47 lines
1.5 KiB
JavaScript
47 lines
1.5 KiB
JavaScript
//---------------------------------------------------------------------------
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// @syndicate-lang/syntax-test, a demo of Syndicate extensions to JS.
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// Copyright (C) 2016-2018 Tony Garnock-Jones <tonyg@leastfixedpoint.com>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//---------------------------------------------------------------------------
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import { Dataspace } from "@syndicate-lang/core";
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message type Tick();
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spawn named 'ticker' {
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field this.counter = 0;
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on start { console.log('ticker starting'); }
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on stop { console.log('ticker stopping'); }
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on message Tick() {
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this.counter++;
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console.log('tick', new Date(), this.counter);
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if (this.counter < 5) {
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Dataspace.backgroundTask((finish) => {
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setTimeout(Dataspace.wrapExternal(() => {
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<< Tick();
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finish();
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}), 1000);
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});
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}
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}
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on start {
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console.log('sending first tick');
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<< Tick();
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}
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}
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