Implement snapshot commands in lttng-sessiond

[lttng-tools.git] / src / bin / lttng-sessiond / snapshot.h

diff --git a/src/bin/lttng-sessiond/snapshot.h b/src/bin/lttng-sessiond/snapshot.h
new file mode 100644 (file)
index 0000000..9121527
--- /dev/null
+++ b/src/bin/lttng-sessiond/snapshot.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef SNAPSHOT_H
+#define SNAPSHOT_H
+
+#include <limits.h>
+#include <stdint.h>
+
+#include <common/common.h>
+#include <common/hashtable/hashtable.h>
+#include <common/uri.h>
+
+#include "consumer.h"
+
+struct consumer_output;
+
+struct snapshot_output {
+       uint32_t id;
+       uint64_t max_size;
+       char name[NAME_MAX];
+       struct consumer_output *consumer;
+       int kernel_sockets_copied;
+       int ust_sockets_copied;
+
+       /* Indexed by ID. */
+       struct lttng_ht_node_ulong node;
+};
+
+struct snapshot {
+       unsigned long next_output_id;
+       size_t nb_output;
+       struct lttng_ht *output_ht;
+};
+
+/* Snapshot object. */
+struct snapshot *snapshot_alloc(void);
+void snapshot_destroy(struct snapshot *obj);
+int snapshot_init(struct snapshot *obj);
+void snapshot_delete_output(struct snapshot *snapshot,
+               struct snapshot_output *output);
+void snapshot_add_output(struct snapshot *snapshot,
+               struct snapshot_output *output);
+
+/* Snapshot output object. */
+struct snapshot_output *snapshot_output_alloc(void);
+void snapshot_output_destroy(struct snapshot_output *obj);
+int snapshot_output_init(uint64_t max_size, const char *name,
+               const char *ctrl_url, const char *data_url,
+               struct consumer_output *consumer, struct snapshot_output *output,
+               struct snapshot *snapshot);
+struct snapshot_output *snapshot_find_output_by_id(uint32_t id,
+               struct snapshot *snapshot);
+
+#endif /* SNAPSHOT_H */