diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /ipc/chromium/src/base/eintr_wrapper.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | ipc/chromium/src/base/eintr_wrapper.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/ipc/chromium/src/base/eintr_wrapper.h b/ipc/chromium/src/base/eintr_wrapper.h new file mode 100644 index 0000000000..8592efa8ce --- /dev/null +++ b/ipc/chromium/src/base/eintr_wrapper.h @@ -0,0 +1,61 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +// Copyright (c) 2012 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// This provides a wrapper around system calls which may be interrupted by a +// signal and return EINTR. See man 7 signal. +// +// On Windows, this wrapper macro does nothing because there are no +// signals. +// +// Don't wrap close calls in HANDLE_EINTR. Use IGNORE_EINTR if the return +// value of close is significant. See http://crbug.com/269623. + +#ifndef BASE_EINTR_WRAPPER_H_ +#define BASE_EINTR_WRAPPER_H_ + +#if defined(XP_UNIX) + +# include <errno.h> + +# define HANDLE_EINTR(x) \ + ({ \ + decltype(x) eintr_wrapper_result; \ + do { \ + eintr_wrapper_result = (x); \ + } while (eintr_wrapper_result == -1 && errno == EINTR); \ + eintr_wrapper_result; \ + }) + +# define IGNORE_EINTR(x) \ + ({ \ + decltype(x) eintr_wrapper_result; \ + do { \ + eintr_wrapper_result = (x); \ + if (eintr_wrapper_result == -1 && errno == EINTR) { \ + eintr_wrapper_result = 0; \ + } \ + } while (0); \ + eintr_wrapper_result; \ + }) + +# define HANDLE_RV_EINTR(x) \ + ({ \ + decltype(x) eintr_wrapper_result; \ + do { \ + eintr_wrapper_result = (x); \ + } while (eintr_wrapper_result == EINTR); \ + eintr_wrapper_result; \ + }) + +#else + +# define HANDLE_EINTR(x) (x) +# define IGNORE_EINTR(x) (x) +# define HANDLE_RV_EINTR(x) (x) + +#endif // XP_UNIX + +#endif // !BASE_EINTR_WRAPPER_H_ |