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* posix/tst-waitid.c (do_test): Add tests for waitpid with WCONTINUED.

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* 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.
This commit is contained in:
Roland McGrath
2004-09-28 01:42:49 +00:00
parent c5e2501b0b
commit a044c713b0
6 changed files with 108 additions and 18 deletions
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18
bits/waitstatus.h
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@ -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