Chapter 8. The DbLsn Handle

Chapter 8. The DbLsn Handle
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#include <db_cxx.h>

class DbLsn : public DB_LSN { ... };

The DbLsn object is a log sequence number which specifies a unique location in a log file. A DbLsn consists of two unsigned 32-bit integers -- one specifies the log file number, and the other specifies an offset in the log file.

Logging Subsystem and Related Methods

Logging Subsystem and Related Methods	Description
DbEnv::log_archive()	List log and database files
DbEnv::log_file()	Map Log Sequence Numbers to log files
DbEnv::log_flush()	Flush log records
DbEnv::log_printf()	Append informational message to the log
DbEnv::log_put()	Write a log record
DbEnv::log_stat()	Return log subsystem statistics
DbEnv::log_stat_print()	Print log subsystem statistics
DbEnv::log_compare()	Compare two Log Sequence Numbers
Logging Subsystem Cursors
DbEnv::log_cursor()	Create a log cursor handle
The DbLogc Handle	A log cursor handle
DbLogc::close()	Close a log cursor
DbLogc::get()	Retrieve a log record
Logging Subsystem Configuration
DbEnv::log_set_config(), DbEnv::log_get_config()	Configure the logging subsystem
DbEnv::set_lg_bsize(), DbEnv::get_lg_bsize()	Set/get log buffer size
DbEnv::set_lg_dir(), DbEnv::get_lg_dir()	Set/get the environment logging directory
DbEnv::set_lg_filemode(), DbEnv::get_lg_filemode()	Set/get log file mode
DbEnv::set_lg_max(), DbEnv::get_lg_max()	Set/get log file size
DbEnv::set_lg_regionmax(), DbEnv::get_lg_regionmax()	Set/get logging region size