1 files changed, 113 insertions, 0 deletions
diff --git a/memory/jemalloc/src/test/integration/thread_tcache_enabled.c b/memory/jemalloc/src/test/integration/thread_tcache_enabled.c
new file mode 100644
index 0000000000..f4e89c682a
--- /dev/null
+++ b/memory/jemalloc/src/test/integration/thread_tcache_enabled.c
@@ -0,0 +1,113 @@
+#include "test/jemalloc_test.h"
+
+static const bool config_tcache =
+#ifdef JEMALLOC_TCACHE
+    true
+#else
+    false
+#endif
+    ;
+
+void *
+thd_start(void *arg)
+{
+	int err;
+	size_t sz;
+	bool e0, e1;
+
+	sz = sizeof(bool);
+	if ((err = mallctl("thread.tcache.enabled", &e0, &sz, NULL, 0))) {
+		if (err == ENOENT) {
+			assert_false(config_tcache,
+			    "ENOENT should only be returned if tcache is "
+			    "disabled");
+		}
+		goto label_ENOENT;
+	}
+
+	if (e0) {
+		e1 = false;
+		assert_d_eq(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz),
+		    0, "Unexpected mallctl() error");
+		assert_true(e0, "tcache should be enabled");
+	}
+
+	e1 = true;
+	assert_d_eq(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz), 0,
+	    "Unexpected mallctl() error");
+	assert_false(e0, "tcache should be disabled");
+
+	e1 = true;
+	assert_d_eq(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz), 0,
+	    "Unexpected mallctl() error");
+	assert_true(e0, "tcache should be enabled");
+
+	e1 = false;
+	assert_d_eq(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz), 0,
+	    "Unexpected mallctl() error");
+	assert_true(e0, "tcache should be enabled");
+
+	e1 = false;
+	assert_d_eq(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz), 0,
+	    "Unexpected mallctl() error");
+	assert_false(e0, "tcache should be disabled");
+
+	free(malloc(1));
+	e1 = true;
+	assert_d_eq(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz), 0,
+	    "Unexpected mallctl() error");
+	assert_false(e0, "tcache should be disabled");
+
+	free(malloc(1));
+	e1 = true;
+	assert_d_eq(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz), 0,
+	    "Unexpected mallctl() error");
+	assert_true(e0, "tcache should be enabled");
+
+	free(malloc(1));
+	e1 = false;
+	assert_d_eq(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz), 0,
+	    "Unexpected mallctl() error");
+	assert_true(e0, "tcache should be enabled");
+
+	free(malloc(1));
+	e1 = false;
+	assert_d_eq(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz), 0,
+	    "Unexpected mallctl() error");
+	assert_false(e0, "tcache should be disabled");
+
+	free(malloc(1));
+	return (NULL);
+label_ENOENT:
+	test_skip("\"thread.tcache.enabled\" mallctl not available");
+	return (NULL);
+}
+
+TEST_BEGIN(test_main_thread)
+{
+
+	thd_start(NULL);
+}
+TEST_END
+
+TEST_BEGIN(test_subthread)
+{
+	thd_t thd;
+
+	thd_create(&thd, thd_start, NULL);
+	thd_join(thd, NULL);
+}
+TEST_END
+
+int
+main(void)
+{
+
+	/* Run tests multiple times to check for bad interactions. */
+	return (test(
+	    test_main_thread,
+	    test_subthread,
+	    test_main_thread,
+	    test_subthread,
+	    test_main_thread));
+}