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next steps for FFI support

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This commit is contained in:
Araq 2013-11-25 13:04:11 +01:00
commit 9035d15ed2
9 changed files with 179 additions and 63 deletions
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84
lib/wrappers/libffi.nim → lib/wrappers/libffi/libffi.nim
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@ -26,12 +26,40 @@
{.deadCodeElim: on.}
when defined(windows):
const libffidll* = "libffi.dll"
elif defined(macosx):
const libffidll* = "libffi.dylib"
else:
const libffidll* = "libffi.so"
when defined(windows):
# on Windows we don't use a DLL but instead embed libffi directly:
{.pragma: mylib, header: r"ffi.h".}
{.compile: r"common\callproc.c".}
{.compile: r"common\malloc_closure.c".}
{.compile: r"common\raw_api.c".}
when defined(vcc):
#{.compile: "libffi_msvc\ffi.h".}
#<ClInclude: "..\Modules\_ctypes\libffi_msvc\ffi_common.h".}
#<ClInclude: "..\Modules\_ctypes\libffi_msvc\fficonfig.h".}
#<ClInclude: "..\Modules\_ctypes\libffi_msvc\ffitarget.h".}
{.compile: r"msvc\ffi.c".}
{.compile: r"msvc\prep_cif.c".}
{.compile: r"msvc\win32.c".}
{.compile: r"msvc\types.c".}
when defined(cpu64):
{.compile: r"msvc\win64.asm".}
else:
{.compile: r"gcc\ffi.c".}
{.compile: r"gcc\prep_cif.c".}
{.compile: r"gcc\win32.c".}
{.compile: r"gcc\types.c".}
{.compile: r"gcc\closures.c".}
when defined(cpu64):
{.compile: r"gcc\ffi64.c".}
{.compile: r"gcc\win64.S".}
else:
{.compile: r"gcc\win32.S".}
elif defined(macosx):
{.pragma: mylib, dynlib: "libffi.dylib".}
else:
{.pragma: mylib, dynlib: "libffi.so".}
type
TArg* = int
@ -88,19 +116,19 @@ type
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_void* {.importc: "ffi_type_void", mylib.}: TType
type_uint8* {.importc: "ffi_type_uint8", mylib.}: TType
type_sint8* {.importc: "ffi_type_sint8", mylib.}: TType
type_uint16* {.importc: "ffi_type_uint16", mylib.}: TType
type_sint16* {.importc: "ffi_type_sint16", mylib.}: TType
type_uint32* {.importc: "ffi_type_uint32", mylib.}: TType
type_sint32* {.importc: "ffi_type_sint32", mylib.}: TType
type_uint64* {.importc: "ffi_type_uint64", mylib.}: TType
type_sint64* {.importc: "ffi_type_sint64", mylib.}: TType
type_float* {.importc: "ffi_type_float", mylib.}: TType
type_double* {.importc: "ffi_type_double", mylib.}: TType
type_pointer* {.importc: "ffi_type_pointer", mylib.}: TType
type_longdouble* {.importc: "ffi_type_longdouble", mylib.}: TType
type
Tstatus* {.size: sizeof(cint).} = enum
@ -119,20 +147,18 @@ type
sint*: TSArg
proc raw_call*(cif: var Tcif; fn: proc () {.cdecl.}; rvalue: pointer;
avalue: ptr TRaw) {.cdecl, importc: "ffi_raw_call",
dynlib: libffidll.}
avalue: ptr TRaw) {.cdecl, importc: "ffi_raw_call", mylib.}
proc ptrarray_to_raw*(cif: var Tcif; args: ptr pointer; raw: ptr TRaw) {.cdecl,
importc: "ffi_ptrarray_to_raw", dynlib: libffidll.}
importc: "ffi_ptrarray_to_raw", mylib.}
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.}
importc: "ffi_raw_to_ptrarray", mylib.}
proc raw_size*(cif: var Tcif): int {.cdecl, importc: "ffi_raw_size", mylib.}
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.}
mylib.}
proc call*(cif: var Tcif; fn: proc () {.cdecl.}; rvalue: pointer;
avalue: ptr pointer) {.cdecl, importc: "ffi_call", dynlib: libffidll.}
avalue: ptr pointer) {.cdecl, importc: "ffi_call", mylib.}
# the same with an easier interface:
type
@ -141,9 +167,9 @@ type
proc prep_cif*(cif: var Tcif; abi: TABI; nargs: cuint; rtype: ptr TType;
atypes: TParamList): TStatus {.cdecl, importc: "ffi_prep_cif",
dynlib: libffidll.}
mylib.}
proc call*(cif: var Tcif; fn, rvalue: pointer;
avalue: TArgList) {.cdecl, importc: "ffi_call", dynlib: libffidll.}
avalue: TArgList) {.cdecl, importc: "ffi_call", mylib.}
# Useful for eliminating compiler warnings
##define FFI_FN(f) ((void (*)(void))f)