jeanlemotan
44 lines
976 B
C++
44 lines
976 B
C++
#pragma once
|
|
#include "IMapSource.h"
|
|
#include "IStreamSource.h"
|
|
#include "tl/memory_buffer.h"
|
|
#include "fs/Api.h"
|
|
#include "tl/ptr.h"
|
|
|
|
namespace fs
|
|
{
|
|
|
|
class FS_API StreamSourceToSourceAdapter final : public IMapSource
|
|
{
|
|
public:
|
|
explicit StreamSourceToSourceAdapter(tl::unique_ref<IStreamSource>&& i_srcSource);
|
|
~StreamSourceToSourceAdapter() override = default;
|
|
|
|
tl::optional<Error> getLastError() const override;
|
|
|
|
size_t read(tl::span<uint8_t> data) override;
|
|
|
|
void seekBeg(uint64_t i_offset) override;
|
|
void seekRel(int64_t i_offset) override;
|
|
|
|
uint64_t tell() const override;
|
|
uint64_t getSize() const override;
|
|
|
|
bool isEOS() const override;
|
|
|
|
size_t getPreferredBufferSize() const override;
|
|
|
|
tl::span<const uint8_t> map(size_t size) override;
|
|
|
|
private:
|
|
void readAll() const;
|
|
|
|
tl::unique_ref<IStreamSource> m_srcSource;
|
|
mutable tl::optional<Error> m_optLastError;
|
|
mutable tl::memory_buffer m_data;
|
|
mutable bool m_readAll = false;
|
|
uint64_t m_offset = 0;
|
|
};
|
|
|
|
}
|