lsopendir.tex

来自「efsl-0.3.6.zip」· TEX 代码 · 共 43 行

\subsubsection*{Purpose}
This function opens a directory for viewing, allowing you to iterate through
it's contents.
\subsubsection*{Prototype}
\code{esint8 ls\_openDir(DirList *dlist,FileSystem *fs,eint8* dirname);}
\subsubsection*{Arguments}
Objects passed to \code{ls\_openDir}:
\begin{itemize}
	\item{\code{dlist}: pointer to a DirList object}
	\item{\code{fs}: pointer to the FileSystem object}
	\item{\code{dirname}: C string containing the directorypath}
\end{itemize}
\subsubsection*{Return value}
This function will return 0 when it has opened the directory, and -1 on error.\\

\subsubsection*{Example}
\lstset{numbers=left, stepnumber=1, numberstyle=\small, numbersep=5pt, tabsize=4}
\begin{lstlisting}
#include "efs.h"
#include "ls.h"

	void main(void)
	{
		EmbeddedFileSystem efsl;
		DirList list;

		/* Initialize efsl */
		if(efs_init(&efsl,"/dev/sda")!=0){
			DBG((TXT("Could not initialize filesystem (err \%d).\n"),ret));
			exit(-1);
		}
		
		/* Open the directory */
		ls_openDir(list,&(efsl.myFs),"/usr/bin/");

		/* Correctly close the filesystem */
		fs_umount(&efs.myFs);
	}
\end{lstlisting}

Please note that it is not required to close this object, if you wish to switch
to another directory you can just call \code{ls\_openDir} on the object again.