tdlight/td/telegram/files/FileHashUploader.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/telegram/files/FileLoaderActor.h"
#include "td/telegram/files/FileLocation.h"
#include "td/telegram/files/ResourceManager.h"
#include "td/actor/actor.h"
#include "td/utils/BufferedFd.h"
#include "td/utils/crypto.h"
#include "td/utils/port/FileFd.h"
#include "td/utils/Status.h"
namespace td {
class FileHashUploader : public FileLoaderActor {
public:
class Callback {
public:
Callback() = default;
Callback(const Callback &) = delete;
Callback &operator=(const Callback &) = delete;
virtual ~Callback() = default;
virtual void on_ok(const FullRemoteFileLocation &locatioin) = 0;
virtual void on_error(Status status) = 0;
};
FileHashUploader(const FullLocalFileLocation &local, int64 size, std::unique_ptr<Callback> callback)
: local_(local), size_(size), size_left_(size), callback_(std::move(callback)) {
}
void set_resource_manager(ActorShared<ResourceManager> resource_manager) override {
resource_manager_ = std::move(resource_manager);
send_closure(resource_manager_, &ResourceManager::update_resources, resource_state_);
}
void update_priority(int8 priority) override {
send_closure(resource_manager_, &ResourceManager::update_priority, priority);
}
void update_resources(const ResourceState &other) override {
if (stop_flag_) {
return;
}
resource_state_.update_slave(other);
loop();
}
private:
ResourceState resource_state_;
BufferedFd<FileFd> fd_;
FullLocalFileLocation local_;
int64 size_;
int64 size_left_;
unique_ptr<Callback> callback_;
ActorShared<ResourceManager> resource_manager_;
enum class State : int32 { CalcSha, NetRequest, WaitNetResult } state_ = State::CalcSha;
bool stop_flag_ = false;
Sha256State sha256_state_;
void start_up() override;
Status init();
void loop() override;
Status loop_impl();
Status loop_sha();
void on_result(NetQueryPtr net_query) override;
Status on_result_impl(NetQueryPtr net_query);
};
} // namespace td