From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Thu, 12 Dec 2019 16:31:34 +0000 (-0500)
Subject: sessiond: implement consumer clear channel
X-Git-Tag: v2.12.0-rc1~135
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=51a4828f21385847870ec2b2499e2f3e3842c26e;p=lttng-tools.git

sessiond: implement consumer clear channel

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I1c17a34c23e4c03f94acb99fb822c3bc42faccf5
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/src/bin/lttng-sessiond/consumer.c b/src/bin/lttng-sessiond/consumer.c
index 2e3127924..e745702f8 100644
--- a/src/bin/lttng-sessiond/consumer.c
+++ b/src/bin/lttng-sessiond/consumer.c
@@ -1727,6 +1727,34 @@ error:
 	return ret;
 }
 
+int consumer_clear_channel(struct consumer_socket *socket, uint64_t key)
+{
+	int ret;
+	struct lttcomm_consumer_msg msg;
+
+	assert(socket);
+
+	DBG("Consumer clear channel %" PRIu64, key);
+
+	memset(&msg, 0, sizeof(msg));
+	msg.cmd_type = LTTNG_CONSUMER_CLEAR_CHANNEL;
+	msg.u.clear_channel.key = key;
+
+	health_code_update();
+
+	pthread_mutex_lock(socket->lock);
+	ret = consumer_send_msg(socket, &msg);
+	if (ret < 0) {
+		goto error_socket;
+	}
+
+error_socket:
+	pthread_mutex_unlock(socket->lock);
+
+	health_code_update();
+	return ret;
+}
+
 int consumer_init(struct consumer_socket *socket,
 		const lttng_uuid sessiond_uuid)
 {
diff --git a/src/bin/lttng-sessiond/consumer.h b/src/bin/lttng-sessiond/consumer.h
index 8ebbe00e2..1844a1c69 100644
--- a/src/bin/lttng-sessiond/consumer.h
+++ b/src/bin/lttng-sessiond/consumer.h
@@ -332,4 +332,7 @@ int consumer_trace_chunk_exists(struct consumer_socket *socket,
 char *setup_channel_trace_path(struct consumer_output *consumer,
 		const char *session_path, size_t *consumer_path_offset);
 
+/* Clear command */
+int consumer_clear_channel(struct consumer_socket *socket, uint64_t key);
+
 #endif /* _CONSUMER_H */