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35 lines
752 B
C++
35 lines
752 B
C++
#include <IO/ReadBufferFromFileBase.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int UNKNOWN_FILE_SIZE;
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}
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ReadBufferFromFileBase::ReadBufferFromFileBase() : BufferWithOwnMemory<SeekableReadBuffer>(0)
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{
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}
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ReadBufferFromFileBase::ReadBufferFromFileBase(
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size_t buf_size,
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char * existing_memory,
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size_t alignment,
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std::optional<size_t> file_size_)
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: BufferWithOwnMemory<SeekableReadBuffer>(buf_size, existing_memory, alignment)
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, file_size(file_size_)
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{
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}
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ReadBufferFromFileBase::~ReadBufferFromFileBase() = default;
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size_t ReadBufferFromFileBase::getFileSize()
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{
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if (file_size)
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return *file_size;
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throw Exception(ErrorCodes::UNKNOWN_FILE_SIZE, "Cannot find out file size for read buffer");
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}
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}
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