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/**
* @file module.c Module loading
*
* Copyright (C) 2010 Creytiv.com
*/
#include <re.h>
#include <baresip.h>
#include "core.h"
struct modapp {
struct mod *mod;
struct le le;
};
static struct list modappl;
static void modapp_destructor(void *arg)
{
struct modapp *modapp = arg;
list_unlink(&modapp->le);
mem_deref(modapp->mod);
}
#ifdef STATIC
/* Declared in static.c */
extern const struct mod_export *mod_table[];
static const struct mod_export *find_module(const struct pl *pl)
{
struct pl name;
uint32_t i;
if (re_regex(pl->p, pl->l, "[^.]+.[^]*", &name, NULL))
name = *pl;
for (i=0; ; i++) {
const struct mod_export *me = mod_table[i];
if (!me)
return NULL;
if (0 == pl_strcasecmp(&name, me->name))
return me;
}
return NULL;
}
#endif
static int load_module(struct mod **modp, const struct pl *modpath,
const struct pl *name)
{
char file[256];
struct mod *m = NULL;
int err = 0;
if (!name)
return EINVAL;
#ifdef STATIC
/* Try static first */
err = mod_add(&m, find_module(name));
if (!err)
goto out;
#endif
/* Then dynamic */
if (re_snprintf(file, sizeof(file), "%r/%r", modpath, name) < 0) {
err = ENOMEM;
goto out;
}
err = mod_load(&m, file);
if (err)
goto out;
out:
if (err) {
warning("module %r: %m\n", name, err);
}
else if (modp)
*modp = m;
return err;
}
static int module_handler(const struct pl *val, void *arg)
{
(void)load_module(NULL, arg, val);
return 0;
}
static int module_tmp_handler(const struct pl *val, void *arg)
{
struct mod *mod = NULL;
(void)load_module(&mod, arg, val);
mem_deref(mod);
return 0;
}
static int module_app_handler(const struct pl *val, void *arg)
{
struct modapp *modapp;
modapp = mem_zalloc(sizeof(*modapp), modapp_destructor);
if (!modapp)
return ENOMEM;
if (load_module(&modapp->mod, arg, val)) {
mem_deref(modapp);
return 0;
}
list_prepend(&modappl, &modapp->le, modapp);
return 0;
}
int module_init(const struct conf *conf)
{
struct pl path;
int err;
if (!conf)
return EINVAL;
if (conf_get(conf, "module_path", &path))
pl_set_str(&path, ".");
err = conf_apply(conf, "module", module_handler, &path);
if (err)
return err;
err = conf_apply(conf, "module_tmp", module_tmp_handler, &path);
if (err)
return err;
err = conf_apply(conf, "module_app", module_app_handler, &path);
if (err)
return err;
return 0;
}
void module_app_unload(void)
{
list_flush(&modappl);
}
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