diff options
| -rw-r--r-- | configure.ac | 2 | ||||
| -rw-r--r-- | include/Makefile.am | 6 | ||||
| -rw-r--r-- | include/plugin.h | 76 | ||||
| -rw-r--r-- | include/version.h.in | 35 | ||||
| -rw-r--r-- | src/Makefile.am | 2 | ||||
| -rw-r--r-- | src/main.c | 4 | ||||
| -rw-r--r-- | src/ofono.h | 5 | ||||
| -rw-r--r-- | src/plugin.c | 162 |
8 files changed, 289 insertions, 3 deletions
diff --git a/configure.ac b/configure.ac index 0638907a..ca26016a 100644 --- a/configure.ac +++ b/configure.ac @@ -76,5 +76,5 @@ AC_SUBST(DBUS_DATADIR) AC_SUBST([GDBUS_CFLAGS], ['$(DBUS_CFLAGS) -I$(top_srcdir)/gdbus']) AC_SUBST([GDBUS_LIBS], ['$(top_builddir)/gdbus/libgdbus.la $(DBUS_LIBS)']) -AC_OUTPUT(Makefile gdbus/Makefile include/Makefile +AC_OUTPUT(Makefile gdbus/Makefile include/Makefile include/version.h src/Makefile plugins/Makefile) diff --git a/include/Makefile.am b/include/Makefile.am index 8f3fef2e..cc48b373 100644 --- a/include/Makefile.am +++ b/include/Makefile.am @@ -1,7 +1,9 @@ includedir = @includedir@/ofono -include_HEADERS = log.h +include_HEADERS = log.h plugin.h + +nodist_include_HEADERS = version.h MAINTAINERCLEANFILES = Makefile.in @@ -10,6 +12,8 @@ all-local: mkdir ofono; \ list='$(include_HEADERS)'; for i in $$list; \ do $(LN_S) $(abs_top_srcdir)/include/$$i ofono/$$i; done; \ + list='$(nodist_include_HEADERS)'; for i in $$list; \ + do $(LN_S) $(abs_top_builddir)/include/$$i ofono/$$i; done; \ fi clean-local: diff --git a/include/plugin.h b/include/plugin.h new file mode 100644 index 00000000..4b01ad43 --- /dev/null +++ b/include/plugin.h @@ -0,0 +1,76 @@ +/* + * + * 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 + * + */ + +#ifndef __OFONO_PLUGIN_H +#define __OFONO_PLUGIN_H + +#include <ofono/version.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef OFONO_API_SUBJECT_TO_CHANGE +#error "Please define OFONO_API_SUBJECT_TO_CHANGE to acknowledge your \ +understanding that oFono hasn't reached a stable API." +#endif + +#define OFONO_PLUGIN_PRIORITY_LOW -100 +#define OFONO_PLUGIN_PRIORITY_DEFAULT 0 +#define OFONO_PLUGIN_PRIORITY_HIGH 100 + +/** + * SECTION:plugin + * @title: Plugin premitives + * @short_description: Functions for declaring plugins + */ + +struct ofono_plugin_desc { + const char *name; + const char *description; + const char *version; + int priority; + int (*init) (void); + void (*exit) (void); +}; + +/** + * OFONO_PLUGIN_DEFINE: + * @name: plugin name + * @description: plugin description + * @version: plugin version string + * @init: init function called on plugin loading + * @exit: exit function called on plugin removal + * + * Macro for defining a plugin descriptor + */ +#define OFONO_PLUGIN_DEFINE(name, description, version, priority, init, exit) \ + extern struct ofono_plugin_desc ofono_plugin_desc \ + __attribute__ ((visibility("default"))); \ + struct ofono_plugin_desc ofono_plugin_desc = { \ + #name, description, version, priority, init, exit \ + }; + +#ifdef __cplusplus +} +#endif + +#endif /* __OFONO_PLUGIN_H */ diff --git a/include/version.h.in b/include/version.h.in new file mode 100644 index 00000000..5817e185 --- /dev/null +++ b/include/version.h.in @@ -0,0 +1,35 @@ +/* + * + * 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 + * + */ + +#ifndef __OFONO_VERSION_H +#define __OFONO_VERSION_H + +#ifdef __cplusplus +extern "C" { +#endif + +#define OFONO_VERSION "@VERSION@" + +#ifdef __cplusplus +} +#endif + +#endif /* __OFONO_VERSION_H */ diff --git a/src/Makefile.am b/src/Makefile.am index 2bf71061..2b1f677c 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -1,7 +1,7 @@ sbin_PROGRAMS = ofonod -ofonod_SOURCES = main.c ofono.h log.c +ofonod_SOURCES = main.c ofono.h log.c plugin.c ofonod_LDADD = @GDBUS_LIBS@ @GLIB_LIBS@ @GTHREAD_LIBS@ -ldl @@ -29,6 +29,10 @@ int main(int argc, char *argv[]) { __ofono_log_init(); + __ofono_plugin_init(NULL, NULL); + + __ofono_plugin_cleanup(); + __ofono_log_cleanup(); return 0; diff --git a/src/ofono.h b/src/ofono.h index 03b4eeb1..aca0f02f 100644 --- a/src/ofono.h +++ b/src/ofono.h @@ -27,3 +27,8 @@ int __ofono_log_init(void); void __ofono_log_cleanup(void); + +#include <ofono/plugin.h> + +int __ofono_plugin_init(const char *pattern, const char *exclude); +void __ofono_plugin_cleanup(void); 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); +} |