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switch to asyncAwait

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Boris-Barboris 2017-11-11 15:45:44 +00:00 • committed by Sönke Ludwig
parent 55e7866497
commit 6634cbc645
2 changed files with 23 additions and 13 deletions
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26
source/vibe/internal/async.d
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@ -1,6 +1,6 @@
module vibe.internal.async;
import std.traits : ParameterTypeTuple;
import std.traits : ParameterTypeTuple, ReturnType;
import std.typecons : tuple;
import vibe.core.core : hibernate, switchToTask;
import vibe.core.task : InterruptException, Task;
@ -20,14 +20,23 @@ auto asyncAwait(Callback, alias action, alias cancel)(Duration timeout, string f
{
static struct R {
bool completed = true;
typeof(waitable.results) results;
ParameterTypeTuple!Callback results;
}
R ret;
alias waitable = Waitable!(Callback,
action,
(cb) { ret.completed = false; cancel(cb); },
(ParameterTypeTuple!Callback r) { ret.results = r; }
);
static if (is(ReturnType!action == void)) {
alias waitable = Waitable!(Callback,
action,
(cb) { ret.completed = false; cancel(cb); },
(ParameterTypeTuple!Callback r) { ret.results = r; }
);
}
else {
alias waitable = Waitable!(Callback,
action,
(cb, waitres) { ret.completed = false; cancel(cb, waitres); },
(ParameterTypeTuple!Callback r) { ret.results = r; }
);
}
asyncAwaitAny!(true, waitable)(timeout, func);
return ret;
}
@ -60,7 +69,8 @@ template Waitable(CB, alias WAIT, alias CANCEL, alias DONE)
"CANCEL must be callable with a parameter of type "~CB.stringof);
else
static assert(is(typeof(CANCEL(CB.init, typeof(WAIT(CB.init)).init))),
"CANCEL must be callable with parameters ("~CB.stringof~", "~typeof(WAIT(CB.init)).stringof~")");
"CANCEL must be callable with parameters "~CB.stringof~
" and "~typeof(WAIT(CB.init)).stringof);
static assert(is(typeof(DONE(ParameterTypeTuple!CB.init))),
"DONE must be callable with types "~ParameterTypeTuple!CB.stringof);