Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/docs/nspr/reference/plhashenumerator.rst b/docs/nspr/reference/plhashenumerator.rst
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+
+Syntax
+------
+
+.. code::
+
+   #include <plhash.h>
+
+   typedef PRIntn (PR_CALLBACK *PLHashEnumerator)(PLHashEntry *he, PRIntn index, void *arg);
+
+   /* Return value */
+   #define HT_ENUMERATE_NEXT     0   /* continue enumerating entries */
+   #define HT_ENUMERATE_STOP     1   /* stop enumerating entries */
+   #define HT_ENUMERATE_REMOVE   2   /* remove and free the current entry */
+   #define HT_ENUMERATE_UNHASH   4   /* just unhash the current entry */
+
+
+Description
+-----------
+
+``PLHashEnumerator`` is a function type used in the enumerating a hash
+table. When all the table entries are enumerated, each entry is passed
+to a user-specified function of type ``PLHashEnumerator`` with the hash
+table entry, an integer index, and an arbitrary piece of user data as
+argument.
+
+
+Remark
+------
+
+The meaning of ``HT_ENUMERATE_UNHASH`` is not clear. In the current
+implementation, it will leave the hash table in an inconsistent state.
+The entries are unlinked from the table, they are not freed, but the
+entry count (the ``nentries`` field of the ``PLHashTable`` structure) is
+not decremented.
+
+
+See Also
+--------
+
+:ref:`PL_HashTableEnumerateEntries`