Archipelago » qemu

/*

 * QEMU progress printing utility functions

 *

 * Copyright (C) 2011 Jes Sorensen <Jes.Sorensen@redhat.com>

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#include "qemu-common.h"

#include "osdep.h"

#include "sysemu.h"

#include <stdio.h>

struct progress_state {

    int enabled;

    float current;

    float last_print;

    float min_skip;

};

static struct progress_state state;

/*

 * Simple progress print function.

 * @percent relative percent of current operation

 * @max percent of total operation

 */

static void progress_simple_print(void)

{

    if (state.enabled) {

        printf("    (%3.2f/100%%)\r", state.current);

        fflush(stdout);

    }

}

static void progress_simple_end(void)

{

    if (state.enabled) {

        printf("\n");

    }

}

void qemu_progress_init(int enabled, float min_skip)

{

    state.enabled = enabled;

    state.min_skip = min_skip;

}

void qemu_progress_end(void)

{

    progress_simple_end();

}

void qemu_progress_print(float percent, int max)

{

    float current;

    if (max == 0) {

        current = percent;

    } else {

        current = state.current + percent / 100 * max;

    }

    if (current > 100) {

        current = 100;

    }

    state.current = current;

    if (current > (state.last_print + state.min_skip) ||

        (current == 100) || (current == 0)) {

        state.last_print = state.current;

        progress_simple_print();

    }

}