Module Lwt_unix.LargeFile
Contents
Instructions: Use this module in your project
In the IDE (CLion, Visual Studio Code, Xcode, etc.) you use for your DkSDK project:
Add the following to your project's
dependencies/CMakeLists.txt
:DkSDKProject_DeclareAvailable(lwt CONSTRAINT "= " FINDLIBS lwt lwt.unix) DkSDKProject_MakeAvailable(lwt)
Add the
Findlib::lwt
library to any desired targets insrc/*/CMakeLists.txt
:target_link_libraries(YourPackage_YourLibraryName # ... existing libraries, if any ... Findlib::lwt)
Click your IDE's
Build
button
Not using DkSDK?
FIRST, do one or all of the following:
Run:
opam install lwt.null
Edit your
dune-project
and add:(package (name YourExistingPackage) (depends ; ... existing dependenices ... (lwt (>= ))))
Then run:
dune build *.opam # if this fails, run: dune build
Edit your
<package>.opam
file and add:depends: [ # ... existing dependencies ... "lwt" {>= ""} ]
Then run:
opam install . --deps-only
FINALLY, add the lwt.unix
library to any desired (library)
and/or (executable)
targets in your **/dune
files:
(library
(name YourLibrary)
; ... existing library options ...
(libraries
; ... existing libraries ...
lwt.unix))
(executable
(name YourExecutable)
; ... existing executable options ...
(libraries
; ... existing libraries ...
lwt.unix))
val
lseek :
file_descr
->
``int64
->
seek_command
->
``int64
Lwt.t
Wrapper for
Unix.LargeFile.lseek
val
truncate : ``string
->
``int64
->
``unit
Lwt.t
Wrapper for
Unix.LargeFile.truncate
val
ftruncate :
file_descr
->
``int64
->
``unit
Lwt.t
Wrapper for
Unix.LargeFile.ftruncate
type
stats`` =
Unix.LargeFile.stats
= ``{
st_dev : int;
st_ino : int;
st_kind :
file_kind
;
st_perm :
file_perm
;
st_nlink : int;
st_uid : int;
st_gid : int;
st_rdev : int;
st_size : int64;
st_atime : float;
st_mtime : float;
st_ctime : float;
}
Wrapper for
Unix.LargeFile.stat
Wrapper for
Unix.LargeFile.lstat
val
fstat :
file_descr
->
stats
Lwt.t
Wrapper for
Unix.LargeFile.fstat
val
file_exists : ``string
->
``bool
Lwt.t
file_exists name
tests if a file named name
exists.
Note that file_exists
behaves similarly to Sys
.file_exists:
-
“file” is interpreted as “directory entry” in this context
-
file_exists name
will returnfalse
in circumstances that would makestat
raise aUnix.Unix_error
exception.