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| author |   Roland McGrath <roland@gnu.org> | 2004-09-28 01:42:49 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2004-09-28 01:42:49 +0000 |
| commit | a044c713b054695326df96e7710dd5c8f80ad8c2 (patch) | |
| tree | d1a0d23700e585670175a522246f43ed88fcca66 /bits/waitstatus.h | |
| parent | * sysdeps/unix/sysv/linux/waitid.c (do_waitid): Add fifth argument to (diff) | |
| download | glibc-a044c713b054695326df96e7710dd5c8f80ad8c2.tar.gz glibc-a044c713b054695326df96e7710dd5c8f80ad8c2.tar.bz2 glibc-a044c713b054695326df96e7710dd5c8f80ad8c2.zip | |
* posix/tst-waitid.c (do_test): Add tests for waitpid with WCONTINUED.
* posix/sys/wait.h [__WIFCONTINUED] (WIFCONTINUED): New macro.
* stdlib/stdlib.h [__WIFCONTINUED] (WIFCONTINUED): New macro.
* sysdeps/generic/bits/waitstatus.h (__W_CONTINUED): New macro.
[WCONTINUED] (__WIFCONTINUED): New macro.
(__WIFSIGNALED): Rewritten to exclude __W_CONTINUED value, and have no
branches.
Diffstat (limited to 'bits/waitstatus.h')
| -rw-r--r-- | bits/waitstatus.h | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/bits/waitstatus.h b/bits/waitstatus.h index 982c9dbb28..98da41858e 100644 --- a/bits/waitstatus.h +++ b/bits/waitstatus.h @@ -1,5 +1,5 @@ /* Definitions of status bits for `wait' et al. - Copyright (C) 1992, 1994, 1996, 1997, 2000 Free Software Foundation, Inc. + Copyright (C) 1992,1994,1996,1997,2000,2004 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -38,23 +38,25 @@ #define __WIFEXITED(status) (__WTERMSIG(status) == 0) /* Nonzero if STATUS indicates termination by a signal. */ -#ifdef __GNUC__ -# define __WIFSIGNALED(status) \ - (__extension__ ({ int __status = (status); \ - !__WIFSTOPPED(__status) && !__WIFEXITED(__status); })) -#else /* Not GCC. */ -# define __WIFSIGNALED(status) (!__WIFSTOPPED(status) && !__WIFEXITED(status)) -#endif /* GCC. */ +#define __WIFSIGNALED(status) \ + (((signed char) ((((((status) + 1) & 0xffff) - 1) & 0x7f) + 1) >> 1) > 0) /* Nonzero if STATUS indicates the child is stopped. */ #define __WIFSTOPPED(status) (((status) & 0xff) == 0x7f) +/* Nonzero if STATUS indicates the child continued after a stop. We only + define this if <bits/waitflags.h> provides the WCONTINUED flag bit. */ +#ifdef WCONTINUED +# define __WIFCONTINUED(status) ((status) == __W_CONTINUED) +#endif + /* Nonzero if STATUS indicates the child dumped core. */ #define __WCOREDUMP(status) ((status) & __WCOREFLAG) /* Macros for constructing status values. */ #define __W_EXITCODE(ret, sig) ((ret) << 8 | (sig)) #define __W_STOPCODE(sig) ((sig) << 8 | 0x7f) +#define __W_CONTINUED 0xffff #define __WCOREFLAG 0x80 |