| 1 | /* |
| 2 | * Copyright (C) 2011 - David Goulet <dgoulet@efficios.com> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License as published by the Free |
| 6 | * Software Foundation; only version 2 of the License. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along with |
| 14 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
| 15 | * Place - Suite 330, Boston, MA 02111-1307, USA. |
| 16 | */ |
| 17 | |
| 18 | #ifndef _COMPAT_CLONE_H |
| 19 | #define _COMPAT_CLONE_H |
| 20 | |
| 21 | #ifdef __linux__ |
| 22 | |
| 23 | #include <sched.h> |
| 24 | |
| 25 | static inline |
| 26 | pid_t lttng_clone_files(int (*fn)(void *), void *child_stack, void *arg) |
| 27 | { |
| 28 | return clone(fn, child_stack, CLONE_FILES | SIGCHLD, arg); |
| 29 | } |
| 30 | |
| 31 | #elif defined(__FreeBSD__) |
| 32 | |
| 33 | #include <unistd.h> |
| 34 | |
| 35 | static inline |
| 36 | pid_t lttng_clone_files(int (*fn)(void *), void *child_stack, void *arg) |
| 37 | { |
| 38 | pid_t pid; |
| 39 | |
| 40 | pid = rfork(RFPROC | RFTHREAD); |
| 41 | if (pid == 0) { |
| 42 | /* child */ |
| 43 | int ret; |
| 44 | |
| 45 | ret = fn(arg); |
| 46 | exit(ret); |
| 47 | } else if (pid > 0) { |
| 48 | /* parent */ |
| 49 | /* |
| 50 | * Just return, the caller will wait for the child. |
| 51 | */ |
| 52 | return pid; |
| 53 | } else { |
| 54 | /* Error */ |
| 55 | return pid; |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | #else |
| 60 | #error "Please add support for your OS." |
| 61 | #endif /* __linux__ , __FreeBSD__ */ |
| 62 | |
| 63 | #endif /* _COMPAT_CLONE_H */ |