source: trunk/third/rpm/db/os_win32/os_fsync.c @ 19079

/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 1997-2002
 *      Sleepycat Software.  All rights reserved.
 */

#include "db_config.h"

#ifndef lint
static const char revid[] = "Id: os_fsync.c,v 11.15 2002/07/12 18:56:54 bostic Exp ";
#endif /* not lint */

#ifndef NO_SYSTEM_INCLUDES
#include <sys/types.h>

#include <fcntl.h>                      /* XXX: Required by __hp3000s900 */
#include <unistd.h>
#include <string.h>
#endif

#include "db_int.h"

/*
 * __os_fsync --
 *      Flush a file descriptor.
 *
 * PUBLIC: int __os_fsync __P((DB_ENV *, DB_FH *));
 */
int
__os_fsync(dbenv, fhp)
        DB_ENV *dbenv;
        DB_FH *fhp;
{
        BOOL success;
        int ret;

        /*
         * Do nothing if the file descriptor has been marked as not requiring
         * any sync to disk.
         */
        if (F_ISSET(fhp, DB_FH_NOSYNC))
                return (0);

        ret = 0;
        do {
                if (DB_GLOBAL(j_fsync) != NULL)
                        success = (DB_GLOBAL(j_fsync)(fhp->fd) == 0);
                else {
                        success = FlushFileBuffers(fhp->handle);
                        if (!success)
                                __os_set_errno(__os_win32_errno());
                }
        } while (!success && (ret = __os_get_errno()) == EINTR);

        if (ret != 0)
                __db_err(dbenv, "fsync %s", strerror(ret));
        return (ret);
}