/* gcc `pkg-config --cflags --libs cairo` -lpthread multi-thread-text.c -o multi-thread-text */

/*
 * Copyright © 2005 Red Hat, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software
 * and its documentation for any purpose is hereby granted without
 * fee, provided that the above copyright notice appear in all copies
 * and that both that copyright notice and this permission notice
 * appear in supporting documentation, and that the name of
 * Red Hat, Inc. not be used in advertising or publicity pertaining to
 * distribution of the software without specific, written prior
 * permission. Red Hat, Inc. makes no representations about the
 * suitability of this software for any purpose.  It is provided "as
 * is" without express or implied warranty.
 *
 * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * Author: Carl D. Worth <cworth@cworth.org>
 */

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <cairo.h>
#include <pthread.h>

static void *
start (void *closure)
{
    cairo_surface_t *surface;
    cairo_t *cr;

    surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 100, 100);
    cr = cairo_create (surface);

    cairo_move_to (cr, 10, 10);

    cairo_set_font_size (cr, 10);
    cairo_show_text (cr, "Hello world.\n");

    cairo_set_font_size (cr, 9);
    cairo_show_text (cr, "Hello world.\n");

    cairo_set_font_size (cr, 8);
    cairo_show_text (cr, "Hello world.\n");

    cairo_destroy (cr);
    cairo_surface_destroy (surface);

    return NULL;
}

int
main (int argc, char *argv[0])
{
    int i, num_threads;
    pthread_t *pthread;

    if (argc > 1) {
	num_threads = atoi (argv[1]);
    } else {
	num_threads = 6;
	printf ("Running with default value of %d threads.\n"
		"To change, call: %s <number_of_threads>\n",
		num_threads, argv[0]);
    }

    pthread = malloc (num_threads * sizeof (pthread_t));
    assert (pthread != NULL);

    for (i = 0; i < num_threads; i++)
	pthread_create (&pthread[i], NULL, start, NULL);

    for (i = 0; i < num_threads; i++)
	pthread_join (pthread[i], NULL);

    return 0;
}