72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
#ifndef LSM
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#define LSM
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#include <stdint.h>
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#define LSM_RES(x) \
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{ \
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lsm_error res = x; \
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if (res != lsm_error_ok) \
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return res; \
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}
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typedef enum lsm_error {
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lsm_error_ok = 0,
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lsm_error_failed_alloc = 1,
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lsm_error_not_found = 2,
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lsm_error_already_present = 3,
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lsm_error_null_value = 4,
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lsm_error_failed_io = 5,
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lsm_error_lock_busy = 6,
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} lsm_error;
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/*typedef struct lsm_string { */
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/* uint64_t len; */
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/* union { */
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/* void *ptr; */
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/* char val[8]; */
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/* } str; */
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/*} lsm_string; */
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/*/1** */
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/* * The type of an attribute. Each type is represented as a single bit of a */
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/* * 32-bit integer, so they can be easily combined into a bitmap. */
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/* *1/ */
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/*typedef enum lsm_attr_type { lsm_attr_type_entry_type = 1 << 0 }
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* lsm_attr_type; */
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/*/1** */
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/* * A single attribute associated with an entry */
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/* *1/ */
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/*typedef struct lsm_attr { */
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/* lsm_attr_type type; */
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/* lsm_string str; */
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/*} lsm_attr; */
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/*/1** */
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/* * Represents a collection of attributes for an entry. A collection can only
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*/
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/* * contain one of each attribute. */
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/* *1/ */
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/*typedef struct lsm_attr_list { */
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/* uint64_t count; */
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/* lsm_attr *items; */
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/* uint32_t bitmap; */
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/*} lsm_attr_list; */
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/*/1** */
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/* * An entry inside an LSM store */
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/* *1/ */
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/*typedef struct lsm_entry { */
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/* lsm_string key; */
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/* lsm_attr_list attrs; */
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/* lsm_string data; */
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/*} lsm_entry; */
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/*/1** */
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/* * A store of entries, which manages its data both in-memory and on disk. */
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/* *1/ */
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/*typedef struct lsm_store lsm_store; */
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#endif
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