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* sysdeps/unix/sysv/linux/bits/waitflags.h

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(WSTOPPED, WEXITED, WCONTINUED, WNOWAIT): New macros.
	* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_WAITID_SYSCALL):
	New macro.
	* sysdeps/unix/sysv/linux/waitid.c: New file.  Use new syscall when
	available, or fall back to the waitpid-based generic code.
This commit is contained in:
Roland McGrath
2004-09-01 19:39:17 +00:00
parent 66cc59de5b
commit 6698501fda
4 changed files with 88 additions and 1 deletions
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8
sysdeps/unix/sysv/linux/bits/waitflags.h
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@ -1,5 +1,5 @@
/* Definitions of flag bits for `waitpid' et al.
Copyright (C) 1992, 1996, 1997, 2000 Free Software Foundation, Inc.
Copyright (C) 1992, 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
@ -26,5 +26,11 @@
#define WNOHANG 1 /* Don't block waiting. */
#define WUNTRACED 2 /* Report status of stopped children. */
/* Bits in the fourth argument to `waitid'. */
#define WSTOPPED 2 /* Report stopped child (same as WUNTRACED). */
#define WEXITED 4 /* Report dead child. */
#define WCONTINUED 8 /* Report continued child. */
#define WNOWAIT 0x01000000 /* Don't reap, just poll status. */
#define __WALL 0x40000000 /* Wait for any child. */
#define __WCLONE 0x80000000 /* Wait for cloned process. */