OLD | NEW |
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 #include "vm/snapshot.h" | 5 #include "vm/snapshot.h" |
6 | 6 |
7 #include "platform/assert.h" | 7 #include "platform/assert.h" |
8 #include "vm/bigint_operations.h" | 8 #include "vm/bigint_operations.h" |
9 #include "vm/bootstrap.h" | 9 #include "vm/bootstrap.h" |
10 #include "vm/class_finalizer.h" | 10 #include "vm/class_finalizer.h" |
(...skipping 129 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
140 // handle, then signal an error. | 140 // handle, then signal an error. |
141 int64_t snapshot_length = ReadUnaligned(&snapshot->unaligned_length_); | 141 int64_t snapshot_length = ReadUnaligned(&snapshot->unaligned_length_); |
142 if ((snapshot_length < 0) || (snapshot_length > kIntptrMax)) { | 142 if ((snapshot_length < 0) || (snapshot_length > kIntptrMax)) { |
143 return NULL; | 143 return NULL; |
144 } | 144 } |
145 return snapshot; | 145 return snapshot; |
146 } | 146 } |
147 | 147 |
148 | 148 |
149 RawSmi* BaseReader::ReadAsSmi() { | 149 RawSmi* BaseReader::ReadAsSmi() { |
150 intptr_t value = ReadIntptrValue(); | 150 intptr_t value = Read<int32_t>(); |
151 ASSERT((value & kSmiTagMask) == kSmiTag); | 151 ASSERT((value & kSmiTagMask) == kSmiTag); |
152 return reinterpret_cast<RawSmi*>(value); | 152 return reinterpret_cast<RawSmi*>(value); |
153 } | 153 } |
154 | 154 |
155 | 155 |
156 intptr_t BaseReader::ReadSmiValue() { | 156 intptr_t BaseReader::ReadSmiValue() { |
157 return Smi::Value(ReadAsSmi()); | 157 return Smi::Value(ReadAsSmi()); |
158 } | 158 } |
159 | 159 |
160 | 160 |
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
202 const Error& err = Error::Handle(isolate()->object_store()->sticky_error()); | 202 const Error& err = Error::Handle(isolate()->object_store()->sticky_error()); |
203 isolate()->object_store()->clear_sticky_error(); | 203 isolate()->object_store()->clear_sticky_error(); |
204 return err.raw(); | 204 return err.raw(); |
205 } | 205 } |
206 } | 206 } |
207 | 207 |
208 | 208 |
209 RawClass* SnapshotReader::ReadClassId(intptr_t object_id) { | 209 RawClass* SnapshotReader::ReadClassId(intptr_t object_id) { |
210 ASSERT(kind_ != Snapshot::kFull); | 210 ASSERT(kind_ != Snapshot::kFull); |
211 // Read the class header information and lookup the class. | 211 // Read the class header information and lookup the class. |
212 intptr_t class_header = ReadIntptrValue(); | 212 intptr_t class_header = Read<int32_t>(); |
213 ASSERT((class_header & kSmiTagMask) != kSmiTag); | 213 ASSERT((class_header & kSmiTagMask) != kSmiTag); |
214 ASSERT(!IsVMIsolateObject(class_header) || | 214 ASSERT(!IsVMIsolateObject(class_header) || |
215 !IsSingletonClassId(GetVMIsolateObjectId(class_header))); | 215 !IsSingletonClassId(GetVMIsolateObjectId(class_header))); |
216 ASSERT((SerializedHeaderTag::decode(class_header) != kObjectId) || | 216 ASSERT((SerializedHeaderTag::decode(class_header) != kObjectId) || |
217 !IsObjectStoreClassId(SerializedHeaderData::decode(class_header))); | 217 !IsObjectStoreClassId(SerializedHeaderData::decode(class_header))); |
218 Class& cls = Class::ZoneHandle(isolate(), Class::null()); | 218 Class& cls = Class::ZoneHandle(isolate(), Class::null()); |
219 AddBackRef(object_id, &cls, kIsDeserialized); | 219 AddBackRef(object_id, &cls, kIsDeserialized); |
220 // Read the library/class information and lookup the class. | 220 // Read the library/class information and lookup the class. |
221 str_ ^= ReadObjectImpl(class_header); | 221 str_ ^= ReadObjectImpl(class_header); |
222 library_ = Library::LookupLibrary(str_); | 222 library_ = Library::LookupLibrary(str_); |
(...skipping 51 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
274 return ReadIndexedObject(SerializedHeaderData::decode(value)); | 274 return ReadIndexedObject(SerializedHeaderData::decode(value)); |
275 } | 275 } |
276 ASSERT(SerializedHeaderTag::decode(value) == kInlined); | 276 ASSERT(SerializedHeaderTag::decode(value) == kInlined); |
277 intptr_t object_id = SerializedHeaderData::decode(value); | 277 intptr_t object_id = SerializedHeaderData::decode(value); |
278 if (object_id == kOmittedObjectId) { | 278 if (object_id == kOmittedObjectId) { |
279 object_id = NextAvailableObjectId(); | 279 object_id = NextAvailableObjectId(); |
280 } | 280 } |
281 ASSERT(GetBackRef(object_id) == NULL); | 281 ASSERT(GetBackRef(object_id) == NULL); |
282 | 282 |
283 // Read the class header information and lookup the class. | 283 // Read the class header information and lookup the class. |
284 intptr_t class_header = ReadIntptrValue(); | 284 intptr_t class_header = Read<int32_t>(); |
285 | 285 |
286 // Since we are only reading an object reference, If it is an instance kind | 286 // Since we are only reading an object reference, If it is an instance kind |
287 // then we only need to figure out the class of the object and allocate an | 287 // then we only need to figure out the class of the object and allocate an |
288 // instance of it. The individual fields will be read later. | 288 // instance of it. The individual fields will be read later. |
289 if (SerializedHeaderData::decode(class_header) == kInstanceObjectId) { | 289 if (SerializedHeaderData::decode(class_header) == kInstanceObjectId) { |
290 Instance& result = Instance::ZoneHandle(isolate(), Instance::null()); | 290 Instance& result = Instance::ZoneHandle(isolate(), Instance::null()); |
291 AddBackRef(object_id, &result, kIsNotDeserialized); | 291 AddBackRef(object_id, &result, kIsNotDeserialized); |
292 | 292 |
293 cls_ ^= ReadObjectImpl(); // Read class information. | 293 cls_ ^= ReadObjectImpl(); // Read class information. |
294 ASSERT(!cls_.IsNull()); | 294 ASSERT(!cls_.IsNull()); |
(...skipping 552 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
847 return GetType(object_store(), object_id); // return type obj. | 847 return GetType(object_store(), object_id); // return type obj. |
848 } | 848 } |
849 } | 849 } |
850 Object* object = GetBackRef(object_id); | 850 Object* object = GetBackRef(object_id); |
851 return object->raw(); | 851 return object->raw(); |
852 } | 852 } |
853 | 853 |
854 | 854 |
855 RawObject* SnapshotReader::ReadInlinedObject(intptr_t object_id) { | 855 RawObject* SnapshotReader::ReadInlinedObject(intptr_t object_id) { |
856 // Read the class header information and lookup the class. | 856 // Read the class header information and lookup the class. |
857 intptr_t class_header = ReadIntptrValue(); | 857 intptr_t class_header = Read<int32_t>(); |
858 intptr_t tags = ReadTags(); | 858 intptr_t tags = ReadTags(); |
859 if (SerializedHeaderData::decode(class_header) == kInstanceObjectId) { | 859 if (SerializedHeaderData::decode(class_header) == kInstanceObjectId) { |
860 // Object is regular dart instance. | 860 // Object is regular dart instance. |
861 Instance* result = reinterpret_cast<Instance*>(GetBackRef(object_id)); | 861 Instance* result = reinterpret_cast<Instance*>(GetBackRef(object_id)); |
862 intptr_t instance_size = 0; | 862 intptr_t instance_size = 0; |
863 if (result == NULL) { | 863 if (result == NULL) { |
864 result = &(Instance::ZoneHandle(isolate(), Instance::null())); | 864 result = &(Instance::ZoneHandle(isolate(), Instance::null())); |
865 AddBackRef(object_id, result, kIsDeserialized); | 865 AddBackRef(object_id, result, kIsDeserialized); |
866 cls_ ^= ReadObjectImpl(); | 866 cls_ ^= ReadObjectImpl(); |
867 ASSERT(!cls_.IsNull()); | 867 ASSERT(!cls_.IsNull()); |
(...skipping 671 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1539 | 1539 |
1540 // Object is regular dart instance. | 1540 // Object is regular dart instance. |
1541 intptr_t next_field_offset = | 1541 intptr_t next_field_offset = |
1542 cls->ptr()->next_field_offset_in_words_ << kWordSizeLog2; | 1542 cls->ptr()->next_field_offset_in_words_ << kWordSizeLog2; |
1543 ASSERT(next_field_offset > 0); | 1543 ASSERT(next_field_offset > 0); |
1544 | 1544 |
1545 // Write out the serialization header value for this object. | 1545 // Write out the serialization header value for this object. |
1546 WriteInlinedObjectHeader(object_id); | 1546 WriteInlinedObjectHeader(object_id); |
1547 | 1547 |
1548 // Indicate this is an instance object. | 1548 // Indicate this is an instance object. |
1549 WriteIntptrValue(SerializedHeaderData::encode(kInstanceObjectId)); | 1549 Write<int32_t>(SerializedHeaderData::encode(kInstanceObjectId)); |
1550 | 1550 |
1551 // Write out the tags. | 1551 // Write out the tags. |
1552 WriteTags(tags); | 1552 WriteTags(tags); |
1553 | 1553 |
1554 // Write out the class information for this object. | 1554 // Write out the class information for this object. |
1555 WriteObjectImpl(cls); | 1555 WriteObjectImpl(cls); |
1556 | 1556 |
1557 // Write out all the fields for the object. | 1557 // Write out all the fields for the object. |
1558 // Instance::NextFieldOffset() returns the offset of the first field in | 1558 // Instance::NextFieldOffset() returns the offset of the first field in |
1559 // a Dart object. | 1559 // a Dart object. |
(...skipping 14 matching lines...) Expand all Loading... |
1574 // Object is being referenced, add it to the forward ref list and mark | 1574 // Object is being referenced, add it to the forward ref list and mark |
1575 // it so that future references to this object in the snapshot will use | 1575 // it so that future references to this object in the snapshot will use |
1576 // this object id. Mark it as not having been serialized yet so that we | 1576 // this object id. Mark it as not having been serialized yet so that we |
1577 // will serialize the object when we go through the forward list. | 1577 // will serialize the object when we go through the forward list. |
1578 forward_list_.MarkAndAddObject(raw, kIsNotSerialized); | 1578 forward_list_.MarkAndAddObject(raw, kIsNotSerialized); |
1579 | 1579 |
1580 // Write out the serialization header value for this object. | 1580 // Write out the serialization header value for this object. |
1581 WriteInlinedObjectHeader(kOmittedObjectId); | 1581 WriteInlinedObjectHeader(kOmittedObjectId); |
1582 | 1582 |
1583 // Indicate this is an instance object. | 1583 // Indicate this is an instance object. |
1584 WriteIntptrValue(SerializedHeaderData::encode(kInstanceObjectId)); | 1584 Write<int32_t>(SerializedHeaderData::encode(kInstanceObjectId)); |
1585 | 1585 |
1586 // Write out the class information for this object. | 1586 // Write out the class information for this object. |
1587 WriteObjectImpl(cls); | 1587 WriteObjectImpl(cls); |
1588 } | 1588 } |
1589 | 1589 |
1590 | 1590 |
1591 void SnapshotWriter::ThrowException(Exceptions::ExceptionType type, | 1591 void SnapshotWriter::ThrowException(Exceptions::ExceptionType type, |
1592 const char* msg) { | 1592 const char* msg) { |
1593 Isolate::Current()->object_store()->clear_sticky_error(); | 1593 Isolate::Current()->object_store()->clear_sticky_error(); |
1594 UnmarkAll(); | 1594 UnmarkAll(); |
(...skipping 55 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1650 NoGCScope no_gc; | 1650 NoGCScope no_gc; |
1651 WriteObject(obj.raw()); | 1651 WriteObject(obj.raw()); |
1652 UnmarkAll(); | 1652 UnmarkAll(); |
1653 } else { | 1653 } else { |
1654 ThrowException(exception_type(), exception_msg()); | 1654 ThrowException(exception_type(), exception_msg()); |
1655 } | 1655 } |
1656 } | 1656 } |
1657 | 1657 |
1658 | 1658 |
1659 } // namespace dart | 1659 } // namespace dart |
OLD | NEW |