[Asterisk-code-review] stream: ast stream clone() cannot copy the opaque user data. (asterisk[master])

[Richard Mudgett]

Richard Mudgett has uploaded a new change for review. ( https://gerrit.asterisk.org/5593 )

Change subject: stream: ast_stream_clone() cannot copy the opaque user data.
......................................................................

stream: ast_stream_clone() cannot copy the opaque user data.

ast_stream_clone() cannot copy the opaque user data stored on a stream.
We don't know how to clone the data so it isn't copied into the clone.

Change-Id: Ia51321bf38ecbfdcc53787ca77ea5fd2cabdf367
---
M include/asterisk/stream.h
M main/stream.c
2 files changed, 8 insertions(+), 1 deletion(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/93/5593/1

diff --git a/include/asterisk/stream.h b/include/asterisk/stream.h
index 1bb34b7..821ecec 100644
--- a/include/asterisk/stream.h
+++ b/include/asterisk/stream.h
@@ -126,7 +126,7 @@
  * \retval NULL failure
  *
  * \note Opaque data pointers set with ast_stream_set_data() are not part
- * of the deep clone.  The pointers are simply copied.
+ * of the deep clone.  We have no way to clone the data.
  *
  * \since 15
  */
diff --git a/main/stream.c b/main/stream.c
index 0f23933..804a0b8 100644
--- a/main/stream.c
+++ b/main/stream.c
@@ -99,6 +99,7 @@
 {
 	struct ast_stream *new_stream;
 	size_t stream_size;
+	int idx;
 
 	if (!stream) {
 		return NULL;
@@ -115,6 +116,12 @@
 		ao2_ref(new_stream->formats, +1);
 	}
 
+	/* We cannot clone the opaque data because we don't know how. */
+	for (idx = 0; idx < AST_STREAM_DATA_SLOT_MAX; ++idx) {
+		new_stream->data[idx] = NULL;
+		new_stream->data_free_fn[idx] = NULL;
+	}
+
 	return new_stream;
 }
 

-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ia51321bf38ecbfdcc53787ca77ea5fd2cabdf367
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-Owner: Richard Mudgett <rmudgett at digium.com>