Version 11.3.0
ex_extra_diagnostics.c

This is an example demonstrating how to enable and update extra diagnostic code at runtime.

/*-
* Public Domain 2014-present MongoDB, Inc.
* Public Domain 2008-2014 WiredTiger, Inc.
*
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* ex_extra_diagnostics.c
* This is an example demonstrating how to enable and update extra diagnostic
* code at runtime.
*/
#include <test_util.h>
static const char *home;
int
main(int argc, char *argv[])
{
home = example_setup(argc, argv);
#ifdef HAVE_DIAGNOSTIC
/*
* In diagnostic mode diagnostics are always enabled. Attempting to configure them will return
* an error.
*/
testutil_assert(
wiredtiger_open(home, NULL, "create,extra_diagnostics=[key_out_of_order]", &conn) == EINVAL);
#else
/* Open a connection to the database, enabling key ordering checks. */
error_check(wiredtiger_open(home, NULL, "create,extra_diagnostics=[key_out_of_order]", &conn));
/*
* Reconfigure the connection to turn on transaction visibility checks. As key_out_of_order is
* not provided in the new configuration it is disabled.
*/
error_check(conn->reconfigure(conn, "extra_diagnostics=[txn_visibility]"));
#endif
return (EXIT_SUCCESS);
}
WT_CONNECTION
A connection to a WiredTiger database.
Definition: wiredtiger.in:2089
wiredtiger_open
int wiredtiger_open(const char *home, WT_EVENT_HANDLER *event_handler, const char *config, WT_CONNECTION **connectionp)
Open a connection to a database.
WT_CONNECTION::reconfigure
int reconfigure(WT_CONNECTION *connection, const char *config)
Reconfigure a connection handle.