108 lines
1.8 KiB
C
108 lines
1.8 KiB
C
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/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __UTILS_BUFFER_H__
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#define __UTILS_BUFFER_H__ 1
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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namespace android {
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class Buffer
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{
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private:
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char *buf;
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int bufsiz;
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int used;
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void ensureCapacity(int len);
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void
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makeRoomFor(int len)
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{
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if (len + used >= bufsiz) {
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bufsiz = (len + used) * 3/2 + 2;
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char *blah = new char[bufsiz];
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memcpy(blah, buf, used);
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delete[] buf;
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buf = blah;
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}
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}
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public:
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Buffer()
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{
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bufsiz = 16;
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buf = new char[bufsiz];
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clear();
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}
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~Buffer()
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{
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delete[] buf;
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}
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void
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clear()
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{
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buf[0] = '\0';
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used = 0;
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}
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int
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length()
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{
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return used;
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}
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void
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append(const char c)
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{
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makeRoomFor(1);
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buf[used] = c;
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used++;
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buf[used] = '\0';
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}
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void
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append(const char *s, int len)
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{
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makeRoomFor(len);
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memcpy(buf + used, s, len);
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used += len;
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buf[used] = '\0';
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}
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void
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append(const char *s)
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{
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append(s, strlen(s));
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}
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char *
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getBytes()
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{
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return buf;
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}
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};
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}; // namespace android
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#endif
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