interval.c

来自「linux下的多线程调试工具」· C语言 代码 · 共 58 行

/* Copyright (C) 2004,2005,2006  Bull S.A.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#if HAVE_CONFIG_H
#include <config.h>
#endif

#include "modules.h"

static unsigned int type = INT_NULL;
static unsigned long long inf,max;
static unsigned int current_evt = 0;

static int init (int mtype, unsigned long long *minf,
                 unsigned long long *mmax) {
    type = mtype;
    if (mtype == INT_NULL) return 0;
    if ((mtype < INT_EVT) || (mtype > INT_TIME)) return -1;
    if (*minf > *mmax) return -2;
    inf = *minf; max = *mmax;
    return 0;
}

static int accept_inter (ptt_timestamp_t *time, int nb_event) {
    switch (type) {
        case INT_NULL: break;
        case INT_EVT: current_evt+=nb_event;
                      if (current_evt <= inf) return 0;
                      else if (current_evt - nb_event > max) return 2;
                      else return 1;
                      break;
        case INT_TIME: if (*time < inf) return 0;
                       else if (*time > max) return 2;
                       break;
    }
    return 1;
}

struct interval interval = {
    .init = init,
    .accept = accept_inter
};