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#include "e.h"
/*
* Implementation of a protected file registry. Any files that are
* currently being used by E in core components should be registered
* here and will be protected as best as E can. :)
*/
static Eina_Hash *_e_filereg = NULL;
typedef struct _Filereg_Item Filereg_Item;
struct _Filereg_Item
{
const char *path;
int ref_count;
};
static Eina_Bool _filereg_hash_cb_free(const Eina_Hash *hash EINA_UNUSED,
const void *key EINA_UNUSED,
void *data, void *fdata EINA_UNUSED);
/* Externally accessible functions */
EINTERN int
e_filereg_init(void)
{
_e_filereg = eina_hash_string_superfast_new(NULL);
return 1;
}
EINTERN int
e_filereg_shutdown(void)
{
eina_hash_foreach(_e_filereg, _filereg_hash_cb_free, NULL);
eina_hash_free(_e_filereg);
_e_filereg = NULL;
return 1;
}
E_API int
e_filereg_register(const char *path)
{
Filereg_Item *fi = NULL;
fi = eina_hash_find(_e_filereg, path);
if (fi)
{
fi->ref_count++;
return 1;
}
fi = E_NEW(Filereg_Item, 1);
if (!fi) return 0;
fi->path = eina_stringshare_add(path);
fi->ref_count = 1;
eina_hash_add(_e_filereg, path, fi);
return 1;
}
E_API void
e_filereg_deregister(const char *path)
{
Filereg_Item *fi = NULL;
fi = eina_hash_find(_e_filereg, path);
if (fi)
{
fi->ref_count--;
if (fi->ref_count == 0)
{
eina_hash_del(_e_filereg, path, fi);
if (fi->path) eina_stringshare_del(fi->path);
E_FREE(fi);
}
}
}
E_API Eina_Bool
e_filereg_file_protected(const char *path)
{
if (eina_hash_find(_e_filereg, path)) return EINA_TRUE;
return EINA_FALSE;
}
/* Private Functions */
static Eina_Bool
_filereg_hash_cb_free(const Eina_Hash *hash EINA_UNUSED, const void *key EINA_UNUSED,
void *data, void *fdata EINA_UNUSED)
{
Filereg_Item *fi;
fi = data;
if (!fi) return EINA_TRUE;
if (fi->path) eina_stringshare_del(fi->path);
E_FREE(fi);
return EINA_TRUE;
}