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115 lines
2.4 KiB
115 lines
2.4 KiB
/*
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* Parser.h
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*
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* Created on: 21.11.2012
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* Author: Gereon Kremer
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*/
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#ifndef MRMC_PARSER_PARSER_H_
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#define MRMC_PARSER_PARSER_H_
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#include "src/utility/OsDetection.h"
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <iostream>
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#include <boost/integer/integer_mask.hpp>
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#include "src/exceptions/FileIoException.h"
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#include "src/exceptions/WrongFileFormatException.h"
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namespace mrmc {
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/*!
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* @brief Contains all file parser and helper classes.
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*
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* This namespace contains everything needed to load data files (like
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* atomic propositions, transition systems, formulas, ...) including
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* methods for efficient file access (see MappedFile).
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*/
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namespace parser {
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/*!
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* @brief Opens a file and maps it to memory providing a char*
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* containing the file content.
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*
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* This class is a very simple interface to read files efficiently.
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* The given file is opened and mapped to memory using mmap().
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* The public member data is a pointer to the actual file content.
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* Using this method, the kernel will take care of all buffering. This is
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* most probably much more efficient than doing this manually.
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*/
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#if !defined LINUX && !defined MACOSX && !defined WINDOWS
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#error Platform not supported
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#endif
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class MappedFile {
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private:
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#if defined LINUX || defined MACOSX
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/*!
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* @brief file descriptor obtained by open().
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*/
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int file;
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#elif defined WINDOWS
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HANDLE file;
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HANDLE mapping;
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#endif
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#if defined LINUX
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/*!
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* @brief stat information about the file.
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*/
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struct stat64 st;
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#elif defined MACOSX
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/*!
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* @brief stat information about the file.
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*/
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struct stat st;
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#elif defined WINDOWS
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/*!
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* @brief stat information about the file.
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*/
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struct __stat64 st;
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#endif
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public:
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/*!
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* @brief pointer to actual file content.
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*/
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char* data;
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/*!
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* @brief pointer to end of file content.
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*/
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char* dataend;
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/*!
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* @brief Constructor of MappedFile.
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*/
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MappedFile(const char* filename);
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/*!
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* @brief Destructor of MappedFile.
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*/
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~MappedFile();
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};
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class Parser {
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protected:
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/*!
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* @brief Parses integer and checks, if something has been parsed.
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*/
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uint_fast64_t checked_strtol(const char* str, char** end);
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/*!
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* @brief Skips common whitespaces in a string.
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*/
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char* trimWhitespaces(char* buf);
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};
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} // namespace parser
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} // namespace mrmc
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#endif /* MRMC_PARSER_PARSER_H_ */
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