[lttng-dev] [PATCH lttng-ust 5/7] Store exclusions to enablers

[jp_ikaheimonen@mentor.com (JP Ikaheimonen)]

Implement a function that adds exclusions to the list in the enabler.
Call this function in the enabler command handler when the
LTTNG_UST_EXCLUSION command is received.

Signed-off-by: JP Ikaheimonen <jp_ikaheimonen at mentor.com>
---
 include/lttng/ust-events.h   | 2 ++
 liblttng-ust/lttng-events.c  | 9 +++++++++
 liblttng-ust/lttng-ust-abi.c | 7 +++++++
 3 files changed, 18 insertions(+)

diff --git a/include/lttng/ust-events.h b/include/lttng/ust-events.h
index db8b9dc..5d43570 100644
--- a/include/lttng/ust-events.h
+++ b/include/lttng/ust-events.h
@@ -549,6 +549,8 @@ int lttng_enabler_attach_bytecode(struct lttng_enabler *enabler,
 		struct lttng_ust_filter_bytecode_node *bytecode);
 int lttng_enabler_attach_context(struct lttng_enabler *enabler,
 		struct lttng_ust_context *ctx);
+int lttng_enabler_attach_exclusion(struct lttng_enabler *enabler,
+		struct lttng_ust_excluder_node *excluder);
 
 int lttng_attach_context(struct lttng_ust_context *context_param,
 		struct lttng_ctx **ctx, struct lttng_session *session);
diff --git a/liblttng-ust/lttng-events.c b/liblttng-ust/lttng-events.c
index ad374f3..915cffb 100644
--- a/liblttng-ust/lttng-events.c
+++ b/liblttng-ust/lttng-events.c
@@ -721,6 +721,15 @@ int lttng_enabler_attach_bytecode(struct lttng_enabler *enabler,
 	return 0;
 }
 
+int lttng_enabler_attach_exclusion(struct lttng_enabler *enabler,
+		struct lttng_ust_excluder_node *excluder)
+{
+	excluder->enabler = enabler;
+	cds_list_add_tail(&excluder->node, &enabler->excluder_head);
+	lttng_session_lazy_sync_enablers(enabler->chan->session);
+	return 0;
+}
+
 int lttng_attach_context(struct lttng_ust_context *context_param,
 		struct lttng_ctx **ctx, struct lttng_session *session)
 {
diff --git a/liblttng-ust/lttng-ust-abi.c b/liblttng-ust/lttng-ust-abi.c
index a852aae..61245a8 100644
--- a/liblttng-ust/lttng-ust-abi.c
+++ b/liblttng-ust/lttng-ust-abi.c
@@ -933,6 +933,8 @@ static const struct lttng_ust_objd_ops lttng_channel_ops = {
  *		Disable recording for this enabler
  *	LTTNG_UST_FILTER
  *		Attach a filter to an enabler.
+ *	LTTNG_UST_EXCLUSION
+ *		Attach exclusions to an enabler.
  */
 static
 long lttng_enabler_cmd(int objd, unsigned int cmd, unsigned long arg,
@@ -958,6 +960,11 @@ long lttng_enabler_cmd(int objd, unsigned int cmd, unsigned long arg,
 			return ret;
 		return 0;
 	}
+	case LTTNG_UST_EXCLUSION:
+	{
+		return lttng_enabler_attach_exclusion(enabler,
+				(struct lttng_ust_excluder_node *) arg);
+	}
 	default:
 		return -EINVAL;
 	}
-- 
1.8.1.2