/sys$common/syshlp/helplib.hlb RTL Routines, LIB$, LIB$FIND_FILE, Arguments *Conan The Librarian (sorry for the slow response - running on an old VAX) |
filespec OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor File specification, which may contain wildcards, that LIB$FIND_ FILE uses to search for the desired file. The filespec argument is the address of a descriptor pointing to the file specification. If running on Alpha and flag LIB$M_FIL_LONG_ NAMES is set, the maximum length of a file specification is specified by NAML$C_MAXRSS, otherwise the maximum length of a file specification is 255 bytes. The file specification used may also contain a search list logical name. If present, the search list logical name elements can be used as accumulative to related file specifications, so that portions of file specifications not specified by the user are inherited from previous file specifications. resultant-filespec OpenVMS usage:char_string type: character string access: modify mechanism: by descriptor Resultant file specification that LIB$FIND_FILE returns when it finds a file that matches the specification in the filespec argument. The resultant-filespec argument is the address of a descriptor pointing to the resultant file specification. context OpenVMS usage:context type: longword (unsigned) access: modify mechanism: by reference A longword integer variable into which the routine stores a context value for use by future calls to LIB$FIND_FILE or LIB$FIND_FILE_END. The context argument is an unsigned longword integer containing the address of the context. This variable must be set to zero before the first call to LIB$FIND_FILE. You can use the same context argument from one LIB$FIND_FILE call to another provided you have not called LIB$FIND_FILE_END for that context first. LIB$FIND_FILE uses this argument to retain the context when processing multiple input files. Portions of file specifications that the user does not specify may be inherited from the last files processed because the file contexts are retained in this argument. You must not change the value of context in subsequent calls to LIB$FIND_FILE. default-filespec OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Default file specification. The default-filespec argument is the address of a descriptor pointing to the default file specification. See the OpenVMS Record Management Services Reference Manual for information about default file specifications. related-filespec OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Related file specification containing the context of the last file processed. The related-filespec argument is the address of a descriptor pointing to the related file specification. The related file specification is useful when you are processing lists of file specifications. Unspecified portions of the file specification are inherited from the last file processed. For more information on related file specifications, see the OpenVMS Record Management Services Reference Manual. status-value OpenVMS usage:longword_unsigned type: longword (unsigned) access: write only mechanism: by reference RMS secondary status value from a failing RMS operation. The status-value argument is an unsigned longword containing the address of a longword-length buffer to receive the RMS secondary status value (usually returned in the file access block field, FAB$L_STV). flags OpenVMS usage:mask_longword type: longword (unsigned) access: read only mechanism: by reference User flags. The flags argument is the address of an unsigned longword containing the user flags. The flag bits and their corresponding symbols are described in the following table: Bit Symbol Description 0 LIB$M_FIL_NOWILD If set, LIB$FIND_FILE returns an error if a wildcard character is input. 1 LIB$M_FIL_ If set, this performs temporary MULTIPLE defaulting for multiple input files and the related-filespec argument is ignored. See description of context in LIB$FILE_SCAN. Each time LIB$FIND_ FILE is called with a different file specification, the specification from the previous call is automatically used as a related file specification. This allows parsing of the elements of a search- list logical name such as DISK2:[SMITH] FIL1.TYP,FIL*2.TYP, and so on. Use of this feature is required to get the desired defaulting with search list logical name. LIB$FIND_FILE_END must be called between each command line in interactive use or the defaults from the previous command line affect the current file specification. 2 LIB$M_FIL_LONG_ (Alpha only) If set, LIB$FIND_FILE NAMES can process file specifications with a maximum length of NAML$C_MAXRSS. If clear, LIB$FIND_FILE can process file specifications with a maximum length of 255 (default).
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