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/* Copyright (C) 1991,92,95,96,97,2002,2003 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
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep-cancel.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <unistd.h>
#include <not-cancel.h>
#include <stdio.h>
__pid_t
__waitpid_not_cancel (__pid_t pid, int *stat_loc, int options)
{
int res;
siginfo_t info;
/* wait until the child dies */
options |= WEXITED | WTRAPPED;
/* implement waitpid by calling waitid */
if (pid < -1)
res = waitid_not_cancel (P_PGID, -pid, &info, options);
else if (pid == -1)
res = waitid_not_cancel (P_ALL, 0, &info, options);
else if (pid == 0)
res = waitid_not_cancel (P_PGID, getpgid(0), &info, options);
else /* if(pid > 0) */
res = waitid_not_cancel (P_PID, pid, &info, options);
if (res == -1)
return -1;
/* use info.si_code and info.si_status to set stat_loc */
if (stat_loc)
{
switch (info.si_code)
{
case CLD_EXITED:
*stat_loc = (info.si_status & 0xff) << 8;
break;
case CLD_KILLED:
*stat_loc = (info.si_status & 0x7f);
break;
case CLD_DUMPED:
*stat_loc = (info.si_status & 0x7f) | WCOREFLG;
break;
case CLD_TRAPPED:
case CLD_STOPPED:
*stat_loc = ((info.si_status & 0xff) << 8) | WSTOPFLG;
break;
case CLD_CONTINUED:
*stat_loc = WCONTFLG;
break;
}
}
return info.si_pid;
}
__pid_t
__libc_waitpid (__pid_t pid, int *stat_loc, int options)
{
if (SINGLE_THREAD_P)
return __waitpid_not_cancel (pid, stat_loc, options);
int oldtype = LIBC_CANCEL_ASYNC ();
__pid_t res = __waitpid_not_cancel (pid, stat_loc, options);
LIBC_CANCEL_RESET (oldtype);
return res;
}
weak_alias (__libc_waitpid, __waitpid)
libc_hidden_weak (__waitpid)
weak_alias (__libc_waitpid, waitpid)
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