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include README.md
rator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ } 
/*
// Copyright (c) 2010-2017 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
*/

#include <cstdlib>

#include "memreader.hpp"
#include "mappedfile.hpp"
#include "stream3.hpp"

MemReader::MemReader(MappedFile *file, const vector<size_t> &offsets)
{
	initRanges(file->getMapBeg(), file->getMapEnd(), offsets);
}

bool MemReader::read(Stream3 *stream)
{
	if (ranges.empty())
		return false;

	readStream(stream, getLowestID());
	removeEmptyRanges();
	return true;
}

uint32_t MemReader::getLowestID() const
{
	uint32_t lowestID = UINT32_MAX;
	uint32_t rangeID;

	for (size_t i = 0; i < ranges.size(); ++i) {
		rangeID = Stream3::getIDFromMem(ranges[i].first);
		if (rangeID < lowestID)
			lowestID = rangeID;
	}
	return lowestID;
}

void MemReader::readStream(Stream3 *stream, uint32_t id)
{
	stream->removeAllPackets();
	stream->setID(id);
	
	size_t len = 0;
	for (size_t i = 0; i < ranges.size(); ++i) {
		if (Stream3::getIDFromMem(ranges[i].first) == id) {
			stream->addFromMemory(ranges[i].first, &len);
			ranges[i].first += len;
		}
	}
}

void MemReader::removeEmptyRanges()
{
	vector<pair <uint8_t *, uint8_t *> > original = ranges;
	size_t destinationIdx = 0;

	for (size_t i = 0; i < original.size(); ++i) {
		if (original[i].first < original[i].second)
			ranges[destinationIdx++] = original[i];
	}
	ranges.resize(destinationIdx);
}

void MemReader::initRanges(uint8_t *begin, uint8_t *end, const vector<size_t> &offsets)
{
	ranges.resize(offsets.size());

	totalLength = 0;
	for (size_t i = 0; i < offsets.size(); ++i) {
		ranges[i].first = begin + offsets[i];
		if (i != offsets.size() - 1)
			ranges[i].second = begin + offsets[i + 1];
		else
			ranges[i].second = end;
		totalLength += ranges[i].second - ranges[i].first;
	}
	removeEmptyRanges();
}

size_t MemReader::getRangeLengths() const
{
	size_t total = 0;

	for (size_t i = 0; i < ranges.size(); ++i) {
		total += ranges[i].second - ranges[i].first;
	}
	return total;
}

size_t MemReader::consumed() const
{
	return totalLength - getRangeLengths();
}