6a9093cc48
Exposes the non-atomicity of user_data opertaions at this time because we call finish() while still locked and modifying the object. In fact, I'm surprised that it doesn't deadlock. It should.
346 lines
9.0 KiB
C
346 lines
9.0 KiB
C
/*
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* Copyright © 2011 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Behdad Esfahbod
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*/
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#include "hb-test.h"
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/* Unit tests for hb-object-private.h */
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#ifdef HAVE_FREETYPE
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#include <hb-ft.h>
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#endif
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static void *
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create_blob (void)
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{
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static char data[] = "test data";
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return hb_blob_create (data, sizeof (data), HB_MEMORY_MODE_READONLY, NULL, NULL);
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}
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static void *
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create_blob_inert (void)
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{
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return hb_blob_get_empty ();
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}
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static void *
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create_buffer (void)
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{
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return hb_buffer_create (0);
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}
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static void *
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create_buffer_inert (void)
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{
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return hb_buffer_create (-1);
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}
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static void *
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create_face (void)
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{
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hb_blob_t *blob = (hb_blob_t *) create_blob ();
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hb_face_t *face = hb_face_create_for_data (blob, 0);
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hb_blob_destroy (blob);
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return face;
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}
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static void *
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create_face_inert (void)
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{
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return hb_face_create_for_data ((hb_blob_t *) create_blob_inert (), 0);
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}
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static void *
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create_font (void)
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{
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hb_face_t *face = (hb_face_t *) create_face ();
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hb_font_t *font = hb_font_create (face);
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hb_face_destroy (face);
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return font;
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}
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static void *
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create_font_inert (void)
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{
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return hb_font_create (create_face_inert ());
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}
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static void *
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create_font_funcs (void)
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{
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return hb_font_funcs_create ();
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}
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static void *
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create_font_funcs_inert (void)
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{
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#ifdef HAVE_FREETYPE
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return hb_ft_get_font_funcs ();
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#else
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return NULL;
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#endif
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}
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static void *
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create_unicode_funcs (void)
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{
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return hb_unicode_funcs_create (NULL);
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}
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static void *
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create_unicode_funcs_inert (void)
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{
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return hb_unicode_funcs_get_default ();
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}
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typedef void *(*create_func_t) (void);
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typedef void *(*reference_func_t) (void *obj);
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typedef void (*destroy_func_t) (void *obj);
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typedef hb_bool_t (*set_user_data_func_t) (void *obj, hb_user_data_key_t *key, void *data, hb_destroy_func_t destroy);
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typedef void * (*get_user_data_func_t) (void *obj, hb_user_data_key_t *key);
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typedef void (*make_immutable_func_t) (void *obj);
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typedef hb_bool_t (*is_immutable_func_t) (void *obj);
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typedef struct {
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create_func_t create;
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create_func_t create_inert;
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reference_func_t reference;
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destroy_func_t destroy;
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set_user_data_func_t set_user_data;
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get_user_data_func_t get_user_data;
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make_immutable_func_t make_immutable;
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is_immutable_func_t is_immutable;
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const char *name;
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} object_t;
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#define OBJECT_WITHOUT_IMMUTABILITY(name) \
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{ \
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(create_func_t) create_##name, \
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(create_func_t) create_##name##_inert, \
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(reference_func_t) hb_##name##_reference, \
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(destroy_func_t) hb_##name##_destroy, \
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(set_user_data_func_t) hb_##name##_set_user_data, \
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(get_user_data_func_t) hb_##name##_get_user_data, \
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(make_immutable_func_t) NULL, \
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(is_immutable_func_t) NULL, \
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#name, \
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}
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#define OBJECT_WITH_IMMUTABILITY(name) \
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{ \
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(create_func_t) create_##name, \
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(create_func_t) create_##name##_inert, \
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(reference_func_t) hb_##name##_reference, \
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(destroy_func_t) hb_##name##_destroy, \
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(set_user_data_func_t) hb_##name##_set_user_data, \
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(get_user_data_func_t) hb_##name##_get_user_data, \
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(make_immutable_func_t) hb_##name##_make_immutable, \
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(is_immutable_func_t) hb_##name##_is_immutable, \
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#name, \
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}
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static const object_t objects[] =
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{
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OBJECT_WITHOUT_IMMUTABILITY (buffer),
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OBJECT_WITHOUT_IMMUTABILITY (face),
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OBJECT_WITHOUT_IMMUTABILITY (font),
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OBJECT_WITH_IMMUTABILITY (blob),
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OBJECT_WITH_IMMUTABILITY (font_funcs),
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OBJECT_WITH_IMMUTABILITY (unicode_funcs)
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};
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#undef OBJECT
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#define MAGIC0 0x12345678
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#define MAGIC1 0x76543210
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typedef struct {
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int value;
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gboolean freed;
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} data_t;
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static int global_data;
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static void global_free_up (void *p G_GNUC_UNUSED)
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{
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global_data++;
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}
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static void free_up0 (void *p)
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{
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data_t *data = (data_t *) p;
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g_assert_cmphex (data->value, ==, MAGIC0);
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g_assert (!data->freed);
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data->freed = TRUE;
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}
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static void free_up1 (void *p)
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{
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data_t *data = (data_t *) p;
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g_assert_cmphex (data->value, ==, MAGIC1);
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g_assert (!data->freed);
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data->freed = TRUE;
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}
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typedef struct {
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const object_t *klass;
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void *object;
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hb_user_data_key_t key;
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} deadlock_test_t;
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static void free_deadlock_test (void *p)
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{
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deadlock_test_t *t = (deadlock_test_t *) p;
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g_assert (NULL == t->klass->get_user_data (t->object, &t->key));
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}
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static void
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test_object (void)
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{
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unsigned int i;
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for (i = 0; i < G_N_ELEMENTS (objects); i++) {
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const object_t *o = &objects[i];
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void *obj;
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hb_user_data_key_t key[2];
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{
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unsigned int i;
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data_t data[2] = {{MAGIC0, FALSE}, {MAGIC1, FALSE}};
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deadlock_test_t deadlock_test;
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g_test_message ("Testing object %s", o->name);
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g_test_message ("->create()");
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obj = o->create ();
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g_assert (obj);
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g_assert (obj == o->reference (obj));
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o->destroy (obj);
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if (o->is_immutable)
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g_assert (!o->is_immutable (obj));
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g_assert (o->set_user_data (obj, &key[0], &data[0], free_up0));
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g_assert (o->get_user_data (obj, &key[0]) == &data[0]);
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if (o->is_immutable) {
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o->make_immutable (obj);
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g_assert (o->is_immutable (obj));
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}
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/* Should still work even if object is made immutable */
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g_assert (o->set_user_data (obj, &key[1], &data[1], free_up1));
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g_assert (o->get_user_data (obj, &key[1]) == &data[1]);
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g_assert (!o->set_user_data (obj, NULL, &data[0], free_up0));
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g_assert (o->get_user_data (obj, &key[0]) == &data[0]);
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g_assert (o->set_user_data (obj, &key[0], &data[1], NULL));
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g_assert (data[0].freed);
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g_assert (o->get_user_data (obj, &key[0]) == &data[1]);
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g_assert (!data[1].freed);
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data[0].freed = FALSE;
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g_assert (o->set_user_data (obj, &key[0], &data[0], free_up0));
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g_assert (!data[0].freed);
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g_assert (o->set_user_data (obj, &key[0], NULL, NULL));
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g_assert (data[0].freed);
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data[0].freed = FALSE;
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global_data = 0;
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g_assert (o->set_user_data (obj, &key[0], &data[0], free_up0));
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g_assert_cmpuint (global_data, ==, 0);
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g_assert (o->set_user_data (obj, &key[0], NULL, global_free_up));
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g_assert_cmpuint (global_data, ==, 0);
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g_assert (o->set_user_data (obj, &key[0], NULL, NULL));
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g_assert_cmpuint (global_data, ==, 1);
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global_data = 0;
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for (i = 2; i < 1000; i++)
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g_assert (o->set_user_data (obj, &key[i], &data[i], global_free_up));
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for (i = 2; i < 1000; i++)
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g_assert (o->get_user_data (obj, &key[i]) == &data[i]);
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for (i = 100; i < 1000; i++)
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g_assert (o->set_user_data (obj, &key[i], NULL, NULL));
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for (i = 2; i < 100; i++)
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g_assert (o->get_user_data (obj, &key[i]) == &data[i]);
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for (i = 100; i < 1000; i++)
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g_assert (!o->get_user_data (obj, &key[i]));
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g_assert_cmpuint (global_data, ==, 900);
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/* Test set_user_data where the destroy() func calls user_data functions.
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* Make sure it doesn't deadlock or corrupt memory. */
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deadlock_test.klass = o;
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deadlock_test.object = obj;
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g_assert (o->set_user_data (obj, &deadlock_test.key, &deadlock_test, free_deadlock_test));
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g_assert (o->set_user_data (obj, &deadlock_test.key, NULL, NULL));
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g_assert (!data[1].freed);
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o->destroy (obj);
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g_assert (data[0].freed);
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g_assert (data[1].freed);
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g_assert_cmpuint (global_data, ==, 1000-2);
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}
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{
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data_t data[2] = {{MAGIC0, FALSE}, {MAGIC1, FALSE}};
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g_test_message ("->create_inert()");
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obj = o->create_inert ();
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if (!obj)
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continue;
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g_assert (obj == o->reference (obj));
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o->destroy (obj);
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if (o->is_immutable)
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g_assert (o->is_immutable (obj));
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g_assert (!o->set_user_data (obj, &key[0], &data[0], free_up0));
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g_assert (!o->get_user_data (obj, &key[0]));
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o->destroy (obj);
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o->destroy (obj);
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o->destroy (obj);
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o->destroy (obj);
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o->destroy (obj);
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g_assert (!data[0].freed);
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}
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}
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}
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int
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main (int argc, char **argv)
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{
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hb_test_init (&argc, &argv);
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hb_test_add (test_object);
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return hb_test_run ();
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}
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