| OLD | NEW |
| 1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 | 5 |
| 6 #include "src/snapshot-source-sink.h" | 6 #include "src/snapshot-source-sink.h" |
| 7 | 7 |
| 8 #include "src/base/logging.h" | 8 #include "src/base/logging.h" |
| 9 #include "src/handles-inl.h" | 9 #include "src/handles-inl.h" |
| 10 #include "src/serialize.h" // for SerializerDeserializer::nop() in AtEOF() | 10 #include "src/serialize.h" // for SerializerDeserializer::nop() in AtEOF() |
| 11 | 11 |
| 12 | 12 |
| 13 namespace v8 { | 13 namespace v8 { |
| 14 namespace internal { | 14 namespace internal { |
| 15 | 15 |
| 16 | 16 |
| 17 SnapshotByteSource::SnapshotByteSource(const byte* array, int length) | 17 SnapshotByteSource::SnapshotByteSource(const byte* array, int length) |
| 18 : data_(array), length_(length), position_(0) { | 18 : data_(array), length_(length), position_(0) { |
| 19 } | 19 } |
| 20 | 20 |
| 21 | 21 |
| 22 SnapshotByteSource::~SnapshotByteSource() { } | 22 SnapshotByteSource::~SnapshotByteSource() { } |
| 23 | 23 |
| 24 | 24 |
| 25 int32_t SnapshotByteSource::GetUnalignedInt() { | 25 int32_t SnapshotByteSource::GetUnalignedInt() { |
| 26 ASSERT(position_ < length_); // Require at least one byte left. | 26 DCHECK(position_ < length_); // Require at least one byte left. |
| 27 #if defined(V8_HOST_CAN_READ_UNALIGNED) && __BYTE_ORDER == __LITTLE_ENDIAN | 27 #if defined(V8_HOST_CAN_READ_UNALIGNED) && __BYTE_ORDER == __LITTLE_ENDIAN |
| 28 int32_t answer = *reinterpret_cast<const int32_t*>(data_ + position_); | 28 int32_t answer = *reinterpret_cast<const int32_t*>(data_ + position_); |
| 29 #else | 29 #else |
| 30 int32_t answer = data_[position_]; | 30 int32_t answer = data_[position_]; |
| 31 answer |= data_[position_ + 1] << 8; | 31 answer |= data_[position_ + 1] << 8; |
| 32 answer |= data_[position_ + 2] << 16; | 32 answer |= data_[position_ + 2] << 16; |
| 33 answer |= data_[position_ + 3] << 24; | 33 answer |= data_[position_ + 3] << 24; |
| 34 #endif | 34 #endif |
| 35 return answer; | 35 return answer; |
| 36 } | 36 } |
| 37 | 37 |
| 38 | 38 |
| 39 void SnapshotByteSource::CopyRaw(byte* to, int number_of_bytes) { | 39 void SnapshotByteSource::CopyRaw(byte* to, int number_of_bytes) { |
| 40 MemCopy(to, data_ + position_, number_of_bytes); | 40 MemCopy(to, data_ + position_, number_of_bytes); |
| 41 position_ += number_of_bytes; | 41 position_ += number_of_bytes; |
| 42 } | 42 } |
| 43 | 43 |
| 44 | 44 |
| 45 void SnapshotByteSink::PutInt(uintptr_t integer, const char* description) { | 45 void SnapshotByteSink::PutInt(uintptr_t integer, const char* description) { |
| 46 ASSERT(integer < 1 << 22); | 46 DCHECK(integer < 1 << 22); |
| 47 integer <<= 2; | 47 integer <<= 2; |
| 48 int bytes = 1; | 48 int bytes = 1; |
| 49 if (integer > 0xff) bytes = 2; | 49 if (integer > 0xff) bytes = 2; |
| 50 if (integer > 0xffff) bytes = 3; | 50 if (integer > 0xffff) bytes = 3; |
| 51 integer |= bytes; | 51 integer |= bytes; |
| 52 Put(static_cast<int>(integer & 0xff), "IntPart1"); | 52 Put(static_cast<int>(integer & 0xff), "IntPart1"); |
| 53 if (bytes > 1) Put(static_cast<int>((integer >> 8) & 0xff), "IntPart2"); | 53 if (bytes > 1) Put(static_cast<int>((integer >> 8) & 0xff), "IntPart2"); |
| 54 if (bytes > 2) Put(static_cast<int>((integer >> 16) & 0xff), "IntPart3"); | 54 if (bytes > 2) Put(static_cast<int>((integer >> 16) & 0xff), "IntPart3"); |
| 55 } | 55 } |
| 56 | 56 |
| (...skipping 35 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 92 } | 92 } |
| 93 | 93 |
| 94 | 94 |
| 95 void DebugSnapshotSink::Put(byte b, const char* description) { | 95 void DebugSnapshotSink::Put(byte b, const char* description) { |
| 96 PrintF("%24s: %x\n", description, b); | 96 PrintF("%24s: %x\n", description, b); |
| 97 sink_->Put(b, description); | 97 sink_->Put(b, description); |
| 98 } | 98 } |
| 99 | 99 |
| 100 } // namespace v8::internal | 100 } // namespace v8::internal |
| 101 } // namespace v8 | 101 } // namespace v8 |
| OLD | NEW |