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Side by Side Diff: src/extensions/gc-extension.cc

Issue 11232065: Expose gc(true) to JavaScript, which triggers a scavenger GC. (Closed) Base URL: git://github.com/v8/v8.git@master
Patch Set: Reviewer comments addressed Created 8 years, 1 month ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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33 const char* const GCExtension::kSource = "native function gc();"; 33 const char* const GCExtension::kSource = "native function gc();";
34 34
35 35
36 v8::Handle<v8::FunctionTemplate> GCExtension::GetNativeFunction( 36 v8::Handle<v8::FunctionTemplate> GCExtension::GetNativeFunction(
37 v8::Handle<v8::String> str) { 37 v8::Handle<v8::String> str) {
38 return v8::FunctionTemplate::New(GCExtension::GC); 38 return v8::FunctionTemplate::New(GCExtension::GC);
39 } 39 }
40 40
41 41
42 v8::Handle<v8::Value> GCExtension::GC(const v8::Arguments& args) { 42 v8::Handle<v8::Value> GCExtension::GC(const v8::Arguments& args) {
43 HEAP->CollectAllGarbage(Heap::kNoGCFlags, "gc extension"); 43 if (args[0]->BooleanValue()) {
44 HEAP->CollectGarbage(NEW_SPACE, "gc extension");
45 } else {
46 HEAP->CollectAllGarbage(Heap::kNoGCFlags, "gc extension");
47 }
44 return v8::Undefined(); 48 return v8::Undefined();
45 } 49 }
46 50
47 51
48 void GCExtension::Register() { 52 void GCExtension::Register() {
49 static GCExtension gc_extension; 53 static GCExtension gc_extension;
50 static v8::DeclareExtension declaration(&gc_extension); 54 static v8::DeclareExtension declaration(&gc_extension);
51 } 55 }
52 56
53 } } // namespace v8::internal 57 } } // namespace v8::internal
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