/*
* __wt_debug_set_verbose --
* Set verbose flags from the debugger.
*/
int
__wt_debug_set_verbose(WT_SESSION_IMPL *session, const char *v)
{
const char *cfg[2] = { NULL, NULL };
char buf[256];
snprintf(buf, sizeof(buf), "verbose=[%s]", v);
cfg[0] = buf;
return (__wt_verbose_config(session, cfg));
}
/*
* __wt_conn_reconfig --
* Reconfigure a connection (internal version).
*/
int
__wt_conn_reconfig(WT_SESSION_IMPL *session, const char **cfg)
{
WT_CONNECTION_IMPL *conn;
WT_DECL_RET;
const char *p;
conn = S2C(session);
/* Serialize reconfiguration. */
__wt_spin_lock(session, &conn->reconfig_lock);
/*
* The configuration argument has been checked for validity, update the
* previous connection configuration.
*
* DO NOT merge the configuration before the reconfigure calls. Some
* of the underlying reconfiguration functions do explicit checks with
* the second element of the configuration array, knowing the defaults
* are in slot #1 and the application's modifications are in slot #2.
*
* Replace the base configuration set up by CONNECTION_API_CALL with
* the current connection configuration, otherwise reconfiguration
* functions will find the base value instead of previously configured
* value.
*/
cfg[0] = conn->cfg;
/*
* Reconfigure the system.
*
* The compatibility version check is special: upgrade / downgrade
* cannot be done with transactions active, and checkpoints must not
* span a version change. Hold the checkpoint lock to avoid conflicts
* with WiredTiger's checkpoint thread, and rely on the documentation
* specifying that no new operations can start until the upgrade /
* downgrade completes.
*/
WT_WITH_CHECKPOINT_LOCK(session,
ret = __wt_conn_compat_config(session, cfg));
WT_ERR(ret);
WT_ERR(__wt_conn_statistics_config(session, cfg));
WT_ERR(__wt_async_reconfig(session, cfg));
WT_ERR(__wt_cache_config(session, true, cfg));
WT_ERR(__wt_checkpoint_server_create(session, cfg));
WT_ERR(__wt_logmgr_reconfig(session, cfg));
WT_ERR(__wt_lsm_manager_reconfig(session, cfg));
WT_ERR(__wt_statlog_create(session, cfg));
WT_ERR(__wt_sweep_config(session, cfg));
WT_ERR(__wt_verbose_config(session, cfg));
WT_ERR(__wt_timing_stress_config(session, cfg));
/* Third, merge everything together, creating a new connection state. */
WT_ERR(__wt_config_merge(session, cfg, NULL, &p));
__wt_free(session, conn->cfg);
conn->cfg = p;
err: __wt_spin_unlock(session, &conn->reconfig_lock);
return (ret);
}
