1/*-
2 * See the file LICENSE for redistribution information.
3 *
4 * Copyright (c) 1997-2009 Oracle.  All rights reserved.
5 *
6 * $Id$
7 */
8
9#include "db_config.h"
10
11#include "db_int.h"
12
13/*
14 * __os_fsync --
15 *	Flush a file descriptor.
16 */
17int
18__os_fsync(env, fhp)
19	ENV *env;
20	DB_FH *fhp;
21{
22	DB_ENV *dbenv;
23	int ret;
24
25	dbenv = env == NULL ? NULL : env->dbenv;
26
27	/*
28	 * Do nothing if the file descriptor has been marked as not requiring
29	 * any sync to disk.
30	 */
31	if (F_ISSET(fhp, DB_FH_NOSYNC))
32		return (0);
33
34	if (dbenv != NULL && FLD_ISSET(dbenv->verbose, DB_VERB_FILEOPS_ALL))
35		__db_msg(env, "fileops: flush %s", fhp->name);
36
37	RETRY_CHK((!FlushFileBuffers(fhp->handle)), ret);
38	if (ret != 0) {
39		__db_syserr(env, ret, "FlushFileBuffers");
40		ret = __os_posix_err(ret);
41	}
42	return (ret);
43}
44