Mercurial > hg > truffle
view agent/src/os/win32/Buffer.cpp @ 2778:2ac7b30b7290
Enabled new block finding algorithm.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
---|---|
date | Tue, 24 May 2011 21:39:45 +0200 |
parents | c18cbe5936b8 |
children |
line wrap: on
line source
/* * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "Buffer.hpp" #include <string.h> Buffer::Buffer(int bufSize) { buf = new char[bufSize]; sz = bufSize; fill = 0; drain = 0; } Buffer::~Buffer() { delete[] buf; } char* Buffer::fillPos() { return buf + fill; } int Buffer::remaining() { return sz - fill; } int Buffer::size() { return sz; } bool Buffer::incrFillPos(int amt) { if (fill + amt >= sz) { return false; } fill += amt; return true; } int Buffer::readByte() { if (drain < fill) { return buf[drain++] & 0xFF; } else { return -1; } } int Buffer::readBytes(char* data, int len) { int numRead = 0; while (numRead < len) { int c = readByte(); if (c < 0) break; data[numRead++] = (char) c; } return numRead; } char* Buffer::drainPos() { return buf + drain; } int Buffer::drainRemaining() { return fill - drain; } bool Buffer::incrDrainPos(int amt) { if (drainRemaining() < amt) { return false; } drain += amt; return true; } void Buffer::compact() { // Copy down data memmove(buf, buf + drain, fill - drain); // Adjust positions fill -= drain; drain = 0; }