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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
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Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+PR_ReadDir
+==========
+
+Gets a pointer to the next entry in the directory.
+
+
+Syntax
+------
+
+.. code::
+
+ #include <prio.h>
+
+ PRDirEntry* PR_ReadDir(
+ PRDir *dir,
+ PRDirFlags flags);
+
+
+Parameters
+~~~~~~~~~~
+
+The function has the following parameters:
+
+``dir``
+ A pointer to a :ref:`PRDir` object that designates an open directory.
+``flags``
+ Specifies which directory entries, if any, to skip. Values can
+ include the following:
+
+ - :ref:`PR_SKIP_NONE`. Do not skip any files.
+ - :ref:`PR_SKIP_DOT`. Skip the directory entry "." representing the
+ current directory.
+ - :ref:`PR_SKIP_DOT_DOT`. Skip the directory entry ".." representing
+ the parent directory.
+ - :ref:`PR_SKIP_BOTH`. Skip both "." and ".."
+ - :ref:`PR_SKIP_HIDDEN`. Skip hidden files. On Windows platforms and
+ the Mac OS, this value identifies files with the "hidden"
+ attribute set. On Unix platform, this value identifies files whose
+ names begin with a period (".").
+
+
+Returns
+~~~~~~~
+
+- A pointer to the next entry in the directory.
+- If the end of the directory is reached or an error occurs, ``NULL``.
+ The reason can be retrieved via :ref:`PR_GetError`.
+
+
+Description
+-----------
+
+:ref:`PR_ReadDir` returns a pointer to a directory entry structure:
+
+.. code::
+
+ struct PRDirEntry {
+ const char *name;
+ };
+
+ typedef struct PRDirEntry PRDirEntry;
+
+The structure has the following field:
+
+``name``
+ Name of entry, relative to directory name.
+
+The ``flags`` parameter is an enum of type ``PRDirFlags``:
+
+.. code::
+
+ typedef enum PRDirFlags {
+ PR_SKIP_NONE = 0x0,
+ PR_SKIP_DOT = 0x1,
+ PR_SKIP_DOT_DOT = 0x2,
+ PR_SKIP_BOTH = 0x3,
+ PR_SKIP_HIDDEN = 0x4
+ } PRDirFlags;
+
+The memory associated with the returned PRDirEntry structure is managed
+by NSPR. The caller must not free the ``PRDirEntry`` structure.
+Moreover, the ``PRDirEntry`` structure returned by each :ref:`PR_ReadDir`
+call is valid only until the next :ref:`PR_ReadDir` or :ref:`PR_CloseDir` call
+on the same :ref:`PRDir` object.
+
+If the end of the directory is reached, :ref:`PR_ReadDir` returns ``NULL``,
+and :ref:`PR_GetError` returns ``PR_NO_MORE_FILES_ERROR``.
+
+
+See Also
+--------
+
+:ref:`PR_OpenDir`