**CIGAL Reference Manual, Chapter 6 (RealTime): r_fclose**
===== r_fclose -- Close an open file =====
**usage: r_fclose   opflg eflag ltime    Lunit   Asyncflag**

R_FCLOSE is a REALTIME operator.  It closes a file that has been previously
opened by a call to R_FOPEN.  If ASYNCFLAG is specified and non-zero this
command starts the operation and returns without waiting for completion;
the default is to wait until the entire operation has completed.

Note 1: If LUNIT is not an open file this operation returns immediately. If a previous asynchronous I/O operation was still pending, this operation will wait until that has completed before starting. This is therefore an automatic way to call a R_FWAIT operation.

Note 2: Although this operator appears to function synchronously, it actually involves asynchronous file operations; this allows other REALTIME processing streams to continue while R_FCLOSE awaits completion.

**See Also:**\\
[[jvs:cigal|CIGAL Home]], 
[[jvs:cigal:manual|CIGAL Manual]], 
[[jvs:cigal:manual:chapter6|RealTime List]], 
[[jvs:cigal:manual:help|Manual Help]]