Bind CRC64 (#295)

Author: waahm7

Source/AwsCommonRuntimeKit/crt/Checksums.swift

@@ -1,29 +1,43 @@
 //  Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 //  SPDX-License-Identifier: Apache-2.0.
 
-import struct Foundation.Data
 import AwsCChecksums
 
+import struct Foundation.Data
+
 extension Data {
-    
+
     /// Computes the CRC32 over data.
     /// - Parameter previousCrc32:  Pass 0 in the previousCrc32 parameter as an initial value unless continuing to update a running crc in a subsequent call.
     public func computeCRC32(previousCrc32: UInt32 = 0) -> UInt32 {
         self.withUnsafeBytes { bufferPointer in
-            return aws_checksums_crc32(bufferPointer.baseAddress?.assumingMemoryBound(to: UInt8.self),
-                                       Int32(count),
-                                       previousCrc32)
+            return aws_checksums_crc32_ex(
+                bufferPointer.baseAddress?.assumingMemoryBound(to: UInt8.self),
+                count,
+                previousCrc32)
         }
     }
-    
+
     /// Computes the crc32c over data.
     /// - Parameter previousCrc32c:  Pass 0 in the previousCrc32c parameter as an initial value unless continuing to update a running crc in a subsequent call.
     public func computeCRC32C(previousCrc32c: UInt32 = 0) -> UInt32 {
         self.withUnsafeBytes { bufferPointer in
-            return aws_checksums_crc32c(bufferPointer.baseAddress?.assumingMemoryBound(to: UInt8.self), 
-                                        Int32(count),
-                                        previousCrc32c)
-         }
+            return aws_checksums_crc32c_ex(
+                bufferPointer.baseAddress?.assumingMemoryBound(to: UInt8.self),
+                count,
+                previousCrc32c)
+        }
     }
-    
+
+    /// Computes the CRC64NVME over data.
+    /// - Parameter previousCrc64Nvme:  Pass 0 in the previousCrc64Nvme parameter as an initial value unless continuing to update a running crc in a subsequent call.
+    public func computeCRC64Nvme(previousCrc64Nvme: UInt64 = 0) -> UInt64 {
+        self.withUnsafeBytes { bufferPointer in
+            return aws_checksums_crc64nvme_ex(
+                bufferPointer.baseAddress?.assumingMemoryBound(to: UInt8.self),
+                count,
+                previousCrc64Nvme)
+        }
+    }
+
 }

Test/AwsCommonRuntimeKitTests/crt/ChecksumsTests.swift

@@ -17,5 +17,11 @@ class ChecksumsTests: XCBaseTestCase {
         XCTAssertEqual("Hello".data(using: .utf8)!.computeCRC32C(), 2178485787)
         XCTAssertEqual("{\"foo\":\"base64 encoded sha1 checksum\"}".data(using: .utf8)!.computeCRC32C(), 3565301023)
     }
+
+    func testCRC64Nvme() throws {
+        XCTAssertEqual("".data(using: .utf8)!.computeCRC64Nvme(), 0)
+        XCTAssertEqual(Data(count: 32).computeCRC64Nvme(), 0xCF3473434D4ECF3B)
+        XCTAssertEqual(Data(Array(0..<32)).computeCRC64Nvme(), 0xB9D9D4A8492CBD7F)
+    }
 
 }