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Cygwin: Remove union wait

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This patch follows glibc.  Original commit message:

Author:	Florian Weimer <fweimer@redhat.com>
Date:   Thu, 14 Apr 2016 06:54:57 +0000

Remove union wait [BZ #19613]

The overloading approach in the W* macros was incompatible with
integer expressions of a type different from int.  Applications
using union wait and these macros will have to migrate to the
POSIX-specified int status type.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2018-08-24 20:57:47 +02:00
parent d13c84eb07
commit 6706b19a97
4 changed files with 23 additions and 82 deletions
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21
winsup/cygwin/include/cygwin/wait.h
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@ -17,9 +17,6 @@ details. */
#define WCONTINUED 8
#define __W_CONTINUED 0xffff
/* Will be redefined in sys/wait.h. */
#define __wait_status_to_int(w) (w)
/* A status is 16 bits, and looks like:
<1 byte info> <1 byte code>
@ -29,14 +26,14 @@ details. */
<code> == 80, there was a core dump.
*/
#define WIFEXITED(w) ((__wait_status_to_int(w) & 0xff) == 0)
#define WIFSIGNALED(w) ((__wait_status_to_int(w) & 0x7f) > 0 \
&& ((__wait_status_to_int(w) & 0x7f) < 0x7f))
#define WIFSTOPPED(w) ((__wait_status_to_int(w) & 0xff) == 0x7f)
#define WIFCONTINUED(w) ((__wait_status_to_int(w) & 0xffff) == __W_CONTINUED)
#define WEXITSTATUS(w) ((__wait_status_to_int(w) >> 8) & 0xff)
#define WTERMSIG(w) (__wait_status_to_int(w) & 0x7f)
#define WSTOPSIG WEXITSTATUS
#define WCOREDUMP(w) (WIFSIGNALED(w) && (__wait_status_to_int(w) & 0x80))
#define WIFEXITED(_w) (((_w) & 0xff) == 0)
#define WIFSIGNALED(_w) (((_w) & 0x7f) > 0 \
&& (((_w) & 0x7f) < 0x7f))
#define WIFSTOPPED(_w) (((_w) & 0xff) == 0x7f)
#define WIFCONTINUED(_w) (((_w) & 0xffff) == __W_CONTINUED)
#define WEXITSTATUS(_w) (((_w) >> 8) & 0xff)
#define WTERMSIG(_w) ((_w) & 0x7f)
#define WSTOPSIG WEXITSTATUS
#define WCOREDUMP(_w) (WIFSIGNALED(_w) && ((_w) & 0x80))
#endif /* _CYGWIN_WAIT_H */