Move folly/Checksum.h into folly/hash/

[folly.git] / folly / detail / ChecksumDetail.h

diff --git a/folly/detail/ChecksumDetail.h b/folly/detail/ChecksumDetail.h
deleted file mode 100644 (file)
index 05a6f22..0000000
--- a/folly/detail/ChecksumDetail.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright 2017 Facebook, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <folly/Portability.h>
-
-#if FOLLY_SSE_PREREQ(4, 2)
-#include <immintrin.h>
-#endif
-
-#include <stdint.h>
-#include <cstddef>
-
-namespace folly { namespace detail {
-
-/**
- * Compute a CRC-32C checksum of a buffer using a hardware-accelerated
- * implementation.
- *
- * @note This function is exposed to support special cases where the
- *       calling code is absolutely certain it ought to invoke a hardware-
- *       accelerated CRC-32C implementation - unit tests, for example.  For
- *       all other scenarios, please call crc32c() and let it pick an
- *       implementation based on the capabilities of the underlying CPU.
- */
-uint32_t crc32c_hw(const uint8_t* data, size_t nbytes,
-    uint32_t startingChecksum = ~0U);
-
-/**
- * Check whether a hardware-accelerated CRC-32C implementation is
- * supported on the current CPU.
- */
-bool crc32c_hw_supported();
-
-/**
- * Compute a CRC-32C checksum of a buffer using a portable,
- * software-only implementation.
- *
- * @note This function is exposed to support special cases where the
- *       calling code is absolutely certain it wants to use the software
- *       implementation instead of the hardware-accelerated code - unit
- *       tests, for example.  For all other scenarios, please call crc32c()
- *       and let it pick an implementation based on the capabilities of
- *       the underlying CPU.
- */
-uint32_t crc32c_sw(const uint8_t* data, size_t nbytes,
-    uint32_t startingChecksum = ~0U);
-
-/**
- * Compute a CRC-32 checksum of a buffer using a hardware-accelerated
- * implementation.
- *
- * @note This function is exposed to support special cases where the
- *       calling code is absolutely certain it ought to invoke a hardware-
- *       accelerated CRC-32 implementation - unit tests, for example.  For
- *       all other scenarios, please call crc32() and let it pick an
- *       implementation based on the capabilities of the underlying CPU.
- */
-uint32_t
-crc32_hw(const uint8_t* data, size_t nbytes, uint32_t startingChecksum = ~0U);
-
-#if FOLLY_SSE_PREREQ(4, 2)
-uint32_t
-crc32_hw_aligned(uint32_t remainder, const __m128i* p, size_t vec_count);
-#endif
-
-/**
- * Check whether a hardware-accelerated CRC-32 implementation is
- * supported on the current CPU.
- */
-bool crc32_hw_supported();
-
-/**
- * Compute a CRC-32 checksum of a buffer using a portable,
- * software-only implementation.
- *
- * @note This function is exposed to support special cases where the
- *       calling code is absolutely certain it wants to use the software
- *       implementation instead of the hardware-accelerated code - unit
- *       tests, for example.  For all other scenarios, please call crc32()
- *       and let it pick an implementation based on the capabilities of
- *       the underlying CPU.
- */
-uint32_t
-crc32_sw(const uint8_t* data, size_t nbytes, uint32_t startingChecksum = ~0U);
-}} // folly::detail