diff options
Diffstat (limited to 'src/plugin.c')
| -rw-r--r-- | src/plugin.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/plugin.c b/src/plugin.c new file mode 100644 index 00000000..9fdb3325 --- /dev/null +++ b/src/plugin.c @@ -0,0 +1,162 @@ +/* + * + * oFono - Open Telephony stack for Linux + * + * Copyright (C) 2008-2009 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <dlfcn.h> + +#include <glib.h> + +#include "ofono.h" + +static GSList *plugins = NULL; + +struct ofono_plugin { + void *handle; + gboolean active; + struct ofono_plugin_desc *desc; +}; + +static gint compare_priority(gconstpointer a, gconstpointer b) +{ + const struct ofono_plugin *plugin1 = a; + const struct ofono_plugin *plugin2 = b; + + return plugin2->desc->priority - plugin1->desc->priority; +} + +static gboolean add_plugin(void *handle, struct ofono_plugin_desc *desc) +{ + struct ofono_plugin *plugin; + + if (desc->init == NULL) + return FALSE; + + if (g_str_equal(desc->version, OFONO_VERSION) == FALSE) { + DBG("version mismatch for %s", desc->description); + return FALSE; + } + + plugin = g_try_new0(struct ofono_plugin, 1); + if (plugin == NULL) + return FALSE; + + plugin->handle = handle; + plugin->active = FALSE; + plugin->desc = desc; + + plugins = g_slist_insert_sorted(plugins, plugin, compare_priority); + + return TRUE; +} + +int __ofono_plugin_init(const char *pattern, const char *exclude) +{ + GSList *list; + GDir *dir; + const gchar *file; + gchar *filename; + + DBG(""); + + dir = g_dir_open(PLUGINDIR, 0, NULL); + if (dir != NULL) { + while ((file = g_dir_read_name(dir)) != NULL) { + void *handle; + struct ofono_plugin_desc *desc; + + if (g_str_has_prefix(file, "lib") == TRUE || + g_str_has_suffix(file, ".so") == FALSE) + continue; + + filename = g_build_filename(PLUGINDIR, file, NULL); + + handle = dlopen(filename, RTLD_NOW); + if (handle == NULL) { + g_warning("Can't load %s: %s", filename, + dlerror()); + g_free(filename); + continue; + } + + g_free(filename); + + desc = dlsym(handle, "ofono_plugin_desc"); + if (desc == NULL) { + g_warning("Can't load symbol: %s", dlerror()); + dlclose(handle); + continue; + } + + if (exclude != NULL && g_pattern_match_simple(exclude, + desc->name) == TRUE) { + DBG("excluding %s", desc->description); + dlclose(handle); + continue; + } + + if (pattern != NULL && g_pattern_match_simple(pattern, + desc->name) == FALSE) { + DBG("ignoring %s", desc->description); + dlclose(handle); + continue; + } + + if (add_plugin(handle, desc) == FALSE) + dlclose(handle); + } + + g_dir_close(dir); + } + + for (list = plugins; list; list = list->next) { + struct ofono_plugin *plugin = list->data; + + if (plugin->desc->init() < 0) + continue; + + plugin->active = TRUE; + } + + return 0; +} + +void __ofono_plugin_cleanup(void) +{ + GSList *list; + + DBG(""); + + for (list = plugins; list; list = list->next) { + struct ofono_plugin *plugin = list->data; + + if (plugin->active == TRUE && plugin->desc->exit) + plugin->desc->exit(); + + dlclose(plugin->handle); + + g_free(plugin); + } + + g_slist_free(plugins); +} |