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2026-02-12 02:28:23 +02:00
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isinstancer)<01>xs&<26>//tmp/pip-target-zhdecbcm/lib/python/cffi/api.py<70><lambda>r s <00><00><1A>A<EFBFBD>x<EFBFBD>0<>c<00><>a<00>]tRt^toRtR5RltR6RltR7RltR8RltR9Rlt R t
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t R8R lt R t R tRtRtR5RltR:RltRtR;RltRt]R3RltRtR<RltR=RltR9RltRtR>RltRtRt] !]]RR4t!R;Rlt"R t#R!t$R"t%R#t&R$t'R%t(R&t)R't*R(t+R)t,R?R*lt-R?R+lt.R@R,lt/R-t0R.t1RAR/lt2R0t3R1t4R2t5R3t6R4t7Vt8R#)B<>FFIaf
The main top-level class that you instantiate once, or once per module.
Example usage:
ffi = FFI()
ffi.cdef("""
int printf(const char *, ...);
""")
C = ffi.dlopen(None) # standard library
-or-
C = ffi.verify() # use a C compiler: verify the decl above is right
C.printf("hello, %s!\n", ffi.new("char[]", "world"))
Nc  <0C>.<00>Vf<>^RIp^RIHpVPV8wdm\VR4'd5\ RV: R\
: RVP: RVP
: R2 4h\ RV: R\
: RVP: R24h^R IHpWn\4Vn VP4Vn /Vn \P!R
4PVn\P!R 4PVn.Vn.Vn.Vn.VnRVn/VnRVnRVn\4P6!V4Vn\VR 4'dVP;V4\=VP4F1pVP?R 4'gK\AW\CW44K3 VP;_uu_4VPE\4PF4Vn$VPE\4PJ4Vn&RRR4\OV\P4'db\\PR4'gKVPSVPH^4\Pn*VPW4w\Pn,\Pn-M>VPSVPH^4Vn*VPW4wVn,Vn-VP\Vn.R# +'giL<>;i)zkCreate an FFI instance. The 'backend' argument is used to
select a non-default backend, mostly for tests.
N)<01> __version__<5F>__file__z5Version mismatch: this is the 'cffi' package version z , located in zQ. When we import the top-level '_cffi_backend' extension module, we get version z=. The two versions should be equal; check your installation.zS. This interpreter comes with a built-in '_cffi_backend' module, which is version )<01>cparser<65> parsed_types<65> new_types<65>set_ffi<66>RTLD_<44>NULL)/<2F> _cffi_backend<6E>r<00>hasattr<74> Exceptionrr<00>_backendr<00>_lock<63>Parser<65>_parser<65>_cached_btypes<65>types<65>
ModuleType<EFBFBD>__dict__<5F> _parsed_types<65>
_new_types<EFBFBD>_function_caches<65>
_libraries<EFBFBD> _cdefsources<65>_included_ffis<69>_windows_unicode<64>_init_once_cache<68> _cdef_version<6F>
_embeddingr<00> get_typecache<68>
_typecacher<00>list<73>
startswith<EFBFBD>setattr<74>getattr<74>_get_cached_btype<70>
voidp_type<EFBFBD>BVoidP<64>char_array_type<70>BCharAr r<00>castr<00>
_get_types<EFBFBD>CData<74>CType<70>buffer)<05>self<6C>backendrr<00>names&& r <00>__init__<5F> FFI.__init__)sB<00><00> <13>?<3F> ,<2C> %<25><16>"<22>"<22>k<EFBFBD>1<><1A>7<EFBFBD>J<EFBFBD>/<2F>/<2F>#<23>#<23>X<EFBFBD><1F>+<2B>+<2B>W<EFBFBD>-=<3D>-=<3D>%?<3F>@<01>@<01>
$<24>#<23>X<EFBFBD>w<EFBFBD>/B<>/B<>%D<01>E<01>E<01> <1E><1F> <0A>"<22>_<EFBFBD><04>
<EFBFBD><1E>~<7E>~<7E>'<27><04> <0C> <20><04><1B>"<22>-<2D>-<2D>n<EFBFBD>=<3D>F<>F<><04><1A><1F>*<2A>*<2A>;<3B>7<>@<40>@<40><04><0F> "<22><04><1D><1C><04><0F><1E><04><19> <20><04><1B> $<24><04><1D> "<22><04><1D>!<21><04><1A><1E><04><0F><1F>-<2D>-<2D>g<EFBFBD>6<><04><0F> <12>7<EFBFBD>I<EFBFBD> &<26> &<26> <13>O<EFBFBD>O<EFBFBD>D<EFBFBD> !<21><18><17>)<29>)<29>*<2A>D<EFBFBD><13><EFBFBD><EFBFBD>w<EFBFBD>'<27>'<27><17><04>G<EFBFBD>G<EFBFBD>$:<3A>;<3B>+<2B><12>Z<EFBFBD>Z<EFBFBD>Z<EFBFBD><1E>0<>0<><15>1A<31>1A<31>B<>D<EFBFBD>K<EFBFBD><1E>0<>0<><15>1F<31>1F<31>G<>D<EFBFBD>K<EFBFBD><18> <16>g<EFBFBD>u<EFBFBD>/<2F>/<2F> 0<> 0<><1A>3<EFBFBD><06>'<27>'<27><1F>9<EFBFBD>9<EFBFBD>T<EFBFBD>[<5B>[<5B>!<21>4<><03><08>'.<2E>'9<>'9<>';<3B>$<24><03> <09>3<EFBFBD>9<EFBFBD><39><1D> <09> <09>$<24>+<2B>+<2B>q<EFBFBD>1<>D<EFBFBD>I<EFBFBD>%,<2C>%7<>%7<>%9<> "<22>D<EFBFBD>J<EFBFBD><04>
<EFBFBD><1D>n<EFBFBD>n<EFBFBD><04> <0B><18>Z<EFBFBD>s <00>!A L<05> L Fc <0C>,<00>VPWW4R7R#)aParse the given C source. This registers all declared functions,
types, and global variables. The functions and global variables can
then be accessed via either 'ffi.dlopen()' or 'ffi.verify()'.
The types can be used in 'ffi.new()' and other functions.
If 'packed' is specified as True, all structs declared inside this
cdef are packed, i.e. laid out without any field alignment at all.
Alternatively, 'pack' can be a small integer, and requests for
alignment greater than that are ignored (pack=1 is equivalent to
packed=True).
)<03>override<64>packed<65>packN)<01>_cdef)r?<00>csourcerErFrGs&&&&&r <00>cdef<65>FFI.cdefes<00><00> <0A>
<EFBFBD>
<EFBFBD>7<EFBFBD>f<EFBFBD>
<EFBFBD>Hr c<08>\<00>VPWVRR7VPf
RVnR#R#)T)rFrG<00> dllexportNr)rHr.)r?rIrFrGs&&&&r <00> embedding_api<70>FFI.embedding_apirs*<00><00> <0C>
<EFBFBD>
<EFBFBD>7<EFBFBD><04><04>
<EFBFBD>E<> <0F>?<3F>?<3F> "<22> <20>D<EFBFBD>O<EFBFBD> #r c <08>r<00>\V\4'g3\V\4'g \R4hVP R4pVP
;_uu_4\ 4VnVPP!V3RV/VBVPPV4V'd$VPFpVP4K VPPpV'd,.VPnVFpVPW4K RRR4R# +'giR#;i)z cdef() argument must be a string<6E>asciirEN)r <00>str<74>
basestring<EFBFBD> TypeError<6F>encoder<00>objectr-r <00>parser)<00>appendr'<00>clear<61> _recomplete<74>finish_backend_type)r?rIrE<00>options<6E>cache<68>
finishlist<EFBFBD>tps&&&, r rH<00> FFI._cdefws<><00><00><19>'<27>3<EFBFBD>'<27>'<27><1D>g<EFBFBD>z<EFBFBD>2<>2<><1F> B<>C<>C<><1D>n<EFBFBD>n<EFBFBD>W<EFBFBD>-<2D>G<EFBFBD> <11>Z<EFBFBD>Z<EFBFBD>Z<EFBFBD>!'<27><18>D<EFBFBD> <1E> <10>L<EFBFBD>L<EFBFBD> <1E> <1E>w<EFBFBD> E<><18> E<>W<EFBFBD> E<> <10> <1D> <1D> $<24> $<24>W<EFBFBD> -<2D><17>!<21>2<>2<>E<EFBFBD><19>K<EFBFBD>K<EFBFBD>M<EFBFBD>3<><1D><1C><1C>1<>1<>J<EFBFBD><19>+-<2D><04> <0C> <0C>(<28>$<24>B<EFBFBD><16>*<2A>*<2A>4<EFBFBD><<3C>%<25><18>Z<EFBFBD>Z<EFBFBD>Z<EFBFBD>s<00>BD%<05>0+D%<05>% D6 c <0C>p<00>\V\4'g+Ve'\WP4'g \R4hVP;_uu_4\ WV4wr4VP PV4VPPV4RRR4V# +'giX#;i)a Load and return a dynamic library identified by 'name'.
The standard C library can be loaded by passing None.
Note that functions and types declared by 'ffi.cdef()' are not
linked to a particular library, just like C headers; in the
library we only look for the actual (untyped) symbols.
NzRdlopen(name): name must be a file name, None, or an already-opened 'void *' handle) r rSr<rTr<00>_make_ffi_libraryr'rXr()r?rA<00>flags<67>lib<69>function_caches&&& r <00>dlopen<65>
FFI.dlopen<65>s<><00><00><1B>4<EFBFBD><1A>,<2C>,<2C><14> <0C><1A>4<EFBFBD><1A><1A>,<2C>,<2C><1B>C<01>D<01> D<01> <11>Z<EFBFBD>Z<EFBFBD>Z<EFBFBD>"3<>D<EFBFBD><05>"F<> <1F>C<EFBFBD> <10> !<21> !<21> (<28> (<28><1E> 8<> <10>O<EFBFBD>O<EFBFBD> "<22> "<22>3<EFBFBD> '<27><18><13>
<EFBFBD> <18>Z<EFBFBD><13>
<EFBFBD>s <00>AB$<05>$ B5 c <0C>:<00>\V4PV4R#)z<>Close a library obtained with ffi.dlopen(). After this call,
access to functions or variables from the library will fail
(possibly with a segmentation fault).
N)<02>type<70>__cffi_close__)r?rds&&r <00>dlclose<73> FFI.dlclose<73>s<00><00>
<0A>S<EFBFBD> <09> <20> <20><13>%r c<08>`<00>TpW P9dVPV,#\V\4'gVPR4pVPP V4pVP pV'dVP4pVPV4pWT3pW`PV&V#)rQ) r%r rRrUr <00>
parse_type<EFBFBD>is_raw_function<6F>as_function_pointerr5)r?<00>cdecl<63>keyri<00>really_a_function_type<70>btype<70>results&& r <00>_typeof_locked<65>FFI._typeof_locked<65>s<><00><00><13><03> <0E>$<24>$<24> $<24><17>%<25>%<25>c<EFBFBD>*<2A> *<2A><19>%<25><13>%<25>%<25><19>L<EFBFBD>L<EFBFBD><17>)<29>E<EFBFBD><13>|<7C>|<7C>&<26>&<26>u<EFBFBD>-<2D><04>!%<25>!5<>!5<><1E> !<21><17>+<2B>+<2B>-<2D>D<EFBFBD><14>&<26>&<26>t<EFBFBD>,<2C><05><16>.<2E><06>"(<28><1A><1A>3<EFBFBD><1F><15> r c<08><00>VPV,pXwrET'dT'g\ RT: R24hT# \dGTP;_uu_4TPT4pRRR4Kb +'giLs;ii;i)Nz the type z3 is a function type, not a pointer-to-function type)r%<00>KeyErrorrrvr)r?rq<00>consider_function_as_funcptrrurtrss&&& r <00>_typeof<6F> FFI._typeof<6F>sz<00><00> 4<><19>'<27>'<27><05>.<2E>F<EFBFBD>
)/<2F>%<25><05> !<21>*F<><1B>:?<3F>B<01>C<01> C<01><14> <0C><><18> 4<><15><1A><1A><1A><1D>,<2C>,<2C>U<EFBFBD>3<><06><1C><1A><1A><1A><> 4<>s'<00>;<00>B <03>A7<07>,B <03>7 B <0B>B <03>B c <0C>D<00>\V\4'dVPV4#\WP4'dVPP V4#\V\ P4'd\V4pVeV#\V\ P4'dM\VR4'd;VP;_uu_4VPVP4uuRRR4#\\V44h +'giL$;i)z<>Parse the C type given as a string and return the
corresponding <ctype> object.
It can also be used on 'cdata' instance to get its C type.
N<EFBFBD>_cffi_base_type)r rSr{r<r<00>typeofr"<00>BuiltinFunctionType<70>_builtin_function_type<70> FunctionTyperrr5r~rTri)r?rq<00>ress&& r r<00>
FFI.typeof<6F>s<><00><00>
<16>e<EFBFBD>Z<EFBFBD> (<28> (<28><17><<3C><<3C><05>&<26> &<26> <15>e<EFBFBD>Z<EFBFBD>Z<EFBFBD> (<28> (<28><17>=<3D>=<3D>'<27>'<27><05>.<2E> .<2E> <15>e<EFBFBD>U<EFBFBD>6<>6<> 7<> 7<>(<28><15>/<2F>C<EFBFBD><12><EFBFBD><1A>
<EFBFBD> <16>u<EFBFBD>e<EFBFBD>0<>0<> 1<> 1<><1B>E<EFBFBD>#4<>5<>5<><15><1A><1A><1A><1B>-<2D>-<2D>e<EFBFBD>.C<>.C<>D<><1C><1A><17><04>U<EFBFBD> <0B>$<24>$<24><1C><1A>s <00>D<05> D c <0C><><00>\V\4'd-VPV4pVPP V4#VPP V4#)zfReturn the size in bytes of the argument. It can be a
string naming a C type, or a 'cdata' instance.
)r rSr{r<00>sizeof)r?rq<00>BTypes&& r r<><00>
FFI.sizeof<6F>sI<00><00> <16>e<EFBFBD>Z<EFBFBD> (<28> (<28><18>L<EFBFBD>L<EFBFBD><15>'<27>E<EFBFBD><17>=<3D>=<3D>'<27>'<27><05>.<2E> .<2E><17>=<3D>=<3D>'<27>'<27><05>.<2E> .r c <0C><><00>\V\4'dVPV4pVPP V4#)zLReturn the natural alignment size in bytes of the C type
given as a string.
)r rSr{r<00>alignof)r?rqs&&r r<><00> FFI.alignof<6F>s4<00><00> <16>e<EFBFBD>Z<EFBFBD> (<28> (<28><18>L<EFBFBD>L<EFBFBD><15>'<27>E<EFBFBD><13>}<7D>}<7D>$<24>$<24>U<EFBFBD>+<2B>+r c <0C><><00>\V\4'dVPV4pVP!V.VO5!^,#)a Return the offset of the named field inside the given
structure or array, which must be given as a C type name.
You can give several field names in case of nested structures.
You can also give numeric values which correspond to array
items, in case of an array type.
)r rSr{<00> _typeoffsetof)r?rq<00>fields_or_indexess&&*r <00>offsetof<6F> FFI.offsetof<6F>s;<00><00> <16>e<EFBFBD>Z<EFBFBD> (<28> (<28><18>L<EFBFBD>L<EFBFBD><15>'<27>E<EFBFBD><13>!<21>!<21>%<25><<3C>*;<3B><<3C>Q<EFBFBD>?<3F>?r c <0C><><00>\V\4'dVPV4pVPP W4#)aAllocate an instance according to the specified C type and
return a pointer to it. The specified C type must be either a
pointer or an array: ``new('X *')`` allocates an X and returns
a pointer to it, whereas ``new('X[n]')`` allocates an array of
n X'es and returns an array referencing it (which works
mostly like a pointer, like in C). You can also use
``new('X[]', n)`` to allocate an array of a non-constant
length n.
The memory is initialized following the rules of declaring a
global variable in C: by default it is zero-initialized, but
an explicit initializer can be given which can be used to
fill all or part of the memory.
When the returned <cdata> object goes out of scope, the memory
is freed. In other words the returned <cdata> object has
ownership of the value of type 'cdecl' that it points to. This
means that the raw data can be used as long as this object is
kept alive, but must not be used for a longer time. Be careful
about that when copying the pointer to the memory somewhere
else, e.g. into another structure.
)r rSr{r<00>newp)r?rq<00>inits&&&r <00>new<65>FFI.new<65>s4<00><00>. <16>e<EFBFBD>Z<EFBFBD> (<28> (<28><18>L<EFBFBD>L<EFBFBD><15>'<27>E<EFBFBD><13>}<7D>}<7D>!<21>!<21>%<25>.<2E>.r c <0C>taa<06>SPP4pVPWV4oRVV3RllpV#)awReturn a new allocator, i.e. a function that behaves like ffi.new()
but uses the provided low-level 'alloc' and 'free' functions.
'alloc' is called with the size as argument. If it returns NULL, a
MemoryError is raised. 'free' is called with the result of 'alloc'
as argument. Both can be either Python function or directly C
functions. If 'free' is None, then no free function is called.
If both 'alloc' and 'free' are None, the default is used.
If 'should_clear_after_alloc' is set to False, then the memory
returned by 'alloc' is assumed to be already cleared (or you are
fine with garbage); otherwise CFFI will clear it.
c<00>b<<02>\V\4'dSPV4pS!W4#r<00>r rSr{)rqr<><00> allocatorr?s&&<26><>r <00>allocate<74>#FFI.new_allocator.<locals>.allocates)<00><><00><19>%<25><1A>,<2C>,<2C><1C> <0C> <0C>U<EFBFBD>+<2B><05><1C>U<EFBFBD>)<29> )r r)rr<00> new_allocator)r?<00>alloc<6F>free<65>should_clear_after_alloc<6F> compiled_ffir<69>r<>sf&&& @r r<><00>FFI.new_allocator s><00><><00><1C>}<7D>}<7D>(<28>(<28>*<2A> <0C> <20>.<2E>.<2E>u<EFBFBD>/G<>I<01> <09> *<2A> *<2A><18>r c <0C><><00>\V\4'dVPV4pVPP W4#)z<>Similar to a C cast: returns an instance of the named C
type initialized with the given 'source'. The source is
casted between integers or pointers of any type.
)r rSr{rr:)r?rq<00>sources&&&r r:<00>FFI.cast%s4<00><00>
<16>e<EFBFBD>Z<EFBFBD> (<28> (<28><18>L<EFBFBD>L<EFBFBD><15>'<27>E<EFBFBD><13>}<7D>}<7D>!<21>!<21>%<25>0<>0r c <0C>8<00>VPPW4#)akReturn a Python string (or unicode string) from the 'cdata'.
If 'cdata' is a pointer or array of characters or bytes, returns
the null-terminated string. The returned string extends until
the first null character, or at most 'maxlen' characters. If
'cdata' is an array then 'maxlen' defaults to its length.
If 'cdata' is a pointer or array of wchar_t, returns a unicode
string following the same rules.
If 'cdata' is a single character or byte or a wchar_t, returns
it as a string or unicode string.
If 'cdata' is an enum, returns the value of the enumerator as a
string, or 'NUMBER' if the value is out of range.
)r<00>string)r?<00>cdata<74>maxlens&&&r r<><00>
FFI.string.s<00><00> <14>}<7D>}<7D>#<23>#<23>E<EFBFBD>2<>2r c <0C>8<00>VPPW4#)a<>Unpack an array of C data of the given length,
returning a Python string/unicode/list.
If 'cdata' is a pointer to 'char', returns a byte string.
It does not stop at the first null. This is equivalent to:
ffi.buffer(cdata, length)[:]
If 'cdata' is a pointer to 'wchar_t', returns a unicode string.
'length' is measured in wchar_t's; it is not the size in bytes.
If 'cdata' is a pointer to anything else, returns a list of
'length' items. This is a faster equivalent to:
[cdata[i] for i in range(length)]
)r<00>unpack)r?r<><00>lengths&&&r r<><00>
FFI.unpack@s<00><00><14>}<7D>}<7D>#<23>#<23>E<EFBFBD>2<>2r c <0C><><00>V\JdVPTr!M'\V\4'dVP V4pVP
P WV4#)a<>Return a cdata of the given type pointing to the data of the
given Python object, which must support the buffer interface.
Note that this is not meant to be used on the built-in types
str or unicode (you can build 'char[]' arrays explicitly)
but only on objects containing large quantities of raw data
in some other format, like 'array.array' or numpy arrays.
The first argument is optional and default to 'char[]'.
)<07> _unspecifiedr9r rSr{r<00> from_buffer)r?rq<00> python_buffer<65>require_writables&&&&r r<><00>FFI.from_buffer^sN<00><00> <19>L<EFBFBD> (<28>#'<27>;<3B>;<3B><05>=<3D> <17><05>z<EFBFBD> *<2A> *<2A><18>L<EFBFBD>L<EFBFBD><15>'<27>E<EFBFBD><13>}<7D>}<7D>(<28>(<28><15>)9<>;<3B> ;r c <0C>:<00>VPPWV4#)affi.memmove(dest, src, n) copies n bytes of memory from src to dest.
Like the C function memmove(), the memory areas may overlap;
apart from that it behaves like the C function memcpy().
'src' can be any cdata ptr or array, or any Python buffer object.
'dest' can be any cdata ptr or array, or a writable Python buffer
object. The size to copy, 'n', is always measured in bytes.
Unlike other methods, this one supports all Python buffer including
byte strings and bytearrays---but it still does not support
non-contiguous buffers.
)r<00>memmove)r?<00>dest<73>src<72>ns&&&&r r<><00> FFI.memmoveps<00><00><14>}<7D>}<7D>$<24>$<24>T<EFBFBD><01>2<>2r c <0C><>aaaa<04>VVVV3Rlp\S\4'dSPSRR7oVfV#V!V4#)a_Return a callback object or a decorator making such a
callback object. 'cdecl' must name a C function pointer type.
The callback invokes the specified 'python_callable' (which may
be provided either directly or via a decorator). Important: the
callback object must be manually kept alive for as long as the
callback may be invoked from the C level.
c<00>x<<04>\V4'g \R4hSPPSVSS4#)z.the 'python_callable' argument is not callable)<04>callablerTr<00>callback)<05>python_callablerq<00>error<6F>onerrorr?s&<26><><EFBFBD><EFBFBD>r <00>callback_decorator_wrap<61>-FFI.callback.<locals>.callback_decorator_wrap<61>s@<00><><00><1B>O<EFBFBD>,<2C>,<2C><1F>!2<>3<>3<><17>=<3D>=<3D>)<29>)<29>%<25><1F>*/<2F><17>:<3A> :r T)rzr<>)r?rqr<>r<>r<>r<>sff&ff r r<><00> FFI.callback<63>sE<00><><00> :<3A> :<3A> <16>e<EFBFBD>Z<EFBFBD> (<28> (<28><18>L<EFBFBD>L<EFBFBD><15>T<EFBFBD>L<EFBFBD>J<>E<EFBFBD> <1A> "<22>*<2A> *<2A>*<2A>?<3F>;<3B> ;r c <0C>h<00>\V\4'dVPV4pVP4pVP R4'd,RVP
P VR49d RV,pMV'dV^,R9g
RV,pVP
P W4#)aReturn a string giving the C type 'cdecl', which may be itself
a string or a <ctype> object. If 'replace_with' is given, it gives
extra text to append (or insert for more complicated C types), like
a variable name, or '*' to get actually the C type 'pointer-to-cdecl'.
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