Commit Graph

6 Commits

Author SHA1 Message Date
Carsten Haitzler 39b48ca430 Revert "fix warnings about redefinting EWAPI etc. due to windows EAPI changes"
This reverts commit e2d6691d52.
This reverts commit c02b796fdb.
This reverts commit 6c969f6b7d.
This reverts commit 74204bccd7.
This reverts commit 1304d95717.
This reverts commit 7c85be9674.

revert the EAPI changes that break cxx bindings build. sorry :( more
fixes needed than i thought
2021-05-26 15:46:25 +01:00
Felipe Magno de Almeida 74204bccd7 ecore: Rename EAPI macro to ECORE_API in Ecore library
Summary:
=  The Rationale =

EAPI was designed to be able to pass
`__attribute__ ((visibility ("default")))` for symbols with
GCC, which would mean that even if -fvisibility=hidden was used
when compiling the library, the needed symbols would get exported.

MSVC __almost__ works like GCC (or mingw) in which you can
declare everything as export and it will just work (slower, but
it will work). But there's a caveat: global variables will not
work the same way for MSVC, but works for mingw and GCC.

For global variables (as opposed to functions), MSVC requires
correct DSO visibility for MSVC: instead of declaring a symbol as
export for everything, you need to declare it as import when
importing from another DSO and export when defining it locally.

With current EAPI definitions, we get the following example
working in mingw and MSVC (observe it doesn't define any global
variables as exported symbols).

Example 1:
dll1:
```
EAPI void foo(void);

EAPI void bar()
{
  foo();
}
```
dll2:
```
EAPI void foo()
{
  printf ("foo\n");
}
```

This works fine with API defined as __declspec(dllexport) in both
cases and for gcc defining as
`__atttribute__((visibility("default")))`.

However, the following:
Example 2:

dll1:

```
EAPI extern int foo;
EAPI void foobar(void);

EAPI void bar()
{
  foo = 5;
  foobar();
}
```

dll2:

```
EAPI int foo = 0;
EAPI void foobar()
{
  printf ("foo %d\n", foo);
}
```

This will work on mingw but will not work for MSVC. And that's why
EAPI is the only solution that worked for MSVC.

Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com>
Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev>
Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com>

Reviewers: vtorri, raster

Reviewed By: raster

Subscribers: raster, cedric, #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D12271
2021-05-23 20:47:23 +01:00
Carsten Haitzler 8e98c7eef9 cmdline iface - fix to consume input array AND strings totally
strings often enough are generated e.g. via "%s/%s" or "%i" or similar
etc. ... i have poitned to examples, so move to make all strings
consistently stringshared, fix a bug added to the efl thread code
where it accessed and freed array even tho array was consumed (but not
strings) in the set, and the code used free to consume not
stringshare_del. fix other code and tests to match

EXCTLY the kind of bugs and mistakes with this kind of design that i
said would happen more often just happened...
2019-02-15 10:21:04 +00:00
Marcel Hollerbach 3b262340ba Revert "Revert command line array object because it's broken by design"
This reverts commit a57c7f7510.

I pretty much hate to just revert your revert, but you failed to read my
replies, and failed to understand what i was talking about.

And YES we talked at fosdem about the platform issue, and do you
remember my answer, that back in time this might be the case, today is
different freebsd suppoerts setenv, and for windows we have a setenv
implementation in evil. And yes, vtorri also created a issue how bad and
evil this commit is, however, i still fail to see the issue since setenv
unsetenv and clearenv usages are taken as needed. (T7693)

The ownership question is answered in
https://phab.enlightenment.org/D7516#137367.

Can we please get into a state of technical discussions, and not *oh
shit, i am going to revert this* this has been in review for a long
time, a lots of people have tested it, we discussed things on it, and
there was 3 weeks of no reply from you.

The issues that exist will be dealed with. Feel free to create tasks if
you want :)
2019-02-12 21:42:33 +01:00
Carsten Haitzler a57c7f7510 Revert command line array object because it's broken by design
Revert "ecore: get rid of commands in efl_task."
  This reverts commit 616381e9cf.
Revert "ecore: here comes a command line object"
  This reverts commit 48e5684b3c.

1. this is broken:

EOLIAN static const char*
_efl_core_command_line_command_get(const Eo *obj EINA_UNUSED, Efl_Core_Command_Line_Data *pd)
{
   return eina_strdup(pd->string_command);
}

it returns a const char * BUT it duplicates it on return. no. a big
fat honking NO. return a char * or don't duplicate. pick.

2. _efl_core_command_line_command_array_set() is broken by design. it
accepts an array of strings, but the strings are owned by the caller
who creates the array (requiring they free them up themselves after
this call) but the array becomes owned by the callee. the code here frees the
incoming array but doesn't care about the string content of it. it's
leak heaven waiting to happen (or bugs when someone wants to access
the array they create to walk it to free the strings they put into it
after it is set).

i brought this up and it was dismissed. now exactly he issue i brought
up is there with mixed ownership and the added complexity as well as
transfer of some ownership but not others.

go back and think about this so it isn't broken by design.
2019-02-12 19:54:35 +00:00
Marcel Hollerbach 48e5684b3c ecore: here comes a command line object
the mixin for now can carry a command, which can be setted as an string.
The string is then parsed again, this is done in order to make sure that
everything that needs escaping really is escaped or parsed correctly.

Differential Revision: https://phab.enlightenment.org/D7516
2019-02-12 11:19:28 +01:00