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#ifdef HAVE_CONFIG_H
# include "elementary_config.h"
#endif
#include <Elementary.h>
#include "../../static_libs/buildsystem/buildsystem.h"
#include "elm_priv.h"
/* what are moodules in elementary for? for modularising behavior and features
* so they can be plugged in and out where you dont want the core source to
* always behave like that or do it that way. plug it at runtime!
*
* they have module names (in config) and "slots" to plug that module into
* to server a purpose. eg you plug plugin "xx" into the "entry-copy-paste"
* slot so it would provide replacement copy & paste ui functionality and
* specific symbols
*
* config is something like:
*
* export ELM_MODULES="xx>slot1:yy>slot2"
*
* where a module named xx is plugged into slot1 & yy is plugged into slot2
*
* real examples:
*
* export ELM_MODULES="my_module>entry/api"
*
* this loads the module called "my_module" into the slot "entry/api" which
* is an api slot for entry modules to modify behavior and hook to
* creation/deletion of the entry as well as replace the longpress behavior.
*/
static Eina_Hash *modules = NULL;
static Eina_Hash *modules_as = NULL;
void
_elm_module_init(void)
{
modules = eina_hash_string_small_new(NULL);
modules_as = eina_hash_string_small_new(NULL);
}
void
_elm_module_shutdown(void)
{
Eina_Iterator *it;
Elm_Module *m;
if (modules)
{
Eina_List *tl = NULL;
it = eina_hash_iterator_data_new(modules);
EINA_ITERATOR_FOREACH(it, m) tl = eina_list_append(tl, m);
eina_iterator_free(it);
EINA_LIST_FREE(tl, m) _elm_module_del(m);
ELM_SAFE_FREE(modules, eina_hash_free);
}
ELM_SAFE_FREE(modules_as, eina_hash_free);
}
void
_elm_module_parse(const char *s)
{
const char *p, *pe;
p = s;
pe = p;
for (;;)
{
if ((*pe == ':') || (!*pe))
{ // p -> pe == 'name:'
if (pe > p)
{
char *n = malloc(pe - p + 1);
if (n)
{
char *nn;
strncpy(n, p, pe - p);
n[pe - p] = 0;
nn = strchr(n, '>');
if (nn)
{
*nn = 0;
nn++;
_elm_module_add(n, nn);
}
free(n);
}
}
if (!*pe) break;
p = pe + 1;
pe = p;
}
else
pe++;
}
}
Elm_Module *
_elm_module_find_as(const char *as)
{
Elm_Module *m;
m = eina_hash_find(modules_as, as);
if (!m) return NULL;
if (!_elm_module_load(m))
{
ERR("Failed to load elementary module: '%s': %m", m->as);
_elm_module_del(m);
return NULL;
}
return m;
}
#if defined(_WIN32) || defined(__CYGWIN__)
# define EFL_SHARED_EXTENSION ".dll"
#else
# define EFL_SHARED_EXTENSION ".so"
#endif
Eina_Bool
_elm_module_load(Elm_Module *m)
{
char buf[PATH_MAX];
if (m->module) return EINA_TRUE;
if (strchr(m->name, '/')) return EINA_FALSE;
#ifdef NEED_RUN_IN_TREE
if (getenv("EFL_RUN_IN_TREE"))
{
bs_mod_get(buf, sizeof(buf), "elementary", m->name);
}
else
#endif
{
snprintf(buf, sizeof(buf), "%s/elementary/modules/%s/%s/module"EFL_SHARED_EXTENSION,
_elm_lib_dir, m->name, MODULE_ARCH);
}
m->module = eina_module_new(buf);
if ((m->module) && (eina_module_load(m->module) == EINA_TRUE))
{
m->init_func = eina_module_symbol_get(m->module, "elm_modapi_init");
if (m->init_func)
{
m->shutdown_func =
eina_module_symbol_get(m->module, "elm_modapi_shutdown");
m->so_path = eina_stringshare_add(buf);
snprintf(buf, sizeof(buf), "%s/elementary/modules/%s/%s",
_elm_lib_dir, m->name, MODULE_ARCH);
m->bin_dir = eina_stringshare_add(buf);
snprintf(buf, sizeof(buf), "%s/elementary/modules/%s",
_elm_lib_dir, m->name);
m->data_dir = eina_stringshare_add(buf);
}
else
{
if (m->module)
{
eina_module_unload(m->module);
eina_module_free(m->module);
m->module = NULL;
}
return EINA_FALSE;
}
}
else if (m->module)
{
eina_module_free(m->module);
m->module = NULL;
}
if (!m->module) return EINA_FALSE;
return EINA_TRUE;
}
void
_elm_module_unload(Elm_Module *m)
{
eina_stringshare_del(m->so_path);
eina_stringshare_del(m->data_dir);
eina_stringshare_del(m->bin_dir);
ELM_SAFE_FREE(m->api, free);
if (m->module)
{
if (m->shutdown_func) m->shutdown_func(m);
eina_module_unload(m->module);
eina_module_free(m->module);
m->module = NULL;
}
m->shutdown_func = NULL;
m->init_func = NULL;
}
Elm_Module *
_elm_module_add(const char *name, const char *as)
{
Elm_Module *m;
if (name[0] == '/') return NULL;
m = eina_hash_find(modules, name);
if (m)
{
m->references++;
return m;
}
m = calloc(1, sizeof(Elm_Module));
if (!m) return NULL;
m->version = 1;
m->name = eina_stringshare_add(name);
m->references = 1;
eina_hash_direct_add(modules, m->name, m);
m->as = eina_stringshare_add(as);
eina_hash_direct_add(modules_as, m->as, m);
return m;
}
void
_elm_module_del(Elm_Module *m)
{
m->references--;
if (m->references > 0) return;
_elm_module_unload(m);
eina_hash_del(modules, m->name, m);
eina_hash_del(modules_as, m->as, m);
eina_stringshare_del(m->name);
eina_stringshare_del(m->as);
free(m);
}
const void *
_elm_module_symbol_get(Elm_Module *m, const char *name)
{
return eina_module_symbol_get(m->module, name);
}
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