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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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 |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 #ifndef V8_TEST_CCTEST_TRACE_EXTENSION_H_ | 28 #ifndef V8_ZONE_ALLOCATOR_H_ |
29 #define V8_TEST_CCTEST_TRACE_EXTENSION_H_ | 29 #define V8_ZONE_ALLOCATOR_H_ |
30 | 30 |
31 #include "v8.h" | 31 #include "zone.h" |
32 | 32 |
33 namespace v8 { | 33 namespace v8 { |
34 namespace internal { | 34 namespace internal { |
35 | 35 |
36 class TraceExtension : public v8::Extension { | 36 template<typename T> |
37 class zone_allocator { | |
37 public: | 38 public: |
38 TraceExtension() : v8::Extension("v8/trace", kSource) { } | 39 typedef T* pointer; |
39 virtual v8::Handle<v8::FunctionTemplate> GetNativeFunctionTemplate( | 40 typedef const T* const_pointer; |
40 v8::Isolate* isolate, | 41 typedef T& reference; |
41 v8::Handle<v8::String> name); | 42 typedef const T& const_reference; |
42 static void Trace(const v8::FunctionCallbackInfo<v8::Value>& args); | 43 typedef T value_type; |
43 static void JSTrace(const v8::FunctionCallbackInfo<v8::Value>& args); | 44 typedef size_t size_type; |
44 static void JSEntrySP(const v8::FunctionCallbackInfo<v8::Value>& args); | 45 typedef ptrdiff_t difference_type; |
45 static void JSEntrySPLevel2(const v8::FunctionCallbackInfo<v8::Value>& args); | 46 template<class O> struct rebind { |
46 static Address GetJsEntrySp(); | 47 typedef zone_allocator<O> other; |
47 static void InitTraceEnv(TickSample* sample); | 48 }; |
48 static void DoTrace(Address fp); | 49 |
50 explicit zone_allocator(Zone* zone) throw() : zone_(zone) {} | |
51 explicit zone_allocator(const zone_allocator& other) throw() | |
52 : zone_(other.zone_) {} | |
Jakob Kummerow
2014/02/07 11:48:04
nit: 4-space indent
| |
53 template<typename U> zone_allocator(const zone_allocator<U>&) throw() {} | |
54 | |
55 pointer address(reference x) const {return &x;} | |
56 const_pointer address(const_reference x) const {return &x;} | |
57 | |
58 pointer allocate(size_type count, const void* hint = 0) { | |
59 size_t size = count * sizeof(value_type); | |
60 size = RoundUp(size, kPointerSize); | |
61 return static_cast<pointer>(zone_->New(size)); | |
62 } | |
63 void deallocate(pointer p, size_type) { /* noop for Zones */ } | |
64 | |
65 size_type max_size() const throw() { | |
66 size_type max = static_cast<size_type>(-1) / sizeof(T); | |
67 return (max > 0 ? max : 1); | |
68 } | |
69 void construct(pointer p, const T& val) { | |
70 new(static_cast<void*>(p)) T(val); | |
71 } | |
72 void destroy(pointer p) { (static_cast<T*>(p))->~T(); } | |
73 | |
49 private: | 74 private: |
50 static Address GetFP(const v8::FunctionCallbackInfo<v8::Value>& args); | 75 Zone* zone_; |
51 static const char* kSource; | |
52 }; | 76 }; |
53 | 77 |
54 } } // namespace v8::internal | 78 } } // namespace v8::internal |
55 | 79 |
56 #endif | 80 #endif // V8_ZONE_ALLOCATOR_H_ |
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