From: hx <silent2600@gmail.com>
To: Philipp Stephani <p.stephani2@gmail.com>, emacs-devel@gnu.org
Subject: Re: how to keep a copy of emacs_env or ert in module ?
Date: Tue, 13 Sep 2016 08:02:49 +0800 [thread overview]
Message-ID: <CAALPCHsHEbvt68CCP1nmHwQoC24pzoGRDvMuOAD65mAbzkdv0w@mail.gmail.com> (raw)
In-Reply-To: <CAArVCkRnXwKhpEDQQX-djEecuv=GwK6nv5r6JgSPwnMrLniXBA@mail.gmail.com>
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On Sun, Sep 11, 2016 at 4:02 PM, Philipp Stephani <p.stephani2@gmail.com>
wrote:
>
>
> hx <silent2600@gmail.com> schrieb am So., 11. Sep. 2016 um 06:30 Uhr:
>
>> is it possible to keep a copy of the *env in module ?
>>
>>
> No. emacs_env, emacs_runtime, and emacs_value objects are only valid
> within the dynamic extent of the function they are created/passed in. You
> can't keep them around. The only exception are global references, created
> by make_global_ref.
>
instead of copy the pointer, I copy the struct content:
emacs_env genvo;
emacs_env *genv = &genvo;
int
emacs_module_init(struct emacs_runtime *ert)
{
emacs_env *env = ert->get_environment(ert);
genvo = *env;
...
}
it is working.
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next prev parent reply other threads:[~2016-09-13 0:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-11 4:28 how to keep a copy of emacs_env or ert in module ? hx
2016-09-11 6:41 ` Andreas Schwab
2016-09-11 8:02 ` Philipp Stephani
2016-09-13 0:02 ` hx [this message]
2016-09-13 6:18 ` Philipp Stephani
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