NAME
lamf_rfopen, lamf_rfclose - Open or close a remote file. (LAM)
SYNOPSIS
subroutine lamf_rfopen (udesc, filename, flags, mode, ierror) character filename*(*) integer udesc, flags, mode, ierror subroutine lamf_rfclose (udesc, ierror) integer udesc, ierror
DESCRIPTION
These functions provide access to underlying POSIX functions, open(2) and close(2), on any LAM node. See lam_rfposix(2).
For convenience, the common POSIX open flags and additional LAM open flags are defined in <FREQ.h>. See CONSTANTS(5) for the precise values. The flags can be added together.
- LAM_O_RDONLY
-
Open for reading only.
- LAM_O_WRONLY
-
Open for writing only.
- LAM_O_RDWR
-
Open for reading and writing.
- LAM_O_APPEND
-
Append on each write.
- LAM_O_CREAT
-
Create the file if it does not exist.
- LAM_O_TRUNC
-
Truncate the file length to 0.
- LAM_O_EXCL
-
Report an error if trying to create an existing file.
- LAM_O_REUSE
-
Reuse existing file descriptor opened with same file name, if possible.