| 1 | #ifndef _COMPAT_GETENV_H |
| 2 | #define _COMPAT_GETENV_H |
| 3 | |
| 4 | /* |
| 5 | * Copyright (C) 2015 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 6 | * |
| 7 | * This library is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; only |
| 10 | * version 2.1 of the License. |
| 11 | * |
| 12 | * This library is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with this library; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | /* |
| 23 | * Always add the lttng-ust environment variables to lttng_getenv() |
| 24 | * infrastructure rather than using getenv() directly from lttng-ust. |
| 25 | * This ensures that we don't trigger races between getenv() invoked by |
| 26 | * lttng-ust listener threads invoked concurrently with setenv() called |
| 27 | * by an otherwise single-threaded application thread. (the application |
| 28 | * is not aware that it runs with lttng-ust) |
| 29 | */ |
| 30 | |
| 31 | char *lttng_getenv(const char *name); |
| 32 | |
| 33 | void lttng_ust_getenv_init(void); |
| 34 | |
| 35 | #endif /* _COMPAT_GETENV_H */ |