multiline: ensure context is registered for REGEX type

mirko-lazarevic · mirko-lazarevic · commit 23a2e18f9334 · 2025-12-01T12:46:36.000+01:00
This fix ensures that when the buffer is
flushed, the record will have proper timestamp
and metadata instead of just the "log" field.

Signed-off-by: Mirko Lazarevic &lt;mirko.lazarevic@ibm.com&gt;
diff --git a/src/multiline/flb_ml.c b/src/multiline/flb_ml.c
@@ -268,6 +268,11 @@ static int package_content(struct flb_ml_stream *mst,
         if (ret == FLB_MULTILINE_TRUNCATED) {
             truncated = FLB_TRUE;
         }
+
+        if (stream_group->mp_sbuf.size == 0) {
+            flb_ml_register_context(stream_group, tm, full_map);
+        }
+
         processed = FLB_TRUE;
     }
     else if (type == FLB_ML_ENDSWITH) {

Original file line number	Diff line number	Diff line change
`@@ -268,6 +268,11 @@ static int package_content(struct flb_ml_stream *mst,`
`268`	`268`	`if (ret == FLB_MULTILINE_TRUNCATED) {`
`269`	`269`	`truncated = FLB_TRUE;`
`270`	`270`	`}`
	`271`	`+`
	`272`	`+ if (stream_group->mp_sbuf.size == 0) {`
	`273`	`+ flb_ml_register_context(stream_group, tm, full_map);`
	`274`	`+ }`
	`275`	`+`
`271`	`276`	`processed = FLB_TRUE;`
`272`	`277`	`}`
`273`	`278`	`else if (type == FLB_ML_ENDSWITH) {`