diff options
Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/common/linux/eintr_wrapper.h')
-rw-r--r-- | toolkit/crashreporter/google-breakpad/src/common/linux/eintr_wrapper.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/common/linux/eintr_wrapper.h b/toolkit/crashreporter/google-breakpad/src/common/linux/eintr_wrapper.h new file mode 100644 index 0000000000..3f1d184817 --- /dev/null +++ b/toolkit/crashreporter/google-breakpad/src/common/linux/eintr_wrapper.h @@ -0,0 +1,58 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef COMMON_LINUX_EINTR_WRAPPER_H_ +#define COMMON_LINUX_EINTR_WRAPPER_H_ + +#include <errno.h> + +// This provides a wrapper around system calls which may be interrupted by a +// signal and return EINTR. See man 7 signal. +// + +#define HANDLE_EINTR(x) ({ \ + __typeof__(x) eintr_wrapper_result; \ + do { \ + eintr_wrapper_result = (x); \ + } while (eintr_wrapper_result == -1 && errno == EINTR); \ + eintr_wrapper_result; \ +}) + +#define IGNORE_EINTR(x) ({ \ + __typeof__(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; \ +}) + +#endif // COMMON_LINUX_EINTR_WRAPPER_H_ |