XrdSysDir Class Reference

#include <XrdSysDir.hh>

Collaboration diagram for XrdSysDir:

Public Member Functions
	XrdSysDir (const char *path)
virtual	~XrdSysDir ()
bool	isValid ()
int	lastError ()
char *	nextEntry ()

Detailed Description

Definition at line 48 of file XrdSysDir.hh.

Constructor & Destructor Documentation

XrdSysDir()

XrdSysDir::XrdSysDir

(

const char *

path

)

Definition at line 51 of file XrdSysDir.cc.

{
   // Constructor. Initialize a directory handle for 'path'.
   // Use isValid() to check the result of this operation, and lastError()
   // to get the last error code, if any.
 
   lasterr = 0; dhandle = 0;
   if (path && strlen(path) > 0) {
#if !defined(WINDOWS)
      dhandle = (void *) opendir(path);
      if (!dhandle)
         lasterr = errno;
#else
      WIN32_FIND_DATA filedata;
      dhandle = (void *) ::FindFirstFile(path, &filedata);
      if ((HANDLE)dhandle == INVALID_HANDLE_VALUE) {
         lasterr = EINVAL;
         dhandle = 0;
      }
      else if (!(filedata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
         lasterr = ENOTDIR;
         dhandle = 0;
      }
#endif
   } else
      // Invalid argument
      lasterr = EINVAL;
}

References opendir().

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~XrdSysDir()

XrdSysDir::~XrdSysDir ( )

virtual

Definition at line 81 of file XrdSysDir.cc.

{
   // Destructor.
 
   if (dhandle) {
#if !defined(WINDOWS)
      closedir((DIR *)dhandle);
#else
      ::FindClose((HANDLE)dhandle);
#endif
   }
}

References closedir().

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Member Function Documentation

isValid()

bool XrdSysDir::isValid ( )

inline

Definition at line 54 of file XrdSysDir.hh.

{ return (dhandle ? 1 : 0); }

lastError()

int XrdSysDir::lastError ( )

inline

Definition at line 55 of file XrdSysDir.hh.

{ return lasterr; }

nextEntry()

char * XrdSysDir::nextEntry

(

)

Definition at line 95 of file XrdSysDir.cc.

{
   // Get next entry in directory structure.
   // Return 0 if no more entries or error. In the latter case
   // the error code can be retrieved via lastError().
 
   char *dent = 0;
 
   lasterr = 0;
   if (!dhandle) {
      lasterr = EINVAL;
      return dent;
   }
 
#if !defined(WINDOWS)
   struct dirent *ent = readdir((DIR *)dhandle);
   if (!ent) {
      if (errno == EBADF)
         lasterr = errno;
   } else {
      dent = (char *) ent->d_name;
   }
#else
   WIN32_FIND_DATA filedata;
   if (::FindNextFile((HANDLE)dhandle, &filedata)) {
      dent = (char *) filedata.cFileName;
   } else {
      if (::GetLastError() != ERROR_NO_MORE_FILES)
         lasterr = EBADF;
   }
#endif
   // Done
   return dent;
}

References readdir().

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The documentation for this class was generated from the following files:

• XrdSysDir.hh
• XrdSysDir.cc