Commit Graph

117 Commits

Author SHA1 Message Date
Thomas Heller d5bb9215c9 Revert revisions 63943 and 63942 (Issue #1798: Add ctypes calling
convention that allows safe access to errno)

This code does not yet work on OS X (__thread storage specifier not
available), so i needs a configure check plus a more portable
solution.
2008-06-04 20:22:05 +00:00
Thomas Heller e70c3378c0 Issue #1798: Add ctypes calling convention that allows safe access to
errno (and LastError, on Windows).

ctypes maintains a module-global, but thread-local, variable that
contains an error number; called 'ctypes_errno' for this discussion.
This variable is a private copy of the systems 'errno' value; the copy
is swapped with the 'errno' variable on several occasions.

Foreign functions created with CDLL(..., use_errno=True), when called,
swap the values just before the actual function call, and swapped
again immediately afterwards.  The 'use_errno' parameter defaults to
False, in this case 'ctypes_errno' is not touched.

The values are also swapped immeditately before and after ctypes
callback functions are called, if the callbacks are constructed using
the new optional use_errno parameter set to True: CFUNCTYPE(..., use_errno=TRUE)
or WINFUNCTYPE(..., use_errno=True).

Two new ctypes functions are provided to access the 'ctypes_errno'
value from Python:

- ctypes.set_errno(value) sets ctypes_errno to 'value', the previous
  ctypes_errno value is returned.

- ctypes.get_errno() returns the current ctypes_errno value.

---

On Windows, the same scheme is implemented for the error value which
is managed by the GetLastError() and SetLastError() windows api calls.

The ctypes functions are 'ctypes.set_last_error(value)' and
'ctypes.get_last_error()', the CDLL and WinDLL optional parameter is
named 'use_last_error', defaults to False.

---

On Windows, TlsSetValue and TlsGetValue calls are used to provide
thread local storage for the variables; ctypes compiled with __GNUC__
uses __thread variables.
2008-06-04 18:59:03 +00:00
Thomas Heller 261b136321 Fix the -x flag so that is does work. 2008-06-02 20:07:46 +00:00
Thomas Heller 9287acf83d ctypes NULL function pointers have a boolean False value now. 2008-05-29 19:42:34 +00:00
Thomas Heller 6c78f553ae Oops, get_tests may be called with 3 arguments. 2008-05-21 19:47:44 +00:00
Thomas Heller 7d9e721586 The -x <test1[,test2...]> flag allows to exclude tests. 2008-05-21 18:47:02 +00:00
Thomas Heller ee130b72f8 Very simple test for ctypes.util.find_library on Windows. 2008-05-16 20:19:07 +00:00
Thomas Heller 95ba13fa85 Issue 1793: Add ctypes.util.find_msvcrt() function (on Windows). 2008-05-16 20:06:31 +00:00
Thomas Heller 6ad5fbb7ea Add from_buffer and from_buffer_copy class methods to ctypes types. 2008-04-25 15:44:16 +00:00
Thomas Heller 046e6a43ff Issue #2616: Implement ctypes.pointer() and ctypes.POINTER() in C for
better performance.
2008-04-14 16:10:07 +00:00
Thomas Heller 8e8ba151dd Issue #2543: Make ctypes compatible (again) with Python 2.3, 2.4, and 2.5. 2008-04-04 08:35:44 +00:00
Thomas Heller f3c0559b5e Issue 1872: Changed the struct module typecode from 't' to '?', for
compatibility with PEP3118.
2008-03-05 15:34:29 +00:00
Christian Heimes c5f05e45cf Patch #2167 from calvin: Remove unused imports 2008-02-23 17:40:11 +00:00
Thomas Heller 8982cf5484 Replace 'has_key()' with 'in'.
Replace 'raise Error, stuff' with 'raise Error(stuff)'.
2008-02-21 18:52:20 +00:00
Thomas Heller 4516451aec Make the test somewhat clearer (I hope). 2008-02-13 20:36:51 +00:00
Thomas Heller a06a1a88ee Add pickle support to ctypes types. 2008-02-13 20:21:53 +00:00
Thomas Heller 99120c4f7e Revert rev. 59925, it breaks comtypes (I need to further examine this). 2008-01-28 08:44:13 +00:00
Thomas Heller 5ca924038d Invert the checks in get_[u]long and get_[u]longlong. The intent was
to not accept float types; the result was that integer-like objects
were not accepted.

Ported from release25-maint.
2008-01-24 19:15:02 +00:00
Thomas Heller 0f75f9847a Use 'g' instead of 'D' as the ctypes typecode for c_longdouble, for
compliance with PEP 3118.
2008-01-16 20:34:37 +00:00
Thomas Heller 415c1e36a9 Raise a TypeError instead of a ValueError when too many initializers
are used in a Structure or Union constructor.
2008-01-16 19:45:51 +00:00
Thomas Heller 02ec289f3e Raise a TypeError if conflicting positional and named arguments are
passed to a Structure or Union constructor.
2008-01-16 19:37:33 +00:00
Thomas Heller 902d30752f Convert the internal ctypes array type cache to a WeakValueDict so
that array types do not live longer than needed.
2008-01-16 19:16:27 +00:00
Thomas Heller c682614df0 Raise an error instead of crashing with a segfault when a NULL
function pointer is called.

Will backport to release25-maint.
2008-01-11 19:34:06 +00:00
Thomas Heller 153038efa4 Issue #1642: Fix segfault in ctypes when trying to delete attributes. 2007-12-18 19:00:34 +00:00
Thomas Heller 03fd077482 Enable the full ctypes c_longdouble tests again. 2007-11-02 19:11:23 +00:00
Thomas Heller e7becc5007 Added unittest for calling a function with paramflags (backport from py3k branch). 2007-10-24 19:50:45 +00:00
Thomas Heller 7fee6dd2a3 On OS X, use os.uname() instead of gestalt.sysv(...) to get the
operating system version.  This allows to use ctypes when Python
was configured with --disable-toolbox-glue.
2007-10-11 19:51:32 +00:00
Thomas Heller a7f49f733b ctypes.util.find_library uses dump(1) instead of objdump(1) on Solaris.
Fixes issue #1777530; will backport to release25-maint.
2007-09-14 19:40:35 +00:00
Thomas Heller 0b7120258a Disable some tests that fail on the 'ppc Debian unstable' buildbot to
find out if they cause the segfault on the 'alpha Debian' machine.
2007-09-11 19:17:48 +00:00
Thomas Heller 2e638c3a8a Backport from py3k branch:
Add a workaround for a strange bug on win64, when _ctypes is compiled
with the SDK compiler.  This should fix the failing
Lib\ctypes\test\test_as_parameter.py test.
2007-09-07 09:33:24 +00:00
Thomas Heller 2825b2ea44 Add a 'c_longdouble' type to the ctypes module. 2007-09-07 06:32:17 +00:00
Thomas Wouters dcb3c382ac Somewhat-preliminary slice-object and extended slicing support for ctypes.
The exact behaviour of omitted and negative indices for the Pointer type may
need a closer look (especially as it's subtly different from simple slices)
but there's time yet before 2.6, and not enough before 3.0a1 :-)
2007-08-30 21:01:17 +00:00
Neal Norwitz 60b52bd4ed Fix typo in docstring (missing c in reacquire) 2007-08-26 01:08:16 +00:00
Thomas Heller fa704c6ade Fix for SF# 1701409: segfault in c_char_p of ctypes. The repr output
of c_char_p and c_wchar_p has changed as a sideeffect.
2007-07-13 17:12:23 +00:00
Thomas Heller ad0cfe3dd7 Do not try to load the GLUT library in the ctypes tests. This test
adds little value, but has a large problem on OS X, as explained in
SF# 1581906.
2007-07-13 16:50:43 +00:00
Thomas Heller 1fd1cc5be2 Add tests for _ctypes.COMError. 2007-07-13 14:18:06 +00:00
Thomas Heller 1b9e041812 Make this test work with older Python releases where struct has no 't' format character. 2007-06-08 16:10:27 +00:00
Thomas Heller b4eec28e33 Correct the name of a field in the WIN32_FIND_DATAA and WIN32_FIND_DATAW structures.
Closes bug #1726026.
2007-05-30 07:01:25 +00:00
Thomas Heller 2ebc4d8054 Oops, these tests do not run on Windows CE. 2007-05-04 19:56:32 +00:00
Thomas Heller 1ad576c267 Do not truncate 64-bit pointers to 32-bit integers.
Fixes SF #1703286, will backport to release25-maint.
2007-05-04 19:54:22 +00:00
Thomas Heller 0455214f1c Fix some ctypes test crashes, when running with a debug Python
version on win64 by using proper argtypes and restype function
attributes.
2007-05-04 07:14:39 +00:00
Neal Norwitz 0d4c06e06e Whitespace normalization. Ugh, we really need to do this more often.
You might want to review this change as it's my first time.  Be gentle. :-)
2007-04-25 06:30:05 +00:00
Thomas Heller 5dc4fe09b7 Patch #1649190: Adding support for _Bool to ctypes as c_bool, by David Remahl. 2007-03-13 20:42:52 +00:00
Thomas Heller 2456a3c02a Bug #1651235: When a tuple was passed to a ctypes function call,
Python would crash instead of raising an error.

The crash was caused by a section of code that should have been
removed long ago, at that time ctypes had other ways to pass
parameters to function calls.
2007-03-09 20:39:22 +00:00
Thomas Heller c2f7725c86 Fix bug #1646630: ctypes.string_at(buf, 0) and ctypes.wstring_at(buf, 0)
returned string up to the first NUL character.
2007-03-09 19:21:28 +00:00
Thomas Heller d059e7b423 patch #1610795: BSD version of ctypes.util.find_library, by Martin
Kammerhofer.

release25-maint backport candidate, but the release manager has to
decide.
2007-01-12 20:17:34 +00:00
Thomas Heller 572104ff5c Avoid warnings in the test suite because ctypes.wintypes cannot be
imported on non-windows systems.
2007-01-12 20:08:19 +00:00
Thomas Heller f5b5183a19 Correct the comments: the code is right. 2007-01-11 21:23:12 +00:00
Thomas Heller 8138c26a83 Fixes for 64-bit Windows: In ctypes.wintypes, correct the definitions
of HANDLE, WPARAM, LPARAM data types.  Make parameterless foreign
function calls work.
2007-01-11 21:18:56 +00:00
Thomas Heller fb9d78733e Change the ctypes version number to "1.1.0". 2007-01-10 20:12:13 +00:00