* threads.c (krb5int_mutex_alloc, krb5int_mutex_free, krb5int_mutex_lock,

krb5int_mutex_unlock): New functions.
(krb5int_mutex_lock_update_stats, krb5int_mutex_unlock_update_stats,
krb5int_mutex_report_stats): Always define, even if not doing anything.
* libkrb5support.exports: Export the new functions.

ticket: 3417
status: open

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@17607 dc483132-0cff-0310-8789-dd5450dbe970

1 files changed, 40 insertions, 1 deletions

diff --git a/src/util/support/threads.c b/src/util/support/threads.c
index 8a00e4c2b..d3b5c1bef 100644
--- a/src/util/support/threads.c
+++ b/src/util/support/threads.c
@@ -585,7 +585,7 @@ krb5int_mutex_report_stats(k5_mutex_t *m)
 	    sd_hold);
   }
 }
-#elif defined _WIN32
+#else
 /* On Windows, everything defined in the export list must be defined.
    The UNIX systems where we're using the export list don't seem to
    care.  */
@@ -606,3 +606,42 @@ krb5int_mutex_report_stats(k5_mutex_t *m)
 {
 }
 #endif
+
+/* Mutex allocation functions, for use in plugins that may not know
+   what options a given set of libraries was compiled with.  */
+int KRB5_CALLCONV
+krb5int_mutex_alloc (k5_mutex_t **m)
+{
+    k5_mutex_t *ptr;
+    int err;
+
+    ptr = malloc (sizeof (k5_mutex_t));
+    if (ptr == NULL)
+	return errno;
+    err = k5_mutex_init (ptr);
+    if (err) {
+	free (ptr);
+	return err;
+    }
+    *m = ptr;
+    return 0;
+}
+
+void KRB5_CALLCONV
+krb5int_mutex_free (k5_mutex_t *m)
+{
+    (void) k5_mutex_destroy (m);
+    free (m);
+}
+
+/* Callable versions of the various macros.  */
+int KRB5_CALLCONV
+krb5int_mutex_lock (k5_mutex_t *m)
+{
+    return k5_mutex_lock (m);
+}
+int KRB5_CALLCONV
+krb5int_mutex_unlock (k5_mutex_t *m)
+{
+    return k5_mutex_unlock (m);
+}