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Nikita Ivanov 2022-06-17 12:49:49 +05:00
parent 2ac76f7b10
commit 805f6aa8f4
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1 changed files with 11 additions and 9 deletions
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20
src/ulist.c
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@ -10,9 +10,6 @@
#define DEFAULT_CAP 256 #define DEFAULT_CAP 256
#define NO_LOCK -1 #define NO_LOCK -1
#define ULIST_NODE_SIZE(cap, size) \
(sizeof(struct UListNode) - sizeof(void *) + (cap * size))
#define ULIST_BUF(node) ((void *)&(node).buf) #define ULIST_BUF(node) ((void *)&(node).buf)
#define ULIST_BUF_AT(list, node, i) (ULIST_BUF(node) + i * (list).size) #define ULIST_BUF_AT(list, node, i) (ULIST_BUF(node) + i * (list).size)
@ -28,11 +25,6 @@ struct UListNode {
void *buf; void *buf;
}; };
static inline int is_locked(UList *l)
{
return l->lock_i != NO_LOCK;
}
static struct UListNode *ulist_node_new(UList *l, size_t cap) static struct UListNode *ulist_node_new(UList *l, size_t cap)
{ {
struct UListNode *n; struct UListNode *n;
@ -40,7 +32,8 @@ static struct UListNode *ulist_node_new(UList *l, size_t cap)
if (cap == 0) if (cap == 0)
cap = DEFAULT_CAP; cap = DEFAULT_CAP;
if (!(n = malloc(ULIST_NODE_SIZE(cap, l->size)))) { /* Store buffer and node data in the same chunk */
if (!(n = malloc(sizeof(*n) - sizeof(n->buf) + (cap * l->size)))) {
FUNCFAILED("malloc", strerror(errno)); FUNCFAILED("malloc", strerror(errno));
abort(); abort();
} }
@ -81,6 +74,11 @@ void ulist_free(UList *l)
free(l); free(l);
} }
static inline int is_locked(UList *l)
{
return l->lock_i != NO_LOCK;
}
void ulist_append_arr(UList *l, void *arr, size_t len) void ulist_append_arr(UList *l, void *arr, size_t len)
{ {
struct UListNode *new, *node = l->tail; struct UListNode *new, *node = l->tail;
@ -113,6 +111,10 @@ void ulist_append(UList *l, void *val)
ulist_append_arr(l, val, 1); ulist_append_arr(l, val, 1);
} }
/*
* Ensure that all the elements appended will be placed in memory
* will be placed one after another. Useful for storing strings.
*/
void ulist_lock(UList *l) void ulist_lock(UList *l)
{ {
l->lock_i = l->tail->len; l->lock_i = l->tail->len;