child_process.h

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#pragma once
 
#include <chrono>
#include <cstdint>
#include <expected>
#include <filesystem>
#include <optional>
#include <string>
#include <vector>
 
 
namespace mm::core {
 
struct Child {
  std::int64_t pid = 0;
  std::intptr_t handle = 0;
  std::intptr_t group = 0;
};
 
std::expected<Child, std::string> spawnChild(const std::filesystem::path& binary,
                                             const std::vector<std::string>& args,
                                             const std::filesystem::path& logFile);
 
bool childAlive(const Child& child);
 
bool terminateChild(const Child& child, std::chrono::milliseconds grace);
 
std::optional<int> waitChild(const Child& child, std::chrono::milliseconds timeout);
 
}  // namespace mm::core