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64 lines
2 KiB
C
64 lines
2 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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/* rollback and rollforward routines. */
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#include <stdlib.h>
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#include <inttypes.h>
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#include <unistd.h>
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#include "log_header.h"
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#include "log-internal.h"
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#include "cachetable.h"
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#include "key.h"
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#define ABORTIT { le=le; txn=txn; fprintf(stderr, "%s:%d (%s) not ready to go\n", __FILE__, __LINE__, __func__); abort(); }
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int toku_rollback_fcreate (BYTESTRING bs_fname,
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TOKUTXN txn __attribute__((__unused__))) {
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char *fname = fixup_fname(&bs_fname);
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char *directory = txn->logger->directory;
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int full_len=strlen(fname)+strlen(directory)+2;
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char full_fname[full_len];
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int l = snprintf(full_fname,full_len, "%s/%s", directory, fname);
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assert(l<=full_len);
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int r = unlink(full_fname);
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assert(r==0);
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free(fname);
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return 0;
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}
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//int toku_rollback_newbrtnode (struct logtype_newbrtnode *le, TOKUTXN txn) {
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// // All that must be done is to put the node on the freelist.
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// // Since we don't have a freelist right now, we don't have anything to do.
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// // We'll fix this later (See #264)
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// le=le;
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// txn=txn;
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// return 0;
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//}
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int toku_rollback_insertatleaf (FILENUM filenum, BYTESTRING key,BYTESTRING data, TOKUTXN txn) {
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CACHEFILE cf;
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BRT brt;
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int r = toku_cachefile_of_filenum(txn->logger->ct, filenum, &cf, &brt);
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assert(r==0);
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DBT key_dbt,data_dbt;
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r = toku_brt_delete_both(brt,
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toku_fill_dbt(&key_dbt, key.data, key.len),
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toku_fill_dbt(&data_dbt, data.data, data.len),
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0);
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return r;
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}
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int toku_rollback_deleteatleaf (FILENUM filenum, BYTESTRING key, BYTESTRING data,TOKUTXN txn) {
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CACHEFILE cf;
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BRT brt;
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int r = toku_cachefile_of_filenum(txn->logger->ct, filenum, &cf, &brt);
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assert(r==0);
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DBT key_dbt,data_dbt;
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r = toku_brt_insert(brt,
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toku_fill_dbt(&key_dbt, key.data, key.len),
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toku_fill_dbt(&data_dbt, data.data, data.len),
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0); // Do the insertion unconditionally
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return r;
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}
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