mmap-open ( path length prot flags open-mode -- alien fd )

Vocabulary

io.mmap.unix

Inputs

path	an object
length	an object
prot	an object
flags	an object
open-mode	an object

Outputs

alien	an object
fd	an object

Definition

USING: destructors io.backend.unix kernel libc unix unix.ffi ;

IN: io.mmap.unix

:: mmap-open
    ( path length prot flags open-mode -- alien fd )
    [
        f length prot flags path open-mode file-mode open-file
        [ <fd> |dispose drop ] keep
        [ 0 mmap dup MAP_FAILED = [ throw-errno ] when ] keep
    ] with-destructors ;