Commit Graph

11 Commits

Author SHA1 Message Date
Felipe Magno de Almeida ccc1849263 eina: Rename EAPI macro to EINA_API in Eina library
Summary:
Patch from a series of patches to rename EAPI symbols to specific
library DSOs.

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: jptiz, lucas, woohyun, vtorri, raster

Reviewed By: jptiz, lucas, vtorri

Subscribers: ProhtMeyhet, cedric, #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 09:42:47 -03:00
Cedric BAIL ba80dfe3f4 eina: remove eina_promise_data_get has it lead to risky use.
It seems that use of eina_promise_data_get lead to mostly missuse. As it
duplicate other infrastructure which do not have the same problem. So better
remove it and if we need it back, we can just revert this patch later.

Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Differential Revision: https://phab.enlightenment.org/D7578
2019-01-16 16:10:30 -08:00
Marcel Hollerbach 7968a0d0b9 move efreet xdg envvars to eina
Summary:
The contents of the XDG_ env vars are also usefull for eina subsystems,
thus we should init those env vars here.

Depends on D6751

Reviewers: zmike, stefan_schmidt, #committers

Reviewed By: zmike, #committers

Subscribers: #reviewers, cedric, #committers, zmike

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D6744
2018-08-20 12:57:57 -04:00
Bryce Harrington bdb9a41750 eina: Spelling fixes
Reviewers: devilhorns, Hermet

Reviewed By: Hermet

Subscribers: cedric, #committers, zmike

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D6570
2018-07-12 16:27:15 +09:00
Carsten Haitzler 1bdd9e4dd1 ecore - a different take on efl.app class as a super class to efl.loop
so the MAIN loop is actually an efl.app object. which inherits from
efl.loop. the idea is that other loops in threads will not be efl.app
objects. thread on the creator side return an efl.thread object.
inside the thread, like the mainloop, there is now an efl.appthread
object that is for all non-main-loop threads.

every thread (main loop or child) when it spawns a thread is the
parent. there are i/o pipes from parnet to child and back. so parents
are generally expected to, if they want to talk to child thread, so
use the efl.io interfaces on efl.thread, and the main loop's elf.app
class allows you to talk to stdio back to the parent process like the
efl.appthread does the same using the efl.io interfaces to talk to its
parent app or appthread. it's symmetrical

no tests here - sure. i have been holding off on tests until things
settle. that's why i haven't done them yet. those will come back in a
subsequent commit

for really quick examples on using this see:

https://phab.enlightenment.org/F2983118
https://phab.enlightenment.org/F2983142

they are just my test code for this.

Please see this design document:

https://phab.enlightenment.org/w/efl-loops-threads/
2018-03-03 13:40:33 +09:00
Carsten Haitzler 411e140eaf eina vpath - improve docs and add app.tmp and usr.tmp vpaths too
definitely kaes the docs better with lots of sample paths and some
indication of what these may map to in real life.
2018-02-23 16:26:30 +09:00
Cedric Bail d57b9a7d14 eina: make eina_vpath_interface_app_set an internal function.
I am wondering if this one shouldn't even be a private one and
directly used by eina_prefix.
2018-02-22 15:26:28 -08:00
Cedric Bail b575c41676 eina: make eina_vpath_interface_user_set an internal API. 2018-02-22 14:57:36 -08:00
Vincent Torri f5b01ac5ce all: Simplify definition of EAPI
This will help in the transition from Autotools to Meson. This has been
tested on Windows for which EFL_XXX_BUILD were first introduced.
2018-01-18 18:04:03 +09:00
Cedric BAIL 98aa1a4eb1 eina: fixup EAPI definition. 2017-12-19 09:54:45 -08:00
Jean-Philippe Andre 29ce7550eb eina: Add missing eina_internal.h 2017-12-19 10:20:18 +09:00