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# -----------------------------------------------------------------*-C-*-
# libffi 3.0.10 - Copyright (c) 2011 Anthony Green
# - Copyright (c) 1996-2003, 2007, 2008 Red Hat, Inc.
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the ``Software''), to deal in the Software without
# restriction, including without limitation the rights to use, copy,
# modify, merge, publish, distribute, sublicense, and/or sell copies
# of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#
# -----------------------------------------------------------------------
{.deadCodeElim: on.}
when defined(windows):
const libffidll* = "libffi.dll"
elif defined(macosx):
const libffidll* = "libffi.dylib"
else:
const libffidll* = "libffi.so"
type
TArg* = int
TSArg* = int
when defined(windows) and defined(x86):
type
TABI* {.size: sizeof(cint).} = enum
FIRST_ABI, SYSV, STDCALL
const DEFAULT_ABI* = SYSV
elif defined(amd64) and defined(windows):
type
TABI* {.size: sizeof(cint).} = enum
FIRST_ABI, WIN64
const DEFAULT_ABI* = WIN64
else:
type
TABI* {.size: sizeof(cint).} = enum
FIRST_ABI, SYSV, UNIX64
when defined(i386):
const DEFAULT_ABI* = SYSV
else:
const DEFAULT_ABI* = UNIX64
const
tkVOID* = 0
tkINT* = 1
tkFLOAT* = 2
tkDOUBLE* = 3
tkLONGDOUBLE* = 4
tkUINT8* = 5
tkSINT8* = 6
tkUINT16* = 7
tkSINT16* = 8
tkUINT32* = 9
tkSINT32* = 10
tkUINT64* = 11
tkSINT64* = 12
tkSTRUCT* = 13
tkPOINTER* = 14
tkLAST = tkPOINTER
tkSMALL_STRUCT_1B* = (tkLAST + 1)
tkSMALL_STRUCT_2B* = (tkLAST + 2)
tkSMALL_STRUCT_4B* = (tkLAST + 3)
type
TType* = object
size*: int
alignment*: uint16
typ*: uint16
elements*: ptr ptr TType
var
type_void* {.importc: "ffi_type_void", dynlib: libffidll.}: TType
type_uint8* {.importc: "ffi_type_uint8", dynlib: libffidll.}: TType
type_sint8* {.importc: "ffi_type_sint8", dynlib: libffidll.}: TType
type_uint16* {.importc: "ffi_type_uint16", dynlib: libffidll.}: TType
type_sint16* {.importc: "ffi_type_sint16", dynlib: libffidll.}: TType
type_uint32* {.importc: "ffi_type_uint32", dynlib: libffidll.}: TType
type_sint32* {.importc: "ffi_type_sint32", dynlib: libffidll.}: TType
type_uint64* {.importc: "ffi_type_uint64", dynlib: libffidll.}: TType
type_sint64* {.importc: "ffi_type_sint64", dynlib: libffidll.}: TType
type_float* {.importc: "ffi_type_float", dynlib: libffidll.}: TType
type_double* {.importc: "ffi_type_double", dynlib: libffidll.}: TType
type_pointer* {.importc: "ffi_type_pointer", dynlib: libffidll.}: TType
type_longdouble* {.importc: "ffi_type_longdouble", dynlib: libffidll.}: TType
type
Tstatus* {.size: sizeof(cint).} = enum
OK, BAD_TYPEDEF, BAD_ABI
TTypeKind* = cuint
TCif* {.pure, final.} = object
abi*: TABI
nargs*: cuint
arg_types*: ptr ptr TType
rtype*: ptr TType
bytes*: cuint
flags*: cuint
type
TRaw* = object
sint*: TSArg
proc raw_call*(cif: var Tcif; fn: proc () {.cdecl.}; rvalue: pointer;
avalue: ptr TRaw) {.cdecl, importc: "ffi_raw_call",
dynlib: libffidll.}
proc ptrarray_to_raw*(cif: var Tcif; args: ptr pointer; raw: ptr TRaw) {.cdecl,
importc: "ffi_ptrarray_to_raw", dynlib: libffidll.}
proc raw_to_ptrarray*(cif: var Tcif; raw: ptr TRaw; args: ptr pointer) {.cdecl,
importc: "ffi_raw_to_ptrarray", dynlib: libffidll.}
proc raw_size*(cif: var Tcif): int {.cdecl, importc: "ffi_raw_size",
dynlib: libffidll.}
proc prep_cif*(cif: var Tcif; abi: TABI; nargs: cuint; rtype: ptr TType;
atypes: ptr ptr TType): TStatus {.cdecl, importc: "ffi_prep_cif",
dynlib: libffidll.}
proc call*(cif: var Tcif; fn: proc () {.cdecl.}; rvalue: pointer;
avalue: ptr pointer) {.cdecl, importc: "ffi_call", dynlib: libffidll.}
# the same with an easier interface:
type
TParamList* = array[0..100, ptr TType]
TArgList* = array[0..100, pointer]
proc prep_cif*(cif: var Tcif; abi: TABI; nargs: cuint; rtype: ptr TType;
atypes: TParamList): TStatus {.cdecl, importc: "ffi_prep_cif",
dynlib: libffidll.}
proc call*(cif: var Tcif; fn, rvalue: pointer;
avalue: TArgList) {.cdecl, importc: "ffi_call", dynlib: libffidll.}
# Useful for eliminating compiler warnings
##define FFI_FN(f) ((void (*)(void))f)
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