120ca87015
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
435 lines
14 KiB
C++
435 lines
14 KiB
C++
/** \file
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This file and directory.h are borrowed from the dir_it library
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available at http://www.boost.org. dir_it is a directory iterator.
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*/
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// -*-C++-*- directory.cc
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// <!!---------------------------------------------------------------------->
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// <!! Copyright (C) 1998 Dietmar Kuehl, Claas Solutions GmbH >
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// <!!>
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// <!! Permission to use, copy, modify, distribute and sell this >
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// <!! software for any purpose is hereby granted without fee, provided >
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// <!! that the above copyright notice appears in all copies and that >
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// <!! both that copyright notice and this permission notice appear in >
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// <!! supporting documentation. Dietmar Kuehl and Claas Solutions make no >
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// <!! representations about the suitability of this software for any >
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// <!! purpose. It is provided "as is" without express or implied warranty. >
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// <!!---------------------------------------------------------------------->
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// Author: Dietmar Kuehl dietmar.kuehl@claas-solutions.de
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// Title: Implementation of the directory iterator
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// Version: $Name: $ $Id: directory.cpp,v 1.2 2006/01/30 13:23:59 wmayer Exp $
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// --------------------------------------------------------------------------
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#include "meta-iostreams.h"
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#include "directory.h"
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#if defined(unix) || defined(__unix) || defined(__unix__) || defined(__APPLE__)
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# define BOOST_UNIX 1
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#elif defined(_WINDOWS) || defined(__MINGW32__) || defined (_MSC_VER)
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# define BOOST_WINNT 1
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#endif
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// --------------------------------------------------------------------------
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// The POSIX version uses the functions opendir(), readdir(), and closdir()
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// to find directory entries. In addition, stat() is used to find out
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// about specific file attributes.
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#if defined(BOOST_UNIX)
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#ifndef __USE_BSD
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#define __USE_BSD
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#endif
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#include <sys/stat.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <pwd.h>
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#include <grp.h>
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struct boost::filesystem::dir_it::representation
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{
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representation():
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m_handle(0),
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m_refcount(1),
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m_stat_p(false)
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{
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}
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representation(std::string const &dirname):
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m_handle(opendir(dirname.c_str())),
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m_refcount(1),
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m_directory(dirname),
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m_stat_p(false)
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{
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if( m_directory.size() == 0 )
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m_directory = "./" ;
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if (m_directory[m_directory.size() - 1] != '/')
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m_directory += '/';
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operator++ ();
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}
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~representation() { if ( m_handle ) closedir(m_handle); }
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representation *reference()
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{
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++m_refcount;
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return this;
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}
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representation *release() { return --m_refcount? 0: this; }
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representation &operator++()
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{
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if (m_handle)
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{
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m_stat_p = false;
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dirent *rc = readdir(m_handle);
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if (rc != 0)
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m_current = rc->d_name;
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else
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{
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m_current = "";
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closedir(m_handle);
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m_handle = 0;
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}
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}
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return *this;
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}
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bool operator== (representation const &rep) const
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{
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return (m_handle == 0) == (rep.m_handle == 0);
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}
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std::string const &operator* () { return m_current; }
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struct stat &get_stat()
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{
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if (!m_stat_p)
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stat( (m_directory + m_current).c_str(), &m_stat);
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return m_stat;
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}
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void set_mode(mode_t m, bool nv)
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{
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if (((get_stat().st_mode & m) == 0) == nv)
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chmod((m_directory + m_current).c_str(), get_stat().st_mode ^ m);
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}
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void change_owner(uid_t uid) { chown((m_directory + m_current).c_str(), uid, get_stat().st_gid); }
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void change_group(gid_t gid) { chown((m_directory + m_current).c_str(), get_stat().st_uid, gid); }
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private:
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DIR *m_handle;
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int m_refcount;
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std::string m_directory;
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std::string m_current;
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struct stat m_stat;
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bool m_stat_p;
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};
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namespace boost
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{
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namespace filesystem
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{
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template <> bool get<is_link>(dir_it const &it) { return S_ISLNK(it.rep->get_stat().st_mode); }
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template <> bool get<is_regular>(dir_it const &it) { return S_ISREG(it.rep->get_stat().st_mode); }
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template <> bool get<is_directory>(dir_it const &it) { return S_ISDIR(it.rep->get_stat().st_mode); }
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template <> bool get<is_char_device>(dir_it const &it) { return S_ISCHR(it.rep->get_stat().st_mode); }
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template <> bool get<is_block_device>(dir_it const &it) { return S_ISBLK(it.rep->get_stat().st_mode); }
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template <> bool get<is_fifo>(dir_it const &it) { return S_ISFIFO(it.rep->get_stat().st_mode); }
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template <> bool get<is_socket>(dir_it const &it) { return S_ISSOCK(it.rep->get_stat().st_mode); }
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template <> bool get<user_read>(dir_it const &it) { return it.rep->get_stat().st_mode & S_IRUSR; }
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template <> void set<user_read>(dir_it const &it, bool nv) { it.rep->set_mode(S_IRUSR, nv); }
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template <> bool get<user_write>(dir_it const &it) { return it.rep->get_stat().st_mode & S_IWUSR; }
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template <> void set<user_write>(dir_it const &it, bool nv) { it.rep->set_mode(S_IWUSR, nv); }
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template <> bool get<user_execute>(dir_it const &it) { return it.rep->get_stat().st_mode & S_IXUSR; }
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template <> void set<user_execute>(dir_it const &it, bool nv) { it.rep->set_mode(S_IXUSR, nv); }
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template <> bool get<set_uid>(dir_it const &it) { return it.rep->get_stat().st_mode & S_ISUID; }
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template <> void set<set_uid>(dir_it const &it, bool nv) { it.rep->set_mode(S_ISUID, nv); }
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template <> bool get<group_read>(dir_it const &it) { return it.rep->get_stat().st_mode & S_IRGRP; }
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template <> void set<group_read>(dir_it const &it, bool nv) { it.rep->set_mode(S_IRGRP, nv); }
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template <> bool get<group_write>(dir_it const &it) { return it.rep->get_stat().st_mode & S_IWGRP; }
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template <> void set<group_write>(dir_it const &it, bool nv) { it.rep->set_mode(S_IWGRP, nv); }
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template <> bool get<group_execute>(dir_it const &it) { return it.rep->get_stat().st_mode & S_IXGRP; }
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template <> void set<group_execute>(dir_it const &it, bool nv) { it.rep->set_mode(S_IXGRP, nv); }
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template <> bool get<set_gid>(dir_it const &it) { return it.rep->get_stat().st_mode & S_ISGID; }
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template <> void set<set_gid>(dir_it const &it, bool nv) { it.rep->set_mode(S_ISGID, nv); }
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template <> bool get<other_read>(dir_it const &it) { return it.rep->get_stat().st_mode & S_IROTH; }
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template <> void set<other_read>(dir_it const &it, bool nv) { it.rep->set_mode(S_IROTH, nv); }
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template <> bool get<other_write>(dir_it const &it) { return it.rep->get_stat().st_mode & S_IWOTH; }
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template <> void set<other_write>(dir_it const &it, bool nv) { it.rep->set_mode(S_IWOTH, nv); }
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template <> bool get<other_execute>(dir_it const &it) { return it.rep->get_stat().st_mode & S_IXOTH; }
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template <> void set<other_execute>(dir_it const &it, bool nv) { it.rep->set_mode(S_IXOTH, nv); }
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template <> bool get<sticky>(dir_it const &it) { return it.rep->get_stat().st_mode & S_ISVTX; }
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template <> void set<sticky>(dir_it const &it, bool nv) { it.rep->set_mode(S_ISVTX, nv); }
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template <> nlink_t get<links>(dir_it const &it) { return it.rep->get_stat().st_nlink; }
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template <> size_t get<size>(dir_it const &it) { return it.rep->get_stat().st_size; }
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template <> unsigned long get<blocks>(dir_it const &it) { return it.rep->get_stat().st_blocks; }
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template <> unsigned long get<blksize>(dir_it const &it) { return it.rep->get_stat().st_blksize; }
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template <> mtime::value_type get<mtime>(dir_it const &it) { return &it.rep->get_stat().st_mtime; }
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template <> atime::value_type get<atime>(dir_it const &it) { return &it.rep->get_stat().st_atime; }
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template <> ctime::value_type get<ctime>(dir_it const &it) { return &it.rep->get_stat().st_ctime; }
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template <> uid_t get<uid>(dir_it const &it) { return it.rep->get_stat().st_uid; }
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template <> void set<uid>(dir_it const &it, uid_t uid) { it.rep->change_owner(uid); }
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template <> std::string get<uname>(dir_it const &it)
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{
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struct passwd *pw = getpwuid(it.rep->get_stat().st_uid);
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if (pw == 0)
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throw unknown_uid(it.rep->get_stat().st_uid);
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return pw->pw_name;
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}
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template <> void set<uname>(dir_it const &it, std::string name)
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{
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struct passwd *pw = getpwnam(name.c_str());
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if (pw != 0)
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it.rep->change_owner(pw->pw_uid);
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else
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throw unknown_uname(name);
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}
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template <> gid_t get<gid>(dir_it const &it) { return it.rep->get_stat().st_gid; }
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template <> void set<gid>(dir_it const &it, gid_t gid) { it.rep->change_group(gid); }
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template <> std::string get<gname>(dir_it const &it)
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{
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struct group *grp = getgrgid(it.rep->get_stat().st_gid);
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if (grp == 0)
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throw unknown_gid(it.rep->get_stat().st_gid);
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return grp->gr_name;
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}
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template <> void set<gname>(dir_it const &it, std::string name)
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{
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struct group *grp = getgrnam(name.c_str());
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if (grp != 0)
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it.rep->change_group(grp->gr_gid);
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else
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throw unknown_gname(name);
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}
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template <> bool get<is_hidden>(dir_it const &it) { return (*it)[0] == '.'; }
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}
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}
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#elif defined(BOOST_WINNT)
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#include "io.h"
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#include "direct.h"
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struct boost::filesystem::dir_it::representation
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{
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representation():
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m_handle(-1),
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m_refcount(1)
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{
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}
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representation(std::string const &dirname):
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m_handle(_findfirst((dirname + "\\*").c_str(), &m_data)),
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m_refcount(1)
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{
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}
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~representation() { if (m_handle != -1) _findclose(m_handle); }
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representation *reference()
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{
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++m_refcount;
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return this;
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}
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representation *release() { return --m_refcount? 0: this; }
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representation &operator++()
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{
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if (m_handle != -1)
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{
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if (_findnext(m_handle, &m_data) == -1)
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{
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_findclose(m_handle);
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m_handle = -1;
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}
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}
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return *this;
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}
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bool operator== (representation const &rep) const
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{
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return (m_handle == -1) == (rep.m_handle == -1);
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}
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std::string operator* () { return m_data.name; }
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struct _finddata_t const &get_data() const
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{
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return m_data;
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}
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#if 0
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void set_mode(mode_t m, bool nv)
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{
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if (((get_stat().st_mode & m) == 0) == nv)
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chmod((m_directory + m_current).c_str(), get_stat().st_mode ^ m);
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}
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void change_owner(uid_t uid) { chown((m_directory + m_current).c_str(), uid, get_stat().st_gid); }
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void change_group(gid_t gid) { chown((m_directory + m_current).c_str(), get_stat().st_uid, gid); }
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#endif
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private:
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struct _finddata_t m_data;
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long m_handle;
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int m_refcount;
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std::string m_directory;
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};
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namespace boost
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{
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namespace filesystem
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{
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#if defined(__MINGW32__)
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template <> size_t get<size>(dir_it const &it)
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{
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return it.rep->get_data().size;
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}
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template <> mtime::value_type get<mtime>(dir_it const &it)
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{
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return &it.rep->get_data().time_write;
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}
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template <> bool get<is_directory>(dir_it const &it)
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{
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return (it.rep->get_data().attrib & _A_SUBDIR) != 0;
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}
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template <> bool get<is_regular>(dir_it const &it)
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{
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return (it.rep->get_data().attrib & _A_SUBDIR) == 0;
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}
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template <> bool get<is_hidden>(dir_it const &it)
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{
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return (it.rep->get_data().attrib & _A_HIDDEN) != 0;
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}
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template <> bool get<user_read>(dir_it const &it)
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{
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return true;
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}
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template <> bool get<user_write>(dir_it const &it)
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{
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return (it.rep->get_data().attrib & _A_RDONLY) == 0;
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}
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template <> bool get<user_execute>(dir_it const &it)
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{
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std::string name(*it);
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std::string ext(name.substr(name.find_last_of('.')));
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return ext == ".exe" || ext == ".bat";
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}
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#else
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get<size>::operator size::value_type() const
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{
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return m_it.rep->get_data().size;
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}
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get<mtime>::operator mtime::value_type() const
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{
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return &m_it.rep->get_data().time_write;
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}
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get<is_directory>::operator is_directory::value_type() const
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{
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return (m_it.rep->get_data().attrib & _A_SUBDIR) != 0;
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}
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get<is_regular>::operator is_regular::value_type() const
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{
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return (m_it.rep->get_data().attrib & _A_SUBDIR) == 0;
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}
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get<is_hidden>::operator is_hidden::value_type() const
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{
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return (m_it.rep->get_data().attrib & _A_HIDDEN) != 0;
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}
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get<user_read>::operator user_read::value_type() const
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{
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return true;
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}
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get<user_write>::operator user_write::value_type() const
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{
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return (m_it.rep->get_data().attrib & _A_RDONLY) == 0;
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}
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get<user_execute>::operator user_execute::value_type() const
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{
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std::string name(*m_it);
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std::string ext(name.substr(name.find_last_of('.')));
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return ext == ".exe" || ext == ".bat";
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}
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#endif // __MINGW32__
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}
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}
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#endif
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// --------------------------------------------------------------------------
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boost::filesystem::dir_it::dir_it():
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rep(new representation())
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{
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}
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boost::filesystem::dir_it::dir_it(std::string const &dirname):
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rep(new representation(dirname))
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{
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}
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boost::filesystem::dir_it::dir_it(boost::filesystem::dir_it const &it):
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rep(it.rep->reference())
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{
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}
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boost::filesystem::dir_it::~dir_it()
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{
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delete rep->release();
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}
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boost::filesystem::dir_it &boost::filesystem::dir_it::operator= (boost::filesystem::dir_it const &it)
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{
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it.rep->reference();
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delete rep->release();
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rep = it.rep;
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return *this;
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}
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// --------------------------------------------------------------------------
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std::string boost::filesystem::dir_it::operator* () const
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{
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return *(*rep);
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}
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boost::filesystem::dir_it &boost::filesystem::dir_it::operator++ ()
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{
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++(*rep);
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return *this;
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}
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boost::filesystem::dir_it::proxy boost::filesystem::dir_it::operator++ (int)
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{
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std::string rc(*(*rep));
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++(*rep);
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return rc;
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}
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// --------------------------------------------------------------------------
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bool boost::filesystem::dir_it::operator== (boost::filesystem::dir_it const &it) const
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{
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return *rep == *(it.rep);
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}
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bool boost::filesystem::dir_it::operator!= (boost::filesystem::dir_it const &it) const
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{
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return !(*rep == *(it.rep));
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}
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