wash/mango
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sandbox: queue: check list is not empty before popping entries

Browse Source
This commit is contained in:
max 🍓
2023-02-02 16:45:13 +00:00
parent 9409ebbb19
commit 49e23849a5
2 changed files with 17 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
sandbox/queue/queue.c
View File

@@ -1,4 +1,6 @@
#include <socks/queue.h>
#include <assert.h>
#include <stdio.h>
void queue_insert_before(queue_t *q, queue_entry_t *entry, queue_entry_t *before)
{
@@ -70,19 +72,30 @@ void queue_push_back(queue_t *q, queue_entry_t *entry)
queue_entry_t *queue_pop_front(queue_t *q)
{
queue_entry_t *x = q->q_first;
queue_delete(q, x);
if (x) {
queue_delete(q, x);
}
return x;
}
queue_entry_t *queue_pop_back(queue_t *q)
{
queue_entry_t *x = q->q_last;
queue_delete(q, x);
if (x) {
queue_delete(q, x);
}
return x;
}
void queue_delete(queue_t *q, queue_entry_t *entry)
{
if (!entry) {
printf("null entry\n");
return;
}
if (entry == q->q_first) {
q->q_first = q->q_first->qe_next;
}