RMS

Record Management Services (RMS) are a set of system services that assist application programs in processing and managing files and their contents.

List

The following are OpenVMS record management services:

Name	Description
File Processing and File Naming Macros
SYS$CLOSE	Terminates file processing and disconnects all record streams previously associated with the file
SYS$CREATE	Creates and opens a new file
SYS$DISPLAY	Returns the opened file’s attributes to the application program
SYS$ENTER	Enters a file name into a directory
SYS$ERASE	Deletes a file and removes its directory entry
SYS$EXTEND	Allocates additional space to a file
SYS$OPEN	Opens an existing file and initiates file processing
SYS$PARSE	Parses a file specification
SYS$REMOVE	Removes a file name from a directory but does not actually delete the file data; compare this with the $ERASE macro
SYS$RENAME	Assigns a new name to (renames) a file
SYS$SEARCH	Searches a directory, or possibly multiple directories, for a file name
Record Processing Macros
SYS$CONNECT	Establishes a record stream by associating a RAB with an open file SYS$DELETE $DELETE Deletes a record from a relative or indexed file
SYS$DISCONNECT	Terminates a record stream by disconnecting a RAB from an open file SYS$FIND $FIND Locates the specified record, establishes it as the current record and returns the record’s RFA to the application program SYS$FLUSH $FLUSH Writes (flushes) modified I/O buffers and file attributes to the disk before closing a file
SYS$FREE	Unlocks all records previously locked by the record stream
SYS$GET	Retrieves a record from a file
SYS$NXTVOL	Causes processing of a magnetic tape file to continue to the next volume of a volume set
SYS$PUT	Writes a new record to a file
SYS$RELEASE	Unlocks a record pointed to by the contents of the RAB$W_RFA field
SYS$REWIND	Establishes the first file record as the current record
SYS$TRUNCATE	Truncates a sequential file
SYS$UPDATE	Deletes and rewrites (updates) an existing file record
SYS$WAIT	Awaits the completion of an asynchronous record operation
Block I/O Processing Macros
SYS$READ	Retrieves a specified number of bytes from a file, beginning on block boundaries
SYS$SPACE	Positions forward or backward in a file to a block boundary
SYS$WRITE	Writes a specified number of bytes to a file, beginning on block boundaries

See also

• Record Management Services Reference Manual