| 47 | } |
| 48 | |
| 49 | cmFileLockResult cmFileLock::LockWithTimeout(unsigned long seconds) |
| 50 | { |
| 51 | while (true) { |
| 52 | if (this->LockFile(F_SETLK, F_WRLCK) == -1) { |
| 53 | if (errno != EACCES && errno != EAGAIN) { |
| 54 | return cmFileLockResult::MakeSystem(); |
| 55 | } |
| 56 | } else { |
| 57 | return cmFileLockResult::MakeOk(); |
| 58 | } |
| 59 | if (seconds == 0) { |
| 60 | return cmFileLockResult::MakeTimeout(); |
| 61 | } |
| 62 | --seconds; |
| 63 | cmSystemTools::Delay(1000); |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | int cmFileLock::LockFile(int cmd, int type) const |
| 68 | { |