ExpandBuf.h revision 2ad60cfc28e14ee8f0bb038720836a4696c478ad
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 _DALVIK_JDWP_EXPANDBUF 20#define _DALVIK_JDWP_EXPANDBUF 21 22#include "Common.h" // need u1/u2/u4/u8 types 23 24struct ExpandBuf; /* private */ 25typedef struct ExpandBuf ExpandBuf; 26 27/* create a new struct */ 28ExpandBuf* expandBufAlloc(void); 29/* free storage */ 30void expandBufFree(ExpandBuf* pBuf); 31 32/* 33 * Accessors. The buffer pointer and length will only be valid until more 34 * data is added. 35 */ 36u1* expandBufGetBuffer(ExpandBuf* pBuf); 37size_t expandBufGetLength(ExpandBuf* pBuf); 38 39/* 40 * The "add" operations allocate additional storage and append the data. 41 * 42 * There are no "get" operations included with this "class", other than 43 * GetBuffer(). If you want to get or set data from a position other 44 * than the end, get a pointer to the buffer and use the inline functions 45 * defined elsewhere. 46 * 47 * expandBufAddSpace() returns a pointer to the *start* of the region 48 * added. 49 */ 50u1* expandBufAddSpace(ExpandBuf* pBuf, int gapSize); 51void expandBufAdd1(ExpandBuf* pBuf, u1 val); 52void expandBufAdd2BE(ExpandBuf* pBuf, u2 val); 53void expandBufAdd4BE(ExpandBuf* pBuf, u4 val); 54void expandBufAdd8BE(ExpandBuf* pBuf, u8 val); 55void expandBufAddUtf8String(ExpandBuf* pBuf, const u1* str); 56 57#endif /*_DALVIK_JDWP_EXPANDBUF*/ 58