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// MIT License, Copyright (c) 2020 Marvin Borner
#include <assert.h>
#include <def.h>
#include <event.h>
#include <list.h>
#include <mem.h>
#include <proc.h>
#include <sys.h>
struct list *event_table[] = { [EVENT_KEYBOARD] = NULL, [EVENT_MOUSE] = NULL };
u32 event_map(enum event id, u32 *func)
{
// TODO: Check if function is already mapped
if (id >= sizeof(event_table) / sizeof(*event_table))
return -1;
if (event_table[id] == NULL)
event_table[id] = (struct list *)list_new();
struct event_descriptor *desc = malloc(sizeof(*desc));
desc->func = func;
desc->proc = proc_current();
list_add((struct list *)event_table[id], (void *)desc);
return 0;
}
// TODO: Fix unmap
void event_unmap(enum event id, u32 *func)
{
struct list *list = ((struct list *)event_table[id]);
struct event_descriptor *desc = malloc(sizeof(*desc));
desc->func = func;
desc->proc = proc_current();
struct node *iterator = list->head;
while (memcmp(iterator->data, (void *)desc, sizeof(*desc)) == 0) {
iterator = iterator->next;
if (!iterator)
return;
}
list_remove(list, iterator);
}
u32 event_trigger(enum event id, u32 *data)
{
assert(id < sizeof(event_table) / sizeof(*event_table));
struct node *iterator = ((struct list *)event_table[id])->head;
if (!iterator->data) {
printf("Event %d not mapped!\n", id);
return 1;
}
while (1) {
struct event_descriptor *desc = iterator->data;
desc->proc->event = 1 << id;
iterator = iterator->next;
if (iterator == NULL)
break;
}
// TODO: Execute event function in ring3 with process stack, ...
/* location(data); */
return 0;
}
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