CRC32.h

 
/*
* Interface for CRC32 and CRC32C
*/
#pragma once
 
#ifdef __APPLE__
 
#ifdef __clang__
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#endif // __clang__
 
#ifdef __GNUC__
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#endif // __GNUC__
 
#endif // __APPLE__
 
#include <aws/core/Core_EXPORTS.h>
 
#include <aws/core/utils/crypto/Hash.h>
 
namespace Aws
{
    namespace Utils
    {
        namespace Crypto
        {
            class AWS_CORE_API CRC32 : public Hash
            {
            public:
                CRC32();
                virtual ~CRC32();
 
                virtual HashResult Calculate(const Aws::String& str) override;
 
                virtual HashResult Calculate(Aws::IStream& stream) override;
 
                virtual void Update(unsigned char* buffer, size_t bufferSize) override;
 
                virtual HashResult GetHash() override;
            private:
 
                std::shared_ptr< Hash > m_hashImpl;
            };
 
            class AWS_CORE_API CRC32C : public Hash
            {
            public:
                CRC32C();
                virtual ~CRC32C();
 
                virtual HashResult Calculate(const Aws::String& str) override;
 
                virtual HashResult Calculate(Aws::IStream& stream) override;
 
                virtual void Update(unsigned char* buffer, size_t bufferSize) override;
 
                virtual HashResult GetHash() override;
 
            private:
 
                std::shared_ptr< Hash > m_hashImpl;
            };
 
            class AWS_CORE_API CRC32Impl : public Hash
            {
            public:
 
                CRC32Impl();
                virtual ~CRC32Impl() {}
 
                virtual HashResult Calculate(const Aws::String& str) override;
 
                virtual HashResult Calculate(Aws::IStream& stream) override;
 
                virtual void Update(unsigned char* buffer, size_t bufferSize) override;
 
                virtual HashResult GetHash() override;
 
            private:
                int m_runningCrc32;
            };
 
            class AWS_CORE_API CRC32CImpl : public Hash
            {
            public:
 
                CRC32CImpl();
                virtual ~CRC32CImpl() {}
 
                virtual HashResult Calculate(const Aws::String& str) override;
 
                virtual HashResult Calculate(Aws::IStream& stream) override;
 
                virtual void Update(unsigned char* buffer, size_t bufferSize) override;
 
                virtual HashResult GetHash() override;
 
            private:
                int m_runningCrc32c;
            };
 
        } // namespace Crypto
    } // namespace Utils
} // namespace Aws