diff options
Diffstat (limited to 'sysdeps/unix/sysv/sysv4/waitpid.c')
| -rw-r--r-- | sysdeps/unix/sysv/sysv4/waitpid.c | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/sysdeps/unix/sysv/sysv4/waitpid.c b/sysdeps/unix/sysv/sysv4/waitpid.c deleted file mode 100644 index 23f9ceb029..0000000000 --- a/sysdeps/unix/sysv/sysv4/waitpid.c +++ /dev/null @@ -1,120 +0,0 @@ -/* Copyright (C) 1993,94,95,96,97,2002,2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Brendan Kehoe (brendan@zen.org). - - 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 <errno.h> -#include <sys/wait.h> -#include <sys/types.h> -#include <stddef.h> -#include "siginfo.h" - -typedef enum __idtype - { - /* Look for processes based upon a given PID. */ - P_PID, - - /* Look for processes based upon a given process-group ID. */ - P_PGID = 2, - - /* Look for any process. */ - P_ALL = 7, - } __idtype_t; - -extern __pid_t __getpgid (__pid_t pid); -extern int __waitid (__idtype_t idtype, __pid_t id, - __siginfo_t *infop, int options); - -/* Wait for a child matching PID to die. - If PID is greater than 0, match any process whose process ID is PID. - If PID is (pid_t) -1, match any process. - If PID is (pid_t) 0, match any process with the - same process group as the current process. - If PID is less than -1, match any process whose - process group is the absolute value of PID. - If the WNOHANG bit is set in OPTIONS, and that child - is not already dead, return (pid_t) 0. If successful, - return PID and store the dead child's status in STAT_LOC. - Return (pid_t) -1 for errors. If the WUNTRACED bit is set in OPTIONS, - return status for stopped children; otherwise don't. */ - -__pid_t -__libc_waitpid (__pid_t pid, int *stat_loc, int options) -{ - __idtype_t idtype; - __pid_t tmp_pid = pid; - __siginfo_t infop; - - if (pid <= WAIT_MYPGRP) - { - if (pid == WAIT_ANY) - { - /* Request the status for any child. */ - idtype = P_ALL; - } - else if (pid == WAIT_MYPGRP) - { - /* Request the status for any child process that has - a pgid that's equal to that of our parent. */ - tmp_pid = __getpgid (0); - idtype = P_PGID; - } - else /* PID < -1 */ - { - /* Request the status for any child whose pgid is equal - to the absolute value of PID. */ - tmp_pid = pid & ~0; /* XXX not pseudo-insn */ - idtype = P_PGID; - } - } - else - { - /* Request the status for the child whose pid is PID. */ - idtype = P_PID; - } - - if (__waitid (idtype, tmp_pid, &infop, options | WEXITED | WTRAPPED) < 0) - return -1; - - switch (infop.__code) - { - case EXITED: - *stat_loc = W_EXITCODE (infop.__status, 0); - break; - case STOPPED: - case TRAPPED: - *stat_loc = W_STOPCODE (infop.__status); - break; - case KILLED: - /* Don't know what to do with continue, since it isn't documented. - Putting it here seemed the right place though. */ - case CONTINUED: - *stat_loc = infop.__status; - /* FALLTHROUGH */ - case CORED: - *stat_loc |= WCOREFLAG; - break; - } - - /* Return the PID out of the INFOP structure instead of the one we were - called with, to account for cases of being called with -1 to signify - any PID. */ - return infop.__pid; -} -weak_alias (__libc_waitpid, __waitpid) -weak_alias (__libc_waitpid, waitpid) -libc_hidden_weak (__waitpid) |