X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Findex%2Findex.hpp;fp=src%2Fcommon%2Findex%2Findex.hpp;h=00d8203d3db606e2b78b313fa5a9b677fe63bb68;hb=c9e313bc594f40a86eed237dce222c0fc99c957f;hp=0000000000000000000000000000000000000000;hpb=4878de5c7deb512bbdac4fdfc498907efa06fb7c;p=lttng-tools.git

diff --git a/src/common/index/index.hpp b/src/common/index/index.hpp
new file mode 100644
index 000000000..00d8203d3
--- /dev/null
+++ b/src/common/index/index.hpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2013 Julien Desfossez <jdesfossez@efficios.com>
+ * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#ifndef _INDEX_H
+#define _INDEX_H
+
+#include <inttypes.h>
+#include <urcu/ref.h>
+
+#include "ctf-index.hpp"
+#include <common/fs-handle.hpp>
+#include <common/trace-chunk.hpp>
+
+struct lttng_index_file {
+	struct fs_handle *file;
+	uint32_t major;
+	uint32_t minor;
+	uint32_t element_len;
+	struct lttng_trace_chunk *trace_chunk;
+	struct urcu_ref ref;
+};
+
+/*
+ * create and open have refcount of 1. Use put to decrement the
+ * refcount. Destroys when reaching 0. Use "get" to increment refcount.
+ */
+enum lttng_trace_chunk_status lttng_index_file_create_from_trace_chunk(
+		struct lttng_trace_chunk *chunk,
+		const char *channel_path, const char *stream_name,
+		uint64_t stream_file_size, uint64_t stream_count,
+		uint32_t index_major, uint32_t index_minor,
+		bool unlink_existing_file, struct lttng_index_file **file);
+
+enum lttng_trace_chunk_status lttng_index_file_create_from_trace_chunk_read_only(
+		struct lttng_trace_chunk *chunk,
+		const char *channel_path, const char *stream_name,
+		uint64_t stream_file_size, uint64_t stream_file_index,
+		uint32_t index_major, uint32_t index_minor,
+		bool expect_no_file, struct lttng_index_file **file);
+
+int lttng_index_file_write(const struct lttng_index_file *index_file,
+		const struct ctf_packet_index *element);
+int lttng_index_file_read(const struct lttng_index_file *index_file,
+		struct ctf_packet_index *element);
+
+void lttng_index_file_get(struct lttng_index_file *index_file);
+void lttng_index_file_put(struct lttng_index_file *index_file);
+
+#endif /* _INDEX_H */