--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ofdbus/dbus/bus/activation.c Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,1989 @@
+/* -*- mode: C; c-file-style: "gnu" -*- */
+/* activation.c Activation of services
+ *
+ * Copyright (C) 2003 CodeFactory AB
+ * Copyright (C) 2003 Red Hat, Inc.
+ * Copyright (C) 2004 Imendio HB
+ * Portion Copyright © 2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
+ *
+ * Licensed under the Academic Free License version 2.1
+ *
+ * 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 "activation.h"
+#include "desktop-file.h"
+#include "services.h"
+#include "test.h"
+#include "utils.h"
+
+#ifndef __SYMBIAN32__
+#include <dbus/dbus-internals.h>
+#include <dbus/dbus-hash.h>
+#include <dbus/dbus-list.h>
+#include <dbus/dbus-shell.h>
+#include <dbus/dbus-spawn.h>
+#include <dbus/dbus-timeout.h>
+#include <dbus/dbus-sysdeps.h>
+#else
+#include "dbus-internals.h"
+#include "dbus-hash.h"
+#include "dbus-list.h"
+#include "dbus-shell.h"
+#include "dbus-spawn.h"
+#include "dbus-timeout.h"
+#include "dbus-sysdeps.h"
+#endif //__SYMBIAN32__
+#include <dirent.h>
+#include <errno.h>
+
+#define DBUS_SERVICE_SECTION "D-BUS Service"
+#define DBUS_SERVICE_NAME "Name"
+#define DBUS_SERVICE_EXEC "Exec"
+
+struct BusActivation
+{
+ int refcount;
+ DBusHashTable *entries;
+ DBusHashTable *pending_activations;
+ char *server_address;
+ BusContext *context;
+ int n_pending_activations; /**< This is in fact the number of BusPendingActivationEntry,
+ * i.e. number of pending activation requests, not pending
+ * activations per se
+ */
+ DBusHashTable *directories;
+};
+
+typedef struct
+{
+ int refcount;
+ char *dir_c;
+ DBusHashTable *entries;
+} BusServiceDirectory;
+
+typedef struct
+{
+ int refcount;
+ char *name;
+ char *exec;
+ unsigned long mtime;
+ BusServiceDirectory *s_dir;
+ char *filename;
+} BusActivationEntry;
+
+typedef struct BusPendingActivationEntry BusPendingActivationEntry;
+
+struct BusPendingActivationEntry
+{
+ DBusMessage *activation_message;
+ DBusConnection *connection;
+
+ dbus_bool_t auto_activation;
+};
+
+typedef struct
+{
+ int refcount;
+ BusActivation *activation;
+ char *service_name;
+ char *exec;
+ DBusList *entries;
+ int n_entries;
+ DBusBabysitter *babysitter;
+ DBusTimeout *timeout;
+ unsigned int timeout_added : 1;
+} BusPendingActivation;
+
+#if 0
+static BusServiceDirectory *
+bus_service_directory_ref (BusServiceDirectory *dir)
+{
+ _dbus_assert (dir->refcount);
+
+ dir->refcount++;
+
+ return dir;
+}
+#endif
+
+static void
+bus_service_directory_unref (BusServiceDirectory *dir)
+{
+ if (dir == NULL)
+ return;
+
+ _dbus_assert (dir->refcount > 0);
+ dir->refcount--;
+
+ if (dir->refcount > 0)
+ return;
+
+ if (dir->entries)
+ _dbus_hash_table_unref (dir->entries);
+
+ dbus_free (dir->dir_c);
+ dbus_free (dir);
+}
+
+static void
+bus_pending_activation_entry_free (BusPendingActivationEntry *entry)
+{
+ if (entry->activation_message)
+ dbus_message_unref (entry->activation_message);
+
+ if (entry->connection)
+ dbus_connection_unref (entry->connection);
+
+ dbus_free (entry);
+}
+
+static void
+handle_timeout_callback (DBusTimeout *timeout,
+ void *data)
+{
+ BusPendingActivation *pending_activation = data;
+
+ while (!dbus_timeout_handle (pending_activation->timeout))
+ _dbus_wait_for_memory ();
+}
+
+static BusPendingActivation *
+bus_pending_activation_ref (BusPendingActivation *pending_activation)
+{
+ _dbus_assert (pending_activation->refcount > 0);
+ pending_activation->refcount += 1;
+
+ return pending_activation;
+}
+
+static void
+bus_pending_activation_unref (BusPendingActivation *pending_activation)
+{
+ DBusList *link;
+
+ if (pending_activation == NULL) /* hash table requires this */
+ return;
+
+ _dbus_assert (pending_activation->refcount > 0);
+ pending_activation->refcount -= 1;
+
+ if (pending_activation->refcount > 0)
+ return;
+
+ if (pending_activation->timeout_added)
+ {
+ _dbus_loop_remove_timeout (bus_context_get_loop (pending_activation->activation->context),
+ pending_activation->timeout,
+ handle_timeout_callback, pending_activation);
+ pending_activation->timeout_added = FALSE;
+ }
+
+ if (pending_activation->timeout)
+ _dbus_timeout_unref (pending_activation->timeout);
+
+ if (pending_activation->babysitter)
+ {
+ if (!_dbus_babysitter_set_watch_functions (pending_activation->babysitter,
+ NULL, NULL, NULL,
+ pending_activation->babysitter,
+ NULL))
+ _dbus_assert_not_reached ("setting watch functions to NULL failed");
+
+ _dbus_babysitter_unref (pending_activation->babysitter);
+ }
+
+ dbus_free (pending_activation->service_name);
+ dbus_free (pending_activation->exec);
+
+ link = _dbus_list_get_first_link (&pending_activation->entries);
+
+ while (link != NULL)
+ {
+ BusPendingActivationEntry *entry = link->data;
+
+ bus_pending_activation_entry_free (entry);
+
+ link = _dbus_list_get_next_link (&pending_activation->entries, link);
+ }
+ _dbus_list_clear (&pending_activation->entries);
+
+ pending_activation->activation->n_pending_activations -=
+ pending_activation->n_entries;
+
+ _dbus_assert (pending_activation->activation->n_pending_activations >= 0);
+
+ dbus_free (pending_activation);
+}
+
+static BusActivationEntry *
+bus_activation_entry_ref (BusActivationEntry *entry)
+{
+ _dbus_assert (entry->refcount > 0);
+ entry->refcount++;
+
+ return entry;
+}
+
+static void
+bus_activation_entry_unref (BusActivationEntry *entry)
+{
+ if (entry == NULL) /* hash table requires this */
+ return;
+
+ _dbus_assert (entry->refcount > 0);
+ entry->refcount--;
+
+ if (entry->refcount > 0)
+ return;
+
+ dbus_free (entry->name);
+ dbus_free (entry->exec);
+ dbus_free (entry->filename);
+
+ dbus_free (entry);
+}
+
+static dbus_bool_t
+update_desktop_file_entry (BusActivation *activation,
+ BusServiceDirectory *s_dir,
+ DBusString *filename,
+ BusDesktopFile *desktop_file,
+ DBusError *error)
+{
+ char *name, *exec;
+ BusActivationEntry *entry;
+ DBusStat stat_buf;
+ DBusString file_path;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ name = NULL;
+ exec = NULL;
+ entry = NULL;
+
+ if (!_dbus_string_init (&file_path))
+ {
+ BUS_SET_OOM (error);
+ return FALSE;
+ }
+
+ if (!_dbus_string_append (&file_path, s_dir->dir_c) ||
+ !_dbus_concat_dir_and_file (&file_path, filename))
+ {
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ if (!_dbus_stat (&file_path, &stat_buf, NULL))
+ {
+ dbus_set_error (error, DBUS_ERROR_FAILED,
+ "Can't stat the service file\n");
+ goto failed;
+ }
+
+ if (!bus_desktop_file_get_string (desktop_file,
+ DBUS_SERVICE_SECTION,
+ DBUS_SERVICE_NAME,
+ &name,
+ error))
+ goto failed;
+
+ if (!bus_desktop_file_get_string (desktop_file,
+ DBUS_SERVICE_SECTION,
+ DBUS_SERVICE_EXEC,
+ &exec,
+ error))
+ goto failed;
+
+ entry = _dbus_hash_table_lookup_string (s_dir->entries,
+ _dbus_string_get_const_data (filename));
+ if (entry == NULL) /* New file */
+ {
+ /* FIXME we need a better-defined algorithm for which service file to
+ * pick than "whichever one is first in the directory listing"
+ */
+ if (_dbus_hash_table_lookup_string (activation->entries, name))
+ {
+ dbus_set_error (error, DBUS_ERROR_FAILED,
+ "Service %s already exists in activation entry list\n", name);
+ goto failed;
+ }
+
+ entry = dbus_new0 (BusActivationEntry, 1);
+ if (entry == NULL)
+ {
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ entry->name = name;
+ entry->exec = exec;
+ entry->refcount = 1;
+
+ entry->s_dir = s_dir;
+ entry->filename = _dbus_strdup (_dbus_string_get_const_data (filename));
+ if (!entry->filename)
+ {
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ if (!_dbus_hash_table_insert_string (activation->entries, entry->name, bus_activation_entry_ref (entry)))
+ {
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ if (!_dbus_hash_table_insert_string (s_dir->entries, entry->filename, bus_activation_entry_ref (entry)))
+ {
+ /* Revert the insertion in the entries table */
+ _dbus_hash_table_remove_string (activation->entries, entry->name);
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ _dbus_verbose ("Added \"%s\" to list of services\n", entry->name);
+ }
+ else /* Just update the entry */
+ {
+ bus_activation_entry_ref (entry);
+ _dbus_hash_table_remove_string (activation->entries, entry->name);
+
+ if (_dbus_hash_table_lookup_string (activation->entries, name))
+ {
+ _dbus_verbose ("The new service name \"%s\" of service file \"%s\" already in cache, ignoring\n",
+ name, _dbus_string_get_const_data (&file_path));
+ goto failed;
+ }
+
+ dbus_free (entry->name);
+ dbus_free (entry->exec);
+ entry->name = name;
+ entry->exec = exec;
+ if (!_dbus_hash_table_insert_string (activation->entries,
+ entry->name, bus_activation_entry_ref(entry)))
+ {
+ BUS_SET_OOM (error);
+ /* Also remove path to entries hash since we want this in sync with
+ * the entries hash table */
+ _dbus_hash_table_remove_string (entry->s_dir->entries,
+ entry->filename);
+ bus_activation_entry_unref (entry);
+ return FALSE;
+ }
+ }
+
+ entry->mtime = stat_buf.mtime;
+
+ _dbus_string_free (&file_path);
+ bus_activation_entry_unref (entry);
+
+ return TRUE;
+
+failed:
+ dbus_free (name);
+ dbus_free (exec);
+ _dbus_string_free (&file_path);
+
+ if (entry)
+ bus_activation_entry_unref (entry);
+
+ return FALSE;
+}
+
+static dbus_bool_t
+check_service_file (BusActivation *activation,
+ BusActivationEntry *entry,
+ BusActivationEntry **updated_entry,
+ DBusError *error)
+{
+ DBusStat stat_buf;
+ dbus_bool_t retval;
+ BusActivationEntry *tmp_entry;
+ DBusString file_path;
+ DBusString filename;
+
+ retval = TRUE;
+ tmp_entry = entry;
+
+ _dbus_string_init_const (&filename, entry->filename);
+
+ if (!_dbus_string_init (&file_path))
+ {
+ BUS_SET_OOM (error);
+ return FALSE;
+ }
+
+ if (!_dbus_string_append (&file_path, entry->s_dir->dir_c) ||
+ !_dbus_concat_dir_and_file (&file_path, &filename))
+ {
+ BUS_SET_OOM (error);
+ retval = FALSE;
+ goto out;
+ }
+
+ if (!_dbus_stat (&file_path, &stat_buf, NULL))
+ {
+ _dbus_verbose ("****** Can't stat file \"%s\", removing from cache\n",
+ _dbus_string_get_const_data (&file_path));
+
+ _dbus_hash_table_remove_string (activation->entries, entry->name);
+ _dbus_hash_table_remove_string (entry->s_dir->entries, entry->filename);
+
+ tmp_entry = NULL;
+ retval = TRUE;
+ goto out;
+ }
+ else
+ {
+ if (stat_buf.mtime > entry->mtime)
+ {
+ BusDesktopFile *desktop_file;
+ DBusError tmp_error;
+
+ dbus_error_init (&tmp_error);
+
+ desktop_file = bus_desktop_file_load (&file_path, &tmp_error);
+ if (desktop_file == NULL)
+ {
+ _dbus_verbose ("Could not load %s: %s\n",
+ _dbus_string_get_const_data (&file_path),
+ tmp_error.message);
+ if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
+ {
+ dbus_move_error (&tmp_error, error);
+ retval = FALSE;
+ goto out;
+ }
+ dbus_error_free (&tmp_error);
+ retval = TRUE;
+ goto out;
+ }
+
+ /* @todo We can return OOM or a DBUS_ERROR_FAILED error
+ * Handle these both better
+ */
+ if (!update_desktop_file_entry (activation, entry->s_dir, &filename, desktop_file, &tmp_error))
+ {
+ bus_desktop_file_free (desktop_file);
+ if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
+ {
+ dbus_move_error (&tmp_error, error);
+ retval = FALSE;
+ goto out;
+ }
+ dbus_error_free (&tmp_error);
+ retval = TRUE;
+ goto out;
+ }
+
+ bus_desktop_file_free (desktop_file);
+ retval = TRUE;
+ }
+ }
+
+out:
+ _dbus_string_free (&file_path);
+
+ if (updated_entry != NULL)
+ *updated_entry = tmp_entry;
+ return retval;
+}
+
+
+/* warning: this doesn't fully "undo" itself on failure, i.e. doesn't strip
+ * hash entries it already added.
+ */
+static dbus_bool_t
+update_directory (BusActivation *activation,
+ BusServiceDirectory *s_dir,
+ DBusError *error)
+{
+ DBusDirIter *iter;
+ DBusString dir, filename;
+ BusDesktopFile *desktop_file;
+ DBusError tmp_error;
+ dbus_bool_t retval;
+ BusActivationEntry *entry;
+ DBusString full_path;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ iter = NULL;
+ desktop_file = NULL;
+
+ _dbus_string_init_const (&dir, s_dir->dir_c);
+
+ if (!_dbus_string_init (&filename))
+ {
+ BUS_SET_OOM (error);
+ return FALSE;
+ }
+
+ if (!_dbus_string_init (&full_path))
+ {
+ BUS_SET_OOM (error);
+ _dbus_string_free (&filename);
+ return FALSE;
+ }
+
+ retval = FALSE;
+
+ /* from this point it's safe to "goto out" */
+
+ iter = _dbus_directory_open (&dir, error);
+ if (iter == NULL)
+ {
+ _dbus_verbose ("Failed to open directory %s: %s\n",
+ s_dir->dir_c,
+ error ? error->message : "unknown");
+ goto out;
+ }
+
+ /* Now read the files */
+ dbus_error_init (&tmp_error);
+ while (_dbus_directory_get_next_file (iter, &filename, &tmp_error))
+ {
+ _dbus_assert (!dbus_error_is_set (&tmp_error));
+
+ _dbus_string_set_length (&full_path, 0);
+
+ if (!_dbus_string_ends_with_c_str (&filename, ".service"))
+ {
+ _dbus_verbose ("Skipping non-.service file %s\n",
+ _dbus_string_get_const_data (&filename));
+ continue;
+ }
+
+ entry = _dbus_hash_table_lookup_string (s_dir->entries, _dbus_string_get_const_data (&filename));
+ if (entry) /* Already has this service file in the cache */
+ {
+ if (!check_service_file (activation, entry, NULL, error))
+ goto out;
+
+ continue;
+ }
+
+ if (!_dbus_string_append (&full_path, s_dir->dir_c) ||
+ !_dbus_concat_dir_and_file (&full_path, &filename))
+ {
+ BUS_SET_OOM (error);
+ goto out;
+ }
+
+ /* New file */
+ desktop_file = bus_desktop_file_load (&full_path, &tmp_error);
+ if (desktop_file == NULL)
+ {
+ _dbus_verbose ("Could not load %s: %s\n",
+ _dbus_string_get_const_data (&full_path),
+ tmp_error.message);
+
+ if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
+ {
+ dbus_move_error (&tmp_error, error);
+ goto out;
+ }
+
+ dbus_error_free (&tmp_error);
+ continue;
+ }
+
+ /* @todo We can return OOM or a DBUS_ERROR_FAILED error
+ * Handle these both better
+ */
+ if (!update_desktop_file_entry (activation, s_dir, &filename, desktop_file, &tmp_error))
+ {
+ bus_desktop_file_free (desktop_file);
+ desktop_file = NULL;
+
+ _dbus_verbose ("Could not add %s to activation entry list: %s\n",
+ _dbus_string_get_const_data (&full_path), tmp_error.message);
+
+ if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
+ {
+ dbus_move_error (&tmp_error, error);
+ goto out;
+ }
+
+ dbus_error_free (&tmp_error);
+ continue;
+ }
+ else
+ {
+ bus_desktop_file_free (desktop_file);
+ desktop_file = NULL;
+ continue;
+ }
+ }
+
+ if (dbus_error_is_set (&tmp_error))
+ {
+ dbus_move_error (&tmp_error, error);
+ goto out;
+ }
+
+ retval = TRUE;
+
+ out:
+ if (!retval)
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ else
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ if (iter != NULL)
+ _dbus_directory_close (iter);
+ _dbus_string_free (&filename);
+ _dbus_string_free (&full_path);
+
+ return retval;
+}
+
+BusActivation*
+bus_activation_new (BusContext *context,
+ const DBusString *address,
+ DBusList **directories,
+ DBusError *error)
+{
+ BusActivation *activation;
+ DBusList *link;
+ char *dir;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ activation = dbus_new0 (BusActivation, 1);
+ if (activation == NULL)
+ {
+ BUS_SET_OOM (error);
+ return NULL;
+ }
+
+ activation->refcount = 1;
+ activation->context = context;
+ activation->n_pending_activations = 0;
+
+ if (!_dbus_string_copy_data (address, &activation->server_address))
+ {
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ activation->entries = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
+ (DBusFreeFunction)bus_activation_entry_unref);
+ if (activation->entries == NULL)
+ {
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ activation->pending_activations = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
+ (DBusFreeFunction)bus_pending_activation_unref);
+
+ if (activation->pending_activations == NULL)
+ {
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ activation->directories = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
+ (DBusFreeFunction)bus_service_directory_unref);
+
+ if (activation->directories == NULL)
+ {
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ /* Load service files */
+ link = _dbus_list_get_first_link (directories);
+ while (link != NULL)
+ {
+ BusServiceDirectory *s_dir;
+
+ dir = _dbus_strdup ((const char *) link->data);
+ if (!dir)
+ {
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ s_dir = dbus_new0 (BusServiceDirectory, 1);
+ if (!s_dir)
+ {
+ dbus_free (dir);
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ s_dir->refcount = 1;
+ s_dir->dir_c = dir;
+
+ s_dir->entries = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
+ (DBusFreeFunction)bus_activation_entry_unref);
+
+ if (!s_dir->entries)
+ {
+ bus_service_directory_unref (s_dir);
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ if (!_dbus_hash_table_insert_string (activation->directories, s_dir->dir_c, s_dir))
+ {
+ bus_service_directory_unref (s_dir);
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ /* only fail on OOM, it is ok if we can't read the directory */
+ if (!update_directory (activation, s_dir, error))
+ {
+ if (dbus_error_has_name (error, DBUS_ERROR_NO_MEMORY))
+ goto failed;
+ else
+ dbus_error_free (error);
+ }
+
+ link = _dbus_list_get_next_link (directories, link);
+ }
+
+ return activation;
+
+ failed:
+ bus_activation_unref (activation);
+ return NULL;
+}
+
+BusActivation *
+bus_activation_ref (BusActivation *activation)
+{
+ _dbus_assert (activation->refcount > 0);
+
+ activation->refcount += 1;
+
+ return activation;
+}
+
+void
+bus_activation_unref (BusActivation *activation)
+{
+ _dbus_assert (activation->refcount > 0);
+
+ activation->refcount -= 1;
+
+ if (activation->refcount > 0)
+ return;
+
+ dbus_free (activation->server_address);
+ if (activation->entries)
+ _dbus_hash_table_unref (activation->entries);
+ if (activation->pending_activations)
+ _dbus_hash_table_unref (activation->pending_activations);
+ if (activation->directories)
+ _dbus_hash_table_unref (activation->directories);
+
+ dbus_free (activation);
+}
+
+static void
+child_setup (void *data)
+{
+ BusActivation *activation = data;
+ const char *type;
+
+ /* If no memory, we simply have the child exit, so it won't try
+ * to connect to the wrong thing.
+ */
+ if (!_dbus_setenv ("DBUS_STARTER_ADDRESS", activation->server_address))
+ _dbus_exit (1);
+
+ type = bus_context_get_type (activation->context);
+ if (type != NULL)
+ {
+ if (!_dbus_setenv ("DBUS_STARTER_BUS_TYPE", type))
+ _dbus_exit (1);
+
+ if (strcmp (type, "session") == 0)
+ {
+ if (!_dbus_setenv ("DBUS_SESSION_BUS_ADDRESS",
+ activation->server_address))
+ _dbus_exit (1);
+ }
+ else if (strcmp (type, "system") == 0)
+ {
+ if (!_dbus_setenv ("DBUS_SYSTEM_BUS_ADDRESS",
+ activation->server_address))
+ _dbus_exit (1);
+ }
+ }
+}
+
+typedef struct
+{
+ BusPendingActivation *pending_activation;
+ DBusPreallocatedHash *hash_entry;
+} RestorePendingData;
+
+static void
+restore_pending (void *data)
+{
+ RestorePendingData *d = data;
+
+ _dbus_assert (d->pending_activation != NULL);
+ _dbus_assert (d->hash_entry != NULL);
+
+ _dbus_verbose ("Restoring pending activation for service %s, has timeout = %d\n",
+ d->pending_activation->service_name,
+ d->pending_activation->timeout_added);
+
+ _dbus_hash_table_insert_string_preallocated (d->pending_activation->activation->pending_activations,
+ d->hash_entry,
+ d->pending_activation->service_name, d->pending_activation);
+
+ bus_pending_activation_ref (d->pending_activation);
+
+ d->hash_entry = NULL;
+}
+
+static void
+free_pending_restore_data (void *data)
+{
+ RestorePendingData *d = data;
+
+ if (d->hash_entry)
+ _dbus_hash_table_free_preallocated_entry (d->pending_activation->activation->pending_activations,
+ d->hash_entry);
+
+ bus_pending_activation_unref (d->pending_activation);
+
+ dbus_free (d);
+}
+
+static dbus_bool_t
+add_restore_pending_to_transaction (BusTransaction *transaction,
+ BusPendingActivation *pending_activation)
+{
+ RestorePendingData *d;
+
+ d = dbus_new (RestorePendingData, 1);
+ if (d == NULL)
+ return FALSE;
+
+ d->pending_activation = pending_activation;
+ d->hash_entry = _dbus_hash_table_preallocate_entry (d->pending_activation->activation->pending_activations);
+
+ bus_pending_activation_ref (d->pending_activation);
+
+ if (d->hash_entry == NULL ||
+ !bus_transaction_add_cancel_hook (transaction, restore_pending, d,
+ free_pending_restore_data))
+ {
+ free_pending_restore_data (d);
+ return FALSE;
+ }
+
+ _dbus_verbose ("Saved pending activation to be restored if the transaction fails\n");
+
+ return TRUE;
+}
+
+dbus_bool_t
+bus_activation_service_created (BusActivation *activation,
+ const char *service_name,
+ BusTransaction *transaction,
+ DBusError *error)
+{
+ BusPendingActivation *pending_activation;
+ DBusMessage *message;
+ DBusList *link;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ /* Check if it's a pending activation */
+ pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations, service_name);
+
+ if (!pending_activation)
+ return TRUE;
+
+ link = _dbus_list_get_first_link (&pending_activation->entries);
+ while (link != NULL)
+ {
+ BusPendingActivationEntry *entry = link->data;
+ DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
+
+ if (dbus_connection_get_is_connected (entry->connection))
+ {
+ /* Only send activation replies to regular activation requests. */
+ if (!entry->auto_activation)
+ {
+ dbus_uint32_t result;
+
+ message = dbus_message_new_method_return (entry->activation_message);
+ if (!message)
+ {
+ BUS_SET_OOM (error);
+ goto error;
+ }
+
+ result = DBUS_START_REPLY_SUCCESS;
+
+ if (!dbus_message_append_args (message,
+ DBUS_TYPE_UINT32, &result,
+ DBUS_TYPE_INVALID))
+ {
+ dbus_message_unref (message);
+ BUS_SET_OOM (error);
+ goto error;
+ }
+
+ if (!bus_transaction_send_from_driver (transaction, entry->connection, message))
+ {
+ dbus_message_unref (message);
+ BUS_SET_OOM (error);
+ goto error;
+ }
+
+ dbus_message_unref (message);
+ }
+ }
+
+ link = next;
+ }
+
+ return TRUE;
+
+ error:
+ return FALSE;
+}
+
+dbus_bool_t
+bus_activation_send_pending_auto_activation_messages (BusActivation *activation,
+ BusService *service,
+ BusTransaction *transaction,
+ DBusError *error)
+{
+ BusPendingActivation *pending_activation;
+ DBusList *link;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ /* Check if it's a pending activation */
+ pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations,
+ bus_service_get_name (service));
+
+ if (!pending_activation)
+ return TRUE;
+
+ link = _dbus_list_get_first_link (&pending_activation->entries);
+ while (link != NULL)
+ {
+ BusPendingActivationEntry *entry = link->data;
+ DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
+
+ if (entry->auto_activation && dbus_connection_get_is_connected (entry->connection))
+ {
+ DBusConnection *addressed_recipient;
+
+ addressed_recipient = bus_service_get_primary_owners_connection (service);
+
+ /* Check the security policy, which has the side-effect of adding an
+ * expected pending reply.
+ */
+ if (!bus_context_check_security_policy (activation->context, transaction,
+ entry->connection,
+ addressed_recipient,
+ addressed_recipient,
+ entry->activation_message, error))
+ goto error;
+
+ if (!bus_transaction_send (transaction, addressed_recipient, entry->activation_message))
+ {
+ BUS_SET_OOM (error);
+ goto error;
+ }
+ }
+
+ link = next;
+ }
+
+ if (!add_restore_pending_to_transaction (transaction, pending_activation))
+ {
+ _dbus_verbose ("Could not add cancel hook to transaction to revert removing pending activation\n");
+ BUS_SET_OOM (error);
+ goto error;
+ }
+
+ _dbus_hash_table_remove_string (activation->pending_activations, bus_service_get_name (service));
+
+ return TRUE;
+
+ error:
+ return FALSE;
+}
+
+/**
+ * FIXME @todo the error messages here would ideally be preallocated
+ * so we don't need to allocate memory to send them.
+ * Using the usual tactic, prealloc an OOM message, then
+ * if we can't alloc the real error send the OOM error instead.
+ */
+static dbus_bool_t
+try_send_activation_failure (BusPendingActivation *pending_activation,
+ const DBusError *how)
+{
+ BusActivation *activation;
+ DBusList *link;
+ BusTransaction *transaction;
+
+ activation = pending_activation->activation;
+
+ transaction = bus_transaction_new (activation->context);
+ if (transaction == NULL)
+ return FALSE;
+
+ link = _dbus_list_get_first_link (&pending_activation->entries);
+ while (link != NULL)
+ {
+ BusPendingActivationEntry *entry = link->data;
+ DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
+
+ if (dbus_connection_get_is_connected (entry->connection))
+ {
+ if (!bus_transaction_send_error_reply (transaction,
+ entry->connection,
+ how,
+ entry->activation_message))
+ goto error;
+ }
+
+ link = next;
+ }
+
+ bus_transaction_execute_and_free (transaction);
+
+ return TRUE;
+
+ error:
+ if (transaction)
+ bus_transaction_cancel_and_free (transaction);
+ return FALSE;
+}
+
+/**
+ * Free the pending activation and send an error message to all the
+ * connections that were waiting for it.
+ */
+static void
+pending_activation_failed (BusPendingActivation *pending_activation,
+ const DBusError *how)
+{
+ /* FIXME use preallocated OOM messages instead of bus_wait_for_memory() */
+ while (!try_send_activation_failure (pending_activation, how))
+ _dbus_wait_for_memory ();
+
+ /* Destroy this pending activation */
+ _dbus_hash_table_remove_string (pending_activation->activation->pending_activations,
+ pending_activation->service_name);
+}
+
+static dbus_bool_t
+babysitter_watch_callback (DBusWatch *watch,
+ unsigned int condition,
+ void *data)
+{
+ BusPendingActivation *pending_activation = data;
+ dbus_bool_t retval;
+ DBusBabysitter *babysitter;
+
+ babysitter = pending_activation->babysitter;
+
+ _dbus_babysitter_ref (babysitter);
+
+ retval = dbus_watch_handle (watch, condition);
+
+ /* FIXME this is broken in the same way that
+ * connection watches used to be; there should be
+ * a separate callback for status change, instead
+ * of doing "if we handled a watch status might
+ * have changed"
+ *
+ * Fixing this lets us move dbus_watch_handle
+ * calls into dbus-mainloop.c
+ */
+
+ if (_dbus_babysitter_get_child_exited (babysitter))
+ {
+ DBusError error;
+ DBusHashIter iter;
+
+ dbus_error_init (&error);
+ _dbus_babysitter_set_child_exit_error (babysitter, &error);
+
+ /* Destroy all pending activations with the same exec */
+ _dbus_hash_iter_init (pending_activation->activation->pending_activations,
+ &iter);
+ while (_dbus_hash_iter_next (&iter))
+ {
+ BusPendingActivation *p = _dbus_hash_iter_get_value (&iter);
+
+ if (p != pending_activation && strcmp (p->exec, pending_activation->exec) == 0)
+ pending_activation_failed (p, &error);
+ }
+
+ /* Destroys the pending activation */
+ pending_activation_failed (pending_activation, &error);
+
+ dbus_error_free (&error);
+ }
+
+ _dbus_babysitter_unref (babysitter);
+
+ return retval;
+}
+
+static dbus_bool_t
+add_babysitter_watch (DBusWatch *watch,
+ void *data)
+{
+ BusPendingActivation *pending_activation = data;
+
+ return _dbus_loop_add_watch (bus_context_get_loop (pending_activation->activation->context),
+ watch, babysitter_watch_callback, pending_activation,
+ NULL);
+}
+
+static void
+remove_babysitter_watch (DBusWatch *watch,
+ void *data)
+{
+ BusPendingActivation *pending_activation = data;
+
+ _dbus_loop_remove_watch (bus_context_get_loop (pending_activation->activation->context),
+ watch, babysitter_watch_callback, pending_activation);
+}
+
+static dbus_bool_t
+pending_activation_timed_out (void *data)
+{
+ BusPendingActivation *pending_activation = data;
+ DBusError error;
+
+ /* Kill the spawned process, since it sucks
+ * (not sure this is what we want to do, but
+ * may as well try it for now)
+ */
+ if (pending_activation->babysitter)
+ _dbus_babysitter_kill_child (pending_activation->babysitter);
+
+ dbus_error_init (&error);
+
+ dbus_set_error (&error, DBUS_ERROR_TIMED_OUT,
+ "Activation of %s timed out",
+ pending_activation->service_name);
+
+ pending_activation_failed (pending_activation, &error);
+
+ dbus_error_free (&error);
+
+ return TRUE;
+}
+
+static void
+cancel_pending (void *data)
+{
+ BusPendingActivation *pending_activation = data;
+
+ _dbus_verbose ("Canceling pending activation of %s\n",
+ pending_activation->service_name);
+
+ if (pending_activation->babysitter)
+ _dbus_babysitter_kill_child (pending_activation->babysitter);
+
+ _dbus_hash_table_remove_string (pending_activation->activation->pending_activations,
+ pending_activation->service_name);
+}
+
+static void
+free_pending_cancel_data (void *data)
+{
+ BusPendingActivation *pending_activation = data;
+
+ bus_pending_activation_unref (pending_activation);
+}
+
+static dbus_bool_t
+add_cancel_pending_to_transaction (BusTransaction *transaction,
+ BusPendingActivation *pending_activation)
+{
+ if (!bus_transaction_add_cancel_hook (transaction, cancel_pending,
+ pending_activation,
+ free_pending_cancel_data))
+ return FALSE;
+
+ bus_pending_activation_ref (pending_activation);
+
+ _dbus_verbose ("Saved pending activation to be canceled if the transaction fails\n");
+
+ return TRUE;
+}
+
+static dbus_bool_t
+update_service_cache (BusActivation *activation, DBusError *error)
+{
+ DBusHashIter iter;
+
+ _dbus_hash_iter_init (activation->directories, &iter);
+ while (_dbus_hash_iter_next (&iter))
+ {
+ DBusError tmp_error;
+ BusServiceDirectory *s_dir;
+
+ s_dir = _dbus_hash_iter_get_value (&iter);
+
+ dbus_error_init (&tmp_error);
+ if (!update_directory (activation, s_dir, &tmp_error))
+ {
+ if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
+ {
+ dbus_move_error (&tmp_error, error);
+ return FALSE;
+ }
+
+ dbus_error_free (&tmp_error);
+ continue;
+ }
+ }
+
+ return TRUE;
+}
+
+static BusActivationEntry *
+activation_find_entry (BusActivation *activation,
+ const char *service_name,
+ DBusError *error)
+{
+ BusActivationEntry *entry;
+
+ entry = _dbus_hash_table_lookup_string (activation->entries, service_name);
+ if (!entry)
+ {
+ if (!update_service_cache (activation, error))
+ return NULL;
+
+ entry = _dbus_hash_table_lookup_string (activation->entries,
+ service_name);
+ }
+ else
+ {
+ BusActivationEntry *updated_entry;
+
+ if (!check_service_file (activation, entry, &updated_entry, error))
+ return NULL;
+
+ entry = updated_entry;
+ }
+
+ if (!entry)
+ {
+ dbus_set_error (error, DBUS_ERROR_SERVICE_UNKNOWN,
+ "The name %s was not provided by any .service files",
+ service_name);
+ return NULL;
+ }
+
+ return entry;
+}
+
+dbus_bool_t
+bus_activation_activate_service (BusActivation *activation,
+ DBusConnection *connection,
+ BusTransaction *transaction,
+ dbus_bool_t auto_activation,
+ DBusMessage *activation_message,
+ const char *service_name,
+ DBusError *error)
+{
+ BusActivationEntry *entry;
+ BusPendingActivation *pending_activation;
+ BusPendingActivationEntry *pending_activation_entry;
+ DBusMessage *message;
+ DBusString service_str;
+ char **argv;
+ int argc;
+ dbus_bool_t retval;
+ DBusHashIter iter;
+ dbus_bool_t activated;
+
+ activated = TRUE;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ if (activation->n_pending_activations >=
+ bus_context_get_max_pending_activations (activation->context))
+ {
+ dbus_set_error (error, DBUS_ERROR_LIMITS_EXCEEDED,
+ "The maximum number of pending activations has been reached, activation of %s failed",
+ service_name);
+ return FALSE;
+ }
+
+ entry = activation_find_entry (activation, service_name, error);
+ if (!entry)
+ return FALSE;
+
+ /* Bypass the registry lookup if we're auto-activating, bus_dispatch would not
+ * call us if the service is already active.
+ */
+ if (!auto_activation)
+ {
+ /* Check if the service is active */
+ _dbus_string_init_const (&service_str, service_name);
+ if (bus_registry_lookup (bus_context_get_registry (activation->context), &service_str) != NULL)
+ {
+ dbus_uint32_t result;
+
+ _dbus_verbose ("Service \"%s\" is already active\n", service_name);
+
+ message = dbus_message_new_method_return (activation_message);
+
+ if (!message)
+ {
+ _dbus_verbose ("No memory to create reply to activate message\n");
+ BUS_SET_OOM (error);
+ return FALSE;
+ }
+
+ result = DBUS_START_REPLY_ALREADY_RUNNING;
+
+ if (!dbus_message_append_args (message,
+ DBUS_TYPE_UINT32, &result,
+ DBUS_TYPE_INVALID))
+ {
+ _dbus_verbose ("No memory to set args of reply to activate message\n");
+ BUS_SET_OOM (error);
+ dbus_message_unref (message);
+ return FALSE;
+ }
+
+ retval = bus_transaction_send_from_driver (transaction, connection, message);
+ dbus_message_unref (message);
+ if (!retval)
+ {
+ _dbus_verbose ("Failed to send reply\n");
+ BUS_SET_OOM (error);
+ }
+
+ return retval;
+ }
+ }
+
+ pending_activation_entry = dbus_new0 (BusPendingActivationEntry, 1);
+ if (!pending_activation_entry)
+ {
+ _dbus_verbose ("Failed to create pending activation entry\n");
+ BUS_SET_OOM (error);
+ return FALSE;
+ }
+
+ pending_activation_entry->auto_activation = auto_activation;
+
+ pending_activation_entry->activation_message = activation_message;
+ dbus_message_ref (activation_message);
+ pending_activation_entry->connection = connection;
+ dbus_connection_ref (connection);
+
+ /* Check if the service is being activated */
+ pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations, service_name);
+ if (pending_activation)
+ {
+ if (!_dbus_list_append (&pending_activation->entries, pending_activation_entry))
+ {
+ _dbus_verbose ("Failed to append a new entry to pending activation\n");
+
+ BUS_SET_OOM (error);
+ bus_pending_activation_entry_free (pending_activation_entry);
+ return FALSE;
+ }
+
+ pending_activation->n_entries += 1;
+ pending_activation->activation->n_pending_activations += 1;
+ }
+ else
+ {
+ pending_activation = dbus_new0 (BusPendingActivation, 1);
+ if (!pending_activation)
+ {
+ _dbus_verbose ("Failed to create pending activation\n");
+
+ BUS_SET_OOM (error);
+ bus_pending_activation_entry_free (pending_activation_entry);
+ return FALSE;
+ }
+
+ pending_activation->activation = activation;
+ pending_activation->refcount = 1;
+
+ pending_activation->service_name = _dbus_strdup (service_name);
+ if (!pending_activation->service_name)
+ {
+ _dbus_verbose ("Failed to copy service name for pending activation\n");
+
+ BUS_SET_OOM (error);
+ bus_pending_activation_unref (pending_activation);
+ bus_pending_activation_entry_free (pending_activation_entry);
+ return FALSE;
+ }
+
+ pending_activation->exec = _dbus_strdup (entry->exec);
+ if (!pending_activation->exec)
+ {
+ _dbus_verbose ("Failed to copy service exec for pending activation\n");
+ BUS_SET_OOM (error);
+ bus_pending_activation_unref (pending_activation);
+ bus_pending_activation_entry_free (pending_activation_entry);
+ return FALSE;
+ }
+
+ pending_activation->timeout =
+ _dbus_timeout_new (bus_context_get_activation_timeout (activation->context),
+ pending_activation_timed_out,
+ pending_activation,
+ NULL);
+ if (!pending_activation->timeout)
+ {
+ _dbus_verbose ("Failed to create timeout for pending activation\n");
+
+ BUS_SET_OOM (error);
+ bus_pending_activation_unref (pending_activation);
+ bus_pending_activation_entry_free (pending_activation_entry);
+ return FALSE;
+ }
+
+ if (!_dbus_loop_add_timeout (bus_context_get_loop (activation->context),
+ pending_activation->timeout,
+ handle_timeout_callback,
+ pending_activation,
+ NULL))
+ {
+ _dbus_verbose ("Failed to add timeout for pending activation\n");
+
+ BUS_SET_OOM (error);
+ bus_pending_activation_unref (pending_activation);
+ bus_pending_activation_entry_free (pending_activation_entry);
+ return FALSE;
+ }
+
+ pending_activation->timeout_added = TRUE;
+
+ if (!_dbus_list_append (&pending_activation->entries, pending_activation_entry))
+ {
+ _dbus_verbose ("Failed to add entry to just-created pending activation\n");
+
+ BUS_SET_OOM (error);
+ bus_pending_activation_unref (pending_activation);
+ bus_pending_activation_entry_free (pending_activation_entry);
+ return FALSE;
+ }
+
+ pending_activation->n_entries += 1;
+ pending_activation->activation->n_pending_activations += 1;
+
+ activated = FALSE;
+ _dbus_hash_iter_init (activation->pending_activations, &iter);
+ while (_dbus_hash_iter_next (&iter))
+ {
+ BusPendingActivation *p = _dbus_hash_iter_get_value (&iter);
+
+ if (strcmp (p->exec, entry->exec) == 0)
+ {
+ activated = TRUE;
+ break;
+ }
+ }
+
+ if (!_dbus_hash_table_insert_string (activation->pending_activations,
+ pending_activation->service_name,
+ pending_activation))
+ {
+ _dbus_verbose ("Failed to put pending activation in hash table\n");
+
+ BUS_SET_OOM (error);
+ bus_pending_activation_unref (pending_activation);
+ return FALSE;
+ }
+ }
+
+ if (!add_cancel_pending_to_transaction (transaction, pending_activation))
+ {
+ _dbus_verbose ("Failed to add pending activation cancel hook to transaction\n");
+ BUS_SET_OOM (error);
+ _dbus_hash_table_remove_string (activation->pending_activations,
+ pending_activation->service_name);
+
+ return FALSE;
+ }
+
+ if (activated)
+ return TRUE;
+ #ifndef __SYMBIAN32__
+
+ /* Now try to spawn the process */
+ if (!_dbus_shell_parse_argv (entry->exec, &argc, &argv, error))
+ {
+ _dbus_verbose ("Failed to parse command line: %s\n", entry->exec);
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+
+ _dbus_hash_table_remove_string (activation->pending_activations,
+ pending_activation->service_name);
+
+ return FALSE;
+ }
+
+ _dbus_verbose ("Spawning %s ...\n", argv[0]);
+ #else
+
+ _dbus_verbose ("Spawning %s ...\n", entry->exec);
+ #endif
+
+ #ifdef __SYMBIAN32__
+ if (!_dbus_spawn_async_with_babysitter (&pending_activation->babysitter, &entry->exec,
+ child_setup, activation,
+ error))
+ #else
+ if (!_dbus_spawn_async_with_babysitter (&pending_activation->babysitter, argv,
+ child_setup, activation,
+ error))
+ {
+ _dbus_verbose ("Failed to spawn child\n");
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ dbus_free_string_array (argv);
+
+ return FALSE;
+ }
+
+ dbus_free_string_array (argv);
+
+ _dbus_assert (pending_activation->babysitter != NULL);
+
+ if (!_dbus_babysitter_set_watch_functions (pending_activation->babysitter,
+ add_babysitter_watch,
+ remove_babysitter_watch,
+ NULL,
+ pending_activation,
+ NULL))
+ {
+ BUS_SET_OOM (error);
+ _dbus_verbose ("Failed to set babysitter watch functions\n");
+ return FALSE;
+ }
+ #endif
+ return TRUE;
+}
+
+dbus_bool_t
+bus_activation_list_services (BusActivation *activation,
+ char ***listp,
+ int *array_len)
+{
+ int i, j, len;
+ char **retval;
+ DBusHashIter iter;
+
+ len = _dbus_hash_table_get_n_entries (activation->entries);
+ retval = dbus_new (char *, len + 1);
+
+ if (retval == NULL)
+ return FALSE;
+
+ _dbus_hash_iter_init (activation->entries, &iter);
+ i = 0;
+ while (_dbus_hash_iter_next (&iter))
+ {
+ BusActivationEntry *entry = _dbus_hash_iter_get_value (&iter);
+
+ retval[i] = _dbus_strdup (entry->name);
+ if (retval[i] == NULL)
+ goto error;
+
+ i++;
+ }
+
+ retval[i] = NULL;
+
+ if (array_len)
+ *array_len = len;
+
+ *listp = retval;
+ return TRUE;
+
+ error:
+ for (j = 0; j < i; j++)
+ dbus_free (retval[i]);
+ dbus_free (retval);
+
+ return FALSE;
+}
+
+
+#ifdef DBUS_BUILD_TESTS
+
+#include <stdio.h>
+
+#define SERVICE_NAME_1 "MyService1"
+#define SERVICE_NAME_2 "MyService2"
+#define SERVICE_NAME_3 "MyService3"
+
+#define SERVICE_FILE_1 "service-1.service"
+#define SERVICE_FILE_2 "service-2.service"
+#define SERVICE_FILE_3 "service-3.service"
+
+static dbus_bool_t
+test_create_service_file (DBusString *dir,
+ const char *filename,
+ const char *name,
+ const char *exec)
+{
+ DBusString file_name, full_path;
+ FILE *file;
+ dbus_bool_t ret_val;
+
+ ret_val = TRUE;
+ _dbus_string_init_const (&file_name, filename);
+
+ if (!_dbus_string_init (&full_path))
+ return FALSE;
+
+ if (!_dbus_string_append (&full_path, _dbus_string_get_const_data (dir)) ||
+ !_dbus_concat_dir_and_file (&full_path, &file_name))
+ {
+ ret_val = FALSE;
+ goto out;
+ }
+
+ file = fopen (_dbus_string_get_const_data (&full_path), "w");
+ if (!file)
+ {
+ ret_val = FALSE;
+ goto out;
+ }
+
+ fprintf (file, "[D-BUS Service]\nName=%s\nExec=%s\n", name, exec);
+ fclose (file);
+
+out:
+ _dbus_string_free (&full_path);
+ return ret_val;
+}
+
+static dbus_bool_t
+test_remove_service_file (DBusString *dir, const char *filename)
+{
+ DBusString file_name, full_path;
+ dbus_bool_t ret_val;
+
+ ret_val = TRUE;
+
+ _dbus_string_init_const (&file_name, filename);
+
+ if (!_dbus_string_init (&full_path))
+ return FALSE;
+
+ if (!_dbus_string_append (&full_path, _dbus_string_get_const_data (dir)) ||
+ !_dbus_concat_dir_and_file (&full_path, &file_name))
+ {
+ ret_val = FALSE;
+ goto out;
+ }
+
+ if (!_dbus_delete_file (&full_path, NULL))
+ {
+ ret_val = FALSE;
+ goto out;
+ }
+
+out:
+ _dbus_string_free (&full_path);
+ return ret_val;
+}
+
+static dbus_bool_t
+test_remove_directory (DBusString *dir)
+{
+ DBusDirIter *iter;
+ DBusString filename, full_path;
+ dbus_bool_t ret_val;
+
+ ret_val = TRUE;
+
+ if (!_dbus_string_init (&filename))
+ return FALSE;
+
+ if (!_dbus_string_init (&full_path))
+ {
+ _dbus_string_free (&filename);
+ return FALSE;
+ }
+
+ iter = _dbus_directory_open (dir, NULL);
+ if (iter == NULL)
+ {
+ ret_val = FALSE;
+ goto out;
+ }
+
+ while (_dbus_directory_get_next_file (iter, &filename, NULL))
+ {
+ if (!test_remove_service_file (dir, _dbus_string_get_const_data (&filename)))
+ {
+ ret_val = FALSE;
+ goto out;
+ }
+ }
+ _dbus_directory_close (iter);
+
+ if (!_dbus_delete_directory (dir, NULL))
+ {
+ ret_val = FALSE;
+ goto out;
+ }
+
+out:
+ _dbus_string_free (&filename);
+ _dbus_string_free (&full_path);
+
+ return ret_val;
+}
+
+static dbus_bool_t
+init_service_reload_test (DBusString *dir)
+{
+ DBusStat stat_buf;
+
+ if (!_dbus_stat (dir, &stat_buf, NULL))
+ {
+ if (!_dbus_create_directory (dir, NULL))
+ return FALSE;
+ }
+ else
+ {
+ if (!test_remove_directory (dir))
+ return FALSE;
+
+ if (!_dbus_create_directory (dir, NULL))
+ return FALSE;
+ }
+
+ /* Create one initial file */
+ if (!test_create_service_file (dir, SERVICE_FILE_1, SERVICE_NAME_1, "exec-1"))
+ return FALSE;
+
+ return TRUE;
+}
+
+static dbus_bool_t
+cleanup_service_reload_test (DBusString *dir)
+{
+ if (!test_remove_directory (dir))
+ return FALSE;
+
+ return TRUE;
+}
+
+typedef struct
+{
+ BusActivation *activation;
+ const char *service_name;
+ dbus_bool_t expecting_find;
+} CheckData;
+
+static dbus_bool_t
+check_func (void *data)
+{
+ CheckData *d;
+ BusActivationEntry *entry;
+ DBusError error;
+ dbus_bool_t ret_val;
+
+ ret_val = TRUE;
+ d = data;
+
+ dbus_error_init (&error);
+
+ entry = activation_find_entry (d->activation, d->service_name, &error);
+ if (entry == NULL)
+ {
+ if (dbus_error_has_name (&error, DBUS_ERROR_NO_MEMORY))
+ {
+ ret_val = TRUE;
+ }
+ else
+ {
+ if (d->expecting_find)
+ ret_val = FALSE;
+ }
+
+ dbus_error_free (&error);
+ }
+ else
+ {
+ if (!d->expecting_find)
+ ret_val = FALSE;
+ }
+
+ return ret_val;
+}
+
+static dbus_bool_t
+do_test (const char *description, dbus_bool_t oom_test, CheckData *data)
+{
+ dbus_bool_t err;
+
+ if (oom_test)
+ err = !_dbus_test_oom_handling (description, check_func, data);
+ else
+ err = !check_func (data);
+
+ if (err)
+ _dbus_assert_not_reached ("Test failed");
+
+ return TRUE;
+}
+
+static dbus_bool_t
+do_service_reload_test (DBusString *dir, dbus_bool_t oom_test)
+{
+ BusActivation *activation;
+ DBusString address;
+ DBusList *directories;
+ CheckData d;
+
+ directories = NULL;
+ _dbus_string_init_const (&address, "");
+
+ if (!_dbus_list_append (&directories, _dbus_string_get_data (dir)))
+ return FALSE;
+
+ activation = bus_activation_new (NULL, &address, &directories, NULL);
+ if (!activation)
+ return FALSE;
+
+ d.activation = activation;
+
+ /* Check for existing service file */
+ d.expecting_find = TRUE;
+ d.service_name = SERVICE_NAME_1;
+
+ if (!do_test ("Existing service file", oom_test, &d))
+ return FALSE;
+
+ /* Check for non-existing service file */
+ d.expecting_find = FALSE;
+ d.service_name = SERVICE_NAME_3;
+
+ if (!do_test ("Nonexisting service file", oom_test, &d))
+ return FALSE;
+
+ /* Check for added service file */
+ if (!test_create_service_file (dir, SERVICE_FILE_2, SERVICE_NAME_2, "exec-2"))
+ return FALSE;
+
+ d.expecting_find = TRUE;
+ d.service_name = SERVICE_NAME_2;
+
+ if (!do_test ("Added service file", oom_test, &d))
+ return FALSE;
+
+ /* Check for removed service file */
+ if (!test_remove_service_file (dir, SERVICE_FILE_2))
+ return FALSE;
+
+ d.expecting_find = FALSE;
+ d.service_name = SERVICE_FILE_2;
+
+ if (!do_test ("Removed service file", oom_test, &d))
+ return FALSE;
+
+ /* Check for updated service file */
+
+ _dbus_sleep_milliseconds (1000); /* Sleep a second to make sure the mtime is updated */
+
+ if (!test_create_service_file (dir, SERVICE_FILE_1, SERVICE_NAME_3, "exec-3"))
+ return FALSE;
+
+ d.expecting_find = TRUE;
+ d.service_name = SERVICE_NAME_3;
+
+ if (!do_test ("Updated service file, part 1", oom_test, &d))
+ return FALSE;
+
+ d.expecting_find = FALSE;
+ d.service_name = SERVICE_NAME_1;
+
+ if (!do_test ("Updated service file, part 2", oom_test, &d))
+ return FALSE;
+
+ bus_activation_unref (activation);
+ _dbus_list_clear (&directories);
+
+ return TRUE;
+}
+
+dbus_bool_t
+bus_activation_service_reload_test (const DBusString *test_data_dir)
+{
+ DBusString directory;
+ DBusStat stat_buf;
+ if (!_dbus_string_init (&directory))
+ return FALSE;
+
+ if (!_dbus_string_append (&directory, _dbus_get_tmpdir()))
+ return FALSE;
+ if (!_dbus_stat (&directory, &stat_buf, NULL))
+ {
+ if (!_dbus_create_directory (&directory, NULL))
+ return FALSE;
+ }
+
+ if (!_dbus_string_append (&directory, "/dbus-reload-test-") ||
+ !_dbus_generate_random_ascii (&directory, 6))
+ {
+ return FALSE;
+ }
+
+ /* Do normal tests */
+ if (!init_service_reload_test (&directory))
+ _dbus_assert_not_reached ("could not initiate service reload test");
+
+ if (!do_service_reload_test (&directory, FALSE))
+ ; /* Do nothing? */
+
+ /* Do OOM tests */
+ if (!init_service_reload_test (&directory))
+ _dbus_assert_not_reached ("could not initiate service reload test");
+
+ if (!do_service_reload_test (&directory, TRUE))
+ ; /* Do nothing? */
+
+ /* Cleanup test directory */
+ if (!cleanup_service_reload_test (&directory))
+ return FALSE;
+
+ _dbus_string_free (&directory);
+
+ return TRUE;
+}
+
+#endif /* DBUS_BUILD_TESTS */