r17893: add a function to disable the null_context

metze
(This used to be commit 7cab4285b1b61ad5cb425e42d89bcf7d645b0710)

3 files changed, 15 insertions, 2 deletions

diff --git a/source4/lib/talloc/talloc.c b/source4/lib/talloc/talloc.c
index 7ba3e5f3ab..cc04a2425a 100644
--- a/source4/lib/talloc/talloc.c
+++ b/source4/lib/talloc/talloc.c
@@ -79,10 +79,9 @@
    talloc_enable_leak_report_full() is called, otherwise it remains
    NULL
 */
-static const void *null_context;
+static void *null_context;
 static void *cleanup_context;
 
-
 struct talloc_reference_handle {
 	struct talloc_reference_handle *next, *prev;
 	void *ptr;
@@ -909,6 +908,15 @@ void talloc_enable_null_tracking(void)
 }
 
 /*
+  disable tracking of the NULL context
+*/
+void talloc_disable_null_tracking(void)
+{
+	talloc_free(null_context);
+	null_context = NULL;
+}
+
+/*
   enable leak reporting on exit
 */
 void talloc_enable_leak_report(void)
diff --git a/source4/lib/talloc/talloc.h b/source4/lib/talloc/talloc.h
index b904029bda..f080f0498d 100644
--- a/source4/lib/talloc/talloc.h
+++ b/source4/lib/talloc/talloc.h
@@ -129,6 +129,7 @@ size_t talloc_total_blocks(const void *ptr);
 void talloc_report_full(const void *ptr, FILE *f);
 void talloc_report(const void *ptr, FILE *f);
 void talloc_enable_null_tracking(void);
+void talloc_disable_null_tracking(void);
 void talloc_enable_leak_report(void);
 void talloc_enable_leak_report_full(void);
 void *_talloc_zero(const void *ctx, size_t size, const char *name);
diff --git a/source4/lib/talloc/talloc_guide.txt b/source4/lib/talloc/talloc_guide.txt
index 65fb2017a4..7f1a3ea6cd 100644
--- a/source4/lib/talloc/talloc_guide.txt
+++ b/source4/lib/talloc/talloc_guide.txt
@@ -432,6 +432,10 @@ This enables tracking of the NULL memory context without enabling leak
 reporting on exit. Useful for when you want to do your own leak
 reporting call via talloc_report_null_full();
 
+=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+void talloc_disable_null_tracking(void);
+
+This disables tracking of the NULL memory context.
 
 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
 (type *)talloc_zero(const void *ctx, type);