package ctypes

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Combinators for binding to C libraries without writing any C

Install

Dune Dependency

github.com Readme Changelog MIT License Edit opam file Versions (53)

Authors

J

Jeremy Yallop

Maintainers

J

Jeremy Yallop <yallop@gmail.com>

Sources

0.22.0.tar.gz

md5=8a301a3e3b79156448a6659859ad506c

CHANGES.md.html

ctypes 0.22.0

Support for OCaml 5.2.0
https://github.com/ocamllabs/ocaml-ctypes/pull/764

Thanks to Nick Roberts (@ncik-roberts) and Danny Willems (@dannywillems) for contributions to this release.

ctypes 0.21.1

Add missing version information to dune-project

ctypes 0.21.0

Switch to dune
https://github.com/yallop/ocaml-ctypes/pull/588

Thanks to Anil Madhavapeddy (@avsm) and Etienne Millon (@emillon) for contributing to this release.

ctypes 0.20.2

Restore compilation of cmxs for 5.0
https://github.com/ocamllabs/ocaml-ctypes/pull/727
Update build rules to make .o files a dependency of cmxs
https://github.com/ocamllabs/ocaml-ctypes/pull/723
update CArray.of_string comment to accurately reflect the length
https://github.com/ocamllabs/ocaml-ctypes/pull/716

Thanks to @houseofsuns, @ygrek, Alpha Diallo (@moyodiallo), François Bobot (@bobot) and Alfredo Tupone (@atupone) for contributions to this release.

ctypes 0.20.1

Fix warning 9 [missing-record-field-pattern] in generated OCaml code
https://github.com/ocamllabs/ocaml-ctypes/pull/700

Thanks to Antonin Décimo (@MisterDA) for contributing to this release.

ctypes 0.20.0

Remove naked pointers from the Dl library
https://github.com/ocamllabs/ocaml-ctypes/pull/681
Avoid running a full GC cycle on every FFI closure allocation
https://github.com/ocamllabs/ocaml-ctypes/pull/694
Check output of brew ls --versions when detecting homebrew
https://github.com/ocamllabs/ocaml-ctypes/pull/697

Thanks to Martin Kletzander (@nertpinx) and Arseniy Alekseyev (@aalekseyev) for contributions to this release.

ctypes 0.19.1

Fix use of CAMLdrop in generated code
https://github.com/ocamllabs/ocaml-ctypes/pull/680

ctypes 0.19.0

Drop compatibility with 4.02, and improve compatibility with Multicore OCaml
https://github.com/ocamllabs/ocaml-ctypes/pull/673

Thanks to Kate Deplaix (@kit-ty-kate) for contributing to this release.

ctypes 0.18.0

Remove the Unix dependency by using bigarray-compat
https://github.com/ocamllabs/ocaml-ctypes/pull/660
Remove the threaded/unthreaded split in ctypes-foreign
https://github.com/ocamllabs/ocaml-ctypes/pull/651
Eliminate some const warnings in generated code
https://github.com/ocamllabs/ocaml-ctypes/pull/646
https://github.com/ocamllabs/ocaml-ctypes/pull/638
Speed-up CArray.make with initial value
https://github.com/ocamllabs/ocaml-ctypes/pull/644
Fix complex allocation size
https://github.com/ocamllabs/ocaml-ctypes/pull/642
Report names of missing symbols also under windows
https://github.com/ocamllabs/ocaml-ctypes/pull/641
Remove a level of boxing from struct and union values
https://github.com/ocamllabs/ocaml-ctypes/pull/640
Fix a markup issue in the funptr docstring
https://github.com/ocamllabs/ocaml-ctypes/pull/633
Move conf-pkg-config dependency to ctypes-foreign
https://github.com/ocamllabs/ocaml-ctypes/pull/631

Thanks to Andreas Hauptmann (@fdopen), Anil Madhavapeddy (@avsm), Anton Bachin (@aantron), Calascibetta Romain (@dinosaure), Sora Morimoto (@smorimoto) and and Stéphane Glondu (@glondu) for contributions to this release.

ctypes 0.17.1

Hide the managed component in pointer values
https://github.com/ocamllabs/ocaml-ctypes/pull/629
(This is an internal-only change that addresses a problem introduced in 0.17.0)

ctypes 0.17.0

ocaml_bytes now corresponds to 'unsigned char *', not 'char *'
https://github.com/ocamllabs/ocaml-ctypes/pull/625
Distinguish bytes and string in generated stub code
https://github.com/ocamllabs/ocaml-ctypes/pull/622
Reflect "managed" status in the types of fat pointers
https://github.com/ocamllabs/ocaml-ctypes/pull/619
(This is an internal-only change.)

ctypes 0.16.0

Add Foreign.dynamic_funptr, a variant of Foreign.funptr with explicit life cycle management.
https://github.com/ocamllabs/ocaml-ctypes/pull/595
fix ctypes-foreign depexts to work with opam 2
https://github.com/ocamllabs/ocaml-ctypes/pull/617
Build with -strict-sequence
https://github.com/ocamllabs/ocaml-ctypes/pull/613

Thanks to Andreas Hauptmann (@fdopen), Andrew Ray (@andrewray), Anil Madhavapeddy (@avsm), Armaël Guéneau (@Armael) and Matthias Horn (@tiash) for contributions to this release.

ctypes 0.15.1

Fix <complex.h>-related compilation issues on FreeBSD
https://github.com/ocamllabs/ocaml-ctypes/pull/608

ctypes 0.15.0

Avoid unaligned stores/loads
https://github.com/ocamllabs/ocaml-ctypes/pull/584
Fix LDouble.to_int bug resulting from upstream Val_long change
https://github.com/ocamllabs/ocaml-ctypes/pull/583
use CMPLX[FL]? macros instead of I
https://github.com/ocamllabs/ocaml-ctypes/pull/585
Various Windows fixes
https://github.com/ocamllabs/ocaml-ctypes/pull/586
Drop OCaml 4.01 support
https://github.com/ocamllabs/ocaml-ctypes/pull/577
Eliminate uses of <complex.h> on Android
https://github.com/ocamllabs/ocaml-ctypes/pull/579

Thanks to Anton Bachin (@aantron), Andreas Hauptmann (@fdopen) and @ygrek for contributions to this release.

ctypes 0.14.0

Add CArray.of_string
https://github.com/ocamllabs/ocaml-ctypes/pull/562
https://github.com/ocamllabs/ocaml-ctypes/pull/563
Attach ocaml_integers.h to the cstubs subpackage
https://github.com/ocamllabs/ocaml-ctypes/pull/557
fix custom operations of ComplexL
https://github.com/ocamllabs/ocaml-ctypes/pull/549

Thanks to Andreas Hauptmann (@fdopen), Rudi Grinberg (@rgrinberg) and Marcello Seri (@mseri) for contributions to this release.

ctypes 0.13.1

Add -no-keep-locs to the foreign-(un)?threaded build rules.
https://github.com/ocamllabs/ocaml-ctypes/pull/553

ctypes 0.13.0

Print typedefed enums correctly
https://github.com/ocamllabs/ocaml-ctypes/pull/547
Move the TYPE and FOREIGN signatures from cstubs to ctypes
https://github.com/ocamllabs/ocaml-ctypes/pull/544
https://github.com/ocamllabs/ocaml-ctypes/pull/537

Thanks to Leo White (@lpw25) for contributing to this release.

ctypes 0.12.1

Preserve intermediate values from views across foreign calls.
https://github.com/ocamllabs/ocaml-ctypes/pull/531

ctypes 0.12.0

Support for Fortran-layout bigarrays
https://github.com/ocamllabs/ocaml-ctypes/pull/523
Use the integers package for signed and unsigned integer support
https://github.com/ocamllabs/ocaml-ctypes/pull/515
Add support for binding enums defined without tags
https://github.com/ocamllabs/ocaml-ctypes/pull/510

Thanks to Bertrand Bonnefoy-Claudet (@bbc2) and Leo White (@lpw25) for contributions to this release.

ctypes 0.11.4

Fix function pointer support on no-exec platforms
https://github.com/ocamllabs/ocaml-ctypes/pull/511

Thanks to Matthias Horn (@tiash) for contributing to this release.

ctypes 0.11.3

Stub out some long double functions that are not supported on NetBSD and OpenBSD
https://github.com/ocamllabs/ocaml-ctypes/pull/503
Fix the build when shared libraries are not available
https://github.com/ocamllabs/ocaml-ctypes/pull/495

Thanks to Andreas Hauptmann (@fdopen) and Peter Zotov (@whitequark) for contributions to this release.

ctypes 0.11.2

Bug fixes

Fix truncation in UInt64.of_int; remove other uses of Val_int/Int_val
https://github.com/ocamllabs/ocaml-ctypes/pull/492

ctypes 0.11.1

Bug fixes

Stub out some long double complex functions that are not supported on Android
https://github.com/ocamllabs/ocaml-ctypes/pull/486

Thanks to Peter Zotov (@whitequark) and Jeremie Dimino (@diml) for contributions to this release.

ctypes 0.11.0

Features

Support for the long double and long double complex types
https://github.com/ocamllabs/ocaml-ctypes/pull/475
Support for binding foreign arrays
https://github.com/ocamllabs/ocaml-ctypes/pull/470
Improved printing for structs and unions without tags
https://github.com/ocamllabs/ocaml-ctypes/pull/467
Added a function is_null
https://github.com/ocamllabs/ocaml-ctypes/pull/463

Bug fixes

Custom operations (namely deserializing) for unsigned integers registered
https://github.com/ocamllabs/ocaml-ctypes/pull/480
All objects kept live when the runtime lock is released
https://github.com/ocamllabs/ocaml-ctypes/pull/473

Thanks to Andrew Ray (@andrewray) and Yunxing Dai (@yunxing) for contributions to this release.

ctypes 0.10.2

Bug fixes

Fix generated code for Lwt jobs where the return type is void.
https://github.com/ocamllabs/ocaml-ctypes/pull/460

Thanks to David Sheets (@dsheets) for contributions to this release.

ctypes 0.10.1

Bug fixes

Always extend integers returned from closures to full word size
(Fixes incorrectly-promoted integers returned from callbacks on ARM and MIPS)
https://github.com/ocamllabs/ocaml-ctypes/pull/456

Thanks to Andreas Hauptmann (@fdopen) for contributions to this release.

ctypes 0.10.0

Features

Windows support for registration of C threads from callbacks
https://github.com/ocamllabs/ocaml-ctypes/issues/450
Auto-load custom printers in the OCaml toplevel
https://github.com/ocamllabs/ocaml-ctypes/issues/448
Add some extra CArray functions: sub, copy, fold_right, fold_left, mapi, map, iter
https://github.com/ocamllabs/ocaml-ctypes/pull/323

Bug fixes

Build fix for OpenBSD
https://github.com/ocamllabs/ocaml-ctypes/issues/454
Fix for platforms (e.g. NetBSD) where standard integer types are defined as macros
https://github.com/ocamllabs/ocaml-ctypes/issues/453
Add missing bounds check in CArray
https://github.com/ocamllabs/ocaml-ctypes/issues/447

Compatibility

Dl.dlsym now returns nativeint, not Ctypes_ptr.voidp
https://github.com/ocamllabs/ocaml-ctypes/issues/445

Thanks to Andreas Hauptmann (@fdopen) for contributions to this release.

ctypes 0.9.2

Bug fixes

Revert a ctypes-foreign build regression in 0.9.1
https://github.com/ocamllabs/ocaml-ctypes/pull/443

ctypes 0.9.1

Bug fixes

Fix build rules on OpenBSD
https://github.com/ocamllabs/ocaml-ctypes/issues/428
Fix a memory leak that occurs when passing closures to C
https://github.com/ocamllabs/ocaml-ctypes/issues/436

Thanks to Enguerrand Decorne (@engil) for contributing to this release.

ctypes 0.9.0

Features

NetBSD support
Support for releasing the runtime lock in generated stubs
https://github.com/ocamllabs/ocaml-ctypes/issues/429
Support for Lwt_preemptive
https://github.com/ocamllabs/ocaml-ctypes/issues/430

Thanks to Martin Lucina (@mato) for contributing to this release.

ctypes 0.8.0

Features

Use unboxed types for uint8_t and uint16_t
https://github.com/ocamllabs/ocaml-ctypes/issues/413
Reset errno in Lwt jobs before invoking job function
https://github.com/ocamllabs/ocaml-ctypes/issues/426
Add a ~thread_registration argument to funptr to support registering C threads with the OCaml runtime.
https://github.com/ocamllabs/ocaml-ctypes/issues/420

Bug fixes

Use -opaque for module interfaces whose cmx files are not installed.
https://github.com/ocamllabs/ocaml-ctypes/issues/423
Install cstubs cmx files.
https://github.com/ocamllabs/ocaml-ctypes/issues/424

Thanks to David Sheets (@dsheets) and Demi Obenour (@DemiMarie) for contributions to this release.

ctypes 0.7.0

Features

Add support for bytecode-only architectures
https://github.com/ocamllabs/ocaml-ctypes/issues/410
Add a new sint type corresponding to a full-range C integer and update errno support to use sint
https://github.com/ocamllabs/ocaml-ctypes/issues/411

Bug fixes

Handle small integer return types correctly on big-endian platforms
https://github.com/ocamllabs/ocaml-ctypes/issues/404 https://github.com/ocamllabs/ocaml-ctypes/issues/405
Fix a bug with callbacks that return small types (less than a word)
https://github.com/ocamllabs/ocaml-ctypes/issues/405

Thanks to Stephane Glondu (@glondu) for contributions to this release.

ctypes 0.6.2

Bug fixes

Fix for argument quoting in the Windows build after new cross compilation support
https://github.com/ocamllabs/ocaml-ctypes/pull/399
Improve Lwt jobs support for functions with many or no arguments
https://github.com/ocamllabs/ocaml-ctypes/pull/400

Thanks to Andreas Hauptmann (@fdopen) for contributing to this release.

ctypes 0.6.1

Bug fixes

Fix constructor qualification in code generated for inverted stubs:
https://github.com/ocamllabs/ocaml-ctypes/pull/397

ctypes 0.6.0

Features

The Cstubs.FOREIGN interface has been extended with returning and @->, and some new types.
See the pull request for details:
https://github.com/ocamllabs/ocaml-ctypes/pull/389
NB: code that generates bindings using Cstubs may need to be updated to select return and @-> from the bindings functor argument rather than from the Ctypes module. Code that needs to be updated will fail to compile with the new interface. The pull request shows how to update your code, if necessary.
The Cstubs module can now generate asynchronous bindings to C functions using the Lwt jobs framework.
See the pull request for details:
https://github.com/ocamllabs/ocaml-ctypes/pull/391
The Cstubs module now supports optionally returning errno alongside the return value of bound C functions.
See the pull request for details:
https://github.com/ocamllabs/ocaml-ctypes/pull/392
Cross-compilation support is improved: the configuration step no longer runs binaries on the host.
See the pull request for details:
https://github.com/ocamllabs/ocaml-ctypes/pull/383
The Unsigned.S interface has new of_int64 and to_int64 functions.

Compatibility

The deprecated *:* and +:+ functions have been removed. Use Ctypes.field instead.
OCaml 4.00.* is no longer supported. The earliest supported OCaml release is 4.01.0

Thanks to Spiros Eliopoulos (@seliopou), @orbitz, Leonid Rozenberg (@rleonid) and Peter Zotov (@whitequark) for contributions to this release.

ctypes 0.5.1

Bug fixes

Use a C function, not Pervasives.ignore, to keep values alive.

ctypes 0.5.0

Thanks to Andreas Hauptmann (@fdopen), David Sheets (@dsheets), Etienne Millon (@emillon), Goswin von Brederlow (@mrvn), Leonid Rozenberg (@rleonid), @orbitz, Max Mouratov (@cakeplus), and Peter Zotov (@whitequark) for contributions to this release.

Features

Build and install *.cmt and *.cmti files.
Expose time_t as an unsigned value
Expose larger interfaces for POSIX types known to be integer types.
Add support for 1- and 2-byte unsigned integer typedefs.
Add support for 1-byte and 2-byte integer typedefs.
Add a Signed.Int module.
Expose more information in the Uncoercible exception.
allocate_n now defaults to zeroing its memory.
Add public root management interface.
NB: the interface is experimental and subject to change.
Look through views to add fields to structs and unions.
Support signed arithmetic operations for ssize_t.
Add support for ptrdiff_t as a typedef for a signed integer type.
Support intptr_t and uintptr_t as typedefs
Support coercions between object and function pointers.
Add public funptr_of_raw_address function.
Support static_funptr coercions
Add function pointers to the core type language
(See the Ctypes_static.static_funptr type, on which Foreign.funptr and Foreign.foreign are now based.)
Better support for functions returning void with inverted stubs.
Add support for releasing runtime lock to Cstubs_inverted.

Bug fixes

Fix: inconsistent use of caml_stat_* functions
Fix: a memory leak in ctypes_caml_roots_release

ctypes 0.4.2

Fix a bug involving access to local roots while the runtime lock was not held.

ctypes 0.4.1

Thanks to Etienne Millon (@emillon) for contributing to this release.

Fix placement of docstring titles
Add funptr's optional arguments to funptr_opt
Fix a typo in libffi detection code
Synchronize foreign.mli files (documentation)

ctypes 0.4

Thanks to A. Hauptmann (@fdopen), David Sheets (@dsheets), Maverick Woo (@maverickwoo), Peter Zotov (@whitequark), David Kaloper (@pqwy), Ramkumar Ramachandra (@artagnon), Thomas Braibant (@braibant), Hugo Heuzard (@hhugo) and Edwin Török (@edwintorok) for contributions to this release.

Major features

Support for the C99 bool type
Typedef support
Enum support
Support for accessing C globals with foreign_value in generated stubs
Support for retrieving #define and enum constants from C
Windows support
There is now support for Windows (32-bit and 64-bit, using MinGW) and automatic building and testing on Windows using Appveyor.
Support for releasing the runtime lock in C calls
The new release_runtime_lock argument to Foreign.foreign indicates whether the OCaml runtime lock should be released during the call to the bound C function, allowing other threads to run.
Support for acquiring the runtime lock in callbacks
There is a new runtime_lock argument to Foreign.funptr. Setting runtime_lock to true indicates that the OCaml runtime lock should be acquired during calls from C to OCaml and released during calls through function pointers from OCaml to C.
Support for passing 'bytes' values directly to C
See the relevant section of the FAQ.
Add support for custom printers in views.
Optionally obtain struct and union layout from C

Other changes

string_opt wraps char *, not void *.
Remove some poorly-supported POSIX types
Use nativeint to represent pointers
Support zero-argument callbacks
findlib package naming: ctypes.foreign-base ~> ctypes.foreign.base &c.
Make it possible to print a field name
Better exception handling when using RTLD_NOLOAD
RTLD_LOCAL support
Changed the #include path to $(ocamlfind query ctypes)
Renamed some internal modules to avoid name clashes

ctypes 0.3.4

Bug fixes

Thanks to Yakov Zaytsev (@ysz) for contributing to this release.

fix printing for nullary function stubs

ctypes 0.3.3

Bug fixes

respect pbyte_offset with cstubs

ctypes 0.3.2

Add bytes to the META "requires" field

ctypes 0.3.1

New features

Support for 'bytes'

Bug fixes

Avoid invalidated pointer access

ctypes 0.3

Thanks to Peter Zotov (@whitequark), David Sheets (@dsheets), Mike McClurg (@mcclurmc) and Anil Madhavapeddy (@avsm) for contributions to this release.

Major features

Support for passing OCaml strings directly to C

(Patch by Peter Zotov.)

The implications are discussed in the FAQ.

Support for generating C stubs from names and type declarations.

There are various examples available of packages which use stub support: see the fts example in the distribution (which uses a custom Makefile), this fork of async_ssl (which uses OCamlMakefile), and the cstubs branch of ocaml-lz4 (which uses oasis and ocamlbuild).

Support for turning OCaml modules into C libraries.

See the ocaml-ctypes-inverted-stubs-example repository for a sample project which exposes a part of Xmlm's API to C.

Other changes

Add a function string_from_ptr for creating a string from an address and length.
Generate codes for libffi ABI specifications.
Support for passing complex numbers to C using the stub generation backend.
Add raw_address_of_ptr, an inverse of ptr_of_raw_address.
Add a function typ_of_bigarray_kind for converting Bigarray.kind values to Ctypes.typ values.
Improved coercion support

Backwards incompatibilities

Array has been renamed to CArray.

ctypes 0.2.3

Bug fixes

Fix GC-related bug that shows up on OS X.

ctypes 0.2.2

Don't install ctypes-foreign cmx files.

ctypes 0.2.1

Bump META version

ctypes 0.2

Thanks to Ivan Gotovchits, Greg Perkins, Daniel Bünzli, Rob Hoes and Anil Madhavapeddy for contributions to this release.

Major features

Bigarray support.

See Bigarray types and Bigarray values for details.

Give the user control over the lifetime of closures passed to C.

See the FAQ for details.

Top level printing for C values and types

Loading the new findlib package ctypes.top in the toplevel will install custom printers for C types and values.

Other changes

Basic coercion support
Remove returning_checking_errno; pass a flag to foreign instead.
Add an optional argument to Foreign.foreign that ignores absent symbols. (Patch by Daniel Bünzli.)
More precise tests for whether types are 'passable'
Compulsory names for structure and union fields (*:* and +:+ are deprecated, but still supported for now.)
UInt32.of_int32, UInt32.to_int32, UInt64.of_int64, and UInt64.to_int64 functions.
Finalisers for ctypes-allocated memory.
Add a string_opt view (Patch by Rob Hoes.)
Add the 'camlint' basic type.
Complex number support
Abstract types now have names.