diff options
Diffstat (limited to 'src/mbgl/actor')
| -rw-r--r-- | src/mbgl/actor/actor.hpp | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/src/mbgl/actor/actor.hpp b/src/mbgl/actor/actor.hpp index 281bbdaed1..810114c513 100644 --- a/src/mbgl/actor/actor.hpp +++ b/src/mbgl/actor/actor.hpp @@ -22,12 +22,6 @@ namespace mbgl { to R is *not* guaranteed (and can't be: S1 and S2 may be acting asynchronously with respect to each other). - Construction and destruction of an actor is currently synchronous: the corresponding `O` - object is constructed synchronously by the `Actor` constructor, and destructed synchronously - by the `~Actor` destructor, after ensuring that the `O` is not currently receiving an - asynchronous message. (Construction and destruction may change to be asynchronous in the - future.) - An `Actor<O>` can be converted to an `ActorRef<O>`, a non-owning value object representing a (weak) reference to the actor. Messages can be sent via the `Ref` as well. @@ -38,6 +32,13 @@ namespace mbgl { the lifetime of the owning Actor, and sending a message to a `Ref` whose `Actor` has died is a no-op. (In the future, a dead-letters queue or log may be implemented.) + Construction and destruction of an actor is currently synchronous: the corresponding `O` + object is constructed synchronously by the `Actor` constructor, and destructed synchronously + by the `~Actor` destructor, after ensuring that the `O` is not currently receiving an + asynchronous message. (Construction and destruction may change to be asynchronous in the + future.) The constructor of `O` is passed an `ActorRef<O>` referring to itself (which it + can use to self-send messages), followed by the forwarded arguments passed to `Actor<O>`. + Please don't send messages that contain shared pointers or references. That subverts the purpose of the actor model: prohibiting direct concurrent access to shared state. */ |