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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_BIN_IO_BUFFER_H_ | 5 #ifndef RUNTIME_BIN_IO_BUFFER_H_ |
6 #define RUNTIME_BIN_IO_BUFFER_H_ | 6 #define RUNTIME_BIN_IO_BUFFER_H_ |
7 | 7 |
8 #include "include/dart_api.h" | 8 #include "include/dart_api.h" |
9 #include "platform/globals.h" | 9 #include "platform/globals.h" |
10 | 10 |
11 namespace dart { | 11 namespace dart { |
12 namespace bin { | 12 namespace bin { |
13 | 13 |
14 class IOBuffer { | 14 class IOBuffer { |
15 public: | 15 public: |
16 // Allocate an IO buffer dart object (of type Uint8List) backed by | 16 // Allocate an IO buffer dart object (of type Uint8List) backed by |
17 // an external byte array. | 17 // an external byte array. |
18 static Dart_Handle Allocate(intptr_t size, uint8_t **buffer); | 18 static Dart_Handle Allocate(intptr_t size, uint8_t** buffer); |
19 | 19 |
20 // Allocate IO buffer storage. | 20 // Allocate IO buffer storage. |
21 static uint8_t* Allocate(intptr_t size); | 21 static uint8_t* Allocate(intptr_t size); |
22 | 22 |
23 // Function for disposing of IO buffer storage. All backing storage | 23 // Function for disposing of IO buffer storage. All backing storage |
24 // for IO buffers must be freed using this function. | 24 // for IO buffers must be freed using this function. |
25 static void Free(void* buffer) { | 25 static void Free(void* buffer) { |
26 delete[] reinterpret_cast<uint8_t*>(buffer); | 26 delete[] reinterpret_cast<uint8_t*>(buffer); |
27 } | 27 } |
28 | 28 |
29 // Function for finalizing external byte arrays used as IO buffers. | 29 // Function for finalizing external byte arrays used as IO buffers. |
30 static void Finalizer(void* isolate_callback_data, | 30 static void Finalizer(void* isolate_callback_data, |
31 Dart_WeakPersistentHandle handle, | 31 Dart_WeakPersistentHandle handle, |
32 void* buffer) { | 32 void* buffer) { |
33 Free(buffer); | 33 Free(buffer); |
34 } | 34 } |
35 | 35 |
36 private: | 36 private: |
37 DISALLOW_ALLOCATION(); | 37 DISALLOW_ALLOCATION(); |
38 DISALLOW_IMPLICIT_CONSTRUCTORS(IOBuffer); | 38 DISALLOW_IMPLICIT_CONSTRUCTORS(IOBuffer); |
39 }; | 39 }; |
40 | 40 |
41 } // namespace bin | 41 } // namespace bin |
42 } // namespace dart | 42 } // namespace dart |
43 | 43 |
44 #endif // RUNTIME_BIN_IO_BUFFER_H_ | 44 #endif // RUNTIME_BIN_IO_BUFFER_H_ |
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