control_carrier.hpp

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#pragma once
 
#include <cstdint>
#include <filesystem>
#include <optional>
 
namespace pulp::inspect {

struct ControlEndpointIdentity {
    std::uint64_t device = 0;
    std::uint64_t inode = 0;
 
    friend bool operator==(const ControlEndpointIdentity&,
                           const ControlEndpointIdentity&) = default;
};

std::filesystem::path default_control_runtime_directory();

std::filesystem::path default_control_runtime_directory(const std::filesystem::path& runtime_root);

std::filesystem::path default_control_endpoint_path();
std::filesystem::path default_control_endpoint_path(const std::filesystem::path& runtime_root);

bool prepare_control_runtime_directory(const std::filesystem::path& runtime_directory);

std::optional<ControlEndpointIdentity>
control_endpoint_identity(const std::filesystem::path& endpoint_path);

bool remove_stale_control_endpoint(const std::filesystem::path& endpoint_path,
                                   const ControlEndpointIdentity& expected_identity);

bool remove_stale_control_endpoint(const std::filesystem::path& endpoint_path);
 
} // namespace pulp::inspect