SYS$ENQW (OpenVMS) SYS$ENQW (OpenVMS)
NAME
fcntl - control open file descriptors
SYS$ENQW - Queue lock request and wait
EXPLAINATION
The Digital UNIX fcntl system call provides functionality similar to
the OpenVMS SYS$ENQW system service in that it allows the calling func‐
tion to enqueue a lock on a portion of a file and block until that lock
is ready. The system call will also unblock and return an error if a
signal arrives during the fcntl call.
RELATED INFORMATION
Digital UNIX Functions:
fcntl(2), open(2), lockf(3) delim off
SYS$ENQW (OpenVMS)
