root/trunk/lib_internal/command-wait.c
| Revision 1618, 1.2 kB (checked in by ensc, 4 years ago) | |
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| 1 | // $Id$ --*- c -*-- |
| 2 | |
| 3 | // Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de> |
| 4 | // |
| 5 | // This program is free software; you can redistribute it and/or modify |
| 6 | // it under the terms of the GNU General Public License as published by |
| 7 | // the Free Software Foundation; version 2 of the License. |
| 8 | // |
| 9 | // This program is distributed in the hope that it will be useful, |
| 10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | // GNU General Public License for more details. |
| 13 | // |
| 14 | // You should have received a copy of the GNU General Public License |
| 15 | // along with this program; if not, write to the Free Software |
| 16 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | |
| 18 | |
| 19 | #ifdef HAVE_CONFIG_H |
| 20 | # include <config.h> |
| 21 | #endif |
| 22 | |
| 23 | #include "command.h" |
| 24 | #include <errno.h> |
| 25 | |
| 26 | bool |
| 27 | Command_wait(struct Command *cmd, bool do_block) |
| 28 | { |
| 29 | int rc; |
| 30 | |
| 31 | if (cmd->rc!=-1) return true; |
| 32 | |
| 33 | switch (wait4(cmd->pid, &rc, (!do_block ? WNOHANG : 0), &cmd->rusage)) { |
| 34 | case 0 : break; |
| 35 | case -1 : cmd->err = errno; break; |
| 36 | default : cmd->rc = rc; return true; |
| 37 | } |
| 38 | |
| 39 | return false; |
| 40 | } |
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