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9683569f25
OpenBSD 7.8 snapshots hide the type information for FILE. Therefore, the types for the standard stdio streams should (regrettably) be OpaquePointer, due to the well-discussed issue of losing type information for forward-declared C types. We explicitly drop to void * in the LibcOverlayShims for backwards compatibility, since OpenBSD 7.8 is not yet released.
142 lines
3.7 KiB
C++
142 lines
3.7 KiB
C++
//===--- LibcOverlayShims.h - Static inline shims for POSIX functions. --*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Provide small wrappers for POSIX functionality that can't be used
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// directly from Swift due to varargs or other issues.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_STDLIB_SHIMS_LIBCOVERLAYSHIMS_H
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#define SWIFT_STDLIB_SHIMS_LIBCOVERLAYSHIMS_H
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#include "Visibility.h"
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#if defined(__OpenBSD__)
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#include <stdio.h>
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#endif
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#if defined(_WIN32) && !defined(__CYGWIN__)
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#include <errno.h>
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#include <io.h>
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typedef int mode_t;
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#else
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#include <semaphore.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#endif
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#include <errno.h>
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#include <fcntl.h>
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#if __has_feature(nullability)
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#pragma clang assume_nonnull begin
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#endif
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// File control <fcntl.h>
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#if !defined(_WIN32) || defined(__CYGWIN__)
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static inline int _swift_stdlib_fcntl(int fd, int cmd, int value) {
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return fcntl(fd, cmd, value);
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}
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static inline int _swift_stdlib_fcntlPtr(int fd, int cmd, void* ptr) {
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return fcntl(fd, cmd, ptr);
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}
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#endif
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// Environment
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#if SWIFT_STDLIB_HAS_ENVIRON
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#if defined(__FreeBSD__) || defined(__OpenBSD__)
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static inline char * _Nullable * _Null_unspecified _swift_stdlib_getEnviron() {
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extern char **environ;
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return environ;
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}
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#elif defined(__APPLE__)
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static inline char * _Nullable * _Null_unspecified _swift_stdlib_getEnviron() {
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extern char * _Nullable **_NSGetEnviron(void);
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return *_NSGetEnviron();
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}
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#endif
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#endif // SWIFT_STDLIB_HAS_ENVIRON
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// System error numbers <errno.h>
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static inline int _swift_stdlib_getErrno() {
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return errno;
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}
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static inline void _swift_stdlib_setErrno(int value) {
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errno = value;
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}
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// Semaphores <semaphore.h>
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#if (!defined(_WIN32) && !defined(__wasi__)) || defined(__CYGWIN__)
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static inline sem_t *_stdlib_sem_open2(const char *name, int oflag) {
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return sem_open(name, oflag);
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}
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static inline sem_t *_stdlib_sem_open4(const char *name, int oflag,
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mode_t mode, unsigned int value) {
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return sem_open(name, oflag, mode, value);
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}
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#endif // !(defined(_WIN32) && !defined(__CYGWIN__))
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// I/O control <ioctl.h>
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#if !defined(_WIN32) || defined(__CYGWIN__)
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static inline int _swift_stdlib_ioctl(int fd, unsigned long int request, int value) {
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return ioctl(fd, request, value);
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}
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static inline int _swift_stdlib_ioctlPtr(int fd, unsigned long int request, void* ptr) {
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return ioctl(fd, request, ptr);
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}
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#endif
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#if defined(_WIN32) && !defined(__CYGWIN__)
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// Windows
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static inline int _swift_stdlib_open(const char *path, int oflag, mode_t mode) {
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int fh;
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errno_t err = _sopen_s(&fh, path, oflag, _SH_DENYNO, mode);
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__assume(err == 0 || fh == -1);
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return fh;
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}
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#else
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// not Windows
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int static inline _swift_stdlib_open(const char *path, int oflag, mode_t mode) {
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return open(path, oflag, mode);
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}
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int static inline _swift_stdlib_openat(int fd, const char *path, int oflag,
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mode_t mode) {
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return openat(fd, path, oflag, mode);
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}
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#endif
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#if defined(__OpenBSD__)
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static inline void *_swift_stdlib_stdin(void) {
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return stdin;
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}
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static inline void *_swift_stdlib_stdout(void) {
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return stdout;
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}
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static inline void *_swift_stdlib_stderr(void) {
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return stderr;
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}
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#endif
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#if __has_feature(nullability)
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#pragma clang assume_nonnull end
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#endif
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#endif // SWIFT_STDLIB_SHIMS_LIBCOVERLAYSHIMS_H
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