2008-08-06 11:15:24 -07:00
|
|
|
/* EINA - EFL data type library
|
|
|
|
* Copyright (C) 2007-2008 Jorge Luis Zapata Muga
|
|
|
|
*
|
|
|
|
* This library is free software; you can redistribute it and/or
|
|
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
|
|
* License as published by the Free Software Foundation; either
|
|
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
|
|
*
|
|
|
|
* This library is distributed in the hope that it will be useful,
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
|
* Lesser General Public License for more details.
|
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
|
|
* License along with this library;
|
|
|
|
* if not, see <http://www.gnu.org/licenses/>.
|
|
|
|
*/
|
|
|
|
|
2008-08-28 00:46:42 -07:00
|
|
|
#ifdef HAVE_CONFIG_H
|
|
|
|
# include "config.h"
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#include <stdlib.h>
|
|
|
|
|
2009-08-28 05:03:34 -07:00
|
|
|
#include "eina_config.h"
|
2008-07-30 05:46:55 -07:00
|
|
|
#include "eina_private.h"
|
2009-09-06 15:21:56 -07:00
|
|
|
|
|
|
|
/* undefs EINA_ARG_NONULL() so NULL checks are not compiled out! */
|
2008-12-26 10:31:14 -08:00
|
|
|
#include "eina_safety_checks.h"
|
2009-08-28 05:03:34 -07:00
|
|
|
#include "eina_lalloc.h"
|
2008-07-30 05:46:55 -07:00
|
|
|
|
2008-08-28 00:46:42 -07:00
|
|
|
/*============================================================================*
|
2010-07-27 19:37:05 -07:00
|
|
|
* Local *
|
|
|
|
*============================================================================*/
|
2008-08-28 00:46:42 -07:00
|
|
|
|
2008-09-23 08:57:57 -07:00
|
|
|
/**
|
|
|
|
* @cond LOCAL
|
|
|
|
*/
|
|
|
|
|
2008-07-30 09:34:54 -07:00
|
|
|
struct _Eina_Lalloc
|
2008-07-30 05:46:55 -07:00
|
|
|
{
|
2010-07-27 19:37:05 -07:00
|
|
|
void *data;
|
|
|
|
int num_allocated;
|
|
|
|
int num_elements;
|
|
|
|
int acc;
|
|
|
|
Eina_Lalloc_Alloc alloc_cb;
|
|
|
|
Eina_Lalloc_Free free_cb;
|
2008-07-30 05:46:55 -07:00
|
|
|
};
|
|
|
|
|
2008-09-23 08:57:57 -07:00
|
|
|
/**
|
|
|
|
* @endcond
|
|
|
|
*/
|
|
|
|
|
2008-08-28 00:46:42 -07:00
|
|
|
/*============================================================================*
|
2010-07-27 19:37:05 -07:00
|
|
|
* Global *
|
|
|
|
*============================================================================*/
|
2008-08-28 00:46:42 -07:00
|
|
|
|
|
|
|
/*============================================================================*
|
2010-07-27 19:37:05 -07:00
|
|
|
* API *
|
|
|
|
*============================================================================*/
|
2008-08-28 00:46:42 -07:00
|
|
|
|
2008-07-30 05:46:55 -07:00
|
|
|
/**
|
2008-09-23 08:57:57 -07:00
|
|
|
* @addtogroup Eina_Lalloc_Group Lazy allocator
|
|
|
|
*
|
|
|
|
* @{
|
2008-07-30 05:46:55 -07:00
|
|
|
*/
|
2008-09-23 08:57:57 -07:00
|
|
|
|
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 04:35:48 -08:00
|
|
|
EINA_API Eina_Lalloc *eina_lalloc_new(void *data,
|
2010-07-27 19:37:05 -07:00
|
|
|
Eina_Lalloc_Alloc alloc_cb,
|
|
|
|
Eina_Lalloc_Free free_cb,
|
|
|
|
int num_init)
|
2008-07-30 05:46:55 -07:00
|
|
|
{
|
2010-07-27 19:37:05 -07:00
|
|
|
Eina_Lalloc *a;
|
|
|
|
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(alloc_cb, NULL);
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(free_cb, NULL);
|
|
|
|
|
|
|
|
a = calloc(1, sizeof(Eina_Lalloc));
|
|
|
|
a->data = data;
|
|
|
|
a->alloc_cb = alloc_cb;
|
|
|
|
a->free_cb = free_cb;
|
|
|
|
if (num_init > 0)
|
|
|
|
{
|
|
|
|
a->num_allocated = num_init;
|
|
|
|
a->alloc_cb(a->data, a->num_allocated);
|
|
|
|
}
|
|
|
|
|
|
|
|
return a;
|
2008-07-30 05:46:55 -07:00
|
|
|
}
|
|
|
|
|
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 04:35:48 -08:00
|
|
|
EINA_API void eina_lalloc_free(Eina_Lalloc *a)
|
2008-09-23 08:57:57 -07:00
|
|
|
{
|
2010-07-27 19:37:05 -07:00
|
|
|
EINA_SAFETY_ON_NULL_RETURN(a);
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN(a->free_cb);
|
|
|
|
a->free_cb(a->data);
|
|
|
|
free(a);
|
2008-09-23 08:57:57 -07:00
|
|
|
}
|
|
|
|
|
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 04:35:48 -08:00
|
|
|
EINA_API Eina_Bool eina_lalloc_element_add(Eina_Lalloc *a)
|
2008-07-30 05:46:55 -07:00
|
|
|
{
|
2010-07-27 19:37:05 -07:00
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(a, EINA_FALSE);
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(a->alloc_cb, EINA_FALSE);
|
|
|
|
|
|
|
|
if (a->num_elements == a->num_allocated)
|
|
|
|
{
|
|
|
|
if (a->alloc_cb(a->data, (1 << a->acc)) == EINA_TRUE)
|
|
|
|
{
|
|
|
|
a->num_allocated = (1 << a->acc);
|
|
|
|
a->acc++;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
return EINA_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
a->num_elements++;
|
|
|
|
|
|
|
|
return EINA_TRUE;
|
2008-07-30 05:46:55 -07:00
|
|
|
}
|
|
|
|
|
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 04:35:48 -08:00
|
|
|
EINA_API Eina_Bool eina_lalloc_elements_add(Eina_Lalloc *a, int num)
|
2008-07-30 05:46:55 -07:00
|
|
|
{
|
2010-07-27 19:37:05 -07:00
|
|
|
int tmp;
|
|
|
|
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(a, EINA_FALSE);
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(a->alloc_cb, EINA_FALSE);
|
|
|
|
|
|
|
|
tmp = a->num_elements + num;
|
|
|
|
if (tmp > a->num_allocated)
|
|
|
|
{
|
|
|
|
int allocated;
|
|
|
|
int acc;
|
|
|
|
|
|
|
|
allocated = a->num_allocated;
|
|
|
|
acc = a->acc;
|
|
|
|
|
|
|
|
while (tmp > allocated)
|
|
|
|
{
|
|
|
|
allocated = (1 << acc);
|
|
|
|
acc++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (a->alloc_cb(a->data, allocated) == EINA_TRUE)
|
|
|
|
{
|
|
|
|
a->num_allocated = allocated;
|
|
|
|
a->acc = acc;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
return EINA_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
a->num_elements += num;
|
|
|
|
|
|
|
|
return EINA_TRUE;
|
2008-07-30 05:46:55 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2008-09-23 08:57:57 -07:00
|
|
|
* @}
|
2008-07-30 05:46:55 -07:00
|
|
|
*/
|