X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=lttng-context-vtid.c;h=a264424fcf01510d766c1e053ea0e270dffd4efe;hb=a0493bef1367458230b0319401f8533b0400cea2;hp=31f40392c495d58e9f7a87293114caaa303aa811;hpb=13ab8b0a749053960f81a4924a3ed27775518f94;p=deliverable%2Flttng-modules.git

diff --git a/lttng-context-vtid.c b/lttng-context-vtid.c
index 31f40392..a264424f 100644
--- a/lttng-context-vtid.c
+++ b/lttng-context-vtid.c
@@ -56,6 +56,22 @@ void vtid_record(struct lttng_ctx_field *field,
 	chan->ops->event_write(ctx, &vtid, sizeof(vtid));
 }
 
+static
+void vtid_get_value(struct lttng_ctx_field *field,
+		union lttng_ctx_value *value)
+{
+	pid_t vtid;
+
+	/*
+	 * nsproxy can be NULL when scheduled out of exit.
+	 */
+	if (!current->nsproxy)
+		vtid = 0;
+	else
+		vtid = task_pid_vnr(current);
+	value->s64 = vtid;
+}
+
 int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx)
 {
 	struct lttng_ctx_field *field;
@@ -77,6 +93,8 @@ int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx)
 	field->event_field.type.u.basic.integer.encoding = lttng_encode_none;
 	field->get_size = vtid_get_size;
 	field->record = vtid_record;
+	field->get_value = vtid_get_value;
+	lttng_context_update(*ctx);
 	wrapper_vmalloc_sync_all();
 	return 0;
 }