TESTS: Add a stress-test for mt_lists.
Add test-list.c, a stress-test for mt_list, to ensure there's no concurrency
issue.
The number of threads is provided on the command line, and it randomly
add, removes, or parses the list until it made MAX_ACTION actions (currently
5000000).
diff --git a/tests/test-list.c b/tests/test-list.c
new file mode 100644
index 0000000..d95800e
--- /dev/null
+++ b/tests/test-list.c
@@ -0,0 +1,98 @@
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#define USE_THREAD
+#include <common/mini-clist.h>
+
+/* Stress test the mt_lists.
+ * Compile from the haproxy directory with :
+ * cc -Iinclude tests/test-list.c -lpthread -O2 -o test-list
+ * The only argument it takes is the number of threads to be used.
+ * ./test-list 4
+ */
+
+struct mt_list pouet_list = MT_LIST_HEAD_INIT(pouet_list);
+#define MAX_ACTION 5000000
+
+__thread unsigned int tid;
+struct pouet_lol {
+ struct mt_list list_elt;
+};
+
+void *thread(void *pouet)
+{
+ struct pouet_lol *lol;
+ struct mt_list *elt1, elt2;
+ tid = (uintptr_t)pouet;
+ int i = 0;
+
+ for (int i = 0; i < MAX_ACTION; i++) {
+ struct pouet_lol *lol;
+ struct mt_list *elt1, elt2;
+ switch (random() % 4) {
+ case 0:
+ lol = malloc(sizeof(*lol));
+ MT_LIST_INIT(&lol->list_elt);
+ MT_LIST_ADD(&pouet_list, &lol->list_elt);
+ break;
+ case 1:
+ lol = malloc(sizeof(*lol));
+ MT_LIST_INIT(&lol->list_elt);
+ MT_LIST_ADDQ(&pouet_list, &lol->list_elt);
+ break;
+
+ case 2:
+ lol = MT_LIST_POP(&pouet_list, struct pouet_lol *, list_elt);
+ if (lol)
+ free(lol);
+ break;
+ case 3:
+
+ mt_list_for_each_entry_safe(lol, &pouet_list, list_elt, elt1, elt2)
+
+{
+ if (random() % 2) {
+ MT_LIST_DEL_SAFE(elt1);
+ free(lol);
+ }
+ if (random() % 2) {
+ break;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ int nb;
+ pthread_t *pth;
+
+ srandom(time(NULL));
+ if (argc != 2) {
+ printf("Usage: %s <nb_threads>\n", argv[0]);
+ exit(1);
+ }
+ nb = atoi(argv[1]);
+#if 0
+ if (nb < 2) {
+ printf("Need at least 2 threads.\n");
+ exit(1);
+ }
+#endif
+ pth = malloc(nb * sizeof(*pth));
+ if (pth == NULL) {
+ printf("Shot failed to connect.\n");
+ exit(1);
+ }
+ for (int i = 0; i < nb; i++) {
+ pthread_create(&pth[i], NULL, thread, (void *)(uintptr_t)i);
+
+ }
+ for (int i = 0; i < nb; i++)
+ pthread_join(pth[i], NULL);
+ return 0;
+}