diff options
Diffstat (limited to 'nihil.posix/fd.ccm')
| -rw-r--r-- | nihil.posix/fd.ccm | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/nihil.posix/fd.ccm b/nihil.posix/fd.ccm index 7faf2f1..8210b6d 100644 --- a/nihil.posix/fd.ccm +++ b/nihil.posix/fd.ccm @@ -1,24 +1,23 @@ // This source code is released into the public domain. module; -#include <coroutine> -#include <expected> -#include <ranges> -#include <span> -#include <stdexcept> -#include <system_error> - #include <fcntl.h> #include <unistd.h> export module nihil.posix:fd; +import nihil.std; import nihil.flagset; import nihil.error; import nihil.monad; namespace nihil { +// Useful constants +export inline int constexpr stdin_fileno = STDIN_FILENO; +export inline int constexpr stdout_fileno = STDOUT_FILENO; +export inline int constexpr stderr_fileno = STDERR_FILENO; + // F_{GET,SET}FL flags struct fd_flags_tag { @@ -96,7 +95,7 @@ export struct fd final if (ret == 0) return {}; - return std::unexpected(error(std::errc(errno))); + return std::unexpected(error(sys_error())); } // Return the stored fd. @@ -124,7 +123,7 @@ export struct fd final if (ret >= 0) return ret; - return std::unexpected(error(std::errc(errno))); + return std::unexpected(error(sys_error())); } // Read data from the fd to the provided buffer. Returns a @@ -136,7 +135,7 @@ export struct fd final if (ret >= 0) return buffer.subspan(0, ret); - return std::unexpected(error(std::errc(errno))); + return std::unexpected(error(sys_error())); } private: @@ -152,7 +151,7 @@ export [[nodiscard]] auto dup(fd const &self) -> std::expected<fd, error> if (newfd != -1) return fd(newfd); - return std::unexpected(error(std::errc(errno))); + return std::unexpected(error(sys_error())); } // Create a copy of this fd by calling dup2(). Note that because this results @@ -170,7 +169,7 @@ export [[nodiscard]] auto dup(fd const &self, int newfd) -> std::expected<fd, er if (ret != -1) return fd(newfd); - return std::unexpected(error(std::errc(errno))); + return std::unexpected(error(sys_error())); } // Create a copy of this fd by calling dup(). @@ -180,7 +179,7 @@ export [[nodiscard]] auto raw_dup(fd const &self) -> std::expected<int, error> if (newfd != -1) return newfd; - return std::unexpected(error(std::errc(errno))); + return std::unexpected(error(sys_error())); } // Create a copy of this fd by calling dup2(). @@ -190,7 +189,7 @@ export [[nodiscard]] auto raw_dup(fd const &self, int newfd) -> std::expected<in if (ret != -1) return newfd; - return std::unexpected(error(std::errc(errno))); + return std::unexpected(error(sys_error())); } // Call fcntl() on this fd. Prefer one of the type-safe wrappers to this, if available. @@ -199,7 +198,7 @@ export [[nodiscard]] auto fcntl(fd const &fd, int op, int arg = 0) { auto const ret = ::fcntl(fd.get(), op, arg); if (ret == -1) - return std::unexpected(error(std::errc(errno))); + return std::unexpected(error(sys_error())); return ret; } @@ -277,7 +276,7 @@ export [[nodiscard]] auto pipe() -> std::expected<std::pair<fd, fd>, error> auto fds = std::array<int, 2>{}; if (auto const ret = ::pipe(fds.data()); ret != 0) - return std::unexpected(error(std::errc(errno))); + return std::unexpected(error(sys_error())); return {{fd(fds[0]), fd(fds[1])}}; } |