host_discovery.h

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#pragma once
 
// standard includes
#include <cstdint>
#include <functional>
#include <string>
#include <vector>
 
namespace network {
 
  struct DiscoveredHost {
    std::string displayName;  
    std::string address;  
    uint16_t port = 0;  
  };
 
  struct DiscoverHostsResult {
    std::vector<DiscoveredHost> hosts;  
    std::string errorMessage;  
  };
 
  DiscoverHostsResult discover_hosts(uint32_t timeoutMilliseconds);
 
  namespace testing {
 
    using HostDiscoveryTestHandler = std::function<DiscoverHostsResult(uint32_t timeoutMilliseconds)>;
 
    void set_host_discovery_test_handler(HostDiscoveryTestHandler handler);
 
    void clear_host_discovery_test_handler();
 
  }  // namespace testing
 
}  // namespace network