Steam downloader uses flock(LOCK_EX) on files opened O_RDONLY · Issue #6392 · ValveSoftware/steam-for-linux · GitHub
Won't Run on NFS filesystems: file_put_contents(): Exclusive locks are not supported for this stream · Issue #1861 · concretecms/concretecms · GitHub
![Lock and IPC (Inter-Process Communication) (Chap 12, 14 in the book “Advanced Programming in the UNIX Environment”) Acknowledgement : Prof. Y. Moon at. - ppt download Lock and IPC (Inter-Process Communication) (Chap 12, 14 in the book “Advanced Programming in the UNIX Environment”) Acknowledgement : Prof. Y. Moon at. - ppt download](https://slideplayer.com/slide/14168323/86/images/3/Advisory+Locking+%23include+%3Cfcntl.h%3E+int+flock%28int+fd%2C+int+operation%29%3B+Returns%3A+0+if+OK%2C+-1+otherwise..jpg)