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/* -*- c++ -*- */ |
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#ifndef UTILS_SYSTEMUTILITIES_HPP |
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#define UTILS_SYSTEMUTILITIES_HPP |
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#include "config.h" |
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#include <string> |
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#include <algorithm> |
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#include "utils/Report.hpp" |
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namespace OpenMD { |
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/// Changes to the actual directory of the file name |
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bool changeDirectory(const std::string &fileName); |
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/// Test if the file is accessible |
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bool isAccessible(const std::string &fileName); |
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void splitFileName(const std::string &filename, std::string &dirname, |
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std::string &basename, std::string &extension); |
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unsigned int getFileSize(const std::string &filename); |
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/// Does an abort, calling the adequate abort system function |
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void openMDAbort(); |
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/// Sets function to be called when calling OpenMDAbort() |
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void setopenMDAbort(void (*abortFunction)()); |
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/// Does an exit, calling the adequate exit system function |
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void openMDExit(); |
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/// Sets function to be called when calling OpenMDxit() |
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void setOpenMDExit(void (*exitFunction)()); |
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/// Initiates the serialization block, e.g., used by Report |
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void openMDStartSerial(bool exludeMaster); |
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/// Sets function to be called to start serialization |
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void setOpenMDStartSerial(void (*startSerialFunction)(bool)); |
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/// Finializes the serialization block |
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void openMDEndSerial(bool exludeMaster); |
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/// Sets function to be called to end serialization |
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void setopenMDEndSerial(void (*endSerialFunction)(bool)); |
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/// Return an resolved absolute path |
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std::string getCanonicalPath(const std::string &path); |
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/// Swap function to change endianess |
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template<typename T> inline |
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void swapBytes(T &t) { |
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if (sizeof(T) % 2 != 0) |
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Report::report << Report::error << "Cannot swap types of uneven size." << |
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Report::endr; |
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char *res = reinterpret_cast<char *> (&t); |
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std::reverse(res, res + sizeof(T)); |
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} |
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/// Shift left of four Real's |
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inline void shift(RealType &a, RealType &b, RealType &c, const RealType d) { |
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a = b; b = c; c = d; |
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} |
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/// bool constant if the machine is littleEndian or not |
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extern const bool ISLITTLEENDIAN; |
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/// Clears a container explicitly |
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template<typename T> inline |
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void realclear(T &t) {T tmp; t.swap(tmp);} |
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/// Shrinks the capacity of a container explicitly |
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template<typename T> inline |
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void shrink(T &t) {T tmp(t); t.swap(tmp);} |
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namespace SystemUtilities { |
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bool unlink(const std::string &path); |
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void rename(const std::string &src, const std::string &dst); |
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}; |
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} |
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#endif /* SYSTEMUTILITIES_H */ |
