source: mainline/uspace/app/top/screen.c@ 8f56d93

/*
 * Copyright (c) 2010 Stanislav Kozina
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup top
 * @brief Top utility.
 * @{
 */
/**
 * @file
 */

#include <stdio.h>
#include <io/console.h>
#include <vfs/vfs.h>
#include <load.h>
#include <kernel/ps/taskinfo.h>
#include <ps.h>
#include "screen.h"
#include "top.h"

int rows;
int colls;

#define WHITE 0xf0f0f0
#define BLACK 0x000000

static void resume_normal(void)
{
        fflush(stdout);
        console_set_rgb_color(fphone(stdout), 0, WHITE);
}

void screen_init(void)
{
        console_get_size(fphone(stdout), &colls, &rows);
        console_cursor_visibility(fphone(stdout), 0);
        resume_normal();
        clear_screen();
}

void clear_screen(void)
{
        console_clear(fphone(stdout));
        moveto(0, 0);
}

void moveto(int r, int c)
{
        fflush(stdout);
        console_goto(fphone(stdout), c, r);
}

static inline void print_time(data_t *data)
{
        printf("%02d:%02d:%02d ", data->hours, data->minutes, data->seconds);
}

static inline void print_uptime(data_t *data)
{
        printf("up %4d days, %02d:%02d:%02d, ", data->uptime_d, data->uptime_h,
                data->uptime_m, data->uptime_s);
}

static inline void print_load(data_t *data)
{
        puts("load avarage: ");
        print_load_fragment(data->load[0], 2);
        puts(" ");
        print_load_fragment(data->load[1], 2);
        puts(" ");
        print_load_fragment(data->load[2], 2);
}

static inline void print_taskstat(data_t *data)
{
        puts("Tasks: ");
        printf("%4u total", data->task_count);
}

static inline void print_tasks(data_t *data, int row)
{
        int i;
        for (i = 0; i < (int)data->task_count; ++i) {
                if (row + i > rows)
                        return;
                task_info_t taskinfo;
                get_task_info(data->tasks[i], &taskinfo);
                printf("%8llu %8u %8u %12llu %12llu %s\n", taskinfo.taskid,
                        taskinfo.thread_count, taskinfo.pages, taskinfo.ucycles / 1000 / 1000,
                        taskinfo.kcycles / 1000 / 1000, taskinfo.name);
        }
}


static inline void print_head(void)
{
        fflush(stdout);
        console_set_rgb_color(fphone(stdout), WHITE, BLACK);
        printf("      ID  Threads    Pages      uCycles      kCycles Name");
        int i;
        for (i = 60; i < colls; ++i)
                puts(" ");
        fflush(stdout);
        console_set_rgb_color(fphone(stdout), BLACK, WHITE);
}

void print_data(data_t *data)
{
        clear_screen();
        fflush(stdout);
        printf("top - ");
        print_time(data);
        print_uptime(data);
        print_load(data);
        puts("\n");
        print_taskstat(data);
        puts("\n\n");
        print_head();
        puts("\n");
        print_tasks(data, 4);
        fflush(stdout);
}

/** @}
 */