void
n_log_set_target (NLogTarget target)
{
if (target == _log_target)
return;
_log_target = target;
if (target == N_LOG_TARGET_SYSLOG) {
openlog ("ngfd", 0, LOG_DAEMON);
N_INFO (LOG_CAT "logging enabled to syslog");
}
else {
N_INFO (LOG_CAT "logging enabled to stdout.");
closelog();
}
}
int
n_core_initialize (NCore *core)
{
g_assert (core != NULL);
g_assert (core->conf_path != NULL);
g_assert (core->plugin_path != NULL);
NSinkInterface **sink = NULL;
NInputInterface **input = NULL;
NPlugin *plugin = NULL;
GList *p = NULL;
/* setup hooks */
n_hook_init (&core->hooks[N_CORE_HOOK_INIT_DONE]);
n_hook_init (&core->hooks[N_CORE_HOOK_TRANSFORM_PROPERTIES]);
n_hook_init (&core->hooks[N_CORE_HOOK_FILTER_SINKS]);
/* load the default configuration. */
if (!n_core_parse_configuration (core))
goto failed_init;
/* check for required plugins. */
if (!core->required_plugins && !core->optional_plugins) {
N_ERROR (LOG_CAT "no plugins to load defined in configuration");
goto failed_init;
}
/* load events from the given event path. */
if (!n_core_parse_events (core))
goto failed_init;
/* load all plugins */
/* first mandatory plugins */
for (p = g_list_first (core->required_plugins); p; p = g_list_next (p)) {
if (!(plugin = n_core_load_plugin (core, (const char*) p->data)))
goto failed_init;
core->plugins = g_list_append (core->plugins, plugin);
}
/* then optional plugins */
for (p = g_list_first (core->optional_plugins); p; p = g_list_next (p)) {
if ((plugin = n_core_load_plugin (core, (const char*) p->data)))
core->plugins = g_list_append (core->plugins, plugin);
if (!plugin)
N_INFO (LOG_CAT "optional plugin %s not loaded.", p->data);
}
/* setup the sink priorities based on the sink-order */
n_core_set_sink_priorities (core->sinks, core->sink_order);
/* initialize all sinks. if no sinks, we're done. */
if (!core->sinks) {
N_ERROR (LOG_CAT "no plugin has registered sink interface");
goto failed_init;
}
for (sink = core->sinks; *sink; ++sink) {
if ((*sink)->funcs.initialize && !(*sink)->funcs.initialize (*sink)) {
N_ERROR (LOG_CAT "sink '%s' failed to initialize", (*sink)->name);
goto failed_init;
}
}
/* initialize all inputs. */
if (!core->inputs) {
N_ERROR (LOG_CAT "no plugin has registered input interface");
goto failed_init;
}
for (input = core->inputs; *input; ++input) {
if ((*input)->funcs.initialize && !(*input)->funcs.initialize (*input)) {
N_ERROR (LOG_CAT "input '%s' failed to initialize", (*input)->name);
goto failed_init;
}
}
/* fire the init done hook. */
n_core_fire_hook (core, N_CORE_HOOK_INIT_DONE, NULL);
return TRUE;
failed_init:
return FALSE;
}
