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Berkeley DB: DB->get_byteswapped
DB->get_byteswapped
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#include <db.h>
int
DB->get_byteswapped(DB *db, int *isswapped);
Description
The DB->get_byteswapped function
stores 0 into the memory location referenced by isswapped
if the underlying database files were created on an architecture of the
same byte order as the current one, and
stores 1 into the memory location referenced by isswapped
if they were not (that is, big-endian on a little-endian machine, or
vice versa). This field may be used to determine whether application
data needs to be adjusted for this architecture or not.
The DB->get_byteswapped interface may be called only after the DB->open
interface has been called.
Errors
The DB->get_byteswapped function may fail and return a non-zero error for the following conditions:
- EINVAL
- An invalid flag value or parameter was specified.
Called before DB->open was called.
The DB->get_byteswapped function may fail and return a non-zero error for errors specified for other Berkeley DB and C library or system functions.
If a catastrophic error has occurred, the DB->get_byteswapped function may fail and return
DB_RUNRECOVERY, in which case all subsequent Berkeley DB calls will fail
in the same way.
See Also
db_create,
DB->associate,
DB->close,
DB->cursor,
DB->del,
DB->err, DB->errx
DB->fd,
DB->get,
DB->pget,
DB->get_byteswapped,
DB->get_type,
DB->join,
DB->key_range,
DB->open,
DB->put,
DB->remove,
DB->rename,
DB->set_alloc,
DB->set_append_recno,
DB->set_bt_compare,
DB->set_bt_minkey,
DB->set_bt_prefix,
DB->set_cachesize,
DB->set_dup_compare,
DB->set_errcall,
DB->set_errfile,
DB->set_errpfx,
DB->set_feedback,
DB->set_flags,
DB->set_h_ffactor,
DB->set_h_hash,
DB->set_h_nelem,
DB->set_lorder,
DB->set_pagesize,
DB->set_paniccall,
DB->set_q_extentsize,
DB->set_re_delim,
DB->set_re_len,
DB->set_re_pad,
DB->set_re_source,
DB->stat,
DB->sync,
DB->truncate,
DB->upgrade,
and
DB->verify.
Copyright Sleepycat Software
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