Line data Source code
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
3 : // found in the LICENSE file.
4 :
5 :
6 : #include "src/snapshot/snapshot-source-sink.h"
7 :
8 : #include "src/base/logging.h"
9 : #include "src/handles-inl.h"
10 : #include "src/objects-inl.h"
11 :
12 : namespace v8 {
13 : namespace internal {
14 :
15 810956009 : void SnapshotByteSource::CopyRaw(byte* to, int number_of_bytes) {
16 810956009 : memcpy(to, data_ + position_, number_of_bytes);
17 810956009 : position_ += number_of_bytes;
18 810956009 : }
19 :
20 :
21 7981570 : void SnapshotByteSink::PutInt(uintptr_t integer, const char* description) {
22 : DCHECK(integer < 1 << 30);
23 7981570 : integer <<= 2;
24 : int bytes = 1;
25 7981570 : if (integer > 0xff) bytes = 2;
26 7981570 : if (integer > 0xffff) bytes = 3;
27 7981570 : if (integer > 0xffffff) bytes = 4;
28 7981570 : integer |= (bytes - 1);
29 7981570 : Put(static_cast<int>(integer & 0xff), "IntPart1");
30 7981570 : if (bytes > 1) Put(static_cast<int>((integer >> 8) & 0xff), "IntPart2");
31 7981570 : if (bytes > 2) Put(static_cast<int>((integer >> 16) & 0xff), "IntPart3");
32 7981570 : if (bytes > 3) Put(static_cast<int>((integer >> 24) & 0xff), "IntPart4");
33 7981570 : }
34 :
35 :
36 1796661 : void SnapshotByteSink::PutRaw(const byte* data, int number_of_bytes,
37 : const char* description) {
38 1796661 : data_.AddAll(Vector<byte>(const_cast<byte*>(data), number_of_bytes));
39 1796661 : }
40 :
41 :
42 2379120 : int SnapshotByteSource::GetBlob(const byte** data) {
43 2379120 : int size = GetInt();
44 2379120 : CHECK(position_ + size <= length_);
45 2379120 : *data = &data_[position_];
46 : Advance(size);
47 2379120 : return size;
48 : }
49 : } // namespace internal
50 : } // namespace v8
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