| #ifndef _SYS_FILE_H | |
| #define _SYS_FILE_H | |
| #ifdef __cplusplus | |
| extern "C" { | |
| #endif | |
| #define LOCK_SH 1 | |
| #define LOCK_EX 2 | |
| #define LOCK_NB 4 | |
| #define LOCK_UN 8 | |
| #define L_SET 0 | |
| #define L_INCR 1 | |
| #define L_XTND 2 | |
| int flock(int, int); | |
| #ifdef __cplusplus | |
| } | |
| #endif | |
| #endif |