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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, struct proc *proc, u32 *func)
{
assert(id < sizeof(event_table) / sizeof(*event_table));
assert(func);
if (event_table[id] == NULL)
event_table[id] = (struct list *)list_new();
struct node *iterator = event_table[id]->head;
do {
assert(((struct event_descriptor *)iterator->data)->func != func);
} while ((iterator = iterator->next) != NULL);
struct event_descriptor *desc = malloc(sizeof(*desc));
desc->id = id;
desc->func = func;
desc->proc = proc;
list_add(event_table[id], (void *)desc);
return 0;
}
void event_unmap(enum event id, struct proc *proc, u32 *func)
{
assert(id < sizeof(event_table) / sizeof(*event_table));
assert(func);
struct list *list = event_table[id];
struct event_descriptor *desc = malloc(sizeof(*desc));
desc->id = id;
desc->func = func;
desc->proc = proc;
struct node *iterator = list->head;
do {
if (memcmp(iterator->data, desc, sizeof(*desc)) == 0)
list_remove(list, iterator);
} while ((iterator = iterator->next) != NULL);
}
u32 event_trigger(enum event id, void *data)
{
(void)data;
assert(id < sizeof(event_table) / sizeof(*event_table));
struct node *iterator = event_table[id]->head;
if (memcmp(event_table[id], 0, sizeof(struct list)) == 0 || !event_table[id]->head) {
printf("Event %d not mapped!\n", id);
return 1;
}
while (1) {
struct proc_event *proc_event = malloc(sizeof(*proc_event));
struct event_descriptor *desc = iterator->data;
proc_event->desc = desc;
proc_event->data = data;
list_add(desc->proc->events, proc_event);
iterator = iterator->next;
if (iterator == NULL)
break;
}
return 0;
}
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