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| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <!-- | 2 <!-- |
| 3 Copyright (c) 2013 The Chromium Authors. All rights reserved. | 3 Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 4 Use of this source code is governed by a BSD-style license that can be | 4 Use of this source code is governed by a BSD-style license that can be |
| 5 found in the LICENSE file. | 5 found in the LICENSE file. |
| 6 --> | 6 --> |
| 7 | 7 |
| 8 <link rel="import" href="/tracing/base/in_memory_trace_stream.html"> | 8 <link rel="import" href="/tracing/base/in_memory_trace_stream.html"> |
| 9 <link rel="import" href="/tracing/extras/importer/jszip.html"> | 9 <link rel="import" href="/tracing/extras/importer/jszip.html"> |
| 10 <link rel="import" href="/tracing/importer/importer.html"> | 10 <link rel="import" href="/tracing/importer/importer.html"> |
| (...skipping 115 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 126 if (haveHeaderCrc) getWord(); | 126 if (haveHeaderCrc) getWord(); |
| 127 | 127 |
| 128 // Inflate the data using jszip. | 128 // Inflate the data using jszip. |
| 129 const inflatedData = | 129 const inflatedData = |
| 130 JSZip.compressions.DEFLATE.uncompress(data.subarray(position)); | 130 JSZip.compressions.DEFLATE.uncompress(data.subarray(position)); |
| 131 | 131 |
| 132 if (this.inflateAsTraceStream_) { | 132 if (this.inflateAsTraceStream_) { |
| 133 return GzipImporter.transformToStream(inflatedData); | 133 return GzipImporter.transformToStream(inflatedData); |
| 134 } | 134 } |
| 135 | 135 |
| 136 const string = GzipImporter.transformToString(inflatedData); | 136 let string; |
| 137 try { |
| 138 string = GzipImporter.transformToString(inflatedData); |
| 139 } catch (err) { |
| 140 // It may be the case that inflated data does not fit into a V8 string. In |
| 141 // that case, try to transform to a trace stream. |
| 142 return GzipImporter.transformToStream(inflatedData); |
| 143 } |
| 137 | 144 |
| 138 if (inflatedData.length > 0 && string.length === 0) { | 145 if (inflatedData.length > 0 && string.length === 0) { |
| 139 throw new RangeError('Inflated gzip data too long to fit into a string' + | 146 throw new RangeError('Inflated gzip data too long to fit into a string' + |
| 140 ' (' + inflatedData.length + ').'); | 147 ' (' + inflatedData.length + ').'); |
| 141 } | 148 } |
| 142 | 149 |
| 143 return string; | 150 return string; |
| 144 }; | 151 }; |
| 145 | 152 |
| 146 GzipImporter.transformToStream = function(data) { | 153 GzipImporter.transformToStream = function(data) { |
| (...skipping 57 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 204 } | 211 } |
| 205 }; | 212 }; |
| 206 | 213 |
| 207 tr.importer.Importer.register(GzipImporter); | 214 tr.importer.Importer.register(GzipImporter); |
| 208 | 215 |
| 209 return { | 216 return { |
| 210 GzipImporter, | 217 GzipImporter, |
| 211 }; | 218 }; |
| 212 }); | 219 }); |
| 213 </script> | 220 </script> |
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Chromium Code Reviews
Issue 2864743002:
tracing: Enable stream processing when input is large (Closed)
