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#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include "module.h"
struct module* module_load(struct core *c, const char *name, const char *argument) {
struct module *m = NULL;
int r;
assert(c && name);
m = malloc(sizeof(struct module));
assert(m);
if (!(m->dl = lt_dlopenext(name)))
goto fail;
if (!(m->init = lt_dlsym(m->dl, "module_init")))
goto fail;
if (!(m->done = lt_dlsym(m->dl, "module_done")))
goto fail;
m->name = strdup(name);
m->argument = argument ? strdup(argument) : NULL;
m->userdata = NULL;
m->core = c;
assert(m->init);
if (m->init(c, m) < 0)
goto fail;
if (!c->modules)
c->modules = idxset_new(NULL, NULL);
assert(c->modules);
r = idxset_put(c->modules, m, &m->index);
assert(r >= 0 && m->index != IDXSET_INVALID);
return m;
fail:
if (m) {
if (m->dl)
lt_dlclose(m->dl);
free(m);
}
return NULL;
}
static void module_free(struct module *m) {
assert(m && m->done && m->core);
m->done(m->core, m);
lt_dlclose(m->dl);
free(m->name);
free(m->argument);
free(m);
}
void module_unload(struct core *c, struct module *m) {
assert(c && m);
assert(c->modules);
if (!(m = idxset_remove_by_data(c->modules, m, NULL)))
return;
module_free(m);
}
void module_unload_by_index(struct core *c, uint32_t index) {
struct module *m;
assert(c && index != IDXSET_INVALID);
assert(c->modules);
if (!(m = idxset_remove_by_index(c->modules, index)))
return;
module_free(m);
}
void free_callback(void *p, void *userdata) {
struct module *m = p;
assert(m);
module_free(m);
}
void module_unload_all(struct core *c) {
assert(c);
if (!c->modules)
return;
idxset_free(c->modules, free_callback, NULL);
c->modules = NULL;
}
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