Grcov report - pthread-similar.c

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/*

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 * Copyright 2009 Benjamin Otte

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

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 * obtaining a copy of this software and associated documentation

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 * files (the "Software"), to deal in the Software without

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 * restriction, including without limitation the rights to use, copy,

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 * modify, merge, publish, distribute, sublicense, and/or sell copies

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

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

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 * The above copyright notice and this permission notice shall be

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 * included in all copies or substantial portions of the Software.

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

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 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

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 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

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 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

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 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

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

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 * SOFTWARE.

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 * Author: Benjamin Otte <otte@gnome.org>

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*/

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#include "cairo-test.h"

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#include <pthread.h>

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#define N_THREADS 8

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#define WIDTH 64

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#define HEIGHT 8

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static void *

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draw_thread (void *arg)

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    cairo_surface_t *surface = arg;

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    cairo_t *cr;

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    int x, y;

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    cr = cairo_create (surface);

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    cairo_surface_destroy (surface);

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    for (y = 0; y < HEIGHT; y++) {

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12480

        for (x = 0; x < WIDTH; x++) {

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12288

            cairo_rectangle (cr, x, y, 1, 1);

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12288

            cairo_set_source_rgba (cr, 0, 0.75, 0.75, (double) x / WIDTH);

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12288

            cairo_fill (cr);

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    surface = cairo_surface_reference (cairo_get_target (cr));

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    cairo_destroy (cr);

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    return surface;

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static cairo_test_status_t

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draw (cairo_t *cr, int width, int height)

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    pthread_t threads[N_THREADS];

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3

    cairo_test_status_t test_status = CAIRO_TEST_SUCCESS;

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    int i;

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    for (i = 0; i < N_THREADS; i++) {

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	cairo_surface_t *surface;

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        surface = cairo_surface_create_similar (cairo_get_target (cr),

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						CAIRO_CONTENT_COLOR,

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						WIDTH, HEIGHT);

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        if (pthread_create (&threads[i], NULL, draw_thread, surface) != 0) {

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	    threads[i] = pthread_self ();

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            test_status = cairo_test_status_from_status (cairo_test_get_context (cr),

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							 cairo_surface_status (surface));

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            cairo_surface_destroy (surface);

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	    break;

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    for (i = 0; i < N_THREADS; i++) {

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	void *surface;

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        if (pthread_equal (threads[i], pthread_self ()))

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            break;

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        if (pthread_join (threads[i], &surface) == 0) {

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	    cairo_set_source_surface (cr, surface, 0, 0);

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	    cairo_surface_destroy (surface);

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	    cairo_paint (cr);

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	    cairo_translate (cr, 0, HEIGHT);

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	} else {

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            test_status = CAIRO_TEST_FAILURE;

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    return test_status;

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CAIRO_TEST (pthread_similar,

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	    "Draw lots of 1x1 rectangles on similar surfaces in lots of threads",

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	    "threads", /* keywords */

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	    NULL, /* requirements */

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	    WIDTH, HEIGHT * N_THREADS,

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	    NULL, draw)