1 /*
2  * Copyright (C) 2008 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 /*
17  * Expanding byte buffer, with primitives for appending basic data types.
18  */
19 #ifndef ART_RUNTIME_JDWP_JDWP_EXPAND_BUF_H_
20 #define ART_RUNTIME_JDWP_JDWP_EXPAND_BUF_H_
21 
22 #include <string>
23 
24 #include <stddef.h>
25 #include <stdint.h>
26 
27 namespace art {
28 
29 namespace JDWP {
30 
31 struct ExpandBuf;   /* private */
32 struct JdwpLocation;
33 
34 /* create a new struct */
35 ExpandBuf* expandBufAlloc();
36 /* free storage */
37 void expandBufFree(ExpandBuf* pBuf);
38 
39 /*
40  * Accessors.  The buffer pointer and length will only be valid until more
41  * data is added.
42  */
43 uint8_t* expandBufGetBuffer(ExpandBuf* pBuf);
44 size_t expandBufGetLength(ExpandBuf* pBuf);
45 
46 /*
47  * The "add" operations allocate additional storage and append the data.
48  *
49  * There are no "get" operations included with this "class", other than
50  * GetBuffer().  If you want to get or set data from a position other
51  * than the end, get a pointer to the buffer and use the inline functions
52  * defined elsewhere.
53  *
54  * expandBufAddSpace() returns a pointer to the *start* of the region
55  * added.
56  */
57 uint8_t* expandBufAddSpace(ExpandBuf* pBuf, int gapSize);
58 void expandBufAdd1(ExpandBuf* pBuf, uint8_t val);
59 void expandBufAdd2BE(ExpandBuf* pBuf, uint16_t val);
60 void expandBufAdd4BE(ExpandBuf* pBuf, uint32_t val);
61 void expandBufAdd8BE(ExpandBuf* pBuf, uint64_t val);
62 void expandBufAddUtf8String(ExpandBuf* pBuf, const char* s);
63 void expandBufAddUtf8String(ExpandBuf* pBuf, const std::string& s);
64 void expandBufAddLocation(ExpandBuf* pReply, const JdwpLocation& location);
65 
66 }  // namespace JDWP
67 
68 }  // namespace art
69 
70 #endif  // ART_RUNTIME_JDWP_JDWP_EXPAND_BUF_H_
71