sendmail/libsm/fwalk.c

/*
 * Copyright (c) 2000-2001 Sendmail, Inc. and its suppliers.
 *      All rights reserved.
 * Copyright (c) 1990, 1993
 *  The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Chris Torek.
 *
 * By using this file, you agree to the terms and conditions set
 * forth in the LICENSE file which can be found at the top level of
 * the sendmail distribution.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <sm/gen.h>
SM_RCSID("@(#)$Id: fwalk.c,v 1.19 2001/03/02 03:22:18 ca Exp $")
#include <errno.h>
#include <sm/io.h>
#include "local.h"
#include "glue.h"

/*
**  SM_FWALK -- apply a function to all found-open file pointers
**
**  Parameters:
**      function -- a function vector to be applied
**      timeout -- time to complete actions (milliseconds)
**
**  Returns:
**      The (binary) OR'd result of each function call
*/

int
sm_fwalk(function, timeout)
    int (*function) __P((SM_FILE_T *, int *));
    int *timeout;
{
    register SM_FILE_T *fp;
    register int n, ret;
    register struct sm_glue *g;
    int fptimeout;

    ret = 0;
    for (g = &smglue; g != NULL; g = g->gl_next)
    {
        for (fp = g->gl_iobs, n = g->gl_niobs; --n >= 0; fp++)
        {
            if (fp->f_flags != 0)
            {
                if (*timeout == SM_TIME_DEFAULT)
                    fptimeout = fp->f_timeout;
                else
                    fptimeout = *timeout;
                if (fptimeout == SM_TIME_IMMEDIATE)
                    continue; /* skip it */
                ret |= (*function)(fp, &fptimeout);
            }
        }
    }
    return ret;
}