/*-
 * Public Domain 2014-2018 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_sync.c
 * 	demonstrates how to use the transaction sync configuration.
 */
#include <test_util.h>

static const char *home;
static const char *const uri = "table:test";

#define	CONN_CONFIG "create,cache_size=100MB,log=(archive=false,enabled=true)"
#define	MAX_KEYS	100

int
main(int argc, char *argv[])
{
	WT_CONNECTION *wt_conn;
	WT_CURSOR *cursor;
	WT_SESSION *session;
	int i, record_count, ret;
	char k[32], v[32];
	const char *conf;

	home = example_setup(argc, argv);
	error_check(wiredtiger_open(home, NULL, CONN_CONFIG, &wt_conn));

	error_check(wt_conn->open_session(wt_conn, NULL, NULL, &session));
	error_check(session->create(
	    session, uri, "key_format=S,value_format=S"));

	error_check(session->open_cursor(session, uri, NULL, NULL, &cursor));
	/*
	 * Perform some operations with individual auto-commit transactions.
	 */
	error_check(session->begin_transaction(session, NULL));
	for (record_count = 0, i = 0; i < MAX_KEYS; i++, record_count++) {
		if (i == MAX_KEYS/2) {
			error_check(session->commit_transaction(
			    session, "sync=background"));
			ret = session->transaction_sync(
			    session, "timeout_ms=0");
			if (ret == ETIMEDOUT)
				printf("Transactions not yet stable\n");
			else if (ret != 0) {
				fprintf(stderr,
				    "session.transaction_sync: error %s\n",
				    session->strerror(session, ret));
				exit (1);
			}
			error_check(session->begin_transaction(session, NULL));
		} else {
			if ((record_count % 3) == 0)
				conf = "sync=background";
			else
				conf = "sync=off";
			error_check(session->commit_transaction(session, conf));
			error_check(session->begin_transaction(session, NULL));
		}
		(void)snprintf(k, sizeof(k), "key%d", i);
		(void)snprintf(v, sizeof(v), "value%d", i);
		cursor->set_key(cursor, k);
		cursor->set_value(cursor, v);
		error_check(cursor->insert(cursor));
	}
	error_check(session->commit_transaction(session, "sync=background"));
	printf("Wait forever until stable\n");
	error_check(session->transaction_sync(session, NULL));
	printf("Transactions now stable\n");
	error_check(session->begin_transaction(session, NULL));
	/*
	 * Perform some operations within a single transaction.
	 */
	for (i = MAX_KEYS; i < MAX_KEYS+5; i++, record_count++) {
		(void)snprintf(k, sizeof(k), "key%d", i);
		(void)snprintf(v, sizeof(v), "value%d", i);
		cursor->set_key(cursor, k);
		cursor->set_value(cursor, v);
		error_check(cursor->insert(cursor));
	}
	error_check(session->commit_transaction(session, "sync=on"));
	error_check(session->transaction_sync(session, "timeout_ms=0"));

	/*
	 * Demonstrate using log_flush to force the log to disk.
	 */
	for (i = 0; i < MAX_KEYS; i++, record_count++) {
		(void)snprintf(k, sizeof(k), "key%d", record_count);
		(void)snprintf(v, sizeof(v), "value%d", record_count);
		cursor->set_key(cursor, k);
		cursor->set_value(cursor, v);
		error_check(cursor->insert(cursor));
	}
	error_check(session->log_flush(session, "sync=on"));

	for (i = 0; i < MAX_KEYS; i++, record_count++) {
		(void)snprintf(k, sizeof(k), "key%d", record_count);
		(void)snprintf(v, sizeof(v), "value%d", record_count);
		cursor->set_key(cursor, k);
		cursor->set_value(cursor, v);
		error_check(cursor->insert(cursor));
	}
	error_check(cursor->close(cursor));
	error_check(session->log_flush(session, "sync=off"));
	error_check(session->log_flush(session, "sync=on"));

	error_check(wt_conn->close(wt_conn, NULL));

	return (EXIT_SUCCESS);
}
