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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2019-05-21 18:55:22 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2019-05-21 18:55:22 +0000 |
| commit | 61d0027904ee9c040985b1642ca228737d616d03 (patch) | |
| tree | c90838c137b4dc4a2de1cff9f2d7be5552d605e7 /database/engine/datafile.h | |
| parent | Adding upstream version 1.14.0. (diff) | |
| download | netdata-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.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/database/engine/datafile.h b/database/engine/datafile.h new file mode 100644 index 00000000..c5c8f31f --- /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 */
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