libc/include/llvm-libc-macros/linux/sys-wait-macros.h

   1 //===-- Definition of macros from sys/wait.h ------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef __LLVM_LIBC_MACROS_LINUX_SYS_WAIT_MACROS_H
  10 #define __LLVM_LIBC_MACROS_LINUX_SYS_WAIT_MACROS_H
  11
  12 // Wait flags
  13 #define WNOHANG 1    // Do not block
  14 #define WUNTRACED 2  // Report is a child has stopped even if untraced
  15 #define WCONTINUED 8 // Report if a stopped child has been resumed by SIGCONT
  16
  17 // Wait status info macros
  18 #define WTERMSIG(status) (((status)&0x7F))
  19 #define WIFEXITED(status) (WTERMSIG(status) == 0)
  20 #define WEXITSTATUS(status) (((status)&0xFF00) >> 8)
  21 #define WIFSIGNALED(status)                                                    \
  22   ((WTERMSIG(status) < 0x7F) && (WTERMSIG(status) > 0))
  23
  24 #endif // __LLVM_LIBC_MACROS_LINUX_SYS_WAIT_MACROS_H