1 files changed, 157 insertions, 0 deletions

diff --git a/examples/redis-unstable/deps/jemalloc/test/integration/aligned_alloc.c b/examples/redis-unstable/deps/jemalloc/test/integration/aligned_alloc.c
new file mode 100644
index 0000000..b37d5ba
--- /dev/null
+++ b/examples/redis-unstable/deps/jemalloc/test/integration/aligned_alloc.c
@@ -0,0 +1,157 @@
+#include "test/jemalloc_test.h"
+
+#define MAXALIGN (((size_t)1) << 23)
+
+/*
+ * On systems which can't merge extents, tests that call this function generate
+ * a lot of dirty memory very quickly.  Purging between cycles mitigates
+ * potential OOM on e.g. 32-bit Windows.
+ */
+static void
+purge(void) {
+        expect_d_eq(mallctl("arena.0.purge", NULL, NULL, NULL, 0), 0,
+            "Unexpected mallctl error");
+}
+
+TEST_BEGIN(test_alignment_errors) {
+        size_t alignment;
+        void *p;
+
+        alignment = 0;
+        set_errno(0);
+        p = aligned_alloc(alignment, 1);
+        expect_false(p != NULL || get_errno() != EINVAL,
+            "Expected error for invalid alignment %zu", alignment);
+
+        for (alignment = sizeof(size_t); alignment < MAXALIGN;
+            alignment <<= 1) {
+                set_errno(0);
+                p = aligned_alloc(alignment + 1, 1);
+                expect_false(p != NULL || get_errno() != EINVAL,
+                    "Expected error for invalid alignment %zu",
+                    alignment + 1);
+        }
+}
+TEST_END
+
+
+/*
+ * GCC "-Walloc-size-larger-than" warning detects when one of the memory
+ * allocation functions is called with a size larger than the maximum size that
+ * they support. Here we want to explicitly test that the allocation functions
+ * do indeed fail properly when this is the case, which triggers the warning.
+ * Therefore we disable the warning for these tests.
+ */
+JEMALLOC_DIAGNOSTIC_PUSH
+JEMALLOC_DIAGNOSTIC_IGNORE_ALLOC_SIZE_LARGER_THAN
+
+TEST_BEGIN(test_oom_errors) {
+        size_t alignment, size;
+        void *p;
+
+#if LG_SIZEOF_PTR == 3
+        alignment = UINT64_C(0x8000000000000000);
+        size      = UINT64_C(0x8000000000000000);
+#else
+        alignment = 0x80000000LU;
+        size      = 0x80000000LU;
+#endif
+        set_errno(0);
+        p = aligned_alloc(alignment, size);
+        expect_false(p != NULL || get_errno() != ENOMEM,
+            "Expected error for aligned_alloc(%zu, %zu)",
+            alignment, size);
+
+#if LG_SIZEOF_PTR == 3
+        alignment = UINT64_C(0x4000000000000000);
+        size      = UINT64_C(0xc000000000000001);
+#else
+        alignment = 0x40000000LU;
+        size      = 0xc0000001LU;
+#endif
+        set_errno(0);
+        p = aligned_alloc(alignment, size);
+        expect_false(p != NULL || get_errno() != ENOMEM,
+            "Expected error for aligned_alloc(%zu, %zu)",
+            alignment, size);
+
+        alignment = 0x10LU;
+#if LG_SIZEOF_PTR == 3
+        size = UINT64_C(0xfffffffffffffff0);
+#else
+        size = 0xfffffff0LU;
+#endif
+        set_errno(0);
+        p = aligned_alloc(alignment, size);
+        expect_false(p != NULL || get_errno() != ENOMEM,
+            "Expected error for aligned_alloc(&p, %zu, %zu)",
+            alignment, size);
+}
+TEST_END
+
+/* Re-enable the "-Walloc-size-larger-than=" warning */
+JEMALLOC_DIAGNOSTIC_POP
+
+TEST_BEGIN(test_alignment_and_size) {
+#define NITER 4
+        size_t alignment, size, total;
+        unsigned i;
+        void *ps[NITER];
+
+        for (i = 0; i < NITER; i++) {
+                ps[i] = NULL;
+        }
+
+        for (alignment = 8;
+            alignment <= MAXALIGN;
+            alignment <<= 1) {
+                total = 0;
+                for (size = 1;
+                    size < 3 * alignment && size < (1U << 31);
+                    size += (alignment >> (LG_SIZEOF_PTR-1)) - 1) {
+                        for (i = 0; i < NITER; i++) {
+                                ps[i] = aligned_alloc(alignment, size);
+                                if (ps[i] == NULL) {
+                                        char buf[BUFERROR_BUF];
+
+                                        buferror(get_errno(), buf, sizeof(buf));
+                                        test_fail(
+                                            "Error for alignment=%zu, "
+                                            "size=%zu (%#zx): %s",
+                                            alignment, size, size, buf);
+                                }
+                                total += TEST_MALLOC_SIZE(ps[i]);
+                                if (total >= (MAXALIGN << 1)) {
+                                        break;
+                                }
+                        }
+                        for (i = 0; i < NITER; i++) {
+                                if (ps[i] != NULL) {
+                                        free(ps[i]);
+                                        ps[i] = NULL;
+                                }
+                        }
+                }
+                purge();
+        }
+#undef NITER
+}
+TEST_END
+
+TEST_BEGIN(test_zero_alloc) {
+        void *res = aligned_alloc(8, 0);
+        assert(res);
+        size_t usable = TEST_MALLOC_SIZE(res);
+        assert(usable > 0);
+        free(res);
+}
+TEST_END
+
+int
+main(void) {
+        return test(
+            test_alignment_errors,
+            test_oom_errors,
+            test_alignment_and_size,
+            test_zero_alloc);
+}