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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "librbd/migration/HttpStream.h"
#include "common/dout.h"
#include "common/errno.h"
#include "librbd/AsioEngine.h"
#include "librbd/ImageCtx.h"
#include "librbd/asio/Utils.h"
#include "librbd/migration/HttpClient.h"
#include <boost/beast/http.hpp>
namespace librbd {
namespace migration {
namespace {
const std::string URL_KEY {"url"};
} // anonymous namespace
#define dout_subsys ceph_subsys_rbd
#undef dout_prefix
#define dout_prefix *_dout << "librbd::migration::HttpStream: " << this \
<< " " << __func__ << ": "
template <typename I>
HttpStream<I>::HttpStream(I* image_ctx, const json_spirit::mObject& json_object)
: m_image_ctx(image_ctx), m_cct(image_ctx->cct),
m_asio_engine(image_ctx->asio_engine), m_json_object(json_object) {
}
template <typename I>
HttpStream<I>::~HttpStream() {
}
template <typename I>
void HttpStream<I>::open(Context* on_finish) {
auto& url_value = m_json_object[URL_KEY];
if (url_value.type() != json_spirit::str_type) {
lderr(m_cct) << "failed to locate '" << URL_KEY << "' key" << dendl;
on_finish->complete(-EINVAL);
return;
}
m_url = url_value.get_str();
ldout(m_cct, 10) << "url=" << m_url << dendl;
m_http_client.reset(HttpClient<I>::create(m_image_ctx, m_url));
m_http_client->open(on_finish);
}
template <typename I>
void HttpStream<I>::close(Context* on_finish) {
ldout(m_cct, 10) << dendl;
if (!m_http_client) {
on_finish->complete(0);
return;
}
m_http_client->close(on_finish);
}
template <typename I>
void HttpStream<I>::get_size(uint64_t* size, Context* on_finish) {
ldout(m_cct, 10) << dendl;
m_http_client->get_size(size, on_finish);
}
template <typename I>
void HttpStream<I>::read(io::Extents&& byte_extents, bufferlist* data,
Context* on_finish) {
ldout(m_cct, 20) << "byte_extents=" << byte_extents << dendl;
m_http_client->read(std::move(byte_extents), data, on_finish);
}
} // namespace migration
} // namespace librbd
template class librbd::migration::HttpStream<librbd::ImageCtx>;
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