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9fb4f7ab7c
replace rbmode and "rollback mode" with rb_ctx and "rollback context". Suggested by Sunny.
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/******************************************************
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Transaction system global type definitions
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(c) 1996 Innobase Oy
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Created 3/26/1996 Heikki Tuuri
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*******************************************************/
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#ifndef trx0types_h
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#define trx0types_h
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#include "lock0types.h"
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#include "ut0byte.h"
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/* prepare trx_t::id for being printed via printf(3) */
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#define TRX_ID_PREP_PRINTF(id) (ullint) ut_conv_dulint_to_longlong(id)
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/* printf(3) format used for printing TRX_ID_PRINTF_PREP() */
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#define TRX_ID_FMT "%llX"
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/* maximum length that a formatted trx_t::id could take, not including
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the terminating '\0'. */
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#define TRX_ID_MAX_LEN 17
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/* Memory objects */
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typedef struct trx_struct trx_t;
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typedef struct trx_sys_struct trx_sys_t;
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typedef struct trx_doublewrite_struct trx_doublewrite_t;
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typedef struct trx_sig_struct trx_sig_t;
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typedef struct trx_rseg_struct trx_rseg_t;
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typedef struct trx_undo_struct trx_undo_t;
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typedef struct trx_undo_arr_struct trx_undo_arr_t;
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typedef struct trx_undo_inf_struct trx_undo_inf_t;
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typedef struct trx_purge_struct trx_purge_t;
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typedef struct roll_node_struct roll_node_t;
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typedef struct commit_node_struct commit_node_t;
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typedef struct trx_named_savept_struct trx_named_savept_t;
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/* Rollback contexts */
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enum trx_rb_ctx {
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RB_NONE = 0, /* no rollback */
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RB_NORMAL, /* normal rollback */
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RB_RECOVERY, /* rolling back an incomplete transaction,
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in crash recovery */
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};
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/* Transaction savepoint */
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typedef struct trx_savept_struct trx_savept_t;
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struct trx_savept_struct{
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dulint least_undo_no; /* least undo number to undo */
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};
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/* File objects */
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typedef byte trx_sysf_t;
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typedef byte trx_rsegf_t;
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typedef byte trx_usegf_t;
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typedef byte trx_ulogf_t;
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typedef byte trx_upagef_t;
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/* Undo log record */
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typedef byte trx_undo_rec_t;
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#endif
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