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Name	Size	Permission
detail	[ DIR ]	drwxrwxr-x
arguments.hpp	1.43 KB	-rw-rw-r--
drain.hpp	3.36 KB	-rw-rw-r--
env.hpp	1.85 KB	-rw-rw-r--
export.hpp	469 B	-rw-rw-r--
input.hpp	643 B	-rw-rw-r--
reproc.hpp	5.72 KB	-rw-rw-r--
run.hpp	939 B	-rw-rw-r--

Code Editor : env.hpp

#pragma once

#include <reproc++/detail/array.hpp>
#include <reproc++/detail/type_traits.hpp>

namespace reproc {

class env : public detail::array {
public:
  enum type {
    extend,
    empty,
  };

env(const char *const *envp = nullptr) // NOLINT
      : detail::array(envp, false)
  {}

/*!
  `Env` must be iterable as a sequence of string pairs. Examples of
  types that satisfy this requirement are `std::vector<std::pair<std::string,
  std::string>>` and `std::map<std::string, std::string>`.

The pairs in `env` represent the extra environment variables of the child
  process and are converted to the right format before being passed as the
  environment to `reproc_start` via the `env.extra` field of `reproc_options`.
  */
  template <typename Env,
            typename = detail::enable_if_not_char_array<Env>>
  env(const Env &env) // NOLINT
      : detail::array(from(env), true)
  {}

private:
  template <typename Env>
  static const char *const *from(const Env &env);
};

template <typename Env>
const char *const *env::from(const Env &env)
{
  using name_size_type = typename Env::value_type::first_type::size_type;
  using value_size_type = typename Env::value_type::second_type::size_type;

const char **envp = new const char *[env.size() + 1];
  std::size_t current = 0;

for (const auto &entry : env) {
    const auto &name = entry.first;
    const auto &value = entry.second;

// We add 2 to the size to reserve space for the '=' sign and the NUL
    // terminator at the end of the string.
    char *string = new char[name.size() + value.size() + 2];

envp[current++] = string;

for (name_size_type i = 0; i < name.size(); i++) {
      *string++ = name[i];
    }

*string++ = '=';

for (value_size_type i = 0; i < value.size(); i++) {
      *string++ = value[i];
    }

*string = '\0';
  }

envp[current] = nullptr;

return envp;
}

}

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Code Editor : env.hpp

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