| The Android Open Source Project | 10e23ee | 2009-03-03 19:30:30 -0800 | [diff] [blame] | 1 | /** |
| 2 | * @file op_lockfile.h |
| 3 | * PID-based lockfile management |
| 4 | * |
| 5 | * @remark Copyright 2002 OProfile authors |
| 6 | * @remark Read the file COPYING |
| 7 | * |
| 8 | * @author John Levon |
| 9 | * @author Philippe Elie |
| 10 | */ |
| 11 | |
| 12 | #ifndef OP_LOCKFILE_H |
| 13 | #define OP_LOCKFILE_H |
| 14 | |
| 15 | #ifdef __cplusplus |
| 16 | extern "C" { |
| 17 | #endif |
| 18 | |
| 19 | #include <sys/types.h> |
| 20 | |
| 21 | /** |
| 22 | * op_write_lock_file - write a lock file |
| 23 | * \return errno on failure, or 0 on success |
| 24 | * |
| 25 | * Write the pid into the given lock file. Stale |
| 26 | * lock files are detected and reset. |
| 27 | */ |
| 28 | int op_write_lock_file(char const * file); |
| 29 | |
| 30 | #ifdef __cplusplus |
| 31 | } |
| 32 | #endif |
| 33 | |
| 34 | #endif /* OP_LOCKFILE_H */ |