ex_get_last_error.c

Demonstrates how to get more verbose information about the last session error in WiredTiger.

/*-
 * 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_get_last_error.c
 *      Demonstrate how to get more verbose information about the last session error in WiredTiger.
 */
#include <test_util.h>
 
static const char *home;
 
int
main(int argc, char *argv[])
{
    home = example_setup(argc, argv);
 
    WT_CONNECTION *conn;
    WT_SESSION *session;
 
    /* Open a connection to the database, creating it if necessary. */
    error_check(wiredtiger_open(home, NULL, "create", &conn));
 
    /* Prepare return arguments. */
    int err, sub_level_err;
    const char *err_msg;
 
    /* Call the API and log the returned error codes and error message. */
    printf("ex_get_last_error: expect verbose information about the last session error:\n");
    error_check(conn->open_session(conn, NULL, NULL, &session));
    session->get_last_error(session, &err, &sub_level_err, &err_msg);
    printf("Error code: %d\n", err);
    printf("Sub-level error code: %d\n", sub_level_err);
    printf("Error message: '%s'\n", err_msg);
 
    error_check(conn->close(conn, NULL));
 
    return (EXIT_SUCCESS);
}