| 1 | /* |
| 2 | * SPDX-License-Identifier: LGPL-2.1-only |
| 3 | * |
| 4 | * Copyright (C) 2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 5 | */ |
| 6 | |
| 7 | #ifndef _UST_COMMON_GETENV_H |
| 8 | #define _UST_COMMON_GETENV_H |
| 9 | |
| 10 | /* |
| 11 | * Always add the lttng-ust environment variables using the lttng_ust_getenv() |
| 12 | * infrastructure rather than using getenv() directly. This ensures that we |
| 13 | * don't trigger races between getenv() invoked by lttng-ust listener threads |
| 14 | * invoked concurrently with setenv() called by an otherwise single-threaded |
| 15 | * application thread. (the application is not aware that it runs with |
| 16 | * lttng-ust) |
| 17 | */ |
| 18 | |
| 19 | char *lttng_ust_getenv(const char *name) |
| 20 | __attribute__((visibility("hidden"))); |
| 21 | |
| 22 | |
| 23 | /* |
| 24 | * Initialize the internal filtered list of environment variables. |
| 25 | */ |
| 26 | void lttng_ust_getenv_init(void) |
| 27 | __attribute__((visibility("hidden"))); |
| 28 | |
| 29 | #endif /* _UST_COMMON_GETENV_H */ |