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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<link rel="up" title="FatFs" href="../00index_j.html">
<link rel="alternate" hreflang="en" title="English" href="../en/getfree.html">
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<title>FatFs - f_getfree</title>
</head>
<body>
<div class="para func">
<h2>f_getfree</h2>
<p>�{�����[����̋̈�̃T�C�Y���擾���܂��B</p>
<pre>
FRESULT f_getfree (
const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] �Ώۃh���C�u���w�肵�܂� */</span>
DWORD* <span class="arg">nclst</span>, <span class="c">/* [OUT] �N���X�^�����i�[����ϐ��ւ̃|�C���^ */</span>
FATFS** <span class="arg">fatfs</span> <span class="c">/* [OUT] �t�@�C���E�V�X�e���E�I�u�W�F�N�g���w���|�C���^�ւ̃|�C���^ */</span>
);
</pre>
</div>
<div class="para arg">
<h4>����</h4>
<dl class="par">
<dt>path</dt>
<dd>���ׂ�Ώۂ̘_���h���C�u������<a href="filename.html">�p�X��</a>�������k������<tt>'\0'</tt>�I�[�̕�����ւ̃|�C���^���w�肵�܂��B�k��������̓J�����g�E�h���C�u���Ӗ����܂��B</dd>
<dt>nclst</dt>
<dd>�N���X�^�����i�[����<tt>DWORD</tt>�^�ϐ��ւ̃|�C���^���w�肵�܂��B</dd>
<dt>fatfs</dt>
<dd>�Ώۃh���C�u�̃t�@�C���E�V�X�e���E�I�u�W�F�N�g���w���|�C���^���Ԃ���܂��B</dd>
</dl>
</div>
<div class="para ret">
<h4>�߂�l</h4>
<p>
<a href="rc.html#ok">FR_OK</a>,
<a href="rc.html#de">FR_DISK_ERR</a>,
<a href="rc.html#ie">FR_INT_ERR</a>,
<a href="rc.html#nr">FR_NOT_READY</a>,
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
<a href="rc.html#tm">FR_TIMEOUT</a>
</p>
</div>
<div class="para desc">
<h4>���</h4>
<p>�_���h���C�u��̋̈�̃T�C�Y���N���X�^�P�ʂŎ擾���܂��B�Ԃ��ꂽ�t�@�C���E�V�X�e���E�I�u�W�F�N�g��<tt>csize</tt>�����o���N���X�^������̃Z�N�^���������Ă���̂ŁA��������ɃZ�N�^�P�ʂ̋T�C�Y���v�Z�ł��܂��BFAT32�{�����[���ɂ����ẮAFSINFO�̏���ۂ̋N���X�^���Ɠ������Ă��Ȃ��ꍇ�A�s���m�Ȓl��Ԃ��\��������܂��B���̖�������邽�߁A<tt>_FS_NOFSINFO</tt>�I�v�V�����Ń}�E���g��̏���͕K���t��FAT�X�L����������悤�ɍ\�����邱�Ƃ��ł��܂��B</p>
</div>
<div class="para comp">
<h4>�Ή����</h4>
<p><tt>_FS_READONLY == 0</tt>�ŁA����<tt>_FS_MINIMIZE == 0</tt>�̂Ƃ��g�p�\�ł��B</p>
</div>
<div class="para use">
<h4>�g�p��</h4>
<pre>
FATFS *fs;
DWORD fre_clust, fre_sect, tot_sect;
<span class="c">/* �h���C�u1�̃{�����[�����ƋN���X�^���� */</span>
res = f_getfree("1:", &fre_clust, &fs);
if (res) die(res);
<span class="c">/* �S�Z�N�^���ƋZ�N�^�����v�Z */</span>
tot_sect = (fs->n_fatent - 2) * fs->csize;
fre_sect = fre_clust * fs->csize;
<span class="c">/* �{�����[���S�̂̃T�C�Y�Ƌ̃T�C�Y��\�� (512�o�C�g/�Z�N�^�Ɖ���) */</span>
printf("%10lu KiB total drive space.\n%10lu KiB available.\n",
tot_sect / 2, fre_sect / 2);
</pre>
</div>
<div class="para ref">
<h4>�Q��</h4>
<tt><a href="sfatfs.html">FATFS</a></tt>
</div>
<p class="foot"><a href="../00index_j.html">�߂�</a></p>
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