Plugin *
plugin_find(GlobalConfig *cfg, gint plugin_type, const gchar *plugin_name)
{
Plugin *p;
PluginCandidate *candidate;
/* try registered plugins first */
p = plugin_find_in_list(cfg, cfg->plugins, plugin_type, plugin_name);
if (p)
return p;
candidate = (PluginCandidate *) plugin_find_in_list(cfg, cfg->candidate_plugins, plugin_type, plugin_name);
if (!candidate)
return NULL;
/* try to autoload the module */
plugin_load_module(candidate->module_name, cfg, NULL);
/* by this time it should've registered */
p = plugin_find_in_list(cfg, cfg->plugins, plugin_type, plugin_name);
if (p)
{
return p;
}
else
{
msg_error("This module claims to support a plugin, which it didn't register after loading",
evt_tag_str("module", candidate->module_name),
evt_tag_str("context", cfg_lexer_lookup_context_name_by_type(plugin_type)),
evt_tag_str("name", plugin_name));
}
return NULL;
}
void
plugin_register(GlobalConfig *cfg, Plugin *p, gint number)
{
gint i;
for (i = 0; i < number; i++)
{
if (plugin_find_in_list(cfg, cfg->plugins, p[i].type, p[i].name))
{
msg_debug("Attempted to register the same plugin multiple times, ignoring",
evt_tag_str("context", cfg_lexer_lookup_context_name_by_type(p[i].type)),
evt_tag_str("name", p[i].name));
continue;
}
cfg->plugins = g_list_prepend(cfg->plugins, &p[i]);
}
}
void
plugin_load_candidate_modules(GlobalConfig *cfg)
{
GModule *mod;
gchar **mod_paths;
gint i, j;
mod_paths = g_strsplit(module_path, ":", 0);
for (i = 0; mod_paths[i]; i++)
{
GDir *dir;
const gchar *fname;
dir = g_dir_open(mod_paths[i], 0, NULL);
if (!dir)
continue;
while ((fname = g_dir_read_name(dir)))
{
if (g_str_has_suffix(fname, G_MODULE_SUFFIX))
{
gchar *module_name;
ModuleInfo *module_info;
gboolean success;
if (g_str_has_prefix(fname, "lib"))
fname += 3;
module_name = g_strndup(fname, (gint) (strlen(fname) - strlen(G_MODULE_SUFFIX) - 1));
mod = plugin_dlopen_module(module_name, module_path);
if (mod)
success = g_module_symbol(mod, "module_info", (gpointer *) &module_info);
else
success = FALSE;
if (success && module_info)
{
for (j = 0; j < module_info->plugins_len; j++)
{
Plugin *plugin = &module_info->plugins[j];
PluginCandidate *candidate_plugin;
candidate_plugin = (PluginCandidate *) plugin_find_in_list(cfg, cfg->candidate_plugins, plugin->type, plugin->name);
if (candidate_plugin)
{
if (candidate_plugin->preference < module_info->preference)
{
plugin_candidate_set_module_name(candidate_plugin, module_info->canonical_name);
plugin_candidate_set_preference(candidate_plugin, module_info->preference);
}
}
else
{
cfg->candidate_plugins = g_list_prepend(cfg->candidate_plugins, plugin_candidate_new(plugin->type, plugin->name, module_info->canonical_name, module_info->preference));
}
}
}
g_free(module_name);
if (mod)
g_module_close(mod);
else
mod = NULL;
}
}
g_dir_close(dir);
}
g_strfreev(mod_paths);
}
