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Thu Mar 28 14:22:51 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>

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* sysdeps/mach/hurd/kill.c: If proc_pid2task gives us MACH_PORT_NULL
	the process is a zombie; send no messages and return success.
This commit is contained in:
Roland McGrath 1996-03-28 19:30:33 +00:00
parent 43efc10333
commit 8c1442d02f
2 changed files with 16 additions and 3 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Thu Mar 28 14:22:51 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* sysdeps/mach/hurd/kill.c: If proc_pid2task gives us MACH_PORT_NULL
the process is a zombie; send no messages and return success.
Thu Mar 28 11:53:26 1996 Roland McGrath <roland@whiz-bang.gnu.ai.mit.edu>
* wctype/cname-lookup.h: Find localeinfo.h in ../locale.

12
sysdeps/mach/hurd/kill.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
/* Copyright (C) 1991, 92, 93, 94, 95, 96 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
@ -50,7 +50,8 @@ __kill (pid_t pid, int sig)
{
task_t refport;
err = __proc_pid2task (proc, pid, &refport);
if (!err)
/* Ignore zombies. */
if (!err && refport != MACH_PORT_NULL)
{
err = __task_terminate (refport);
__mach_port_deallocate (__mach_task_self (), refport);
@ -73,6 +74,12 @@ __kill (pid_t pid, int sig)
/* If we could not get the task port, we can do nothing. */
return taskerr;
if (refport == MACH_PORT_NULL)
/* proc_pid2task returned success with a null task port.
That means the process is a zombie. Signals
to zombies should return success and do nothing. */
return 0;
/* For user convenience in the case of a task that has
not registered any message port with the proc server,
translate a few signals to direct task operations. */
@ -85,6 +92,7 @@ __kill (pid_t pid, int sig)
return __task_suspend (refport);
case SIGCONT:
return __task_resume (refport);
case SIGTERM:
case SIGQUIT:
case SIGINT:
return __task_terminate (refport);