Version 2.6.1
ex_config.c

Shows how to configure some properties of the database and tables.

/*-
* Public Domain 2014-2015 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_config.c
* This is an example demonstrating how to configure various database and
* table properties.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wiredtiger.h>
static const char *home;
int
main(void)
{
int ret;
WT_SESSION *session;
WT_CURSOR *cursor;
const char *key, *value;
/*
* Create a clean test directory for this run of the test program if the
* environment variable isn't already set (as is done by make check).
*/
if (getenv("WIREDTIGER_HOME") == NULL) {
home = "WT_HOME";
ret = system("rm -rf WT_HOME && mkdir WT_HOME");
} else
home = NULL;
if ((ret = wiredtiger_open(home, NULL,
"create,cache_size=500M", &conn)) != 0)
fprintf(stderr, "Error connecting to %s: %s\n",
home, wiredtiger_strerror(ret));
ret = conn->open_session(conn, NULL, NULL, &session);
ret = session->create(session,
"table:access", "key_format=S,value_format=S");
ret = session->begin_transaction(session, "priority=100,name=mytxn");
ret = session->open_cursor(session, "config:", NULL, NULL, &cursor);
while ((ret = cursor->next(cursor)) == 0) {
ret = cursor->get_key(cursor, &key);
ret = cursor->get_value(cursor, &value);
printf("configuration value: %s = %s\n", key, value);
}
ret = session->commit_transaction(session, NULL);
ret = conn->close(conn, NULL);
return (ret);
}