77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
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#ifndef _DB_H
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#define _DB_H
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#include <stdint.h>
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#include <sys/types.h>
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typedef struct __toku_dbt DBT;
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// port: this is currently not used
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struct simple_dbt {
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uint32_t len;
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void *data;
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};
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// engine status info
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// engine status is passed to handlerton as an array of
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// TOKU_ENGINE_STATUS_ROW_S[]
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typedef enum {
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STATUS_FS_STATE = 0, // interpret as file system state (redzone) enum
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STATUS_UINT64, // interpret as uint64_t
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STATUS_CHARSTR, // interpret as char *
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STATUS_UNIXTIME, // interpret as time_t
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STATUS_TOKUTIME, // interpret as tokutime_t
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STATUS_PARCOUNT, // interpret as PARTITIONED_COUNTER
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STATUS_DOUBLE // interpret as double
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} toku_engine_status_display_type;
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typedef enum {
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TOKU_ENGINE_STATUS = (1ULL << 0), // Include when asking for engine status
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TOKU_GLOBAL_STATUS =
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(1ULL << 1), // Include when asking for information_schema.global_status
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} toku_engine_status_include_type;
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typedef struct __toku_engine_status_row {
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const char *keyname; // info schema key, should not change across revisions
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// without good reason
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const char
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*columnname; // column for mysql, e.g. information_schema.global_status.
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// TOKUDB_ will automatically be prefixed.
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const char *legend; // the text that will appear at user interface
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toku_engine_status_display_type type; // how to interpret the value
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toku_engine_status_include_type
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include; // which kinds of callers should get read this row?
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union {
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double dnum;
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uint64_t num;
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const char *str;
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char datebuf[26];
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struct partitioned_counter *parcount;
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} value;
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} * TOKU_ENGINE_STATUS_ROW, TOKU_ENGINE_STATUS_ROW_S;
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#define DB_BUFFER_SMALL -30999
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#define DB_LOCK_DEADLOCK -30995
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#define DB_LOCK_NOTGRANTED -30994
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#define DB_NOTFOUND -30989
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#define DB_KEYEXIST -30996
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#define DB_DBT_MALLOC 8
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#define DB_DBT_REALLOC 64
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#define DB_DBT_USERMEM 256
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/* PerconaFT specific error codes */
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#define TOKUDB_OUT_OF_LOCKS -100000
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typedef void (*lock_wait_callback)(void *arg, uint64_t requesting_txnid,
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uint64_t blocking_txnid);
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struct __toku_dbt {
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void *data;
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size_t size;
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size_t ulen;
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// One of DB_DBT_XXX flags
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uint32_t flags;
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};
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#endif
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