84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
// DirHelper.cc
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// Copyright (c) 2002 Henrik Kinnunen (fluxgen at users.sourceforge.net)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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// $Id: DirHelper.cc,v 1.2 2003/02/15 01:42:17 fluxgen Exp $
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#include "DirHelper.hh"
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DirHelper::DirHelper(const char *dir):m_dir(0),
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m_num_entries(0) {
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if (dir != 0)
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open(dir);
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}
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DirHelper::~DirHelper() {
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if (m_dir != 0)
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close();
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}
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void DirHelper::rewind() {
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if (m_dir != 0)
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rewinddir(m_dir);
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}
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struct dirent *DirHelper::read() {
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if (m_dir == 0)
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return 0;
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return readdir(m_dir);
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}
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std::string DirHelper::readFilename() {
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dirent *ent = read();
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if (ent == 0)
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return "";
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return (ent->d_name ? ent->d_name : "");
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}
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void DirHelper::close() {
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if (m_dir != 0) {
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closedir(m_dir);
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m_dir = 0;
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m_num_entries = 0;
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}
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}
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bool DirHelper::open(const char *dir) {
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if (dir == 0)
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return false;
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if (m_dir != 0)
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close();
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m_dir = opendir(dir);
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if (m_dir == 0) // successfull loading?
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return false;
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// get number of entries
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while (read())
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m_num_entries++;
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rewind(); // go back to start
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return true;
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}
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