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-rw-r--r--memory/jemalloc/src/test/unit/witness.c278
1 files changed, 278 insertions, 0 deletions
diff --git a/memory/jemalloc/src/test/unit/witness.c b/memory/jemalloc/src/test/unit/witness.c
new file mode 100644
index 000000000..ed172753c
--- /dev/null
+++ b/memory/jemalloc/src/test/unit/witness.c
@@ -0,0 +1,278 @@
+#include "test/jemalloc_test.h"
+
+static witness_lock_error_t *witness_lock_error_orig;
+static witness_owner_error_t *witness_owner_error_orig;
+static witness_not_owner_error_t *witness_not_owner_error_orig;
+static witness_lockless_error_t *witness_lockless_error_orig;
+
+static bool saw_lock_error;
+static bool saw_owner_error;
+static bool saw_not_owner_error;
+static bool saw_lockless_error;
+
+static void
+witness_lock_error_intercept(const witness_list_t *witnesses,
+ const witness_t *witness)
+{
+
+ saw_lock_error = true;
+}
+
+static void
+witness_owner_error_intercept(const witness_t *witness)
+{
+
+ saw_owner_error = true;
+}
+
+static void
+witness_not_owner_error_intercept(const witness_t *witness)
+{
+
+ saw_not_owner_error = true;
+}
+
+static void
+witness_lockless_error_intercept(const witness_list_t *witnesses)
+{
+
+ saw_lockless_error = true;
+}
+
+static int
+witness_comp(const witness_t *a, const witness_t *b)
+{
+
+ assert_u_eq(a->rank, b->rank, "Witnesses should have equal rank");
+
+ return (strcmp(a->name, b->name));
+}
+
+static int
+witness_comp_reverse(const witness_t *a, const witness_t *b)
+{
+
+ assert_u_eq(a->rank, b->rank, "Witnesses should have equal rank");
+
+ return (-strcmp(a->name, b->name));
+}
+
+TEST_BEGIN(test_witness)
+{
+ witness_t a, b;
+ tsdn_t *tsdn;
+
+ test_skip_if(!config_debug);
+
+ tsdn = tsdn_fetch();
+
+ witness_assert_lockless(tsdn);
+
+ witness_init(&a, "a", 1, NULL);
+ witness_assert_not_owner(tsdn, &a);
+ witness_lock(tsdn, &a);
+ witness_assert_owner(tsdn, &a);
+
+ witness_init(&b, "b", 2, NULL);
+ witness_assert_not_owner(tsdn, &b);
+ witness_lock(tsdn, &b);
+ witness_assert_owner(tsdn, &b);
+
+ witness_unlock(tsdn, &a);
+ witness_unlock(tsdn, &b);
+
+ witness_assert_lockless(tsdn);
+}
+TEST_END
+
+TEST_BEGIN(test_witness_comp)
+{
+ witness_t a, b, c, d;
+ tsdn_t *tsdn;
+
+ test_skip_if(!config_debug);
+
+ tsdn = tsdn_fetch();
+
+ witness_assert_lockless(tsdn);
+
+ witness_init(&a, "a", 1, witness_comp);
+ witness_assert_not_owner(tsdn, &a);
+ witness_lock(tsdn, &a);
+ witness_assert_owner(tsdn, &a);
+
+ witness_init(&b, "b", 1, witness_comp);
+ witness_assert_not_owner(tsdn, &b);
+ witness_lock(tsdn, &b);
+ witness_assert_owner(tsdn, &b);
+ witness_unlock(tsdn, &b);
+
+ witness_lock_error_orig = witness_lock_error;
+ witness_lock_error = witness_lock_error_intercept;
+ saw_lock_error = false;
+
+ witness_init(&c, "c", 1, witness_comp_reverse);
+ witness_assert_not_owner(tsdn, &c);
+ assert_false(saw_lock_error, "Unexpected witness lock error");
+ witness_lock(tsdn, &c);
+ assert_true(saw_lock_error, "Expected witness lock error");
+ witness_unlock(tsdn, &c);
+
+ saw_lock_error = false;
+
+ witness_init(&d, "d", 1, NULL);
+ witness_assert_not_owner(tsdn, &d);
+ assert_false(saw_lock_error, "Unexpected witness lock error");
+ witness_lock(tsdn, &d);
+ assert_true(saw_lock_error, "Expected witness lock error");
+ witness_unlock(tsdn, &d);
+
+ witness_unlock(tsdn, &a);
+
+ witness_assert_lockless(tsdn);
+
+ witness_lock_error = witness_lock_error_orig;
+}
+TEST_END
+
+TEST_BEGIN(test_witness_reversal)
+{
+ witness_t a, b;
+ tsdn_t *tsdn;
+
+ test_skip_if(!config_debug);
+
+ witness_lock_error_orig = witness_lock_error;
+ witness_lock_error = witness_lock_error_intercept;
+ saw_lock_error = false;
+
+ tsdn = tsdn_fetch();
+
+ witness_assert_lockless(tsdn);
+
+ witness_init(&a, "a", 1, NULL);
+ witness_init(&b, "b", 2, NULL);
+
+ witness_lock(tsdn, &b);
+ assert_false(saw_lock_error, "Unexpected witness lock error");
+ witness_lock(tsdn, &a);
+ assert_true(saw_lock_error, "Expected witness lock error");
+
+ witness_unlock(tsdn, &a);
+ witness_unlock(tsdn, &b);
+
+ witness_assert_lockless(tsdn);
+
+ witness_lock_error = witness_lock_error_orig;
+}
+TEST_END
+
+TEST_BEGIN(test_witness_recursive)
+{
+ witness_t a;
+ tsdn_t *tsdn;
+
+ test_skip_if(!config_debug);
+
+ witness_not_owner_error_orig = witness_not_owner_error;
+ witness_not_owner_error = witness_not_owner_error_intercept;
+ saw_not_owner_error = false;
+
+ witness_lock_error_orig = witness_lock_error;
+ witness_lock_error = witness_lock_error_intercept;
+ saw_lock_error = false;
+
+ tsdn = tsdn_fetch();
+
+ witness_assert_lockless(tsdn);
+
+ witness_init(&a, "a", 1, NULL);
+
+ witness_lock(tsdn, &a);
+ assert_false(saw_lock_error, "Unexpected witness lock error");
+ assert_false(saw_not_owner_error, "Unexpected witness not owner error");
+ witness_lock(tsdn, &a);
+ assert_true(saw_lock_error, "Expected witness lock error");
+ assert_true(saw_not_owner_error, "Expected witness not owner error");
+
+ witness_unlock(tsdn, &a);
+
+ witness_assert_lockless(tsdn);
+
+ witness_owner_error = witness_owner_error_orig;
+ witness_lock_error = witness_lock_error_orig;
+
+}
+TEST_END
+
+TEST_BEGIN(test_witness_unlock_not_owned)
+{
+ witness_t a;
+ tsdn_t *tsdn;
+
+ test_skip_if(!config_debug);
+
+ witness_owner_error_orig = witness_owner_error;
+ witness_owner_error = witness_owner_error_intercept;
+ saw_owner_error = false;
+
+ tsdn = tsdn_fetch();
+
+ witness_assert_lockless(tsdn);
+
+ witness_init(&a, "a", 1, NULL);
+
+ assert_false(saw_owner_error, "Unexpected owner error");
+ witness_unlock(tsdn, &a);
+ assert_true(saw_owner_error, "Expected owner error");
+
+ witness_assert_lockless(tsdn);
+
+ witness_owner_error = witness_owner_error_orig;
+}
+TEST_END
+
+TEST_BEGIN(test_witness_lockful)
+{
+ witness_t a;
+ tsdn_t *tsdn;
+
+ test_skip_if(!config_debug);
+
+ witness_lockless_error_orig = witness_lockless_error;
+ witness_lockless_error = witness_lockless_error_intercept;
+ saw_lockless_error = false;
+
+ tsdn = tsdn_fetch();
+
+ witness_assert_lockless(tsdn);
+
+ witness_init(&a, "a", 1, NULL);
+
+ assert_false(saw_lockless_error, "Unexpected lockless error");
+ witness_assert_lockless(tsdn);
+
+ witness_lock(tsdn, &a);
+ witness_assert_lockless(tsdn);
+ assert_true(saw_lockless_error, "Expected lockless error");
+
+ witness_unlock(tsdn, &a);
+
+ witness_assert_lockless(tsdn);
+
+ witness_lockless_error = witness_lockless_error_orig;
+}
+TEST_END
+
+int
+main(void)
+{
+
+ return (test(
+ test_witness,
+ test_witness_comp,
+ test_witness_reversal,
+ test_witness_recursive,
+ test_witness_unlock_not_owned,
+ test_witness_lockful));
+}