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Diffstat (limited to 'storage/tokudb/PerconaFT/ft/logger/log-internal.h')
| -rw-r--r-- | storage/tokudb/PerconaFT/ft/logger/log-internal.h | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/storage/tokudb/PerconaFT/ft/logger/log-internal.h b/storage/tokudb/PerconaFT/ft/logger/log-internal.h new file mode 100644 index 00000000000..bee74fac346 --- /dev/null +++ b/storage/tokudb/PerconaFT/ft/logger/log-internal.h @@ -0,0 +1,225 @@ +/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ +// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4: +#ident "$Id$" +/*====== +This file is part of PerconaFT. + + +Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved. + + PerconaFT is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License, version 2, + as published by the Free Software Foundation. + + PerconaFT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with PerconaFT. If not, see <http://www.gnu.org/licenses/>. + +---------------------------------------- + + PerconaFT is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License, version 3, + as published by the Free Software Foundation. + + PerconaFT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with PerconaFT. If not, see <http://www.gnu.org/licenses/>. +======= */ + +#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved." + +#pragma once + +#include <stdio.h> +#include <sys/types.h> +#include <string.h> +#include <dirent.h> + +#include "portability/toku_list.h" +#include "portability/toku_pthread.h" +#include "ft/ft-internal.h" +#include "ft/logger/log.h" +#include "ft/logger/logfilemgr.h" +#include "ft/txn/txn.h" +#include "ft/txn/txn_manager.h" +#include "ft/txn/rollback_log_node_cache.h" + +#include "util/memarena.h" +#include "util/omt.h" + +using namespace toku; +// Locking for the logger +// For most purposes we use the big ydb lock. +// To log: grab the buf lock +// If the buf would overflow, then grab the file lock, swap file&buf, release buf lock, write the file, write the entry, release the file lock +// else append to buf & release lock + +#define LOGGER_MIN_BUF_SIZE (1<<24) + +// TODO: Remove mylock, it has no value +struct mylock { + toku_mutex_t lock; +}; + +static inline void ml_init(struct mylock *l) { + toku_mutex_init(&l->lock, 0); +} +static inline void ml_lock(struct mylock *l) { + toku_mutex_lock(&l->lock); +} +static inline void ml_unlock(struct mylock *l) { + toku_mutex_unlock(&l->lock); +} +static inline void ml_destroy(struct mylock *l) { + toku_mutex_destroy(&l->lock); +} + +struct logbuf { + int n_in_buf; + int buf_size; + char *buf; + LSN max_lsn_in_buf; +}; + +struct tokulogger { + struct mylock input_lock; + + toku_mutex_t output_condition_lock; // if you need both this lock and input_lock, acquire the output_lock first, then input_lock. More typical is to get the output_is_available condition to be false, and then acquire the input_lock. + toku_cond_t output_condition; // + bool output_is_available; // this is part of the predicate for the output condition. It's true if no thread is modifying the output (either doing an fsync or otherwise fiddling with the output). + + bool is_open; + bool write_log_files; + bool trim_log_files; // for test purposes + char *directory; // file system directory + DIR *dir; // descriptor for directory + int fd; + CACHETABLE ct; + int lg_max; // The size of the single file in the log. Default is 100MB. + + // To access these, you must have the input lock + LSN lsn; // the next available lsn + struct logbuf inbuf; // data being accumulated for the write + + // To access these, you must have the output condition lock. + LSN written_lsn; // the last lsn written + LSN fsynced_lsn; // What is the LSN of the highest fsynced log entry (accessed only while holding the output lock, and updated only when the output lock and output permission are held) + LSN last_completed_checkpoint_lsn; // What is the LSN of the most recent completed checkpoint. + long long next_log_file_number; + struct logbuf outbuf; // data being written to the file + int n_in_file; // The amount of data in the current file + + // To access the logfilemgr you must have the output condition lock. + TOKULOGFILEMGR logfilemgr; + + uint32_t write_block_size; // How big should the blocks be written to various logs? + + uint64_t num_writes_to_disk; // how many times did we write to disk? + uint64_t bytes_written_to_disk; // how many bytes have been written to disk? + tokutime_t time_spent_writing_to_disk; // how much tokutime did we spend writing to disk? + uint64_t num_wait_buf_long; // how many times we waited >= 100ms for the in buf + + CACHEFILE rollback_cachefile; + rollback_log_node_cache rollback_cache; + TXN_MANAGER txn_manager; +}; + +int toku_logger_find_next_unused_log_file(const char *directory, long long *result); +int toku_logger_find_logfiles (const char *directory, char ***resultp, int *n_logfiles); +void toku_logger_free_logfiles (char **logfiles, int n_logfiles); + +static inline int +txn_has_current_rollback_log(TOKUTXN txn) { + return txn->roll_info.current_rollback.b != ROLLBACK_NONE.b; +} + +static inline int +txn_has_spilled_rollback_logs(TOKUTXN txn) { + return txn->roll_info.spilled_rollback_tail.b != ROLLBACK_NONE.b; +} + +struct txninfo { + uint64_t rollentry_raw_count; // the total count of every byte in the transaction and all its children. + uint32_t num_fts; + FT *open_fts; + bool force_fsync_on_commit; //This transaction NEEDS an fsync once (if) it commits. (commit means root txn) + uint64_t num_rollback_nodes; + uint64_t num_rollentries; + BLOCKNUM spilled_rollback_head; + BLOCKNUM spilled_rollback_tail; + BLOCKNUM current_rollback; +}; + +static inline int toku_logsizeof_uint8_t (uint32_t v __attribute__((__unused__))) { + return 1; +} + +static inline int toku_logsizeof_uint32_t (uint32_t v __attribute__((__unused__))) { + return 4; +} + +static inline int toku_logsizeof_uint64_t (uint32_t v __attribute__((__unused__))) { + return 8; +} + +static inline int toku_logsizeof_bool (uint32_t v __attribute__((__unused__))) { + return 1; +} + +static inline int toku_logsizeof_FILENUM (FILENUM v __attribute__((__unused__))) { + return 4; +} + +static inline int toku_logsizeof_DISKOFF (DISKOFF v __attribute__((__unused__))) { + return 8; +} +static inline int toku_logsizeof_BLOCKNUM (BLOCKNUM v __attribute__((__unused__))) { + return 8; +} + +static inline int toku_logsizeof_LSN (LSN lsn __attribute__((__unused__))) { + return 8; +} + +static inline int toku_logsizeof_TXNID (TXNID txnid __attribute__((__unused__))) { + return 8; +} + +static inline int toku_logsizeof_TXNID_PAIR (TXNID_PAIR txnid __attribute__((__unused__))) { + return 16; +} + +static inline int toku_logsizeof_XIDP (XIDP xid) { + assert(0<=xid->gtrid_length && xid->gtrid_length<=64); + assert(0<=xid->bqual_length && xid->bqual_length<=64); + return xid->gtrid_length + + xid->bqual_length + + 4 // formatID + + 1 // gtrid_length + + 1; // bqual_length +} + +static inline int toku_logsizeof_FILENUMS (FILENUMS fs) { + static const FILENUM f = {0}; //fs could have .num==0 and then we cannot dereference + return 4 + fs.num * toku_logsizeof_FILENUM(f); +} + +static inline int toku_logsizeof_BYTESTRING (BYTESTRING bs) { + return 4+bs.len; +} + +static inline char *fixup_fname(BYTESTRING *f) { + assert(f->len>0); + char *fname = (char*)toku_xmalloc(f->len+1); + memcpy(fname, f->data, f->len); + fname[f->len]=0; + return fname; +} |