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//
// Copyright (C) 2004-2008 Maciej Sobczak, Stephen Hutton
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
//
#define SOCI_SOURCE
#include "soci/blob.h"
#include "soci/session.h"
#include "soci/soci-platform.h"
#include <cstddef>
using namespace soci;
blob::blob(session & s)
{
initialize(s);
}
blob::~blob() = default;
bool blob::is_valid() const
{
return static_cast<bool>(backEnd_);
}
void blob::initialize(session &session)
{
initialize(session.make_blob_backend());
}
void blob::initialize(details::blob_backend *backend)
{
backEnd_.reset(backend);
}
std::size_t blob::get_len()
{
ensure_initialized();
return backEnd_->get_len();
}
std::size_t blob::read(std::size_t offset, void *buf, std::size_t toRead)
{
ensure_initialized();
SOCI_ALLOW_DEPRECATED_BEGIN
return backEnd_->read(offset, buf, toRead);
SOCI_ALLOW_DEPRECATED_END
}
std::size_t blob::read_from_start(void * buf, std::size_t toRead,
std::size_t offset)
{
ensure_initialized();
return backEnd_->read_from_start(buf, toRead, offset);
}
std::size_t blob::write(
std::size_t offset, const void * buf, std::size_t toWrite)
{
ensure_initialized();
SOCI_ALLOW_DEPRECATED_BEGIN
return backEnd_->write(offset, buf, toWrite);
SOCI_ALLOW_DEPRECATED_END
}
std::size_t blob::write_from_start(const void * buf, std::size_t toWrite,
std::size_t offset)
{
ensure_initialized();
return backEnd_->write_from_start(buf, toWrite, offset);
}
std::size_t blob::append(const void * buf, std::size_t toWrite)
{
ensure_initialized();
return backEnd_->append(buf, toWrite);
}
void blob::trim(std::size_t newLen)
{
ensure_initialized();
backEnd_->trim(newLen);
}
void blob::ensure_initialized()
{
if (!is_valid())
{
throw soci_error("Attempted to access invalid blob");
}
}
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