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1 /* Copyright (c) 2012 The Chromium 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 /** | |
7 * This file defines the <code>PPB_VarArrayBuffer_Dev</code> struct. | |
8 */ | |
9 | |
10 label Chrome { | |
11 M17 = 0.1 | |
12 }; | |
13 | |
14 /** | |
15 * PPB_VarArrayBuffer_Dev API. This provides a way to interact with JavaScript | |
16 * ArrayBuffers, which represent a contiguous sequence of bytes. To manage the | |
17 * reference count for a VarArrayBuffer, please see PPB_Var. Note that | |
18 * these Vars are not part of the embedding page's DOM, and can only be shared | |
19 * with JavaScript via pp::Instance's PostMessage and HandleMessage functions. | |
20 */ | |
21 [macro="PPB_VAR_ARRAY_BUFFER_DEV_INTERFACE"] | |
22 interface PPB_VarArrayBuffer_Dev { | |
23 /** | |
24 * Create a zero-initialized VarArrayBuffer. | |
25 * | |
26 * @param[in] size_in_bytes The size of the array buffer that will be created. | |
27 * | |
28 * @return A PP_Var which represents an VarArrayBuffer of the requested size | |
29 * with a reference count of 1. | |
30 */ | |
31 PP_Var Create([in] uint32_t size_in_bytes); | |
32 /** | |
33 * Returns the length of the VarArrayBuffer in bytes. | |
34 * | |
35 * @return The length of the VarArrayBuffer in bytes. | |
36 */ | |
37 uint32_t ByteLength([in] PP_Var array); | |
38 /** | |
39 * Returns a pointer to the beginning of the buffer for the given array. | |
40 * | |
41 * @param[in] array The array whose buffer should be returned. | |
42 * | |
43 * @return A pointer to the buffer for this array. | |
44 */ | |
45 mem_t Map([in] PP_Var array); | |
46 }; | |
47 | |
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