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|
/* -*- mode: C; c-file-style: "gnu" -*- */
/* dbus-object-tree.c DBusObjectTree (internals of DBusConnection)
*
* Copyright (C) 2003 Red Hat Inc.
*
* Licensed under the Academic Free License version 1.2
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "dbus-object-tree.h"
#include "dbus-connection-internal.h"
#include "dbus-internals.h"
#include "dbus-hash.h"
#include "dbus-protocol.h"
#include <string.h>
#include <stdlib.h>
/**
* @defgroup DBusObjectTree A hierarchy of objects with container-contained relationship
* @ingroup DBusInternals
* @brief DBusObjectTree is used by DBusConnection to track the object tree
*
* Types and functions related to DBusObjectTree. These
* are all internal.
*
* @todo this is totally broken, because of the following case:
* /foo, /foo/bar, /foo/baz
* if we then receive a message to /foo/baz we need to hand it
* to /foo/baz and /foo but not /foo/bar. So we should be
* using a real tree structure as with GConfListeners.
*
* @{
*/
typedef struct DBusObjectSubtree DBusObjectSubtree;
static DBusObjectSubtree* _dbus_object_subtree_new (const char *name,
const DBusObjectPathVTable *vtable,
void *user_data);
static void _dbus_object_subtree_ref (DBusObjectSubtree *subtree);
static void _dbus_object_subtree_unref (DBusObjectSubtree *subtree);
struct DBusObjectTree
{
int refcount;
DBusConnection *connection;
DBusObjectSubtree *root;
};
struct DBusObjectSubtree
{
DBusAtomic refcount;
DBusObjectSubtree *parent;
DBusObjectPathUnregisterFunction unregister_function;
DBusObjectPathMessageFunction message_function;
void *user_data;
DBusObjectSubtree **subtrees;
int n_subtrees;
unsigned int subtrees_sorted : 1;
char name[1]; /**< Allocated as large as necessary */
};
DBusObjectTree*
_dbus_object_tree_new (DBusConnection *connection)
{
DBusObjectTree *tree;
/* the connection passed in here isn't fully constructed,
* so don't do anything more than store a pointer to
* it
*/
tree = dbus_new0 (DBusObjectTree, 1);
if (tree == NULL)
goto oom;
tree->refcount = 1;
tree->connection = connection;
tree->root = _dbus_object_subtree_new ("/", NULL, NULL);
if (tree->root == NULL)
goto oom;
return tree;
oom:
if (tree)
{
dbus_free (tree);
}
return NULL;
}
void
_dbus_object_tree_ref (DBusObjectTree *tree)
{
_dbus_assert (tree->refcount > 0);
tree->refcount += 1;
}
void
_dbus_object_tree_unref (DBusObjectTree *tree)
{
_dbus_assert (tree->refcount > 0);
tree->refcount -= 1;
if (tree->refcount == 0)
{
_dbus_object_tree_free_all_unlocked (tree);
dbus_free (tree);
}
}
static int
subtree_cmp (DBusObjectSubtree *subtree_a,
DBusObjectSubtree *subtree_b)
{
return strcmp (subtree_a->name, subtree_b->name);
}
static int
subtree_qsort_cmp (const void *a,
const void *b)
{
DBusObjectSubtree **subtree_a_p = (void*) a;
DBusObjectSubtree **subtree_b_p = (void*) b;
return subtree_cmp (*subtree_a_p, *subtree_b_p);
}
static void
ensure_sorted (DBusObjectSubtree *subtree)
{
if (subtree->subtrees && !subtree->subtrees_sorted)
{
qsort (subtree->subtrees,
subtree->n_subtrees,
sizeof (DBusObjectSubtree*),
subtree_qsort_cmp);
subtree->subtrees_sorted = TRUE;
}
}
#define VERBOSE_FIND 0
static DBusObjectSubtree*
find_subtree_recurse (DBusObjectSubtree *subtree,
const char **path,
dbus_bool_t return_deepest_match,
dbus_bool_t create_if_not_found,
int *index_in_parent)
{
int i;
_dbus_assert (!(return_deepest_match && create_if_not_found));
if (path[0] == NULL)
{
#if VERBOSE_FIND
_dbus_verbose (" path exhausted, returning %s\n",
subtree->name);
#endif
return subtree;
}
#if VERBOSE_FIND
_dbus_verbose (" searching children of %s for %s\n",
subtree->name, path[0]);
#endif
ensure_sorted (subtree);
/* FIXME we should do a binary search here instead
* of O(n)
*/
i = 0;
while (i < subtree->n_subtrees)
{
int v;
v = strcmp (path[0], subtree->subtrees[i]->name);
#if VERBOSE_FIND
_dbus_verbose (" %s cmp %s = %d\n",
path[0], subtree->subtrees[i]->name,
v);
#endif
if (v == 0)
{
if (index_in_parent)
{
#if VERBOSE_FIND
_dbus_verbose (" storing parent index %d\n", i);
#endif
*index_in_parent = i;
}
if (return_deepest_match)
{
DBusObjectSubtree *next;
next = find_subtree_recurse (subtree->subtrees[i],
&path[1], return_deepest_match,
create_if_not_found, index_in_parent);
if (next == NULL)
{
#if VERBOSE_FIND
_dbus_verbose (" no deeper match found, returning %s\n",
subtree->name);
#endif
return subtree;
}
else
return next;
}
else
return find_subtree_recurse (subtree->subtrees[i],
&path[1], return_deepest_match,
create_if_not_found, index_in_parent);
}
else if (v < 0)
{
goto not_found;
}
++i;
}
not_found:
#if VERBOSE_FIND
_dbus_verbose (" no match found, current tree %s, create_if_not_found = %d\n",
subtree->name, create_if_not_found);
#endif
if (create_if_not_found)
{
DBusObjectSubtree* child;
DBusObjectSubtree **new_subtrees;
int new_n_subtrees;
#if VERBOSE_FIND
_dbus_verbose (" creating subtree %s\n",
path[0]);
#endif
child = _dbus_object_subtree_new (path[0],
NULL, NULL);
if (child == NULL)
return NULL;
/* FIXME we should do the "double alloc each time" standard thing */
new_n_subtrees = subtree->n_subtrees + 1;
new_subtrees = dbus_realloc (subtree->subtrees,
new_n_subtrees * sizeof (DBusObjectSubtree*));
if (new_subtrees == NULL)
{
child->unregister_function = NULL;
child->message_function = NULL;
_dbus_object_subtree_unref (child);
return FALSE;
}
new_subtrees[subtree->n_subtrees] = child;
if (index_in_parent)
*index_in_parent = subtree->n_subtrees;
subtree->subtrees_sorted = FALSE;
subtree->n_subtrees = new_n_subtrees;
subtree->subtrees = new_subtrees;
child->parent = subtree;
return find_subtree_recurse (child,
&path[1], return_deepest_match,
create_if_not_found, index_in_parent);
}
else
return return_deepest_match ? subtree : NULL;
}
static DBusObjectSubtree*
find_subtree (DBusObjectTree *tree,
const char **path,
int *index_in_parent)
{
DBusObjectSubtree *subtree;
#if VERBOSE_FIND
_dbus_verbose ("Looking for exact registered subtree\n");
#endif
subtree = find_subtree_recurse (tree->root, path, FALSE, FALSE, index_in_parent);
if (subtree && subtree->message_function == NULL)
return NULL;
else
return subtree;
}
static DBusObjectSubtree*
find_handler (DBusObjectTree *tree,
const char **path)
{
#if VERBOSE_FIND
_dbus_verbose ("Looking for deepest handler\n");
#endif
return find_subtree_recurse (tree->root, path, TRUE, FALSE, NULL);
}
static DBusObjectSubtree*
ensure_subtree (DBusObjectTree *tree,
const char **path)
{
#if VERBOSE_FIND
_dbus_verbose ("Ensuring subtree\n");
#endif
return find_subtree_recurse (tree->root, path, FALSE, TRUE, NULL);
}
/**
* Registers a new subtree in the global object tree.
*
* @param tree the global object tree
* @param path NULL-terminated array of path elements giving path to subtree
* @param vtable the vtable used to traverse this subtree
* @param user_data user data to pass to methods in the vtable
* @returns #FALSE if not enough memory
*/
dbus_bool_t
_dbus_object_tree_register (DBusObjectTree *tree,
const char **path,
const DBusObjectPathVTable *vtable,
void *user_data)
{
DBusObjectSubtree *subtree;
_dbus_assert (tree != NULL);
_dbus_assert (vtable->message_function != NULL);
_dbus_assert (path != NULL);
subtree = ensure_subtree (tree, path);
if (subtree == NULL)
return FALSE;
if (subtree->message_function != NULL)
{
_dbus_warn ("A handler is already registered for the path starting with path[0] = \"%s\"\n",
path[0] ? path[0] : "null");
return FALSE;
}
subtree->message_function = vtable->message_function;
subtree->unregister_function = vtable->unregister_function;
subtree->user_data = user_data;
return TRUE;
}
/**
* Unregisters an object subtree that was registered with the
* same path.
*
* @param tree the global object tree
* @param path path to the subtree (same as the one passed to _dbus_object_tree_register())
*/
void
_dbus_object_tree_unregister_and_unlock (DBusObjectTree *tree,
const char **path)
{
int i;
DBusObjectSubtree *subtree;
DBusObjectPathUnregisterFunction unregister_function;
void *user_data;
DBusConnection *connection;
_dbus_assert (path != NULL);
subtree = find_subtree (tree, path, &i);
if (subtree == NULL)
{
_dbus_warn ("Attempted to unregister path (path[0] = %s path[1] = %s) which isn't registered\n",
path[0] ? path[0] : "null",
path[1] ? path[1] : "null");
return;
}
_dbus_assert (subtree->parent == NULL ||
(i >= 0 && subtree->parent->subtrees[i] == subtree));
subtree->message_function = NULL;
unregister_function = subtree->unregister_function;
user_data = subtree->user_data;
subtree->unregister_function = NULL;
subtree->user_data = NULL;
/* If we have no subtrees of our own, remove from
* our parent (FIXME could also be more aggressive
* and remove our parent if it becomes empty)
*/
if (subtree->parent && subtree->n_subtrees == 0)
{
/* assumes a 0-byte memmove is OK */
memmove (&subtree->parent->subtrees[i],
&subtree->parent->subtrees[i+1],
(subtree->parent->n_subtrees - i - 1) *
sizeof (subtree->parent->subtrees[0]));
subtree->parent->n_subtrees -= 1;
subtree->parent = NULL;
_dbus_object_subtree_unref (subtree);
}
subtree = NULL;
connection = tree->connection;
/* Unlock and call application code */
#ifdef DBUS_BUILD_TESTS
if (connection)
#endif
{
_dbus_connection_ref_unlocked (connection);
_dbus_connection_unlock (connection);
}
if (unregister_function)
(* unregister_function) (connection, user_data);
#ifdef DBUS_BUILD_TESTS
if (connection)
#endif
dbus_connection_unref (connection);
}
static void
free_subtree_recurse (DBusConnection *connection,
DBusObjectSubtree *subtree)
{
/* Delete them from the end, for slightly
* more robustness against odd reentrancy.
*/
while (subtree->n_subtrees > 0)
{
DBusObjectSubtree *child;
child = subtree->subtrees[subtree->n_subtrees - 1];
subtree->subtrees[subtree->n_subtrees - 1] = NULL;
subtree->n_subtrees -= 1;
child->parent = NULL;
free_subtree_recurse (connection, child);
}
/* Call application code */
if (subtree->unregister_function)
{
(* subtree->unregister_function) (connection,
subtree->user_data);
subtree->message_function = NULL;
subtree->unregister_function = NULL;
subtree->user_data = NULL;
}
/* Now free ourselves */
_dbus_object_subtree_unref (subtree);
}
/**
* Free all the handlers in the tree. Lock on tree's connection
* must not be held.
*
* @param tree the object tree
*/
void
_dbus_object_tree_free_all_unlocked (DBusObjectTree *tree)
{
if (tree->root)
free_subtree_recurse (tree->connection,
tree->root);
tree->root = NULL;
}
/**
* Tries to dispatch a message by directing it to handler for the
* object path listed in the message header, if any. Messages are
* dispatched first to the registered handler that matches the largest
* number of path elements; that is, message to /foo/bar/baz would go
* to the handler for /foo/bar before the one for /foo.
*
* @todo thread problems
*
* @param tree the global object tree
* @param message the message to dispatch
* @returns whether message was handled successfully
*/
DBusHandlerResult
_dbus_object_tree_dispatch_and_unlock (DBusObjectTree *tree,
DBusMessage *message)
{
char **path;
DBusList *list;
DBusList *link;
DBusHandlerResult result;
DBusObjectSubtree *subtree;
#if 0
_dbus_verbose ("Dispatch of message by object path\n");
#endif
path = NULL;
if (!dbus_message_get_path_decomposed (message, &path))
{
_dbus_verbose ("No memory to get decomposed path\n");
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
if (path == NULL)
{
_dbus_verbose ("No path field in message\n");
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
/* Find the deepest path that covers the path in the message */
subtree = find_handler (tree, (const char**) path);
/* Build a list of all paths that cover the path in the message */
list = NULL;
while (subtree != NULL)
{
if (subtree->message_function != NULL)
{
_dbus_object_subtree_ref (subtree);
/* run deepest paths first */
if (!_dbus_list_append (&list, subtree))
{
result = DBUS_HANDLER_RESULT_NEED_MEMORY;
_dbus_object_subtree_unref (subtree);
goto free_and_return;
}
}
subtree = subtree->parent;
}
_dbus_verbose ("%d handlers in the path tree for this message\n",
_dbus_list_get_length (&list));
/* Invoke each handler in the list */
result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
link = _dbus_list_get_first_link (&list);
while (link != NULL)
{
DBusList *next = _dbus_list_get_next_link (&list, link);
subtree = link->data;
/* message_function is NULL if we're unregistered
* due to reentrancy
*/
if (subtree->message_function)
{
DBusObjectPathMessageFunction message_function;
void *user_data;
message_function = subtree->message_function;
user_data = subtree->user_data;
#if 0
_dbus_verbose (" (invoking a handler)\n");
#endif
#ifdef DBUS_BUILD_TESTS
if (tree->connection)
#endif
_dbus_connection_unlock (tree->connection);
/* FIXME you could unregister the subtree in another thread
* before we invoke the callback, and I can't figure out a
* good way to solve this.
*/
result = (* message_function) (tree->connection,
message,
user_data);
if (result != DBUS_HANDLER_RESULT_NOT_YET_HANDLED)
goto free_and_return;
#ifdef DBUS_BUILD_TESTS
if (tree->connection)
#endif
_dbus_connection_lock (tree->connection);
}
link = next;
}
#ifdef DBUS_BUILD_TESTS
if (tree->connection)
#endif
_dbus_connection_unlock (tree->connection);
free_and_return:
while (list != NULL)
{
link = _dbus_list_get_first_link (&list);
_dbus_object_subtree_unref (link->data);
_dbus_list_remove_link (&list, link);
}
dbus_free_string_array (path);
return result;
}
/**
* Allocates a subtree object.
*
* @param name name to duplicate.
* @returns newly-allocated subtree
*/
static DBusObjectSubtree*
allocate_subtree_object (const char *name)
{
int len;
DBusObjectSubtree *subtree;
const size_t front_padding = _DBUS_STRUCT_OFFSET (DBusObjectSubtree, name);
_dbus_assert (name != NULL);
len = strlen (name);
subtree = dbus_malloc (front_padding + (len + 1));
if (subtree == NULL)
return NULL;
memcpy (subtree->name, name, len + 1);
return subtree;
}
static DBusObjectSubtree*
_dbus_object_subtree_new (const char *name,
const DBusObjectPathVTable *vtable,
void *user_data)
{
DBusObjectSubtree *subtree;
subtree = allocate_subtree_object (name);
if (subtree == NULL)
goto oom;
_dbus_assert (name != NULL);
subtree->parent = NULL;
if (vtable)
{
subtree->message_function = vtable->message_function;
subtree->unregister_function = vtable->unregister_function;
}
else
{
subtree->message_function = NULL;
subtree->unregister_function = NULL;
}
subtree->user_data = user_data;
subtree->refcount.value = 1;
subtree->subtrees = NULL;
subtree->n_subtrees = 0;
subtree->subtrees_sorted = TRUE;
return subtree;
oom:
if (subtree)
{
dbus_free (subtree);
}
return NULL;
}
static void
_dbus_object_subtree_ref (DBusObjectSubtree *subtree)
{
_dbus_assert (subtree->refcount.value > 0);
_dbus_atomic_inc (&subtree->refcount);
}
static void
_dbus_object_subtree_unref (DBusObjectSubtree *subtree)
{
_dbus_assert (subtree->refcount.value > 0);
if (_dbus_atomic_dec (&subtree->refcount) == 1)
{
_dbus_assert (subtree->unregister_function == NULL);
_dbus_assert (subtree->message_function == NULL);
dbus_free (subtree->subtrees);
dbus_free (subtree);
}
}
/** @} */
#ifdef DBUS_BUILD_TESTS
#include "dbus-test.h"
#include <stdio.h>
static char*
flatten_path (const char **path)
{
DBusString str;
int i;
char *s;
if (!_dbus_string_init (&str))
return NULL;
i = 0;
while (path[i])
{
if (!_dbus_string_append_byte (&str, '/'))
goto nomem;
if (!_dbus_string_append (&str, path[i]))
goto nomem;
++i;
}
if (!_dbus_string_steal_data (&str, &s))
goto nomem;
_dbus_string_free (&str);
return s;
nomem:
_dbus_string_free (&str);
return NULL;
}
/* Returns TRUE if container is a parent of child
*/
static dbus_bool_t
path_contains (const char **container,
const char **child)
{
int i;
i = 0;
while (child[i] != NULL)
{
int v;
if (container[i] == NULL)
return TRUE; /* container ran out, child continues;
* thus the container is a parent of the
* child.
*/
_dbus_assert (container[i] != NULL);
_dbus_assert (child[i] != NULL);
v = strcmp (container[i], child[i]);
if (v != 0)
return FALSE; /* they overlap until here and then are different,
* not overlapping
*/
++i;
}
/* Child ran out; if container also did, they are equal;
* otherwise, the child is a parent of the container.
*/
if (container[i] == NULL)
return TRUE; /* equal is counted as containing */
else
return FALSE;
}
static void
spew_subtree_recurse (DBusObjectSubtree *subtree,
int indent)
{
int i;
i = 0;
while (i < indent)
{
_dbus_verbose (" ");
++i;
}
_dbus_verbose ("%s (%d children)\n",
subtree->name, subtree->n_subtrees);
i = 0;
while (i < subtree->n_subtrees)
{
spew_subtree_recurse (subtree->subtrees[i], indent + 2);
++i;
}
}
static void
spew_tree (DBusObjectTree *tree)
{
spew_subtree_recurse (tree->root, 0);
}
typedef struct
{
const char **path;
dbus_bool_t message_handled;
dbus_bool_t handler_unregistered;
} TreeTestData;
static void
test_unregister_function (DBusConnection *connection,
void *user_data)
{
TreeTestData *ttd = user_data;
ttd->handler_unregistered = TRUE;
}
static DBusHandlerResult
test_message_function (DBusConnection *connection,
DBusMessage *message,
void *user_data)
{
TreeTestData *ttd = user_data;
ttd->message_handled = TRUE;
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
static dbus_bool_t
do_register (DBusObjectTree *tree,
const char **path,
int i,
TreeTestData *tree_test_data)
{
DBusObjectPathVTable vtable = { test_unregister_function,
test_message_function, NULL };
tree_test_data[i].message_handled = FALSE;
tree_test_data[i].handler_unregistered = FALSE;
tree_test_data[i].path = path;
if (!_dbus_object_tree_register (tree, path,
&vtable,
&tree_test_data[i]))
return FALSE;
return TRUE;
}
static dbus_bool_t
do_test_dispatch (DBusObjectTree *tree,
const char **path,
int i,
TreeTestData *tree_test_data,
int n_test_data)
{
DBusMessage *message;
int j;
DBusHandlerResult result;
char *flat;
message = NULL;
flat = flatten_path (path);
if (flat == NULL)
goto oom;
message = dbus_message_new_method_call (NULL,
flat,
"org.freedesktop.TestInterface",
"Foo");
dbus_free (flat);
if (message == NULL)
goto oom;
j = 0;
while (j < n_test_data)
{
tree_test_data[j].message_handled = FALSE;
++j;
}
result = _dbus_object_tree_dispatch_and_unlock (tree, message);
if (result == DBUS_HANDLER_RESULT_NEED_MEMORY)
goto oom;
_dbus_assert (tree_test_data[i].message_handled);
j = 0;
while (j < n_test_data)
{
if (tree_test_data[j].message_handled)
_dbus_assert (path_contains (tree_test_data[j].path,
path));
else
_dbus_assert (!path_contains (tree_test_data[j].path,
path));
++j;
}
dbus_message_unref (message);
return TRUE;
oom:
if (message)
dbus_message_unref (message);
return FALSE;
}
static dbus_bool_t
object_tree_test_iteration (void *data)
{
const char *path1[] = { "foo", NULL };
const char *path2[] = { "foo", "bar", NULL };
const char *path3[] = { "foo", "bar", "baz", NULL };
const char *path4[] = { "foo", "bar", "boo", NULL };
const char *path5[] = { "blah", NULL };
const char *path6[] = { "blah", "boof", NULL };
const char *path7[] = { "blah", "boof", "this", "is", "really", "long", NULL };
const char *path8[] = { "childless", NULL };
DBusObjectTree *tree;
TreeTestData tree_test_data[8];
int i;
tree = NULL;
tree = _dbus_object_tree_new (NULL);
if (tree == NULL)
goto out;
if (!do_register (tree, path1, 0, tree_test_data))
goto out;
_dbus_assert (find_subtree (tree, path1, NULL));
_dbus_assert (!find_subtree (tree, path2, NULL));
_dbus_assert (!find_subtree (tree, path3, NULL));
_dbus_assert (!find_subtree (tree, path4, NULL));
_dbus_assert (!find_subtree (tree, path5, NULL));
_dbus_assert (!find_subtree (tree, path6, NULL));
_dbus_assert (!find_subtree (tree, path7, NULL));
_dbus_assert (!find_subtree (tree, path8, NULL));
_dbus_assert (find_handler (tree, path1));
_dbus_assert (find_handler (tree, path2));
_dbus_assert (find_handler (tree, path3));
_dbus_assert (find_handler (tree, path4));
_dbus_assert (find_handler (tree, path5) == tree->root);
_dbus_assert (find_handler (tree, path6) == tree->root);
_dbus_assert (find_handler (tree, path7) == tree->root);
_dbus_assert (find_handler (tree, path8) == tree->root);
if (!do_register (tree, path2, 1, tree_test_data))
goto out;
_dbus_assert (find_subtree (tree, path1, NULL));
_dbus_assert (find_subtree (tree, path2, NULL));
_dbus_assert (!find_subtree (tree, path3, NULL));
_dbus_assert (!find_subtree (tree, path4, NULL));
_dbus_assert (!find_subtree (tree, path5, NULL));
_dbus_assert (!find_subtree (tree, path6, NULL));
_dbus_assert (!find_subtree (tree, path7, NULL));
_dbus_assert (!find_subtree (tree, path8, NULL));
if (!do_register (tree, path3, 2, tree_test_data))
goto out;
_dbus_assert (find_subtree (tree, path1, NULL));
_dbus_assert (find_subtree (tree, path2, NULL));
_dbus_assert (find_subtree (tree, path3, NULL));
_dbus_assert (!find_subtree (tree, path4, NULL));
_dbus_assert (!find_subtree (tree, path5, NULL));
_dbus_assert (!find_subtree (tree, path6, NULL));
_dbus_assert (!find_subtree (tree, path7, NULL));
_dbus_assert (!find_subtree (tree, path8, NULL));
if (!do_register (tree, path4, 3, tree_test_data))
goto out;
_dbus_assert (find_subtree (tree, path1, NULL));
_dbus_assert (find_subtree (tree, path2, NULL));
_dbus_assert (find_subtree (tree, path3, NULL));
_dbus_assert (find_subtree (tree, path4, NULL));
_dbus_assert (!find_subtree (tree, path5, NULL));
_dbus_assert (!find_subtree (tree, path6, NULL));
_dbus_assert (!find_subtree (tree, path7, NULL));
_dbus_assert (!find_subtree (tree, path8, NULL));
if (!do_register (tree, path5, 4, tree_test_data))
goto out;
_dbus_assert (find_subtree (tree, path1, NULL));
_dbus_assert (find_subtree (tree, path2, NULL));
_dbus_assert (find_subtree (tree, path3, NULL));
_dbus_assert (find_subtree (tree, path4, NULL));
_dbus_assert (find_subtree (tree, path5, NULL));
_dbus_assert (!find_subtree (tree, path6, NULL));
_dbus_assert (!find_subtree (tree, path7, NULL));
_dbus_assert (!find_subtree (tree, path8, NULL));
_dbus_assert (find_handler (tree, path1) != tree->root);
_dbus_assert (find_handler (tree, path2) != tree->root);
_dbus_assert (find_handler (tree, path3) != tree->root);
_dbus_assert (find_handler (tree, path4) != tree->root);
_dbus_assert (find_handler (tree, path5) != tree->root);
_dbus_assert (find_handler (tree, path6) != tree->root);
_dbus_assert (find_handler (tree, path7) != tree->root);
_dbus_assert (find_handler (tree, path8) == tree->root);
if (!do_register (tree, path6, 5, tree_test_data))
goto out;
_dbus_assert (find_subtree (tree, path1, NULL));
_dbus_assert (find_subtree (tree, path2, NULL));
_dbus_assert (find_subtree (tree, path3, NULL));
_dbus_assert (find_subtree (tree, path4, NULL));
_dbus_assert (find_subtree (tree, path5, NULL));
_dbus_assert (find_subtree (tree, path6, NULL));
_dbus_assert (!find_subtree (tree, path7, NULL));
_dbus_assert (!find_subtree (tree, path8, NULL));
if (!do_register (tree, path7, 6, tree_test_data))
goto out;
_dbus_assert (find_subtree (tree, path1, NULL));
_dbus_assert (find_subtree (tree, path2, NULL));
_dbus_assert (find_subtree (tree, path3, NULL));
_dbus_assert (find_subtree (tree, path4, NULL));
_dbus_assert (find_subtree (tree, path5, NULL));
_dbus_assert (find_subtree (tree, path6, NULL));
_dbus_assert (find_subtree (tree, path7, NULL));
_dbus_assert (!find_subtree (tree, path8, NULL));
if (!do_register (tree, path8, 7, tree_test_data))
goto out;
_dbus_assert (find_subtree (tree, path1, NULL));
_dbus_assert (find_subtree (tree, path2, NULL));
_dbus_assert (find_subtree (tree, path3, NULL));
_dbus_assert (find_subtree (tree, path4, NULL));
_dbus_assert (find_subtree (tree, path5, NULL));
_dbus_assert (find_subtree (tree, path6, NULL));
_dbus_assert (find_subtree (tree, path7, NULL));
_dbus_assert (find_subtree (tree, path8, NULL));
_dbus_assert (find_handler (tree, path1) != tree->root);
_dbus_assert (find_handler (tree, path2) != tree->root);
_dbus_assert (find_handler (tree, path3) != tree->root);
_dbus_assert (find_handler (tree, path4) != tree->root);
_dbus_assert (find_handler (tree, path5) != tree->root);
_dbus_assert (find_handler (tree, path6) != tree->root);
_dbus_assert (find_handler (tree, path7) != tree->root);
_dbus_assert (find_handler (tree, path8) != tree->root);
/* Check that destroying tree calls unregister funcs */
_dbus_object_tree_unref (tree);
i = 0;
while (i < (int) _DBUS_N_ELEMENTS (tree_test_data))
{
_dbus_assert (tree_test_data[i].handler_unregistered);
_dbus_assert (!tree_test_data[i].message_handled);
++i;
}
/* Now start again and try the individual unregister function */
tree = _dbus_object_tree_new (NULL);
if (tree == NULL)
goto out;
if (!do_register (tree, path1, 0, tree_test_data))
goto out;
if (!do_register (tree, path2, 1, tree_test_data))
goto out;
if (!do_register (tree, path3, 2, tree_test_data))
goto out;
if (!do_register (tree, path4, 3, tree_test_data))
goto out;
if (!do_register (tree, path5, 4, tree_test_data))
goto out;
if (!do_register (tree, path6, 5, tree_test_data))
goto out;
if (!do_register (tree, path7, 6, tree_test_data))
goto out;
if (!do_register (tree, path8, 7, tree_test_data))
goto out;
_dbus_object_tree_unregister_and_unlock (tree, path1);
_dbus_assert (!find_subtree (tree, path1, NULL));
_dbus_assert (find_subtree (tree, path2, NULL));
_dbus_assert (find_subtree (tree, path3, NULL));
_dbus_assert (find_subtree (tree, path4, NULL));
_dbus_assert (find_subtree (tree, path5, NULL));
_dbus_assert (find_subtree (tree, path6, NULL));
_dbus_assert (find_subtree (tree, path7, NULL));
_dbus_assert (find_subtree (tree, path8, NULL));
_dbus_object_tree_unregister_and_unlock (tree, path2);
_dbus_assert (!find_subtree (tree, path1, NULL));
_dbus_assert (!find_subtree (tree, path2, NULL));
_dbus_assert (find_subtree (tree, path3, NULL));
_dbus_assert (find_subtree (tree, path4, NULL));
_dbus_assert (find_subtree (tree, path5, NULL));
_dbus_assert (find_subtree (tree, path6, NULL));
_dbus_assert (find_subtree (tree, path7, NULL));
_dbus_assert (find_subtree (tree, path8, NULL));
_dbus_object_tree_unregister_and_unlock (tree, path3);
_dbus_assert (!find_subtree (tree, path1, NULL));
_dbus_assert (!find_subtree (tree, path2, NULL));
_dbus_assert (!find_subtree (tree, path3, NULL));
_dbus_assert (find_subtree (tree, path4, NULL));
_dbus_assert (find_subtree (tree, path5, NULL));
_dbus_assert (find_subtree (tree, path6, NULL));
_dbus_assert (find_subtree (tree, path7, NULL));
_dbus_assert (find_subtree (tree, path8, NULL));
_dbus_object_tree_unregister_and_unlock (tree, path4);
_dbus_assert (!find_subtree (tree, path1, NULL));
_dbus_assert (!find_subtree (tree, path2, NULL));
_dbus_assert (!find_subtree (tree, path3, NULL));
_dbus_assert (!find_subtree (tree, path4, NULL));
_dbus_assert (find_subtree (tree, path5, NULL));
_dbus_assert (find_subtree (tree, path6, NULL));
_dbus_assert (find_subtree (tree, path7, NULL));
_dbus_assert (find_subtree (tree, path8, NULL));
_dbus_object_tree_unregister_and_unlock (tree, path5);
_dbus_assert (!find_subtree (tree, path1, NULL));
_dbus_assert (!find_subtree (tree, path2, NULL));
_dbus_assert (!find_subtree (tree, path3, NULL));
_dbus_assert (!find_subtree (tree, path4, NULL));
_dbus_assert (!find_subtree (tree, path5, NULL));
_dbus_assert (find_subtree (tree, path6, NULL));
_dbus_assert (find_subtree (tree, path7, NULL));
_dbus_assert (find_subtree (tree, path8, NULL));
_dbus_object_tree_unregister_and_unlock (tree, path6);
_dbus_assert (!find_subtree (tree, path1, NULL));
_dbus_assert (!find_subtree (tree, path2, NULL));
_dbus_assert (!find_subtree (tree, path3, NULL));
_dbus_assert (!find_subtree (tree, path4, NULL));
_dbus_assert (!find_subtree (tree, path5, NULL));
_dbus_assert (!find_subtree (tree, path6, NULL));
_dbus_assert (find_subtree (tree, path7, NULL));
_dbus_assert (find_subtree (tree, path8, NULL));
_dbus_object_tree_unregister_and_unlock (tree, path7);
_dbus_assert (!find_subtree (tree, path1, NULL));
_dbus_assert (!find_subtree (tree, path2, NULL));
_dbus_assert (!find_subtree (tree, path3, NULL));
_dbus_assert (!find_subtree (tree, path4, NULL));
_dbus_assert (!find_subtree (tree, path5, NULL));
_dbus_assert (!find_subtree (tree, path6, NULL));
_dbus_assert (!find_subtree (tree, path7, NULL));
_dbus_assert (find_subtree (tree, path8, NULL));
_dbus_object_tree_unregister_and_unlock (tree, path8);
_dbus_assert (!find_subtree (tree, path1, NULL));
_dbus_assert (!find_subtree (tree, path2, NULL));
_dbus_assert (!find_subtree (tree, path3, NULL));
_dbus_assert (!find_subtree (tree, path4, NULL));
_dbus_assert (!find_subtree (tree, path5, NULL));
_dbus_assert (!find_subtree (tree, path6, NULL));
_dbus_assert (!find_subtree (tree, path7, NULL));
_dbus_assert (!find_subtree (tree, path8, NULL));
i = 0;
while (i < (int) _DBUS_N_ELEMENTS (tree_test_data))
{
_dbus_assert (tree_test_data[i].handler_unregistered);
_dbus_assert (!tree_test_data[i].message_handled);
++i;
}
/* Register it all again, and test dispatch */
if (!do_register (tree, path1, 0, tree_test_data))
goto out;
if (!do_register (tree, path2, 1, tree_test_data))
goto out;
if (!do_register (tree, path3, 2, tree_test_data))
goto out;
if (!do_register (tree, path4, 3, tree_test_data))
goto out;
if (!do_register (tree, path5, 4, tree_test_data))
goto out;
if (!do_register (tree, path6, 5, tree_test_data))
goto out;
if (!do_register (tree, path7, 6, tree_test_data))
goto out;
if (!do_register (tree, path8, 7, tree_test_data))
goto out;
#if 0
spew_tree (tree);
#endif
if (!do_test_dispatch (tree, path1, 0, tree_test_data, _DBUS_N_ELEMENTS (tree_test_data)))
goto out;
if (!do_test_dispatch (tree, path2, 1, tree_test_data, _DBUS_N_ELEMENTS (tree_test_data)))
goto out;
if (!do_test_dispatch (tree, path3, 2, tree_test_data, _DBUS_N_ELEMENTS (tree_test_data)))
goto out;
if (!do_test_dispatch (tree, path4, 3, tree_test_data, _DBUS_N_ELEMENTS (tree_test_data)))
goto out;
if (!do_test_dispatch (tree, path5, 4, tree_test_data, _DBUS_N_ELEMENTS (tree_test_data)))
goto out;
if (!do_test_dispatch (tree, path6, 5, tree_test_data, _DBUS_N_ELEMENTS (tree_test_data)))
goto out;
if (!do_test_dispatch (tree, path7, 6, tree_test_data, _DBUS_N_ELEMENTS (tree_test_data)))
goto out;
if (!do_test_dispatch (tree, path8, 7, tree_test_data, _DBUS_N_ELEMENTS (tree_test_data)))
goto out;
out:
if (tree)
_dbus_object_tree_unref (tree);
return TRUE;
}
/**
* @ingroup DBusObjectTree
* Unit test for DBusObjectTree
* @returns #TRUE on success.
*/
dbus_bool_t
_dbus_object_tree_test (void)
{
_dbus_test_oom_handling ("object tree",
object_tree_test_iteration,
NULL);
return TRUE;
}
#endif /* DBUS_BUILD_TESTS */
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