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authorDaniel Baumann <daniel.baumann@progress-linux.org>2019-05-21 18:55:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2019-05-21 18:55:22 +0000
commit61d0027904ee9c040985b1642ca228737d616d03 (patch)
treec90838c137b4dc4a2de1cff9f2d7be5552d605e7 /database/engine/datafile.h
parentAdding upstream version 1.14.0. (diff)
downloadnetdata-61d0027904ee9c040985b1642ca228737d616d03.tar.xz
netdata-61d0027904ee9c040985b1642ca228737d616d03.zip
Adding upstream version 1.15.0.upstream/1.15.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'database/engine/datafile.h')
-rw-r--r--database/engine/datafile.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/database/engine/datafile.h b/database/engine/datafile.h
new file mode 100644
index 000000000..c5c8f31f3
--- /dev/null
+++ b/database/engine/datafile.h
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_DATAFILE_H
+#define NETDATA_DATAFILE_H
+
+#include "rrdengine.h"
+
+/* Forward declarations */
+struct rrdengine_datafile;
+struct rrdengine_journalfile;
+struct rrdengine_instance;
+
+#define DATAFILE_PREFIX "datafile-"
+#define DATAFILE_EXTENSION ".ndf"
+
+#define MAX_DATAFILE_SIZE (1073741824LU)
+#define MIN_DATAFILE_SIZE (16777216LU)
+#define MAX_DATAFILES (65536) /* Supports up to 64TiB for now */
+#define TARGET_DATAFILES (20)
+
+#define DATAFILE_IDEAL_IO_SIZE (1048576U)
+
+struct extent_info {
+ uint64_t offset;
+ uint32_t size;
+ uint8_t number_of_pages;
+ struct rrdengine_datafile *datafile;
+ struct extent_info *next;
+ struct rrdeng_page_cache_descr *pages[];
+};
+
+struct rrdengine_df_extents {
+ /* the extent list is sorted based on disk offset */
+ struct extent_info *first;
+ struct extent_info *last;
+};
+
+/* only one event loop is supported for now */
+struct rrdengine_datafile {
+ unsigned tier;
+ unsigned fileno;
+ uv_file file;
+ uint64_t pos;
+ struct rrdengine_instance *ctx;
+ struct rrdengine_df_extents extents;
+ struct rrdengine_journalfile *journalfile;
+ struct rrdengine_datafile *next;
+};
+
+struct rrdengine_datafile_list {
+ struct rrdengine_datafile *first; /* oldest */
+ struct rrdengine_datafile *last; /* newest */
+};
+
+extern void df_extent_insert(struct extent_info *extent);
+extern void datafile_list_insert(struct rrdengine_instance *ctx, struct rrdengine_datafile *datafile);
+extern void datafile_list_delete(struct rrdengine_instance *ctx, struct rrdengine_datafile *datafile);
+extern int destroy_data_file(struct rrdengine_datafile *datafile);
+extern int create_data_file(struct rrdengine_datafile *datafile);
+extern void create_new_datafile_pair(struct rrdengine_instance *ctx, unsigned tier, unsigned fileno);
+extern int init_data_files(struct rrdengine_instance *ctx);
+
+#endif /* NETDATA_DATAFILE_H */ \ No newline at end of file