ptt_stat.c

来自「linux下的多线程调试工具」· C语言 代码 · 共 83 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 <stdlib.h>
#include <unistd.h>
#include "types.h"
#include "modules.h"

extern struct give_name give_name;
extern struct interval interval;
extern struct read_trace read_trace;
extern struct stat stat;

static void usage () {
    fprintf (stderr, "Usage : ptt-stat [option] file\n");
    fprintf (stderr, "-a alias_file : use alias to describe objects\n");
    fprintf (stderr, "-h : this small usage guide\n");
}

/* compute and display statistics on the binary file */
int main (int argc, char *argv[]) {
    ptt_header_t head;
    int option;
    extern char *optarg;
    extern int optind, optopt;
    const char * optstring = "+ha:";
    ptt_event_t event;
    ptt_timestamp_t time;
    pid_t pid;
    int ret;
    char *alias_file = NULL;

    while ((option = getopt (argc, argv, optstring)) != -1) {
        switch (option) {
            case 'a': alias_file = optarg; continue;
            case '?':
                fprintf (stderr, "Unrecognized option: -%c\n", optopt);
            case 'h': usage(); return 1;
	}
    }
    if (argc - optind < 1) { usage(); return 1; }

    /* init read submodule */
    ret = give_name.init(alias_file);
    if (ret < 0) return -ret;
    ret =interval.init(INT_NULL,0,0);
    if (ret < 0) return -ret;
    /* Read the header */
    ret = read_trace.init(argv[optind], &head);
    if (ret < 0) return -ret;	
    /* Initialize the statistics */
    ret = stat.init();
    if (ret < 0) return -ret;
	
    while (read_trace.read_fast (&pid, &time, &event) > 0) {
        ret = stat.handle(pid, time, event);
	if (ret < 0) return -ret;
    }
    stat.display();
    stat.close();
    read_trace.close();
    return -ret;
}