group__apr__file__io.html

apr函数库使用手册

    <td>

<p>
Close the specified file. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>file</em>&nbsp;</td><td>The file descriptor to close. </td></tr>
  </table>
</dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga7" doxytag="apr_file_io.h::apr_file_copy" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_file_copy           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const char *&nbsp;</td>
          <td class="mdname" nowrap> <em>from_path</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>const char *&nbsp;</td>
          <td class="mdname" nowrap> <em>to_path</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="group__apr__file__info.html#ga1">apr_fileperms_t</a>&nbsp;</td>
          <td class="mdname" nowrap> <em>perms</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="group__apr__pools.html#ga0">apr_pool_t</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>pool</em></td>
        </tr>
        <tr>
          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Copy the specified file to another file. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>from_path</em>&nbsp;</td><td>The full path to the original file (using / on all systems) </td></tr>
    <tr><td></td><td valign=top><em>to_path</em>&nbsp;</td><td>The full path to the new file (using / on all systems) </td></tr>
    <tr><td></td><td valign=top><em>perms</em>&nbsp;</td><td>Access permissions for the new file if it is created. In place of the usual or'd combination of file permissions, the value APR_FILE_SOURCE_PERMS may be given, in which case the source file's permissions are copied. </td></tr>
    <tr><td></td><td valign=top><em>pool</em>&nbsp;</td><td>The pool to use. </td></tr>
  </table>
</dl>
<dl compact><dt><b>Remarks:</b></dt><dd>The new file does not need to exist, it will be created if required. </dd></dl>
<dl compact><dt><b>Warning:</b></dt><dd>If the new file already exists, its contents will be overwritten. </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga36" doxytag="apr_file_io.h::apr_file_data_get" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_file_data_get           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">void **&nbsp;</td>
          <td class="mdname" nowrap> <em>data</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>const char *&nbsp;</td>
          <td class="mdname" nowrap> <em>key</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="group__apr__file__io.html#ga2">apr_file_t</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>file</em></td>
        </tr>
        <tr>
          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Return the data associated with the current file. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>data</em>&nbsp;</td><td>The user data associated with the file. </td></tr>
    <tr><td></td><td valign=top><em>key</em>&nbsp;</td><td>The key to use for retreiving data associated with this file. </td></tr>
    <tr><td></td><td valign=top><em>file</em>&nbsp;</td><td>The currently open file. </td></tr>
  </table>
</dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga37" doxytag="apr_file_io.h::apr_file_data_set" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_file_data_set           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="group__apr__file__io.html#ga2">apr_file_t</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>file</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>void *&nbsp;</td>
          <td class="mdname" nowrap> <em>data</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>const char *&nbsp;</td>
          <td class="mdname" nowrap> <em>key</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="group__apr__errno.html#ga0">apr_status_t</a>(*&nbsp;</td>
          <td class="mdname" nowrap> <em>cleanup</em>)(void *)</td>
        </tr>
        <tr>
          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Set the data associated with the current file. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>file</em>&nbsp;</td><td>The currently open file. </td></tr>
    <tr><td></td><td valign=top><em>data</em>&nbsp;</td><td>The user data to associate with the file. </td></tr>
    <tr><td></td><td valign=top><em>key</em>&nbsp;</td><td>The key to use for assocaiteing data with the file. </td></tr>
    <tr><td></td><td valign=top><em>cleanup</em>&nbsp;</td><td>The cleanup routine to use when the file is destroyed. </td></tr>
  </table>
</dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga25" doxytag="apr_file_io.h::apr_file_dup" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_file_dup           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="group__apr__file__io.html#ga2">apr_file_t</a> **&nbsp;</td>
          <td class="mdname" nowrap> <em>new_file</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="group__apr__file__io.html#ga2">apr_file_t</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>old_file</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="group__apr__pools.html#ga0">apr_pool_t</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>p</em></td>
        </tr>
        <tr>
          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Duplicate the specified file descriptor. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>new_file</em>&nbsp;</td><td>The structure to duplicate into. </td></tr>
    <tr><td></td><td valign=top><em>old_file</em>&nbsp;</td><td>The file to duplicate. </td></tr>
    <tr><td></td><td valign=top><em>p</em>&nbsp;</td><td>The pool to use for the new file. </td></tr>
  </table>
</dl>
<dl compact><dt><b>Remarks:</b></dt><dd>*new_file must point to a valid apr_file_t, or point to NULL. </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga26" doxytag="apr_file_io.h::apr_file_dup2" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_file_dup2           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="group__apr__file__io.html#ga2">apr_file_t</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>new_file</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="group__apr__file__io.html#ga2">apr_file_t</a> *&nbsp;</td>