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Issue 1191373005: Revert of Add d8 API for spawning function on a new thread (Second try) (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 6 months ago
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1 // Copyright 2015 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28 // Test the Worker API of d8. This test only makes sense with d8. A Worker
29 // spawns a new OS thread and isolate, and runs it concurrently with the
30 // current running thread.
31
32 function f() {
33 postMessage("Starting worker");
34 // Set a global variable; should not be visible outside of the worker's
35 // context.
36 foo = 100;
37
38 var c = 0;
39 onmessage = function(m) {
40 switch (c++) {
41 case 0:
42 if (m !== undefined) throw new Error("undefined");
43 break;
44 case 1:
45 if (m !== null) throw new Error("null");
46 break;
47 case 2:
48 if (m !== true) throw new Error("true");
49 break;
50 case 3:
51 if (m !== false) throw new Error("false");
52 break;
53 case 4:
54 if (m !== 100) throw new Error("Number");
55 break;
56 case 5:
57 if (m !== "hi") throw new Error("String");
58 break;
59 case 6:
60 if (JSON.stringify(m) !== '[4,true,"bye"]') throw new Error("Array");
61 break;
62 case 7:
63 if (JSON.stringify(m) !== '{"a":1,"b":2.5,"c":"three"}')
64 throw new Error("Object");
65 break;
66 case 8:
67 var ab = m;
68 var t = new Uint32Array(ab);
69 if (ab.byteLength !== 16)
70 throw new Error("ArrayBuffer clone byteLength");
71 for (var i = 0; i < 4; ++i)
72 if (t[i] !== i)
73 throw new Error("ArrayBuffer clone value " + i);
74 break;
75 case 9:
76 var ab = m;
77 var t = new Uint32Array(ab);
78 if (ab.byteLength !== 32)
79 throw new Error("ArrayBuffer transfer byteLength");
80 for (var i = 0; i < 8; ++i)
81 if (t[i] !== i)
82 throw new Error("ArrayBuffer transfer value " + i);
83 break;
84 }
85
86 if (c == 10) {
87 postMessage("DONE");
88 }
89 }
90 }
91
92
93 if (this.Worker) {
94 function createArrayBuffer(byteLength) {
95 var ab = new ArrayBuffer(byteLength);
96 var t = new Uint32Array(ab);
97 for (var i = 0; i < byteLength / 4; ++i)
98 t[i] = i;
99 return ab;
100 }
101
102 var w = new Worker(f);
103
104 assertEquals("Starting worker", w.getMessage());
105
106 // Currently can only create one worker at a time.
107 assertThrows(function() { new Worker(f); });
108
109 w.postMessage(undefined);
110 w.postMessage(null);
111 w.postMessage(true);
112 w.postMessage(false);
113 w.postMessage(100);
114 w.postMessage("hi");
115 w.postMessage([4, true, "bye"]);
116 w.postMessage({a: 1, b: 2.5, c: "three"});
117
118 // Clone ArrayBuffer
119 var ab1 = createArrayBuffer(16);
120 w.postMessage(ab1);
121 assertEquals(16, ab1.byteLength); // ArrayBuffer should not be neutered.
122
123 // Transfer ArrayBuffer
124 var ab2 = createArrayBuffer(32);
125 w.postMessage(ab2, [ab2]);
126 assertEquals(0, ab2.byteLength); // ArrayBuffer should be neutered.
127
128 assertEquals("undefined", typeof foo);
129
130 // Read a message from the worker.
131 assertEquals("DONE", w.getMessage());
132
133 w.terminate();
134 }
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