Initial commit of Hyperscan

unit/internal/partial.cpp

@@ -0,0 +1,248 @@
+/*
+ * Copyright (c) 2015, Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "util/partial_store.h"
+#include "gtest/gtest.h"
+#include "ue2common.h"
+
+#include <cstring>
+
+using namespace std;
+
+TEST(partial, u32_1) {
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u32(a + 8, 0xaa, 1);
+    b[8] = 0xaa;
+
+    ASSERT_EQ(0xaa, partial_load_u32(a + 8, 1));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+
+TEST(partial, u32_2) {
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u32(a + 8, 0xaabb, 2);
+    b[8] = 0xbb;
+    b[9] = 0xaa;
+
+    ASSERT_EQ(0xaabb, partial_load_u32(a + 8, 2));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+
+TEST(partial, u32_3) {
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u32(a + 8, 0xaabbcc, 3);
+    b[8]  = 0xcc;
+    b[9]  = 0xbb;
+    b[10] = 0xaa;
+
+    ASSERT_EQ(0xaabbcc, partial_load_u32(a + 8, 3));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+
+TEST(partial, u32_4) {
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u32(a + 8, 0xaabbccdd, 4);
+    b[8]  = 0xdd;
+    b[9]  = 0xcc;
+    b[10] = 0xbb;
+    b[11] = 0xaa;
+
+    ASSERT_EQ(0xaabbccdd, partial_load_u32(a + 8, 4));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+
+TEST(partial, u64a_1) {
+    u64a val = 0xaa;
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u64a(a + 8, val, 1);
+    b[8] = 0xaa;
+
+    ASSERT_EQ(val, partial_load_u64a(a + 8, 1));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+
+TEST(partial, u64a_2) {
+    u64a val = 0xaabb;
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u64a(a + 8, val, 2);
+    b[8] = 0xbb;
+    b[9] = 0xaa;
+
+    ASSERT_EQ(val, partial_load_u64a(a + 8, 2));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+
+TEST(partial, u64a_3) {
+    u64a val = 0xaabbcc;
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u64a(a + 8, val, 3);
+    b[8]  = 0xcc;
+    b[9]  = 0xbb;
+    b[10] = 0xaa;
+
+    ASSERT_EQ(val, partial_load_u64a(a + 8, 3));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+
+TEST(partial, u64a_4) {
+    u64a val = 0xaabbccdd;
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u64a(a + 8, val, 4);
+    b[8]  = 0xdd;
+    b[9]  = 0xcc;
+    b[10] = 0xbb;
+    b[11] = 0xaa;
+
+    ASSERT_EQ(val, partial_load_u64a(a + 8, 4));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+
+TEST(partial, u64a_5) {
+    u64a val = 0xaabbccdd55ULL;
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u64a(a + 8, val, 5);
+    b[8]  = 0x55;
+    b[9]  = 0xdd;
+    b[10] = 0xcc;
+    b[11] = 0xbb;
+    b[12] = 0xaa;
+
+    ASSERT_EQ(val, partial_load_u64a(a + 8, 5));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+
+TEST(partial, u64a_6) {
+    u64a val = 0xaabbccdd5566ULL;
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u64a(a + 8, val, 6);
+    b[8]  = 0x66;
+    b[9]  = 0x55;
+    b[10] = 0xdd;
+    b[11] = 0xcc;
+    b[12] = 0xbb;
+    b[13] = 0xaa;
+
+    ASSERT_EQ(val, partial_load_u64a(a + 8, 6));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+
+TEST(partial, u64a_7) {
+    u64a val = 0xaabbccdd556677ULL;
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u64a(a + 8, val, 7);
+    b[8]  = 0x77;
+    b[9]  = 0x66;
+    b[10] = 0x55;
+    b[11] = 0xdd;
+    b[12] = 0xcc;
+    b[13] = 0xbb;
+    b[14] = 0xaa;
+
+    ASSERT_EQ(val, partial_load_u64a(a + 8, 7));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+
+TEST(partial, u64a_8) {
+    u64a val = 0xaabbccdd55667788ULL;
+    u8 a[16];
+    memset(a, 0x1f, sizeof(a));
+
+    u8 b[16];
+    memcpy(b, a, sizeof(a));
+
+    partial_store_u64a(a + 8, val, 8);
+    b[8]  = 0x88;
+    b[9]  = 0x77;
+    b[10] = 0x66;
+    b[11] = 0x55;
+    b[12] = 0xdd;
+    b[13] = 0xcc;
+    b[14] = 0xbb;
+    b[15] = 0xaa;
+
+    ASSERT_EQ(val, partial_load_u64a(a + 8, 8));
+    ASSERT_EQ(0, memcmp(a, b, sizeof(a)));
+}
+