sessiond: implement consumer clear channel

[lttng-tools.git] / src / bin / lttng-sessiond / consumer.c

diff --git a/src/bin/lttng-sessiond/consumer.c b/src/bin/lttng-sessiond/consumer.c
index 98cd14149c0d0089075728152d3650b2de844ece..e745702f85cd9cea776a1063d7dea6025849bd4a 100644 (file)
--- a/src/bin/lttng-sessiond/consumer.c
+++ b/src/bin/lttng-sessiond/consumer.c
@@ -626,6 +626,7 @@ struct consumer_output *consumer_copy_output(struct consumer_output *src)
        output->snapshot = src->snapshot;
        output->relay_major_version = src->relay_major_version;
        output->relay_minor_version = src->relay_minor_version;
+       output->relay_allows_clear = src->relay_allows_clear;
        memcpy(&output->dst, &src->dst, sizeof(output->dst));
        ret = consumer_copy_sockets(output, src);
        if (ret < 0) {
@@ -1726,6 +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)
 {