Search Toolkit Book for MDB_env
The database environment. More...
Collaboration diagram for MDB_env:
Public Attributes | |
| int | me_fd |
| The main data file. More... | |
| int | me_lfd |
| The lock file. More... | |
| int | me_mfd |
| For writing and syncing the meta pages. More... | |
| uint32_t | me_flags |
| Environment Flags More... | |
| unsigned int | me_psize |
| DB page size, inited from me_os_psize. More... | |
| unsigned int | me_os_psize |
| OS page size, from GET_PAGESIZE. More... | |
| unsigned int | me_maxreaders |
| size of the reader table More... | |
| volatile int | me_close_readers |
| Max MDB_txninfo. More... | |
| MDB_dbi | me_numdbs |
| number of DBs opened More... | |
| MDB_dbi | me_maxdbs |
| size of the DB table More... | |
| pid_t | me_pid |
| process ID of this env More... | |
| char * | me_path |
| path to the DB files More... | |
| char * | me_map |
| the memory map of the data file More... | |
| MDB_txninfo * | me_txns |
| the memory map of the lock file or NULL More... | |
| MDB_meta * | me_metas [2] |
| pointers to the two meta pages More... | |
| void * | me_pbuf |
| scratch area for DUPSORT put() More... | |
| MDB_txn * | me_txn |
| current write transaction More... | |
| MDB_txn * | me_txn0 |
| prealloc'd write transaction More... | |
| size_t | me_mapsize |
| size of the data memory map More... | |
| off_t | me_size |
| current file size More... | |
| pgno_t | me_maxpg |
| me_mapsize / me_psize More... | |
| MDB_dbx * | me_dbxs |
| array of static DB info More... | |
| uint16_t * | me_dbflags |
| array of flags from MDB_db.md_flags More... | |
| unsigned int * | me_dbiseqs |
| array of dbi sequence numbers More... | |
| pthread_key_t | me_txkey |
| thread-key for readers More... | |
| txnid_t | me_pgoldest |
| ID of oldest reader last time we looked. More... | |
| MDB_pgstate | me_pgstate |
| state of old pages from freeDB More... | |
| MDB_page * | me_dpages |
| list of malloc'd blocks for re-use More... | |
| MDB_IDL | me_free_pgs |
| IDL of pages that became unused in a write txn. More... | |
| MDB_ID2L | me_dirty_list |
| ID2L of pages written during a write txn. More... | |
| int | me_maxfree_1pg |
| Max number of freelist items that can fit in a single overflow page. More... | |
| unsigned int | me_nodemax |
| Max size of a node on a page. More... | |
| int | me_live_reader |
| have liveness lock in reader table More... | |
| void * | me_userctx |
| User-settable context. More... | |
| MDB_assert_func * | me_assert_func |
| Callback for assertion failures. More... | |
Detailed Description
Member Data Documentation
◆ me_assert_func
| MDB_assert_func* MDB_env::me_assert_func |
◆ me_close_readers
| volatile int MDB_env::me_close_readers |
Max MDB_txninfo.
mti_numreaders of interest to mdb_env_close()
◆ me_dbflags
| uint16_t* MDB_env::me_dbflags |
array of flags from MDB_db.md_flags
◆ me_dbiseqs
| unsigned int* MDB_env::me_dbiseqs |
◆ me_dbxs
◆ me_dirty_list
| MDB_ID2L MDB_env::me_dirty_list |
◆ me_dpages
| MDB_page* MDB_env::me_dpages |
◆ me_fd
| int MDB_env::me_fd |
◆ me_flags
| uint32_t MDB_env::me_flags |
◆ me_free_pgs
| MDB_IDL MDB_env::me_free_pgs |
◆ me_lfd
| int MDB_env::me_lfd |
◆ me_live_reader
| int MDB_env::me_live_reader |
◆ me_map
◆ me_mapsize
◆ me_maxdbs
| MDB_dbi MDB_env::me_maxdbs |
size of the DB table
Definition at line 1278 of file mdb.c.
Referenced by mdb_dbi_open(), and mdb_env_create().
◆ me_maxfree_1pg
| int MDB_env::me_maxfree_1pg |
◆ me_maxpg
◆ me_maxreaders
| unsigned int MDB_env::me_maxreaders |
◆ me_metas
| MDB_meta* MDB_env::me_metas[2] |
◆ me_mfd
| int MDB_env::me_mfd |
For writing and syncing the meta pages.
Definition at line 1262 of file mdb.c.
Referenced by mdb_env_create().
◆ me_nodemax
| unsigned int MDB_env::me_nodemax |
◆ me_numdbs
| MDB_dbi MDB_env::me_numdbs |
◆ me_os_psize
| unsigned int MDB_env::me_os_psize |
OS page size, from GET_PAGESIZE.
Definition at line 1273 of file mdb.c.
Referenced by mdb_env_create().
◆ me_path
◆ me_pbuf
◆ me_pgoldest
| txnid_t MDB_env::me_pgoldest |
◆ me_pgstate
| MDB_pgstate MDB_env::me_pgstate |
◆ me_pid
| pid_t MDB_env::me_pid |
◆ me_psize
| unsigned int MDB_env::me_psize |
DB page size, inited from me_os_psize.
Definition at line 1272 of file mdb.c.
Referenced by mdb_env_cwalk(), mdb_node_add(), mdb_page_new(), mdb_page_spill(), and mdb_page_touch().
◆ me_size
◆ me_txkey
◆ me_txn
◆ me_txn0
◆ me_txns
| MDB_txninfo* MDB_env::me_txns |
the memory map of the lock file or NULL
Definition at line 1282 of file mdb.c.
Referenced by mdb_find_oldest().
◆ me_userctx
The documentation for this struct was generated from the following file:
- src/util/lmdb/mdb.c
