129 lines
2.6 KiB
C
129 lines
2.6 KiB
C
#include <socks/object.h>
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struct set {
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struct queue s_list;
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char s_name[OBJECT_NAME_MAX];
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};
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static kern_status_t set_query_name(struct object *obj, char out[OBJECT_NAME_MAX])
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{
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struct set *set = object_data(obj);
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strncpy(out, set->s_name, OBJECT_NAME_MAX - 1);
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out[OBJECT_NAME_MAX - 1] = 0;
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return KERN_OK;
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}
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static kern_status_t set_get_child_at(struct object *obj, size_t at, struct object **out)
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{
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struct set *set = object_data(obj);
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size_t i = 0;
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queue_foreach(struct object, child, &set->s_list, ob_list) {
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if (i == at) {
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*out = object_ref(child);
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return KERN_OK;
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}
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i++;
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}
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return KERN_NO_ENTRY;
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}
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static kern_status_t set_get_child_named(struct object *obj, const char *name, struct object **out)
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{
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struct set *set = object_data(obj);
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char child_name[OBJECT_NAME_MAX];
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queue_foreach(struct object, child, &set->s_list, ob_list) {
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kern_status_t status = object_query_name(child, child_name);
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if (status != KERN_OK) {
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continue;
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}
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if (!strcmp(child_name, name)) {
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*out = object_ref(child);
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return KERN_OK;
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}
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}
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return KERN_NO_ENTRY;
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}
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static struct object_type set_type = {
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.ob_name = "set",
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.ob_size = sizeof(struct set),
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.ob_ops = {
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.query_name = set_query_name,
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.get_named = set_get_child_named,
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.get_at = set_get_child_at,
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},
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};
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void init_set_objects(void)
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{
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object_type_register(&set_type);
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}
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struct object *set_create(const char *name)
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{
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struct object *set_obj = object_create(&set_type);
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if (!set_obj) {
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return NULL;
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}
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struct set *set = object_data(set_obj);
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set->s_list = QUEUE_INIT;
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strncpy(set->s_name, name, sizeof set->s_name - 1);
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set->s_name[sizeof set->s_name - 1] = 0;
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return set_obj;
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}
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kern_status_t set_add_object(struct object *set_obj, struct object *obj)
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{
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if (!object_is_set(set_obj)) {
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return KERN_INVALID_ARGUMENT;
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}
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struct set *set = object_data(set_obj);
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char child_name[OBJECT_NAME_MAX];
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char obj_name[OBJECT_NAME_MAX];
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kern_status_t status = object_query_name(obj, obj_name);
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if (status != KERN_OK) {
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return status;
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}
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queue_foreach (struct object, child, &set->s_list, ob_list) {
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object_query_name(child, child_name);
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if (!strcmp(child_name, obj_name)) {
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return KERN_NAME_EXISTS;
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}
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}
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object_ref(obj);
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queue_push_back(&set->s_list, &obj->ob_list);
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return KERN_OK;
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}
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kern_status_t set_remove_object(struct object *set_obj, struct object *obj)
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{
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if (!object_is_set(set_obj)) {
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return KERN_INVALID_ARGUMENT;
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}
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struct set *set = object_data(set_obj);
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queue_delete(&set->s_list, &obj->ob_list);
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object_deref(obj);
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return KERN_OK;
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}
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bool object_is_set(struct object *obj)
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{
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return obj->ob_type == &set_type;
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}
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