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/*
* This source code is released into the public domain.
*/
module;
/*
* Exec providers, mostly used for spawn().
*/
#include <expected>
#include <string>
#include "nihil.hh"
export module nihil.posix:exec;
import nihil.error;
import :execv;
import :fexecv;
import :argv;
import :fd;
namespace nihil {
/*
* The lowest-level executor type, which is returned by other executors.
* Prefer fexecve() if it's available, otherwise use execve().
*/
#ifdef NIHIL_HAVE_FEXECVE
using base_executor_type = fexecv;
#else
using base_executor_type = execv;
#endif
/*
* execl: equivalent to execv, except the arguments are passed as a
* variadic pack of string-like objects.
*/
export [[nodiscard]] auto execl(std::string_view path, auto &&...args)
-> std::expected<base_executor_type, error>
{
return execv(path, argv({std::string_view(args)...}));
}
/*
* shell: run the process by invoking /bin/sh -c with the single argument,
* equivalent to system(3).
*/
export [[nodiscard]] auto shell(std::string_view const &command)
-> std::expected<base_executor_type, error>;
} // namespace nihil
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