X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=junkcode%2Frusty%40rustcorp.com.au-ntdb%2Ftest%2Frun-25-hashoverload.c;fp=junkcode%2Frusty%40rustcorp.com.au-ntdb%2Ftest%2Frun-25-hashoverload.c;h=5a2c9cd7a2d25d02f76f1a4f10fb389beba57508;hb=1aab74723e837a0fd8091e264a325bb2cdcdd0fa;hp=0000000000000000000000000000000000000000;hpb=979071e8587d4819a7f78613b68d29e222e5db63;p=ccan

diff --git a/junkcode/rusty@rustcorp.com.au-ntdb/test/run-25-hashoverload.c b/junkcode/rusty@rustcorp.com.au-ntdb/test/run-25-hashoverload.c
new file mode 100644
index 00000000..5a2c9cd7
--- /dev/null
+++ b/junkcode/rusty@rustcorp.com.au-ntdb/test/run-25-hashoverload.c
@@ -0,0 +1,94 @@
+#include "ntdb-source.h"
+#include "tap-interface.h"
+#include "logging.h"
+#include "helprun-external-agent.h"
+
+#define OVERLOAD 100
+
+static uint32_t badhash(const void *key, size_t len, uint32_t seed, void *priv)
+{
+	return 0;
+}
+
+static int trav(struct ntdb_context *ntdb, NTDB_DATA key, NTDB_DATA dbuf, void *p)
+{
+	if (p)
+		return ntdb_delete(ntdb, key);
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	unsigned int i, j;
+	struct ntdb_context *ntdb;
+	NTDB_DATA key = { (unsigned char *)&j, sizeof(j) };
+	NTDB_DATA dbuf = { (unsigned char *)&j, sizeof(j) };
+	union ntdb_attribute hattr = { .hash = { .base = { NTDB_ATTRIBUTE_HASH },
+						.fn = badhash } };
+	int flags[] = { NTDB_INTERNAL, NTDB_DEFAULT, NTDB_NOMMAP,
+			NTDB_INTERNAL|NTDB_CONVERT, NTDB_CONVERT,
+			NTDB_NOMMAP|NTDB_CONVERT,
+	};
+
+	hattr.base.next = &tap_log_attr;
+
+	plan_tests(sizeof(flags) / sizeof(flags[0]) * (7 * OVERLOAD + 11) + 1);
+	for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+		NTDB_DATA d = { NULL, 0 }; /* Bogus GCC warning */
+
+		ntdb = ntdb_open("run-25-hashoverload.ntdb",
+				 flags[i]|MAYBE_NOSYNC,
+				 O_RDWR|O_CREAT|O_TRUNC, 0600, &hattr);
+		ok1(ntdb);
+		if (!ntdb)
+			continue;
+
+		/* Overload a bucket. */
+		for (j = 0; j < OVERLOAD; j++) {
+			ok1(ntdb_store(ntdb, key, dbuf, NTDB_INSERT) == 0);
+		}
+		ok1(ntdb_check(ntdb, NULL, NULL) == 0);
+
+		/* Check we can find them all. */
+		for (j = 0; j < OVERLOAD; j++) {
+			ok1(ntdb_fetch(ntdb, key, &d) == NTDB_SUCCESS);
+			ok1(d.dsize == sizeof(j));
+			ok1(d.dptr != NULL);
+			ok1(d.dptr && memcmp(d.dptr, &j, d.dsize) == 0);
+			free(d.dptr);
+		}
+
+		/* Traverse through them. */
+		ok1(ntdb_traverse(ntdb, trav, NULL) == OVERLOAD);
+
+		/* Delete the first 99. */
+		for (j = 0; j < OVERLOAD-1; j++)
+			ok1(ntdb_delete(ntdb, key) == 0);
+
+		ok1(ntdb_check(ntdb, NULL, NULL) == 0);
+
+		ok1(ntdb_fetch(ntdb, key, &d) == NTDB_SUCCESS);
+		ok1(d.dsize == sizeof(j));
+		ok1(d.dptr != NULL);
+		ok1(d.dptr && memcmp(d.dptr, &j, d.dsize) == 0);
+		free(d.dptr);
+
+		/* Traverse through them. */
+		ok1(ntdb_traverse(ntdb, trav, NULL) == 1);
+
+		/* Re-add */
+		for (j = 0; j < OVERLOAD-1; j++) {
+			ok1(ntdb_store(ntdb, key, dbuf, NTDB_INSERT) == 0);
+		}
+		ok1(ntdb_check(ntdb, NULL, NULL) == 0);
+
+		/* Now try deleting as we go. */
+		ok1(ntdb_traverse(ntdb, trav, trav) == OVERLOAD);
+		ok1(ntdb_check(ntdb, NULL, NULL) == 0);
+		ok1(ntdb_traverse(ntdb, trav, NULL) == 0);
+		ntdb_close(ntdb);
+	}
+
+	ok1(tap_log_messages == 0);
+	return exit_status();
+}