_policy
(
guard
,
m_workers
,
what
,
eu
);
}
actor_pool
::
actor_pool
()
:
m_planned_reason
(
caf
::
exit_reason
::
not_exited
)
{
is_registered
(
true
);
}
bool
actor_pool
::
filter
(
upgrade_lock
<
detail
::
shared_spinlock
>&
guard
,
const
actor_addr
&
sender
,
message_id
mid
,
const
message
&
msg
,
execution_unit
*
eu
)
{
auto
rsn
=
m_planned_reason
;
if
(
rsn
!=
caf
::
exit_reason
::
not_exited
)
{
guard
.
unlock
();
if
(
mid
.
valid
())
{
detail
::
sync_request_bouncer
srq
{
rsn
};
srq
(
sender
,
mid
);
}
return
true
;
}
if
(
msg
.
match_elements
<
exit_msg
>
())
{
std
::
vector
<
actor
>
workers
;
// send exit messages *always* to all workers and clear vector afterwards
// but first swap m_workers out of the critical section
upgrade_to_unique_lock
<
detail
::
shared_spinlock
>
unique_guard
{
guard
};
m_workers
.
swap
(
workers
);
m_planned_reason
=
msg
.
get_as
<
exit_msg
>
(
0
).
reason
;
unique_guard
.
unlock
();
for
(
auto
&
w
:
workers
)
{
anon_send
(
w
,
msg
);
}
// we can safely run our cleanup code here
// because abstract_actor has its own lock
cleanup
(
m_planned_reason
);
is_registered
(
false
);
return
true
;
}
if
(
msg
.
match_elements
<
down_msg
>
())
{
// remove failed worker from pool
auto
&
dm
=
msg
.
get_as
<
down_msg
>
(
0
);
upgrade_to_unique_lock
<
detail
::
shared_spinlock
>
unique_guard
{
guard
};
auto
last
=
m_workers
.
end
();
auto
i
=
std
::
find
(
m_workers
.
begin
(),
m_workers
.
end
(),
dm
.
source
);
if
(
i
!=
last
)
{
m_workers
.
erase
(
i
);
}
return
true
;
}
if
(
msg
.
match_elements
<
sys_atom
,
put_atom
,
actor
>
())
{
auto
&
worker
=
msg
.
get_as
<
actor
>
(
2
);
if
(
worker
==
invalid_actor
)
{
return
true
;
}
worker
->
attach
(
default_attachable
::
make_monitor
(
address
()));
upgrade_to_unique_lock
<
detail
::
shared_spinlock
>
unique_guard
{
guard
};
m_workers
.
push_back
(
worker
);
return
true
;
}
if
(
msg
.
match_elements
<
sys_atom
,
delete_atom
,
actor
>
())
{
upgrade_to_unique_lock
<
detail
::
shared_spinlock
>
unique_guard
{
guard
};
auto
&
what
=
msg
.
get_as
<
actor
>
(
2
);
auto
last
=
m_workers
.
end
();
auto
i
=
std
::
find
(
m_workers
.
begin
(),
last
,
what
);
if
(
i
!=
last
)
{
m_workers
.
erase
(
i
);
}
return
true
;
}
if
(
msg
.
match_elements
<
sys_atom
,
get_atom
>
())
{
auto
cpy
=
m_workers
;
guard
.
unlock
();
actor_cast
<
abstract_actor
*>
(
sender
)
->
enqueue
(
invalid_actor_addr
,
mid
.
response_id
(),
make_message
(
std
::
move
(
cpy
)),
eu
);
return
true
;
}
if
(
m_workers
.
empty
())
{
guard
.
unlock
();
if
(
sender
!=
invalid_actor_addr
&&
mid
.
valid
())
{
// tell client we have ignored this sync message by sending
// and empty message back
auto
ptr
=
actor_cast
<
abstract_actor_ptr
>
(
sender
);
ptr
->
enqueue
(
invalid_actor_addr
,
mid
.
response_id
(),
message
{},
eu
);
}
return
true
;
}
return
false
;
}
}
// namespace caf
unit_testing/CMakeLists.txt
View file @
f42f143e
...
@@ -44,6 +44,7 @@ add_unit_test(typed_remote_actor)
...
@@ -44,6 +44,7 @@ add_unit_test(typed_remote_actor)
add_unit_test
(
unpublish
)
add_unit_test
(
unpublish
)
add_unit_test
(
optional
)
add_unit_test
(
optional
)
add_unit_test
(
fixed_stack_actor
)
add_unit_test
(
fixed_stack_actor
)
add_unit_test
(
actor_pool
)
if
(
NOT WIN32
)
if
(
NOT WIN32
)
add_unit_test
(
profiled_coordinator
)
add_unit_test
(
profiled_coordinator
)
endif
()
endif
()
unit_testing/test.cpp
View file @
f42f143e
...
@@ -20,7 +20,7 @@ class watchdog {
...
@@ -20,7 +20,7 @@ class watchdog {
watchdog
()
{
watchdog
()
{
m_thread
=
thread
([
&
]
{
m_thread
=
thread
([
&
]
{
auto
tp
=
chrono
::
high_resolution_clock
::
now
()
+
chrono
::
seconds
(
10
);
auto
tp
=
chrono
::
high_resolution_clock
::
now
()
+
chrono
::
seconds
(
10
);
unique_lock
<
mutex
>
guard
{
m_mtx
};
std
::
unique_lock
<
mutex
>
guard
{
m_mtx
};
while
(
!
m_canceled
while
(
!
m_canceled
&&
m_cv
.
wait_until
(
guard
,
tp
)
!=
cv_status
::
timeout
)
{
&&
m_cv
.
wait_until
(
guard
,
tp
)
!=
cv_status
::
timeout
)
{
// spin
// spin
...
...
unit_testing/test_actor_pool.cpp
0 → 100644
View file @
f42f143e
/******************************************************************************
* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright (C) 2011 - 2015 *
* Dominik Charousset <dominik.charousset (at) haw-hamburg.de> *
* *
* 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. *
******************************************************************************/
#include "test.hpp"
#include "caf/all.hpp"
using
namespace
caf
;
namespace
{
std
::
atomic
<
size_t
>
s_ctors
;
std
::
atomic
<
size_t
>
s_dtors
;
}
// namespace <anonymous>
class
worker
:
public
event_based_actor
{
public:
worker
();
~
worker
();
behavior
make_behavior
()
override
;
};
worker
::
worker
()
{
++
s_ctors
;
}
worker
::~
worker
()
{
++
s_dtors
;
}
behavior
worker
::
make_behavior
()
{
return
{
[](
int
x
,
int
y
)
{
return
x
+
y
;
}
};
}
actor
spawn_worker
()
{
return
spawn
<
worker
>
();
}
void
test_actor_pool
()
{
scoped_actor
self
;
auto
w
=
actor_pool
::
make
(
5
,
spawn_worker
,
actor_pool
::
round_robin
{});
self
->
monitor
(
w
);
self
->
send
(
w
,
sys_atom
::
value
,
put_atom
::
value
,
spawn_worker
());
std
::
vector
<
actor_addr
>
workers
;
for
(
int
i
=
0
;
i
<
6
;
++
i
)
{
self
->
sync_send
(
w
,
i
,
i
).
await
(
[
&
](
int
res
)
{
CAF_CHECK_EQUAL
(
res
,
i
+
i
);
auto
sender
=
self
->
current_sender
();
self
->
monitor
(
sender
);
workers
.
push_back
(
sender
);
}
);
}
CAF_CHECK
(
workers
.
size
()
==
6
);
CAF_CHECK
(
std
::
unique
(
workers
.
begin
(),
workers
.
end
())
==
workers
.
end
());
auto
is_invalid
=
[](
const
actor_addr
&
addr
)
{
return
addr
==
invalid_actor_addr
;
};
CAF_CHECK
(
std
::
none_of
(
workers
.
begin
(),
workers
.
end
(),
is_invalid
));
self
->
sync_send
(
w
,
sys_atom
::
value
,
get_atom
::
value
).
await
(
[
&
](
std
::
vector
<
actor
>&
ws
)
{
std
::
sort
(
workers
.
begin
(),
workers
.
end
());
std
::
sort
(
ws
.
begin
(),
ws
.
end
());
CAF_CHECK
(
workers
.
size
()
==
ws
.
size
()
&&
std
::
equal
(
workers
.
begin
(),
workers
.
end
(),
ws
.
begin
()));
}
);
anon_send_exit
(
workers
.
back
(),
exit_reason
::
user_shutdown
);
self
->
receive
(
after
(
std
::
chrono
::
milliseconds
(
25
))
>>
[]
{
// wait some time to give the pool time to remove the failed worker
}
);
self
->
receive
(
[
&
](
const
down_msg
&
dm
)
{
CAF_CHECK
(
dm
.
source
==
workers
.
back
());
workers
.
pop_back
();
// check whether actor pool removed failed worker
self
->
sync_send
(
w
,
sys_atom
::
value
,
get_atom
::
value
).
await
(
[
&
](
std
::
vector
<
actor
>&
ws
)
{
std
::
sort
(
ws
.
begin
(),
ws
.
end
());
CAF_CHECK
(
workers
.
size
()
==
ws
.
size
()
&&
std
::
equal
(
workers
.
begin
(),
workers
.
end
(),
ws
.
begin
()));
}
);
},
after
(
std
::
chrono
::
milliseconds
(
250
))
>>
[]
{
CAF_PRINTERR
(
"didn't receive a down message"
);
}
);
CAF_CHECKPOINT
();
self
->
send_exit
(
w
,
exit_reason
::
user_shutdown
);
for
(
int
i
=
0
;
i
<
6
;
++
i
)
{
self
->
receive
(
[
&
](
const
down_msg
&
dm
)
{
auto
last
=
workers
.
end
();
auto
src
=
dm
.
source
;
CAF_CHECK
(
src
!=
invalid_actor_addr
);
auto
pos
=
std
::
find
(
workers
.
begin
(),
last
,
src
);
CAF_CHECK
(
pos
!=
last
||
src
==
w
);
if
(
pos
!=
last
)
{
workers
.
erase
(
pos
);
}
},
after
(
std
::
chrono
::
milliseconds
(
250
))
>>
[]
{
CAF_PRINTERR
(
"didn't receive a down message"
);
}
);
}
}
void
test_broadcast_actor_pool
()
{
scoped_actor
self
;
auto
spawn5
=
[]()
{
return
actor_pool
::
make
(
5
,
spawn_worker
,
actor_pool
::
broadcast
{});
};
auto
w
=
actor_pool
::
make
(
5
,
spawn5
,
actor_pool
::
broadcast
{});
self
->
send
(
w
,
1
,
2
);
std
::
vector
<
int
>
results
;
int
i
=
0
;
self
->
receive_for
(
i
,
25
)(
[
&
](
int
res
)
{
results
.
push_back
(
res
);
},
after
(
std
::
chrono
::
milliseconds
(
250
))
>>
[]
{
CAF_PRINTERR
(
"didn't receive a result"
);
}
);
CAF_CHECK_EQUAL
(
results
.
size
(),
25
);
CAF_CHECK
(
std
::
all_of
(
results
.
begin
(),
results
.
end
(),
[](
int
res
)
{
return
res
==
3
;
}));
self
->
send_exit
(
w
,
exit_reason
::
user_shutdown
);
self
->
await_all_other_actors_done
();
}
void
test_random_actor_pool
()
{
scoped_actor
self
;
auto
w
=
actor_pool
::
make
(
5
,
spawn_worker
,
actor_pool
::
random
{});
for
(
int
i
=
0
;
i
<
5
;
++
i
)
{
self
->
sync_send
(
w
,
1
,
2
).
await
(
[
&
](
int
res
)
{
CAF_CHECK_EQUAL
(
res
,
3
);
},
after
(
std
::
chrono
::
milliseconds
(
250
))
>>
[]
{
CAF_PRINTERR
(
"didn't receive a down message"
);
}
);
}
self
->
send_exit
(
w
,
exit_reason
::
user_shutdown
);
self
->
await_all_other_actors_done
();
}
int
main
()
{
CAF_TEST
(
test_actor_pool
);
test_actor_pool
();
test_broadcast_actor_pool
();
test_random_actor_pool
();
await_all_actors_done
();
shutdown
();
CAF_CHECK_EQUAL
(
s_dtors
.
load
(),
s_ctors
.
load
());
return
CAF_TEST_RESULT
();
}
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