From: Pedro Alves <palves@redhat.com>
To: Andrew Burgess <andrew.burgess@embecosm.com>,
Tom Tromey <tom@tromey.com>
Cc: gdb-patches@sourceware.org
Subject: Re: [PATCH 00/12] remove some cleanups using a cleanup function
Date: Mon, 14 Jan 2019 15:39:00 -0000 [thread overview]
Message-ID: <52c08949-2dba-f1e8-5ddf-b4174fe21283@redhat.com> (raw)
In-Reply-To: <20190114110601.GL3456@embecosm.com>
On 01/14/2019 11:06 AM, Andrew Burgess wrote:
> * Tom Tromey <tom@tromey.com> [2019-01-12 15:41:43 -0700]:
>
>> Andrew> How do you think this compares to your original patches? Any interest
>> Andrew> in this approach?
>>
>> Tom> Yes, let's do this.
>>
>> I happened to stumble across the message for commit
>> 9bcb1f1630b05594fa86bfd017639cfcc966b11c today. It references
>>
>> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4189.pdf
>>
>> ... which proposes a generic scope guard class along these lines.
>> So, now I wonder if we should just reuse that paper's contents, but in
>> the gdb namespace.
Ah, I was just about to point at that paper, and at Alexandrescu's
ScopeGuard/SCOPE_EXIT.
>
> Interesting, there's a revised version here:
>
> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0052r5.pdf
>
> Which includes details about how the technique can be expanded to
> effectively give us `cleanup_on_failure` and/or `cleanup_on_success`,
> which would allow us to completely remove the use of the current
> `.reset ()` or `.cancel ()` functions.
IIRC, to implement that correctly we'd need std::uncaught_exceptions() [plural, C++17],
the older std::uncaught_exception() [singular] is flawed.
See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4152.pdf .
Thanks,
Pedro Alves
next prev parent reply other threads:[~2019-01-14 15:39 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-12 11:50 Andrew Burgess
2019-01-09 3:34 ` Tom Tromey
2019-01-09 3:34 ` [PATCH 09/12] Remove remaining cleanup from fetch_inferior_event Tom Tromey
2019-01-09 3:34 ` [PATCH 12/12] Use cleanup_function in regcache.c Tom Tromey
2019-01-09 3:34 ` [PATCH 06/12] Remove clear_symtab_users_cleanup Tom Tromey
2019-01-09 3:34 ` [PATCH 08/12] Remove cleanup from stop_all_threads Tom Tromey
2019-01-09 3:34 ` [PATCH 10/12] Update an obsolete cleanup comment Tom Tromey
2019-01-09 3:34 ` [PATCH 03/12] Remove make_bpstat_clear_actions_cleanup Tom Tromey
2019-01-09 3:34 ` [PATCH 07/12] Remove delete_just_stopped_threads_infrun_breakpoints_cleanup Tom Tromey
2019-01-09 3:34 ` [PATCH 04/12] Remove cleanup_delete_std_terminate_breakpoint Tom Tromey
2019-01-09 3:34 ` [PATCH 05/12] Remove cleanup from linux-nat.c Tom Tromey
2019-01-09 3:34 ` [PATCH 01/12] Remove delete_longjmp_breakpoint_cleanup Tom Tromey
2019-01-09 3:34 ` [PATCH 11/12] Update cleanup comment in ui-out.h Tom Tromey
2019-01-09 3:36 ` [PATCH 02/12] Remove remaining cleanup from breakpoint.c Tom Tromey
2019-01-11 6:56 ` [PATCH 00/12] remove some cleanups using a cleanup function Joel Brobecker
2019-01-12 11:50 ` [PATCH 4/4] gdb/testsuite: Don't allow paths to appear in test name Andrew Burgess
2019-01-12 11:50 ` [PATCH 2/4] gdb: Remove remaining cleanup from breakpoint.c Andrew Burgess
2019-01-12 11:50 ` [PATCH 1/4] gdb: Remove delete_longjmp_breakpoint_cleanup Andrew Burgess
2019-01-12 11:50 ` [PATCH 3/4] gdb: Remove make_bpstat_clear_actions_cleanup Andrew Burgess
2019-01-12 15:54 ` [PATCH 00/12] remove some cleanups using a cleanup function Tom Tromey
2019-01-12 22:41 ` Tom Tromey
2019-01-14 11:06 ` Andrew Burgess
2019-01-14 15:39 ` Pedro Alves [this message]
2019-01-14 20:37 ` Pedro Alves
2019-01-15 9:42 ` Andrew Burgess
[not found] ` <87ef9dttfl.fsf@tromey.com>
2019-01-15 23:43 ` Pedro Alves
2019-01-16 11:19 ` Andrew Burgess
2019-01-16 23:10 ` Pedro Alves
2019-01-17 21:39 ` Tom Tromey
2019-01-21 20:12 ` Pedro Alves
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