Berkeley DB: DbMpoolFile::close
Полезная информация


#include <db_cxx.h>

int DbMpoolFile::close();


The DbMpoolFile::close method closes the source file indicated by the DbMpoolFile object. Calling DbMpoolFile::close does not imply a call to DbMpoolFile::sync, i.e. no pages are written to the source file as as a result of calling DbMpoolFile::close.

In addition, if the file argument to DbMpoolFile::open was NULL, any underlying files created for this DbMpoolFile will be removed.

The DbMpoolFile::close method either returns errno or throws an exception that encapsulates an errno on failure, and 0 on success.


If a fatal error occurs in Berkeley DB, the DbMpoolFile::close method may fail and either return DB_RUNRECOVERY or throw an exception encapsulating DB_RUNRECOVERY, at which point all subsequent database calls will also fail in the same way. Methods marked as returning errno will, by default, throw an exception that encapsulates the error information. The default error behavior can be changed, see DbException.

The DbMpoolFile::close method may fail and throw an exception for any of the errors specified for the following Berkeley DB and C library functions: abort(3), close(3), fcntl(3), fflush(3), fprintf(3), free(3), getpid(3), memset(3), munmap(3), strerror(3), vfprintf(3), and vsnprintf(3).



See Also

DbMpoolFile::close, DbMpoolFile::get, DbMpoolFile::open, DbMpoolFile::put, DbMpoolFile::set and DbMpoolFile::sync.