allow onload to be given in the config file.

onload specifies what function in your module to call when the module has been loaded or reloaded.

includes/kore.h

@@ -135,6 +135,7 @@ extern int	server_port;
 extern char	*server_ip;
 extern char	*chroot_path;
 extern char	*runas_user;
+extern char	*kore_module_onload;
 extern u_int8_t	worker_count;
 
 void		*kore_malloc(size_t);

src/config.c

@@ -40,6 +40,7 @@
 
 static int			configure_bind(char **);
 static int			configure_load(char **);
+static int			configure_onload(char **);
 static int			configure_handler(char **);
 static int			configure_domain(char **);
 static int			configure_chroot(char **);
@@ -52,6 +53,7 @@ static struct {
 } config_names[] = {
 	{ "bind",		configure_bind },
 	{ "load",		configure_load },
+	{ "onload",		configure_onload },
 	{ "static",		configure_handler },
 	{ "dynamic",		configure_handler },
 	{ "domain",		configure_domain },
@@ -137,6 +139,21 @@ configure_load(char **argv)
 	return (KORE_RESULT_OK);
 }
 
+static int
+configure_onload(char **argv)
+{
+	if (argv[1] == NULL)
+		return (KORE_RESULT_ERROR);
+
+	if (kore_module_onload != NULL) {
+		kore_log("duplicate onload directive found");
+		return (KORE_RESULT_ERROR);
+	}
+
+	kore_module_onload = kore_strdup(argv[1]);
+	return (KORE_RESULT_OK);
+}
+
 static int
 configure_domain(char **argv)
 {

src/module.c

@@ -43,6 +43,7 @@
 static void		*mod_handle = NULL;
 static char		*mod_name = NULL;
 static time_t		mod_last_mtime = 0;
+char			*kore_module_onload = NULL;
 
 struct module_domain {
 	char					*domain;
@@ -57,6 +58,7 @@ void
 kore_module_load(char *module_name)
 {
 	struct stat		st;
+	void			(*onload)(void);
 
 	kore_log("kore_module_load(%s)", module_name);
 
@@ -73,6 +75,13 @@ kore_module_load(char *module_name)
 
 	TAILQ_INIT(&domains);
 	mod_name = kore_strdup(module_name);
+
+	if (kore_module_onload != NULL) {
+		onload = dlsym(mod_handle, kore_module_onload);
+		if (onload == NULL)
+			fatal("onload '%s' not present", kore_module_onload);
+		onload();
+	}
 }
 
 void
@@ -80,6 +89,7 @@ kore_module_reload(void)
 {
 	struct module_domain		*dom;
 	struct kore_module_handle	*hdlr;
+	void				(*onload)(void);
 
 	if (dlclose(mod_handle))
 		fatal("cannot close existing module: %s", dlerror());
@@ -96,6 +106,13 @@ kore_module_reload(void)
 		}
 	}
 
+	if (kore_module_onload != NULL) {
+		onload = dlsym(mod_handle, kore_module_onload);
+		if (onload == NULL)
+			fatal("onload '%s' not present", kore_module_onload);
+		onload();
+	}
+
 	kore_log("reloaded '%s' module", mod_name);
 }