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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium 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 #ifndef MOJO_PUBLIC_BINDINGS_BUFFER_H_ | 5 #ifndef MOJO_PUBLIC_CPP_BINDINGS_BUFFER_H_ |
6 #define MOJO_PUBLIC_BINDINGS_BUFFER_H_ | 6 #define MOJO_PUBLIC_CPP_BINDINGS_BUFFER_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 namespace mojo { | 10 namespace mojo { |
11 | 11 |
12 // Buffer provides a way to allocate memory. Allocations are 8-byte aligned and | 12 // Buffer provides a way to allocate memory. Allocations are 8-byte aligned and |
13 // zero-initialized. Allocations remain valid for the lifetime of the Buffer. | 13 // zero-initialized. Allocations remain valid for the lifetime of the Buffer. |
14 class Buffer { | 14 class Buffer { |
15 public: | 15 public: |
16 typedef void (*Destructor)(void* address); | 16 typedef void (*Destructor)(void* address); |
17 | 17 |
18 Buffer(); | 18 Buffer(); |
19 virtual ~Buffer(); | 19 virtual ~Buffer(); |
20 | 20 |
21 // A destructor may optionally be assigned to the allocation. Destructors run | 21 // A destructor may optionally be assigned to the allocation. Destructors run |
22 // (in LIFO order) when the Buffer instance is destroyed. | 22 // (in LIFO order) when the Buffer instance is destroyed. |
23 virtual void* Allocate(size_t num_bytes, Destructor func = NULL) = 0; | 23 virtual void* Allocate(size_t num_bytes, Destructor func = NULL) = 0; |
24 | 24 |
25 // Returns the current Buffer from thread local storage. May be NULL. | 25 // Returns the current Buffer from thread local storage. May be NULL. |
26 static Buffer* current(); | 26 static Buffer* current(); |
27 | 27 |
28 private: | 28 private: |
29 Buffer* previous_; | 29 Buffer* previous_; |
30 }; | 30 }; |
31 | 31 |
32 } // namespace mojo | 32 } // namespace mojo |
33 | 33 |
34 #endif // MOJO_PUBLIC_BINDINGS_BUFFER_H_ | 34 #endif // MOJO_PUBLIC_CPP_BINDINGS_BUFFER_H_ |
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