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 WEXITED 4    // Report dead child
  16 #define WCONTINUED 8 // Report if a stopped child has been resumed by SIGCONT
  17 #define WSTOPPED WUNTRACED
  18
  19 // Wait status info macros
  20 #define __WEXITSTATUS(status) (((status)&0xff00) >> 8)
  21 #define __WTERMSIG(status) ((status)&0x7f)
  22 #define __WIFEXITED(status) (__WTERMSIG(status) == 0)
  23
  24 // Macros for constructing status values.
  25 #define __W_EXITCODE(ret, sig) ((ret) << 8 | (sig))
  26 #define __W_STOPCODE(sig) ((sig) << 8 | 0x7f)
  27 #define __W_CONTINUED 0xffff
  28 #define __WCOREFLAG 0x80
  29
  30 #define WEXITSTATUS(status) __WEXITSTATUS(status)
  31 #define WTERMSIG(status) __WTERMSIG(status)
  32 #define WIFEXITED(status) __WIFEXITED(status)
  33
  34 #define WCOREFLAG __WCOREFLAG
  35 #define W_EXITCODE(ret, sig) __W_EXITCODE(ret, sig)
  36 #define W_STOPCODE(sig) __W_STOPCODE(sig)
  37
  38 // First argument to waitid:
  39 #define P_ALL 0
  40 #define P_PID 1
  41 #define P_PGID 2
  42 #define P_PIDFD 3
  43
  44 #endif // LLVM_LIBC_MACROS_LINUX_SYS_WAIT_MACROS_H