sealrs 0.13.2

Set of classic asynchronous primitives (Actors, Executors, Futures / Promises)
Documentation 
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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141

//! Reference to instance of some actor. It is an interface for interacting with the internal
//! logic of the actor cell.

use crate::common::tsafe::TSafe;
use crate::actors::actor_cell::ActorCell;
use crate::actors::abstract_actor_ref::{AbstractActorRef, ActorRef, AskTimeoutError};
use crate::actors::actor_path::ActorPath;
use crate::actors::message::Message;
use crate::actors::abstract_actor_system::AbstractActorSystem;
use crate::actors::props::Props;
use crate::actors::ask_actor::AskActor;
use crate::futures::future::WrappedFuture;
use crate::futures::promise::Promise;
use crate::futures::completable_promise::CompletablePromise;
use std::hash::{Hash, Hasher};
use std::fmt;
use std::any::Any;
use std::time::Duration;
use std::sync::{Arc, Mutex};

pub struct LocalActorRef {
    pub cell: TSafe<ActorCell>,
    pub path: TSafe<ActorPath>
}

impl LocalActorRef {

    /// Creates a new reference. This method should never be invoked by application code. This
    /// constructor is used by internal API. Direct use from the user code is prohibited.
    pub fn new(cell: TSafe<ActorCell>, path: TSafe<ActorPath>) -> LocalActorRef {
        LocalActorRef {
            cell,
            path
        }
    }

    fn inner_clone(self: &Self) -> Box<LocalActorRef> {
        Box::new(LocalActorRef {
            cell: self.cell.clone(),
            path: self.path.clone(),
        })
    }
}

impl AbstractActorRef for LocalActorRef {

    /// Send message to the actor behind the reference. In the first argument passed message for
     /// send, and in the second argument specified sender reference. This reference will be injected
     /// to ctx.sender field the actor context object. If sender was does not specified, ctx.sender
     /// will be filled with the deadLetter actor reference. Setting up None as sender reference is
     /// useful in case, when tell operation is
     /// called from outside of the actor system.
     ///
     /// # Examples
     ///
     /// ```
     ///
     /// ```
    fn tell(self: &mut Self, msg: Message, rself: Option<&ActorRef>) {
        let cell_cloned = self.cell.clone();
        let path_cloned = self.path.clone();
        let toref = Box::new(LocalActorRef::new(cell_cloned, path_cloned));
        let mut cell = self.cell.lock().unwrap();
        cell.send(&self.cell, msg, rself.map_or(None, |v| Some((*v).clone())), toref)
    }

    /// Call ask_timeout with default timeout
    fn ask(&mut self, factory: &mut AbstractActorSystem, msg: Message) -> WrappedFuture<Message, AskTimeoutError> {
        self.ask_timeout(factory, Duration::from_secs(3), msg)
    }

    /// Sends a message to the target actor and expects that he respond to that message. Expectation
    /// represent as future, which will be completed with received message or will be failed with
    /// AskTimeoutError, if target actor will not respond with specified timeout.
    ///
    /// # Example
    ///
    /// ```
    /// first.ask(&mut (*ctx.system()), Duration::from_secs(3), msg!(SomeMsg {}))
    ///     .on_complete(|v| {
    ///         // Do something with result (or error)
    ///     });
    /// ```
    ///
    fn ask_timeout(&mut self, factory: &mut AbstractActorSystem, timeout: Duration, msg: Message) -> WrappedFuture<Message, AskTimeoutError> {
        let p: CompletablePromise<Message, AskTimeoutError>
            = CompletablePromise::new();
        let f = p.future();

        let ask_actor = factory.actor_of(Props::new(tsafe!(AskActor::new(p, timeout))), None);
        self.tell(msg, Some(&ask_actor));

        f
    }

    /// Return copy of the actor path object
    fn path(&self) -> ActorPath {
        self.path.lock().unwrap().clone()
    }

    fn cell(self: &mut Self) -> TSafe<ActorCell> {
        self.cell.clone()
    }

    fn clone(self: &Self) -> ActorRef {
        self.inner_clone()
    }

    fn as_any(self: &Self) -> Box<Any> {
        Box::new(self.inner_clone())
    }
}

impl fmt::Display for LocalActorRef {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "ActorRef ({})", self.path.lock().unwrap())
    }
}

/*impl Clone for LocalActorRef {
    fn clone(&self) -> LocalActorRef {
        LocalActorRef {
            cell: self.cell.clone(),
            path: self.path.clone()
        }
    }
}*/

impl PartialEq for LocalActorRef {
    fn eq(&self, other: &Self) -> bool {
        *self.path.lock().unwrap() == *other.path.lock().unwrap()
    }
}

impl Eq for LocalActorRef {}

impl Hash for LocalActorRef {
    fn hash<H: Hasher>(&self, state: &mut H) {
        self.path.lock().unwrap().hash(state);
    }
}