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#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include "main.h"
#include "list.h"
#include "idManager.h"
static list_t *listID;
static int lastID;
typedef struct id_item_struct {
int id;
int count;
} id_item_t;
static id_item_t *newIdItem(int id, int count)
{
id_item_t *new;
new = malloc(sizeof(id_item_t));
new->id = id;
new->count = count;
return new;
}
static void destroyIdItem(id_item_t *p)
{
assert(p != NULL);
free(p);
}
void id_init_list()
{
DEBUG_MSG(_("[Debug] Initializing ID manager\n"));
listID = list_new();
lastID = 0;
}
int id_is_register(int id)
{
int i;
assert(listID != NULL);
for (i = 0; i < listID->count; i++) {
id_item_t *this;
this = listID->list[i];
if (this->id == id) {
return i;
}
}
return -1;
}
static int findNewID()
{
int ret;
assert(listID != NULL);
if (listID->count >= MAX_ID - 1) {
assert(!_("[Error] There is no free ID left"));
}
do {
/*ret = (random() % (listID->count + 8 )) + 1;*/
ret = random() % MAX_ID + 1;
} while (id_is_register(ret) != -1);
/*printf("new ID %d\n", ret);*/
return ret;
}
int id_get_newcount(int count)
{
int id;
id = findNewID();
list_add(listID, newIdItem(id, count));
return id;
}
int id_get_new()
{
return id_get_newcount(1);
}
void id_inc(int id)
{
id_item_t *this;
int index;
assert(listID != NULL);
index = id_is_register(id);
if (index == -1) {
fprintf(stderr, _("[Error] Trying to increment counter of never registered ID [%d]"), id);
assert(0);
return; /* ha ha ha */
}
this = listID->list[index];
this->count++;
/*printf("inc ID %d %d\n", this->id, this->count);*/
return;
}
void id_del(int id)
{
id_item_t *this;
int index;
assert(listID != NULL);
index = id_is_register(id);
if (index == -1) {
fprintf(stderr, _("[Error] Trying to delete never registered ID [%d]"), id);
assert(0);
return; /* ha ha ha */
}
this = listID->list[index];
this->count--;
/*printf("dec ID %d %d\n", this->id, this->count);*/
if (this->count <= 0) {
list_del_item(listID, index, free);
/*printf("listID->count = %d\n", listID->count);*/
}
return;
}
void id_replace(int old_id, int new_id)
{
int index_old_id;
int index_new_id;
id_item_t *this;
if (old_id == new_id) {
return;
}
index_old_id = id_is_register(old_id);
assert(index_old_id != -1);
index_new_id = id_is_register(new_id);
assert(index_new_id == -1);
this = listID->list[index_old_id];
this->id = new_id;
}
void infoID(int id)
{
id_item_t *this;
int index;
assert(listID != NULL);
index = id_is_register(id);
if (index == -1) {
DEBUG_MSG(_("[Debug] Getting information of nonexistent ID [%d]\n"), id);
return;
}
this = listID->list[index];
DEBUG_MSG(_("[Debug] ID information [%d]: used %d times\n"), this->id, this->count);
return;
}
void id_quit_list()
{
DEBUG_MSG(_("[Debug] Shutting down ID manager\n"));
assert(listID != NULL);
list_destroy_item(listID, destroyIdItem);
}
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