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/* /////////////////////////////////////////////////////////////////////////
* File: unixstl/filesystem/readdir_sequence.hpp
*
* Purpose: readdir_sequence class.
*
* Created: 15th January 2002
* Updated: 4th June 2012
*
* Home: http://stlsoft.org/
*
* Copyright (c) 2002-2012, Matthew Wilson and Synesis Software
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name(s) of Matthew Wilson and Synesis Software nor the names of
* any contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ////////////////////////////////////////////////////////////////////// */
/** \file unixstl/filesystem/readdir_sequence.hpp
*
* \brief [C++ only] Definition of the unixstl::readdir_sequence class
* (\ref group__library__filesystem "File System" Library).
*/
#ifndef UNIXSTL_INCL_UNIXSTL_FILESYSTEM_HPP_READDIR_SEQUENCE
#define UNIXSTL_INCL_UNIXSTL_FILESYSTEM_HPP_READDIR_SEQUENCE
#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
# define UNIXSTL_VER_UNIXSTL_FILESYSTEM_HPP_READDIR_SEQUENCE_MAJOR 5
# define UNIXSTL_VER_UNIXSTL_FILESYSTEM_HPP_READDIR_SEQUENCE_MINOR 2
# define UNIXSTL_VER_UNIXSTL_FILESYSTEM_HPP_READDIR_SEQUENCE_REVISION 1
# define UNIXSTL_VER_UNIXSTL_FILESYSTEM_HPP_READDIR_SEQUENCE_EDIT 133
#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
/* /////////////////////////////////////////////////////////////////////////
* Includes
*/
#ifndef UNIXSTL_INCL_UNIXSTL_H_UNIXSTL
# include <unixstl/unixstl.h>
#endif /* !UNIXSTL_INCL_UNIXSTL_H_UNIXSTL */
#ifndef UNIXSTL_INCL_UNIXSTL_FILESYSTEM_HPP_FILESYSTEM_TRAITS
# include <unixstl/filesystem/filesystem_traits.hpp>
#endif /* !UNIXSTL_INCL_UNIXSTL_FILESYSTEM_HPP_FILESYSTEM_TRAITS */
#ifndef UNIXSTL_INCL_UNIXSTL_FILESYSTEM_HPP_FILE_PATH_BUFFER
# include <unixstl/filesystem/file_path_buffer.hpp>
#endif /* !UNIXSTL_INCL_UNIXSTL_FILESYSTEM_HPP_FILE_PATH_BUFFER */
#ifndef UNIXSTL_INCL_UNIXSTL_HPP_ERROR_UNIX_EXCEPTIONS
# include <unixstl/error/exceptions.hpp>
#endif /* !UNIXSTL_INCL_UNIXSTL_ERROR_HPP_UNIX_EXCEPTIONS */
#if defined(PATH_MAX)
# ifndef STLSOFT_INCL_STLSOFT_STRING_HPP_STATIC_STRING
# include <stlsoft/string/static_string.hpp>
# endif /* !STLSOFT_INCL_STLSOFT_STRING_HPP_STATIC_STRING */
#else /* ? PATH_MAX */
# ifndef STLSOFT_INCL_STLSOFT_STRING_HPP_SIMPLE_STRING
# include <stlsoft/string/simple_string.hpp>
# endif /* !STLSOFT_INCL_STLSOFT_STRING_HPP_SIMPLE_STRING */
#endif /* !PATH_MAX */
#ifndef STLSOFT_INCL_STLSOFT_UTIL_STD_HPP_ITERATOR_HELPER
# include <stlsoft/util/std/iterator_helper.hpp>
#endif /* !STLSOFT_INCL_STLSOFT_UTIL_STD_HPP_ITERATOR_HELPER */
#ifndef STLSOFT_INCL_STLSOFT_COLLECTIONS_UTIL_HPP_COLLECTIONS
# include <stlsoft/collections/util/collections.hpp>
#endif /* !STLSOFT_INCL_STLSOFT_COLLECTIONS_UTIL_HPP_COLLECTIONS */
#ifndef STLSOFT_INCL_H_UNISTD
# define STLSOFT_INCL_H_UNISTD
# include <unistd.h>
#endif /* !STLSOFT_INCL_H_UNISTD */
#ifndef STLSOFT_INCL_SYS_H_TYPES
# define STLSOFT_INCL_SYS_H_TYPES
# include <sys/types.h>
#endif /* !STLSOFT_INCL_SYS_H_TYPES */
#ifndef STLSOFT_INCL_SYS_H_STAT
# define STLSOFT_INCL_SYS_H_STAT
# include <sys/stat.h>
#endif /* !STLSOFT_INCL_SYS_H_STAT */
#ifndef STLSOFT_INCL_H_DIRENT
# define STLSOFT_INCL_H_DIRENT
# include <dirent.h>
#endif /* !STLSOFT_INCL_H_DIRENT */
/* /////////////////////////////////////////////////////////////////////////
* Namespace
*/
/* No STLSoft namespaces means no UNIXSTL namespaces */
#ifdef _STLSOFT_NO_NAMESPACES
# define _UNIXSTL_NO_NAMESPACES
#endif /* _STLSOFT_NO_NAMESPACES */
/* No UNIXSTL namespaces means no unixstl namespace */
#ifdef _UNIXSTL_NO_NAMESPACES
# define _UNIXSTL_NO_NAMESPACE
#endif /* _UNIXSTL_NO_NAMESPACES */
#ifndef _UNIXSTL_NO_NAMESPACE
# if defined(_STLSOFT_NO_NAMESPACE) || \
defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
/* There is no stlsoft namespace, so must define ::unixstl */
namespace unixstl
{
# else
/* Define stlsoft::unixstl_project */
namespace stlsoft
{
namespace unixstl_project
{
# endif /* _STLSOFT_NO_NAMESPACE */
#endif /* !_UNIXSTL_NO_NAMESPACE */
/* /////////////////////////////////////////////////////////////////////////
* Classes
*/
/** \brief Exception class thrown by unixstl::readdir_sequence.
*
* \ingroup group__library__filesystem
*/
class readdir_sequence_exception
: public unix_exception
{
/// \name Types
/// @{
public:
typedef unix_exception parent_class_type;
typedef readdir_sequence_exception class_type;
typedef parent_class_type::string_type string_type;
/// @}
/// \name Construction
/// @{
public:
readdir_sequence_exception(us_char_a_t const* message, us_int_t erno)
: parent_class_type(message, erno)
, Directory()
{}
readdir_sequence_exception(us_char_a_t const* message, us_int_t erno, us_char_a_t const* directory)
: parent_class_type(message, erno)
#if 0
, Directory(directory)
#else /* ? 0 */
, Directory(stlsoft::c_str_ptr(directory))
#endif /* 0 */
{}
~readdir_sequence_exception() stlsoft_throw_0()
{}
private:
class_type& operator =(class_type const&);
/// @}
/// \name Fields
/// @{
public:
/// The name of this field is subject to change in a future revision
string_type const Directory;
/// @}
};
/** \brief STL-like readonly sequence based on directory contents
*
* \ingroup group__library__filesystem
*
* This class presents and STL-like readonly sequence interface to allow the
* iteration over the contents of a directory.
*/
class readdir_sequence
: public stlsoft_ns_qual(stl_collection_tag)
{
/// \name Member Types
/// @{
public:
/// \brief This class
typedef readdir_sequence class_type;
private:
// These make it easy to move to a template, if ever needed
typedef us_char_a_t char_type;
typedef filesystem_traits<char_type> traits_type;
public:
/// \brief The size type
typedef us_size_t size_type;
/// \brief The non-mutating (const) iterator type
class const_iterator;
/// \brief The value type
#if defined(UNIXSTL_READDIR_SEQUENCE_OLD_VALUE_TYPE)
typedef struct dirent const* value_type;
#else /* ? UNIXSTL_READDIR_SEQUENCE_OLD_VALUE_TYPE */
typedef char_type const* value_type;
#endif /* UNIXSTL_READDIR_SEQUENCE_OLD_VALUE_TYPE */
/// \brief The flags type
typedef us_int_t flags_type;
public:
#if defined(PATH_MAX)
typedef stlsoft_ns_qual(basic_static_string)< char_type
, PATH_MAX
> string_type;
#else /* ? PATH_MAX */
typedef stlsoft_ns_qual(basic_simple_string)< char_type
> string_type;
#endif /* !PATH_MAX */
/// @}
/// \name Member Constants
/// @{
public:
enum
{
includeDots = 0x0008 /*!< \brief Requests that dots directories be included in the returned sequence */
, directories = 0x0010 /*!< \brief Causes the search to include directories */
, files = 0x0020 /*!< \brief Causes the search to include files */
#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
, sockets = 0x0000 /*!< CURRENTLY UNSUPPORTED : DO NOT USE! This exists for forward compatibility with STLSoft 1.10 test programs, and is subject to change in the future. A future version will support sockets, but it may not use this enumerator name. */
#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
, typeMask = 0x0070
, fullPath = 0x0100 /*!< \brief Each file entry is presented as a full path relative to the search directory. */
, absolutePath = 0x0200 /*!< \brief The search directory is converted to an absolute path. */
};
/// @}
/// \name Construction
/// @{
public:
/// \brief Constructs a sequence according to the given criteria
///
/// The constructor initialises a readdir_sequence instance on the given
/// directory with the given flags.
///
/// \param directory The directory whose contents are to be searched
/// \param flags Flags to alter the behaviour of the search
///
/// \note The \c flags parameter defaults to <code>directories | files</code> because
/// this reflects the default behaviour of \c readdir(), and also because it is the
/// most efficient.
template <ss_typename_param_k S>
readdir_sequence(S const& directory, flags_type flags = directories | files)
: m_flags(validate_flags_(flags))
, m_directory(prepare_directory_(stlsoft_ns_qual(c_str_ptr)(directory), flags))
{}
/// @}
/// \name Iteration
/// @{
public:
/// \brief Begins the iteration
///
/// \return An iterator representing the start of the sequence
const_iterator begin() const;
/// \brief Ends the iteration
///
/// \return An iterator representing the end of the sequence
const_iterator end() const;
/// @}
/// \name Attributes
/// @{
public:
/// \brief Indicates whether the search sequence is empty
us_bool_t empty() const;
/// \brief The search directory
///
/// \note The value returned by this method always has a trailing path name separator, so
/// you can safely concatenate this with the value returned by the iterator's operator *()
/// with minimal fuss.
string_type const& get_directory() const;
/// \brief The flags used by the sequence
///
/// \note This value is the value used by the sequence, which may, as a result of the
/// determination of defaults, be different from those specified in its constructor. In
/// other words, if <code>includeDots</code> is specified, this function
/// will return <code>includeDots | directories | files</code>
flags_type get_flags() const;
/// @}
/// \name Implementation
/// @{
private:
/// \brief Ensures that the flags are correct
static flags_type validate_flags_(flags_type flags);
/// \brief Prepares the directory, according to the given flags
static string_type prepare_directory_(char_type const* directory, flags_type flags);
/// @}
/// \name Members
/// @{
private:
const flags_type m_flags;
const string_type m_directory;
/// @}
/// \name Not to be implemented
/// @{
private:
readdir_sequence(class_type const&);
class_type& operator =(class_type const&);
/// @}
};
/** \brief Iterator for the \link unixstl::readdir_sequence readdir_sequence\endlink class.
*
* \ingroup group__library__filesystem
*
* This class performs as a non-mutating iterator (aka const iterator) for the
* readdir_sequence class.
*/
class readdir_sequence::const_iterator
: public stlsoft_ns_qual(iterator_base)<unixstl_ns_qual_std(input_iterator_tag)
, readdir_sequence::value_type
, us_ptrdiff_t
, void // By-Value Temporary reference
, readdir_sequence::value_type // By-Value Temporary reference
>
{
/// \name Members
/// @{
private:
typedef readdir_sequence::string_type string_type;
public:
/// \brief The class type
typedef const_iterator class_type;
/// \brief The value type
typedef readdir_sequence::value_type value_type;
/// \brief The flags type
typedef readdir_sequence::flags_type flags_type;
// typedef value_type* pointer;
// typedef value_type& reference;
/// @}
/// \name Construction
/// @{
private:
friend class readdir_sequence;
/// \brief Construct an instance and begin a sequence iteration on the given dir.
const_iterator(DIR* dir, string_type const& directory, flags_type flags);
public:
/// \brief Default constructor
const_iterator();
/// \brief Copy constructor
const_iterator(class_type const& rhs);
/// \brief Release the search handle
~const_iterator() stlsoft_throw_0();
/// \brief Copy assignment operator
class_type const& operator =(class_type const& rhs);
/// @}
/// \name Input Iterator Methods
/// @{
public:
/// \brief Returns the value representative
value_type operator *() const;
/// \brief Moves the iteration on to the next point in the sequence, or end() if
/// the sequence is exhausted
class_type& operator ++();
/// \brief Post-increment form of operator ++().
///
/// \note Because this version uses a temporary on which to call the
/// pre-increment form it is thereby less efficient, and should not be used
/// except where post-increment semantics are required.
class_type operator ++(int);
/// \brief Compares \c this for equality with \c rhs
///
/// \param rhs The instance against which to test
/// \retval true if the iterators are equivalent
/// \retval false if the iterators are not equivalent
bool equal(class_type const& rhs) const;
/// @}
/// \name Members
/// @{
private:
struct shared_handle;
shared_handle* m_handle; // The DIR handle, shared with other iterator instances
struct dirent* m_entry; // The current entry
flags_type m_flags; // flags. (Only non-const, to allow copy assignment)
string_type m_scratch; // Holds the directory, and is a scratch area
size_type m_dirLen; // The length of the directory
/// @}
};
#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
struct readdir_sequence::const_iterator::shared_handle
{
/// \name Member Types
/// @{
public:
typedef shared_handle class_type;
typedef DIR* handle_type;
/// @}
/// \name Members
/// @{
public:
handle_type m_dir;
private:
ss_sint32_t m_refCount;
/// @}
/// \name Construction
/// @{
public:
ss_explicit_k shared_handle(handle_type h)
: m_dir(h)
, m_refCount(1)
{}
ss_sint32_t AddRef()
{
return ++m_refCount;
}
ss_sint32_t Release()
{
ss_sint32_t rc = --m_refCount;
if(0 == rc)
{
delete this;
}
return rc;
}
#if defined(STLSOFT_CF_COMPILER_WARNS_NO_PUBLIC_DTOR)
protected:
#else /* ? STLSOFT_CF_COMPILER_WARNS_NO_PUBLIC_DTOR */
private:
#endif /* STLSOFT_CF_COMPILER_WARNS_NO_PUBLIC_DTOR */
~shared_handle() stlsoft_throw_0()
{
UNIXSTL_MESSAGE_ASSERT("Shared search handle being destroyed with outstanding references!", 0 == m_refCount);
if(NULL != m_dir)
{
::closedir(m_dir);
}
}
/// @}
/// \name Not to be implemented
/// @{
private:
shared_handle(class_type const&);
class_type& operator =(class_type const&);
/// @}
};
#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
////////////////////////////////////////////////////////////////////////////
// Operators
inline us_bool_t operator ==( readdir_sequence::const_iterator const& lhs
, readdir_sequence::const_iterator const& rhs)
{
return lhs.equal(rhs);
}
inline us_bool_t operator !=( readdir_sequence::const_iterator const& lhs
, readdir_sequence::const_iterator const& rhs)
{
return !lhs.equal(rhs);
}
////////////////////////////////////////////////////////////////////////////
// Unit-testing
#ifdef STLSOFT_UNITTEST
# include "./unittest/readdir_sequence_unittest_.h"
#endif /* STLSOFT_UNITTEST */
/* /////////////////////////////////////////////////////////////////////////
* Implementation
*/
#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
// readdir_sequence
inline /* static */ readdir_sequence::flags_type readdir_sequence::validate_flags_(readdir_sequence::flags_type flags)
{
const flags_type validFlags = 0
| includeDots
| 0
| directories
| files
| 0
| fullPath
| absolutePath
| 0;
UNIXSTL_MESSAGE_ASSERT("Specification of unrecognised/unsupported flags", flags == (flags & validFlags));
STLSOFT_SUPPRESS_UNUSED(validFlags);
if(0 == (flags & (directories | files)))
{
flags |= (directories | files);
}
return flags;
}
inline /* static */ readdir_sequence::string_type readdir_sequence::prepare_directory_(char_type const* directory, readdir_sequence::flags_type flags)
{
if( NULL == directory ||
'\0' == *directory)
{
static const char_type s_thisDir[] = { '.', '\0' };
directory = s_thisDir;
}
basic_file_path_buffer<char_type> path;
size_type n;
if(absolutePath & flags)
{
n = traits_type::get_full_path_name(directory, path.size() - 1u, &path[0]);
if(0 == n)
{
#ifdef STLSOFT_CF_EXCEPTION_SUPPORT
STLSOFT_THROW_X(readdir_sequence_exception("Failed to enumerate directory", errno, directory));
#else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
traits_type::char_copy(&path[0], directory, n);
path[n] = \'0';
#endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
}
}
else
{
n = traits_type::str_len(directory);
traits_type::char_copy(&path[0], directory, n);
path[n] = '\0';
}
traits_type::ensure_dir_end(&path[n - 1]);
directory = path.c_str();
return directory;
}
inline readdir_sequence::const_iterator readdir_sequence::begin() const
{
DIR* dir = ::opendir(m_directory.c_str());
if(NULL == dir)
{
#ifdef STLSOFT_CF_EXCEPTION_SUPPORT
STLSOFT_THROW_X(readdir_sequence_exception("Failed to enumerate directory", errno, m_directory.c_str()));
#else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
return const_iterator();
#endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
}
#ifdef STLSOFT_CF_EXCEPTION_SUPPORT
try
{
#endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
return const_iterator(dir, m_directory, m_flags);
#ifdef STLSOFT_CF_EXCEPTION_SUPPORT
}
catch(...)
{
::closedir(dir);
throw;
}
#endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
}
inline readdir_sequence::const_iterator readdir_sequence::end() const
{
return const_iterator();
}
inline us_bool_t readdir_sequence::empty() const
{
return begin() != end();
}
inline readdir_sequence::string_type const& readdir_sequence::get_directory() const
{
return m_directory;
}
inline readdir_sequence::flags_type readdir_sequence::get_flags() const
{
return m_flags;
}
// readdir_sequence::const_iterator;
inline readdir_sequence::const_iterator::const_iterator(DIR* dir, readdir_sequence::string_type const& directory, readdir_sequence::flags_type flags)
: m_handle(new shared_handle(dir))
, m_entry(NULL)
, m_flags(flags)
, m_scratch(directory)
, m_dirLen(directory.length())
{
UNIXSTL_ASSERT(traits_type::has_dir_end(m_scratch.c_str()));
if(NULL == m_handle)
{
::closedir(dir);
}
else
{
operator ++();
}
}
inline readdir_sequence::const_iterator::const_iterator()
: m_handle(NULL)
, m_entry(NULL)
, m_flags(0)
, m_scratch()
, m_dirLen(0)
{}
inline readdir_sequence::const_iterator::const_iterator(class_type const& rhs)
: m_handle(rhs.m_handle)
, m_entry(rhs.m_entry)
, m_flags(rhs.m_flags)
, m_scratch(rhs.m_scratch)
, m_dirLen(rhs.m_dirLen)
{
if(NULL != m_handle)
{
m_handle->AddRef();
}
}
inline readdir_sequence::const_iterator::~const_iterator() stlsoft_throw_0()
{
if(NULL != m_handle)
{
m_handle->Release();
}
}
inline readdir_sequence::const_iterator::class_type const& readdir_sequence::const_iterator::operator =(readdir_sequence::const_iterator::class_type const& rhs)
{
shared_handle* this_handle = m_handle;
m_handle = rhs.m_handle;
m_entry = rhs.m_entry;
m_flags = rhs.m_flags;
m_scratch = rhs.m_scratch;
m_dirLen = rhs.m_dirLen;
if(NULL != m_handle)
{
m_handle->AddRef();
}
if(NULL != this_handle)
{
this_handle->Release();
}
return *this;
}
inline readdir_sequence::const_iterator::value_type readdir_sequence::const_iterator::operator *() const
{
UNIXSTL_MESSAGE_ASSERT( "Dereferencing invalid iterator", NULL != m_entry);
#if defined(UNIXSTL_READDIR_SEQUENCE_OLD_VALUE_TYPE)
return m_entry;
#else /* ? UNIXSTL_READDIR_SEQUENCE_OLD_VALUE_TYPE */
return (readdir_sequence::fullPath & m_flags) ? m_scratch.c_str() : m_entry->d_name;
#endif /* UNIXSTL_READDIR_SEQUENCE_OLD_VALUE_TYPE */
}
inline readdir_sequence::const_iterator::class_type& readdir_sequence::const_iterator::operator ++()
{
UNIXSTL_MESSAGE_ASSERT( "Incrementing invalid iterator", NULL != m_handle);
for(;;)
{
errno = 0;
m_entry = ::readdir(m_handle->m_dir);
if(NULL == m_entry)
{
if(0 != errno)
{
#ifdef STLSOFT_CF_EXCEPTION_SUPPORT
m_scratch.resize(m_dirLen);
STLSOFT_THROW_X(readdir_sequence_exception("Partial failure of directory enumeration", errno, m_scratch.c_str()));
#endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
}
}
else
{
UNIXSTL_ASSERT(NULL != m_entry->d_name);
// Check for dots
if(0 == (m_flags & includeDots))
{
if(traits_type::is_dots(m_entry->d_name))
{
continue; // Don't want dots; skip it
}
}
// If either
//
// - eliding files or directories, or
// - requiring absolute path
//
// then need to construct it.
#ifdef _WIN32
if((m_flags & (fullPath | directories | files)) != (directories | files))
#endif /* _WIN32 */
{
// Truncate the scratch to the directory path, ...
m_scratch.resize(m_dirLen);
// ... and add the file
m_scratch += m_entry->d_name;
}
#ifdef _WIN32
if((m_flags & (directories | files)) != (directories | files))
#endif /* _WIN32 */
{
// Now need to process the file, by using stat
traits_type::stat_data_type st;
if(!traits_type::stat(m_scratch.c_str(), &st))
{
// Failed to get info from entry. Must assume it is
// dead, so skip it
continue;
}
else
{
#ifndef _WIN32
// Test for sockets : this version does not support sockets,
// but does elide them from the search results.
if(traits_type::is_socket(&st))
{
continue;
}
#endif /* !_WIN32 */
if(m_flags & directories) // Want directories
{
if(traits_type::is_directory(&st))
{
// It is a directory, so accept it
break;
}
}
if(m_flags & files) // Want files
{
if(traits_type::is_file(&st))
{
// It is a file, so accept it
break;
}
}
continue; // Not a match, so skip this entry
}
}
}
break;
}
if(NULL == m_entry)
{
UNIXSTL_ASSERT(NULL != m_handle);
m_handle->Release();
m_handle = NULL;
}
return *this;
}
inline readdir_sequence::const_iterator::class_type readdir_sequence::const_iterator::operator ++(int)
{
class_type ret(*this);
operator ++();
return ret;
}
inline bool readdir_sequence::const_iterator::equal(readdir_sequence::const_iterator::class_type const& rhs) const
{
UNIXSTL_ASSERT(NULL == m_handle || NULL == rhs.m_handle || m_handle->m_dir == rhs.m_handle->m_dir);
return m_entry == rhs.m_entry;
}
#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
/* ////////////////////////////////////////////////////////////////////// */
#ifndef _UNIXSTL_NO_NAMESPACE
# if defined(_STLSOFT_NO_NAMESPACE) || \
defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
} // namespace unixstl
# else
} // namespace unixstl_project
} // namespace stlsoft
# endif /* _STLSOFT_NO_NAMESPACE */
#endif /* !_UNIXSTL_NO_NAMESPACE */
/* ////////////////////////////////////////////////////////////////////// */
#endif /* !UNIXSTL_INCL_UNIXSTL_FILESYSTEM_HPP_READDIR_SEQUENCE */
/* ///////////////////////////// end of file //////////////////////////// */
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