1 // Copyright 2010 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 #include "gc-extension.h" 29 30 namespace v8 { 31 namespace internal { 32 33 const char* const GCExtension::kSource = "native function gc();"; 34 35 36 v8::Handle<v8::FunctionTemplate> GCExtension::GetNativeFunction( 37 v8::Handle<v8::String> str) { 38 return v8::FunctionTemplate::New(GCExtension::GC); 39 } 40 41 42 v8::Handle<v8::Value> GCExtension::GC(const v8::Arguments& args) { 43 bool compact = false; 44 // All allocation spaces other than NEW_SPACE have the same effect. 45 if (args.Length() >= 1 && args[0]->IsBoolean()) { 46 compact = args[0]->BooleanValue(); 47 } 48 HEAP->CollectAllGarbage(compact); 49 return v8::Undefined(); 50 } 51 52 53 void GCExtension::Register() { 54 static GCExtension gc_extension; 55 static v8::DeclareExtension gc_extension_declaration(&gc_extension); 56 } 57 58 } } // namespace v8::internal 59
