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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef RUNTIME_VM_DART_API_MESSAGE_H_ | 5 #ifndef RUNTIME_VM_DART_API_MESSAGE_H_ |
6 #define RUNTIME_VM_DART_API_MESSAGE_H_ | 6 #define RUNTIME_VM_DART_API_MESSAGE_H_ |
7 | 7 |
8 #include "include/dart_native_api.h" | 8 #include "include/dart_native_api.h" |
9 #include "platform/utils.h" | 9 #include "platform/utils.h" |
10 #include "vm/allocation.h" | 10 #include "vm/allocation.h" |
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43 | 43 |
44 | 44 |
45 // Reads a message snapshot into a C structure. | 45 // Reads a message snapshot into a C structure. |
46 class ApiMessageReader : public BaseReader { | 46 class ApiMessageReader : public BaseReader { |
47 public: | 47 public: |
48 // The ApiMessageReader object must be enclosed by an ApiNativeScope. | 48 // The ApiMessageReader object must be enclosed by an ApiNativeScope. |
49 // Allocation of all C Heap objects is done in the zone associated with | 49 // Allocation of all C Heap objects is done in the zone associated with |
50 // the enclosing ApiNativeScope. | 50 // the enclosing ApiNativeScope. |
51 ApiMessageReader(const uint8_t* buffer, intptr_t length); | 51 ApiMessageReader(const uint8_t* buffer, intptr_t length); |
52 explicit ApiMessageReader(Message* message); | 52 explicit ApiMessageReader(Message* message); |
53 ~ApiMessageReader() { } | 53 ~ApiMessageReader() {} |
54 | 54 |
55 Dart_CObject* ReadMessage(); | 55 Dart_CObject* ReadMessage(); |
56 | 56 |
57 private: | 57 private: |
58 class BackRefNode { | 58 class BackRefNode { |
59 public: | 59 public: |
60 BackRefNode(Dart_CObject* reference, DeserializeState state) | 60 BackRefNode(Dart_CObject* reference, DeserializeState state) |
61 : reference_(reference), state_(state) {} | 61 : reference_(reference), state_(state) {} |
62 Dart_CObject* reference() const { return reference_; } | 62 Dart_CObject* reference() const { return reference_; } |
63 void set_reference(Dart_CObject* reference) { reference_ = reference; } | 63 void set_reference(Dart_CObject* reference) { reference_ = reference; } |
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86 Dart_CObject* AllocateDartCObjectInt32(int32_t value); | 86 Dart_CObject* AllocateDartCObjectInt32(int32_t value); |
87 // Allocates a Dart_CObject object for for a 64-bit integer. | 87 // Allocates a Dart_CObject object for for a 64-bit integer. |
88 Dart_CObject* AllocateDartCObjectInt64(int64_t value); | 88 Dart_CObject* AllocateDartCObjectInt64(int64_t value); |
89 // Allocates an empty Dart_CObject object for a bigint to be filled up later. | 89 // Allocates an empty Dart_CObject object for a bigint to be filled up later. |
90 Dart_CObject* AllocateDartCObjectBigint(); | 90 Dart_CObject* AllocateDartCObjectBigint(); |
91 // Allocates a Dart_CObject object for a double. | 91 // Allocates a Dart_CObject object for a double. |
92 Dart_CObject* AllocateDartCObjectDouble(double value); | 92 Dart_CObject* AllocateDartCObjectDouble(double value); |
93 // Allocates a Dart_CObject object for string data. | 93 // Allocates a Dart_CObject object for string data. |
94 Dart_CObject* AllocateDartCObjectString(intptr_t length); | 94 Dart_CObject* AllocateDartCObjectString(intptr_t length); |
95 // Allocates a C Dart_CObject object for a typed data. | 95 // Allocates a C Dart_CObject object for a typed data. |
96 Dart_CObject* AllocateDartCObjectTypedData( | 96 Dart_CObject* AllocateDartCObjectTypedData(Dart_TypedData_Type type, |
97 Dart_TypedData_Type type, intptr_t length); | 97 intptr_t length); |
98 // Allocates a C array of Dart_CObject objects. | 98 // Allocates a C array of Dart_CObject objects. |
99 Dart_CObject* AllocateDartCObjectArray(intptr_t length); | 99 Dart_CObject* AllocateDartCObjectArray(intptr_t length); |
100 // Allocate a C Dart_CObject object for a VM isolate object. | 100 // Allocate a C Dart_CObject object for a VM isolate object. |
101 Dart_CObject* AllocateDartCObjectVmIsolateObj(intptr_t id); | 101 Dart_CObject* AllocateDartCObjectVmIsolateObj(intptr_t id); |
102 // Allocates a Dart_CObject_Internal object with the specified type. | 102 // Allocates a Dart_CObject_Internal object with the specified type. |
103 Dart_CObject_Internal* AllocateDartCObjectInternal( | 103 Dart_CObject_Internal* AllocateDartCObjectInternal( |
104 Dart_CObject_Internal::Type type); | 104 Dart_CObject_Internal::Type type); |
105 // Allocates a Dart_CObject_Internal object for a class object. | 105 // Allocates a Dart_CObject_Internal object for a class object. |
106 Dart_CObject_Internal* AllocateDartCObjectClass(); | 106 Dart_CObject_Internal* AllocateDartCObjectClass(); |
107 // Allocates a backwards reference node. | 107 // Allocates a backwards reference node. |
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130 Dart_CObject_Internal* AsInternal(Dart_CObject* object) { | 130 Dart_CObject_Internal* AsInternal(Dart_CObject* object) { |
131 ASSERT(object->type >= Dart_CObject_kNumberOfTypes); | 131 ASSERT(object->type >= Dart_CObject_kNumberOfTypes); |
132 return reinterpret_cast<Dart_CObject_Internal*>(object); | 132 return reinterpret_cast<Dart_CObject_Internal*>(object); |
133 } | 133 } |
134 | 134 |
135 RawObject* VmIsolateSnapshotObject(intptr_t index) const { | 135 RawObject* VmIsolateSnapshotObject(intptr_t index) const { |
136 return Object::vm_isolate_snapshot_object_table().At(index); | 136 return Object::vm_isolate_snapshot_object_table().At(index); |
137 } | 137 } |
138 | 138 |
139 Dart_CObject* CreateDartCObjectString(RawObject* raw); | 139 Dart_CObject* CreateDartCObjectString(RawObject* raw); |
140 Dart_CObject* GetCanonicalMintObject(Dart_CObject_Type type, | 140 Dart_CObject* GetCanonicalMintObject(Dart_CObject_Type type, int64_t value64); |
141 int64_t value64); | |
142 | 141 |
143 uint8_t* allocator(intptr_t size) { | 142 uint8_t* allocator(intptr_t size) { |
144 return zone_->Realloc<uint8_t>(NULL, 0, size); | 143 return zone_->Realloc<uint8_t>(NULL, 0, size); |
145 } | 144 } |
146 | 145 |
147 Zone* zone_; // Zone in which C heap objects are allocated. | 146 Zone* zone_; // Zone in which C heap objects are allocated. |
148 ApiGrowableArray<BackRefNode*> backward_references_; | 147 ApiGrowableArray<BackRefNode*> backward_references_; |
149 ApiGrowableArray<Dart_CObject*> vm_isolate_references_; | 148 ApiGrowableArray<Dart_CObject*> vm_isolate_references_; |
150 Dart_CObject** vm_symbol_references_; | 149 Dart_CObject** vm_symbol_references_; |
151 | 150 |
152 Dart_CObject type_arguments_marker; | 151 Dart_CObject type_arguments_marker; |
153 Dart_CObject dynamic_type_marker; | 152 Dart_CObject dynamic_type_marker; |
154 static _Dart_CObject* singleton_uint32_typed_data_; | 153 static _Dart_CObject* singleton_uint32_typed_data_; |
155 }; | 154 }; |
156 | 155 |
157 | 156 |
158 class ApiMessageWriter : public BaseWriter { | 157 class ApiMessageWriter : public BaseWriter { |
159 public: | 158 public: |
160 static const intptr_t kInitialSize = 512; | 159 static const intptr_t kInitialSize = 512; |
161 ApiMessageWriter(uint8_t** buffer, ReAlloc alloc) | 160 ApiMessageWriter(uint8_t** buffer, ReAlloc alloc) |
162 : BaseWriter(buffer, alloc, kInitialSize), | 161 : BaseWriter(buffer, alloc, kInitialSize), |
163 object_id_(0), forward_list_(NULL), | 162 object_id_(0), |
164 forward_list_length_(0), forward_id_(0) { | 163 forward_list_(NULL), |
| 164 forward_list_length_(0), |
| 165 forward_id_(0) { |
165 ASSERT(kDartCObjectTypeMask >= Dart_CObject_kNumberOfTypes - 1); | 166 ASSERT(kDartCObjectTypeMask >= Dart_CObject_kNumberOfTypes - 1); |
166 } | 167 } |
167 ~ApiMessageWriter() { | 168 ~ApiMessageWriter() { ::free(forward_list_); } |
168 ::free(forward_list_); | |
169 } | |
170 | 169 |
171 // Writes a message of integers. | 170 // Writes a message of integers. |
172 void WriteMessage(intptr_t field_count, intptr_t *data); | 171 void WriteMessage(intptr_t field_count, intptr_t* data); |
173 | 172 |
174 // Writes a message with a single object. | 173 // Writes a message with a single object. |
175 bool WriteCMessage(Dart_CObject* object); | 174 bool WriteCMessage(Dart_CObject* object); |
176 | 175 |
177 private: | 176 private: |
178 static const intptr_t kDartCObjectTypeBits = 4; | 177 static const intptr_t kDartCObjectTypeBits = 4; |
179 static const intptr_t kDartCObjectTypeMask = (1 << kDartCObjectTypeBits) - 1; | 178 static const intptr_t kDartCObjectTypeMask = (1 << kDartCObjectTypeBits) - 1; |
180 static const intptr_t kDartCObjectMarkMask = ~kDartCObjectTypeMask; | 179 static const intptr_t kDartCObjectMarkMask = ~kDartCObjectTypeMask; |
181 static const intptr_t kDartCObjectMarkOffset = 1; | 180 static const intptr_t kDartCObjectMarkOffset = 1; |
182 | 181 |
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244 | 243 |
245 static void ConvertNull(Dart_CObject* c_obj) { | 244 static void ConvertNull(Dart_CObject* c_obj) { |
246 c_obj->type = Dart_CObject_kNull; | 245 c_obj->type = Dart_CObject_kNull; |
247 c_obj->value.as_int64 = 0; | 246 c_obj->value.as_int64 = 0; |
248 } | 247 } |
249 }; | 248 }; |
250 | 249 |
251 } // namespace dart | 250 } // namespace dart |
252 | 251 |
253 #endif // RUNTIME_VM_DART_API_MESSAGE_H_ | 252 #endif // RUNTIME_VM_DART_API_MESSAGE_H_ |
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