From: Tom Tromey <tom@tromey.com>
To: Pedro Alves <palves@redhat.com>
Cc: Tom Tromey <tom@tromey.com>, gdb-patches@sourceware.org
Subject: Re: [RFA 16/20] Use gdbpy_enter in gdbpy_get_matching_xmethod_workers
Date: Fri, 11 Nov 2016 03:19:00 -0000 [thread overview]
Message-ID: <877f8ak8ne.fsf@tromey.com> (raw)
In-Reply-To: <8356ffb0-722d-c6fb-c063-e18c24b3ccab@redhat.com> (Pedro Alves's message of "Thu, 10 Nov 2016 23:19:46 +0000")
>>>>> "Pedro" == Pedro Alves <palves@redhat.com> writes:
>> - Py_DECREF (temp);
>> - Py_DECREF (pspace_matchers);
Pedro> I'm a little confused here. Don't we still need to account for
Pedro> these two Py_DECREFs?
The patch reads a little messily. The new code is:
gdbpy_reference pspace_matchers (pspy_get_xmethods (py_progspace, NULL));
gdbpy_reference temp (PySequence_Concat (py_xmethod_matcher_list.get (),
pspace_matchers.get ()));
if (temp == NULL)
{
gdbpy_print_stack ();
return EXT_LANG_RC_ERROR;
}
py_xmethod_matcher_list = temp;
So the decrefs are accounted for by the destructors; and that assignment
at the end encodes an incref via the copy constructor. Moving here
would have been a valid choice as well, like:
py_xmethod_matcher_list = std::move (temp);
... though I deleted the move constructor since it wasn't used in the
earlier series and Jan pointed out that it had a bug.
Tom
next prev parent reply other threads:[~2016-11-11 3:19 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-10 22:20 [RFA 00/20] more use of C++ in the Python layer Tom Tromey
2016-11-10 22:20 ` [RFA 13/20] Use gdbpy_enter in py-prettyprint.c Tom Tromey
2016-11-10 22:20 ` [RFA 06/20] Use gdbpy_enter in py-objfile.c Tom Tromey
2016-11-10 22:20 ` [RFA 02/20] Use gdbpy_enter in py-breakpoint.c Tom Tromey
2016-11-10 22:20 ` [RFA 09/20] Use gdbpy_enter in py-type.c Tom Tromey
2016-11-10 22:20 ` [RFA 17/20] Use gdbpy_reference in invoke_match_method Tom Tromey
2016-11-10 22:20 ` [RFA 16/20] Use gdbpy_enter in gdbpy_get_matching_xmethod_workers Tom Tromey
2016-11-10 23:19 ` Pedro Alves
2016-11-11 3:19 ` Tom Tromey [this message]
2016-11-11 3:24 ` Pedro Alves
2016-11-12 17:09 ` Tom Tromey
2016-11-10 22:20 ` [RFA 11/20] Use gdbpy_enter in py-unwind.c Tom Tromey
2016-11-10 22:20 ` [RFA 10/20] Use gdbpy_enter in py-xmethods.c Tom Tromey
2016-11-10 22:20 ` [RFA 03/20] Use gdbpy_enter in py-cmd.c Tom Tromey
2016-11-10 22:20 ` [RFA 15/20] Use gdbpy_enter in python_interactive_command Tom Tromey
2016-11-10 22:20 ` [RFA 04/20] Use gdbpy_enter in py-finishbreakpoint.c Tom Tromey
2016-11-10 22:20 ` [RFA 01/20] Introduce gdbpy_enter Tom Tromey
2016-11-10 23:19 ` Pedro Alves
2016-11-10 22:20 ` [RFA 08/20] Use gdbpy_enter in python.c Tom Tromey
2016-11-10 22:20 ` [RFA 07/20] Use gdbpy_enter in py-progspace.c Tom Tromey
2016-11-10 22:20 ` [RFA 05/20] Use gdbpy_enter in py-inferior.c Tom Tromey
2016-11-10 22:20 ` [RFA 14/20] Use gdbpy_enter in gdbpy_before_prompt_hook Tom Tromey
2016-11-10 23:19 ` Pedro Alves
2016-11-12 17:04 ` Tom Tromey
2016-11-10 22:26 ` [RFA 18/20] Use gdbpy_enter in py-xmethod.c Tom Tromey
2016-11-10 22:26 ` [RFA 20/20] Use gdbpy_enter_varobj in py-varobj.c Tom Tromey
2016-11-10 22:26 ` [RFA 12/20] Introduce htab_up and use gdbpy_enter in py-framefilter.c Tom Tromey
2016-11-10 22:26 ` [RFA 19/20] Introduce gdbpy_enter_varobj and use it Tom Tromey
2016-11-10 23:52 ` [RFA 00/20] more use of C++ in the Python layer Pedro Alves
2016-11-11 3:19 ` Tom Tromey
2016-11-12 17:24 ` Tom Tromey
2016-11-15 14:57 ` Pedro Alves
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