Add kernel trace destroy functions

[lttng-tools.git] / ltt-sessiond / trace.c

diff --git a/ltt-sessiond/trace.c b/ltt-sessiond/trace.c
index 8b1d15e105b730501bd149cd67088e8d12800356..5214cddfcfe6433560646c3d62dd1c181d6e3bf3 100644 (file)
--- a/ltt-sessiond/trace.c
+++ b/ltt-sessiond/trace.c
@@ -20,6 +20,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 #include <urcu/list.h>
 
 #include "ltt-sessiond.h"
@@ -207,3 +208,79 @@ struct ltt_kernel_stream *trace_create_kernel_stream(void)
 error:
        return NULL;
 }
+
+void trace_destroy_kernel_stream(struct ltt_kernel_stream *stream)
+{
+       /* Close kernel fd */
+       close(stream->fd);
+       free(stream->pathname);
+
+       /* Remove from stream list */
+       cds_list_del(&stream->list);
+       free(stream);
+}
+
+void trace_destroy_kernel_event(struct ltt_kernel_event *event)
+{
+       /* Close kernel fd */
+       close(event->fd);
+       /* Free attributes */
+       free(event->event);
+
+       /* Remove from event list */
+       cds_list_del(&event->list);
+       free(event);
+}
+
+void trace_destroy_kernel_channel(struct ltt_kernel_channel *channel)
+{
+       struct ltt_kernel_stream *stream;
+       struct ltt_kernel_event *event;
+
+       /* Close kernel fd */
+       close(channel->fd);
+       free(channel->pathname);
+       /* Free attributes structure */
+       free(channel->channel);
+
+       /* For each stream in the channel list */
+       cds_list_for_each_entry(stream, &channel->stream_list.head, list) {
+               trace_destroy_kernel_stream(stream);
+       }
+
+       /* For each event in the channel list */
+       cds_list_for_each_entry(event, &channel->events_list.head, list) {
+               trace_destroy_kernel_event(event);
+       }
+
+       /* Remove from channel list */
+       cds_list_del(&channel->list);
+       free(channel);
+}
+
+void trace_destroy_kernel_metadata(struct ltt_kernel_metadata *metadata)
+{
+       /* Close kernel fd */
+       close(metadata->fd);
+       /* Free attributes */
+       free(metadata->conf);
+
+       free(metadata);
+}
+
+void trace_destroy_kernel_session(struct ltt_kernel_session *session)
+{
+       struct ltt_kernel_channel *channel;
+
+       /* Close kernel fds */
+       close(session->fd);
+       close(session->metadata_stream_fd);
+
+       trace_destroy_kernel_metadata(session->metadata);
+
+       cds_list_for_each_entry(channel, &session->channel_list.head, list) {
+               trace_destroy_kernel_channel(channel);
+       }
+
+       free(session);
+}