pblkfopen.html

来自「B树算法实现」· HTML 代码 · 共 43 行

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43 行

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD>   <TITLE>pblKeyFile_t* pblKfOpen</TITLE>   <META NAME="GENERATOR" CONTENT="DOC++ 3.4.9"></HEAD> <center><H2>Program Base Library Functions</H2></center><H2><!1><A HREF="pblKeyFile_t.html">pblKeyFile_t</A>* <A HREF="#DOC.DOCU">pblKfOpen</A></H2><H2>( char*  path,<BR>&nbsp;  int update,<BR>&nbsp;  void*  filesettag )</H2><BLOCKQUOTE> open an existing key file</BLOCKQUOTE><A NAME="DOC.DOCU"></A><HR><H2>Documentation</H2><BLOCKQUOTE>open an existing key file<P>if update is 0, the file is opened for read access only,if update is not 0 the file is opened for reading and writing<P>a file set tag can be attached to the file,if a file having a non NULL file set tag is flushedto disk all files having the same file set tag attachedare flushed as well.<P><P><B>RESTRICTIONS</B>:<BR> - the file must exist already<BR> - the current record of the file will not be set<P></BLOCKQUOTE><DL><DT><DT><B>Parameters:</B><DD><B>path</B> -   path of file to create                                 <BR><B>update</B> -   flag: should file be opened for update?                <BR><B>filesettag</B> -   file set tag, for flushing multiple files consistently <BR><DT><B>Returns:</B><DD>  pblKeyFile_t * retptr == NULL: an error occured, see pbl_errno<BR>  pblKeyFile_t * retptr != NULL: a pointer to a key file descriptor<BR><DD></DL><P><P><I><A HREF="index.html">Alphabetic index</A></I></P><HR><BR>This page was generated with the help of <A HREF="http://docpp.sourceforge.net">DOC++</A>.</BODY></HTML>

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