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56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/* -*- mode: C; c-basic-offset: 4 -*- */
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#ident "Copyright (c) 2007, 2008 Tokutek Inc. All rights reserved."
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/* Purpose of this file is to provide the world with everything necessary
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* to use the xids and nothing else.
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* Internal requirements of the xids logic do not belong here.
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*
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* xids is (abstractly) an immutable list of nested transaction ids, accessed only
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* via the functions in this file.
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*
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* See design documentation for nested transactions at
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* TokuWiki/Imp/TransactionsOverview.
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*/
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#ifndef XIDS_H
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#define XIDS_H
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#include "x1764.h"
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#include "rbuf.h"
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#include "wbuf.h"
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#include "tokuconst.h"
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//Retrieve an XIDS representing the root transaction.
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XIDS xids_get_root_xids(void);
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void xids_cpy(XIDS target, XIDS source);
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//Creates an XIDS representing this transaction.
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//You must pass in an XIDS representing the parent of this transaction.
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int xids_create_child(XIDS parent_xids, XIDS *xids_p, TXNID this_xid);
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void xids_create_from_buffer(struct rbuf *rb, XIDS * xids_p);
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void xids_destroy(XIDS *xids_p);
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TXNID xids_get_xid(XIDS xids, u_int8_t index);
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u_int8_t xids_find_index_of_xid(XIDS xids, TXNID target_xid);
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u_int8_t xids_get_num_xids(XIDS xids);
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TXNID xids_get_innermost_xid(XIDS xids);
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// return size in bytes
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u_int32_t xids_get_size(XIDS xids);
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u_int32_t xids_get_serialize_size(XIDS xids);
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void toku_calc_more_murmur_xids (struct x1764 *mm, XIDS xids);
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unsigned char *xids_get_end_of_array(XIDS xids);
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void wbuf_xids(struct wbuf *wb, XIDS xids);
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void xids_fprintf(FILE* fp, XIDS xids);
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#endif
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