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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <script src="../../resources/testharness.js"></script> |
| 3 <script src="../../resources/testharnessreport.js"></script> |
| 4 <body> |
| 5 <script id="worker" type="javascript/worker"> |
| 6 |
| 7 var messageHandler = function(port, e) { |
| 8 var text_decoder = new TextDecoder; |
| 9 port.postMessage({ |
| 10 content: text_decoder.decode(e.data), |
| 11 byteLength: e.data.byteLength |
| 12 }); |
| 13 |
| 14 // Send back the array buffer. |
| 15 port.postMessage(e.data, [e.data.buffer]); |
| 16 |
| 17 port.postMessage({ |
| 18 content: text_decoder.decode(e.data), |
| 19 byteLength: e.data.byteLength |
| 20 }); |
| 21 }; |
| 22 |
| 23 // For Worker. |
| 24 self.addEventListener('message', e => { |
| 25 var port = e.ports[0]; |
| 26 port.onmessage = messageHandler.bind(null, port); |
| 27 }); |
| 28 |
| 29 // For SharedWorker. |
| 30 self.addEventListener('connect', e => { |
| 31 var port = e.ports[0]; |
| 32 port.onmessage = messageHandler.bind(null, port); |
| 33 }); |
| 34 |
| 35 </script> |
| 36 |
| 37 <script> |
| 38 |
| 39 async_test(t => { |
| 40 var message = 'Hello, world!'; |
| 41 var text_encoder = new TextEncoder; |
| 42 var text_decoder = new TextDecoder; |
| 43 |
| 44 var channel = new MessageChannel; |
| 45 channel.port1.onmessage = function(e) { |
| 46 assert_equals(e.data.byteLength, message.length); |
| 47 assert_equals(text_decoder.decode(e.data), message); |
| 48 t.done(); |
| 49 }; |
| 50 channel.port2.onmessage = function(e) { |
| 51 assert_equals(e.data.byteLength, message.length); |
| 52 assert_equals(text_decoder.decode(e.data), message); |
| 53 channel.port2.postMessage(e.data, [e.data.buffer]); |
| 54 assert_equals(e.data.byteLength, 0); |
| 55 assert_equals(text_decoder.decode(e.data), ''); |
| 56 }; |
| 57 |
| 58 var ab = text_encoder.encode(message); |
| 59 assert_equals(ab.byteLength, message.length); |
| 60 channel.port1.postMessage(ab, [ab.buffer]); |
| 61 assert_equals(ab.byteLength, 0); |
| 62 assert_equals(text_decoder.decode(ab.data), ''); |
| 63 }, 'Send a transferable ArrayBuffer within a same frame'); |
| 64 |
| 65 async_test(t => { |
| 66 var message = 'Hello, world!'; |
| 67 var text_encoder = new TextEncoder; |
| 68 var text_decoder = new TextDecoder; |
| 69 |
| 70 var frame = document.createElement('iframe'); |
| 71 frame.src = 'resources/empty.html'; |
| 72 frame.onload = function() { |
| 73 frame.contentWindow.onmessage = function(evt) { |
| 74 var port = evt.data; |
| 75 port.onmessage = function(e) { |
| 76 assert_equals(e.data.byteLength, message.length); |
| 77 assert_equals(text_decoder.decode(e.data), message); |
| 78 port.postMessage(e.data, [e.data.buffer]); |
| 79 assert_equals(e.data.byteLength, 0); |
| 80 assert_equals(text_decoder.decode(e.data), ''); |
| 81 }; |
| 82 }; |
| 83 |
| 84 var channel = new MessageChannel; |
| 85 channel.port1.onmessage = function(e) { |
| 86 assert_equals(e.data.byteLength, message.length); |
| 87 assert_equals(text_decoder.decode(e.data), message); |
| 88 t.done(); |
| 89 }; |
| 90 frame.contentWindow.postMessage(channel.port2, '*', [channel.port2]); |
| 91 |
| 92 var ab = text_encoder.encode(message); |
| 93 assert_equals(ab.byteLength, message.length); |
| 94 channel.port1.postMessage(ab, [ab.buffer]); |
| 95 assert_equals(ab.byteLength, 0); |
| 96 assert_equals(text_decoder.decode(ab), ''); |
| 97 }; |
| 98 document.body.appendChild(frame); |
| 99 }, 'Send a transferable ArrayBuffer over frames'); |
| 100 |
| 101 promise_test(t => { |
| 102 var message = 'Hello, world!'; |
| 103 var text_encoder = new TextEncoder; |
| 104 var text_decoder = new TextDecoder; |
| 105 var channel = new MessageChannel; |
| 106 |
| 107 var blob = new Blob([document.querySelector('#worker').textContent]); |
| 108 var worker = new Worker(URL.createObjectURL(blob)); |
| 109 worker.postMessage(undefined, [channel.port2]); |
| 110 |
| 111 var ab = text_encoder.encode(message); |
| 112 assert_equals(ab.byteLength, message.length); |
| 113 channel.port1.postMessage(ab, [ab.buffer]); |
| 114 assert_equals( |
| 115 ab.byteLength, 0, |
| 116 'Byte length of a neutered buffer should be zero.'); |
| 117 |
| 118 return new Promise(resolve => { channel.port1.onmessage = resolve; }) |
| 119 .then(e => { |
| 120 // Verify the integrity of the transferred array buffer. |
| 121 assert_equals(e.data.content, message); |
| 122 assert_equals(e.data.byteLength, message.length); |
| 123 return new Promise(resolve => { channel.port1.onmessage = resolve; }) |
| 124 }) |
| 125 .then(e => { |
| 126 // Verify the integrity of the array buffer sent back from Worker via |
| 127 // MessagePort. |
| 128 assert_equals(text_decoder.decode(e.data), message); |
| 129 assert_equals(e.data.byteLength, message.length); |
| 130 return new Promise(resolve => { channel.port1.onmessage = resolve; }) |
| 131 }) |
| 132 .then(e => { |
| 133 // Verify that the array buffer on ServiceWorker is neutered. |
| 134 assert_equals(e.data.content, ''); |
| 135 assert_equals(e.data.byteLength, 0); |
| 136 }); |
| 137 }, 'Send a transferable ArrayBuffer to Worker'); |
| 138 |
| 139 promise_test(t => { |
| 140 var message = 'Hello, world!'; |
| 141 var text_encoder = new TextEncoder; |
| 142 var text_decoder = new TextDecoder; |
| 143 |
| 144 var blob = new Blob([document.querySelector('#worker').textContent]); |
| 145 var worker = new SharedWorker(URL.createObjectURL(blob)); |
| 146 |
| 147 var ab = text_encoder.encode(message); |
| 148 assert_equals(ab.byteLength, message.length); |
| 149 worker.port.postMessage(ab, [ab.buffer]); |
| 150 assert_equals( |
| 151 ab.byteLength, 0, |
| 152 'Byte length of a neutered buffer should be zero.'); |
| 153 |
| 154 return new Promise(resolve => { worker.port.onmessage = resolve; }) |
| 155 .then(e => { |
| 156 // Verify the integrity of the transferred array buffer. |
| 157 assert_equals(e.data.content, message); |
| 158 assert_equals(e.data.byteLength, message.length); |
| 159 return new Promise(resolve => { worker.port.onmessage = resolve; }) |
| 160 }) |
| 161 .then(e => { |
| 162 // Verify the integrity of the array buffer sent back from Worker via |
| 163 // MessagePort. |
| 164 assert_equals(text_decoder.decode(e.data), message); |
| 165 assert_equals(e.data.byteLength, message.length); |
| 166 return new Promise(resolve => { worker.port.onmessage = resolve; }) |
| 167 }) |
| 168 .then(e => { |
| 169 // Verify that the array buffer on ServiceWorker is neutered. |
| 170 assert_equals(e.data.content, ''); |
| 171 assert_equals(e.data.byteLength, 0); |
| 172 }); |
| 173 }, 'Send a transferable ArrayBuffer to SharedWorker'); |
| 174 |
| 175 </script> |
| 176 </body> |
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Chromium Code Reviews
Issue 2414333003:
WebMessaging: Send transferable ArrayBuffers by copy-and-neuter semantics (Closed)
