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/* GNUPLOT - external.h */
/*[
* Copyright 2002 Stephan Boettcher
*
* Gnuplot license:
*
* Permission to use, copy, and distribute this software and its
* documentation for any purpose with or without fee is hereby granted,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.
*
* Permission to modify the software is granted, but not the right to
* distribute the complete modified source code. Modifications are to
* be distributed as patches to the released version. Permission to
* distribute binaries produced by compiling modified sources is granted,
* provided you
* 1. distribute the corresponding source modifications from the
* released version in the form of a patch file along with the binaries,
* 2. add special version identification to distinguish your version
* in addition to the base release version number,
* 3. provide your name and address as the primary contact for the
* support of your modified version, and
* 4. retain our contact information in regard to use of the base
* software.
* Permission to distribute the released version of the source code along
* with corresponding source modifications in the form of a patch file is
* granted with same provisions 2 through 4 for binary distributions.
*
* This software is provided "as is" without express or implied warranty
* to the extent permitted by applicable law.
*
* Alternative license:
*
* As an alternative to distributing code in this file under the gnuplot license,
* you may instead comply with the terms below. In this case, redistribution and
* use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer. Redistributions in binary
* form must reproduce the above copyright notice, this list of conditions and
* the following disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
]*/
#ifndef
GNUPLOT_EXTERNAL_H
# define
GNUPLOT_EXTERNAL_H
/* #if... / #include / #define collection: */
#include
"syscfg.h"
#include
"gp_types.h"
#include
"eval.h"
#ifdef
HAVE_EXTERNAL_FUNCTIONS
/* Prototypes from file "external.c" */
void
f_calle
(
union
argument
*
x
);
struct
at_type
*
external_at
(
const
char
*
);
void
external_free
(
struct
at_type
*
);
#if
defined(
_WIN32
)
# include
<windows.h>
# include
<stdio.h>
typedef
void
*
gp_dll_t
;
# define
DLL_PATHSEP
"\\"
# define
DLL_EXT
".dll"
# define
DLL_OPEN
(
f
) dll_open_w(f);
# define
DLL_CLOSE
(
dl
) ((void)FreeLibrary((HINSTANCE)dl))
# define
DLL_SYM
(
dl
,
sym
) ((void *)GetProcAddress((HINSTANCE)dl, (sym)))
# define
DLL_ERROR
(
dl
) "dynamic library error"
#elif
defined(
HAVE_DLFCN_H
)
# include
<dlfcn.h>
typedef
void
*
gp_dll_t
;
# define
DLL_PATHSEP
"/"
# define
DLL_EXT
".so"
# define
DLL_OPEN
(
f
) dlopen((f), RTLD_NOW);
# define
DLL_CLOSE
(
dl
) dlclose(dl)
# define
DLL_SYM
(
dl
,
sym
) dlsym((dl),(sym))
# define
DLL_ERROR
(
dl
) dlerror()
#elif
defined(
HAVE_DL_H
)
# include
<dl.h>
typedef
shl_t
gp_dll_t
;
# define
DLL_PATHSEP
"/"
# define
DLL_EXT
".so"
# define
DLL_OPEN
(
f
) shl_load((f), BIND_IMMEDIATE, 0);
# define
DLL_CLOSE
(
dl
) shl_unload(dl)
__inline__
static
DLL_SYM
(
gp_dll_t
dl
,
const
char
*
sym
)
{
void
*
a
;
if
(
shl_findsym
(
&
dl
,
sym
,
TYPE_PROCEDURE
,
&
a
))
return
a
;
else
return
0x0
;
}
# define
DLL_ERROR
(
dl
) strerror(errno)
#else
/* No DLL */
# error
"HAVE_EXTERNAL_FUNCTIONS requires a DLL lib"
#endif
/* No DLL */
#endif
/* HAVE_EXTERNAL_FUNCTIONS */
#endif
/* GNUPLOT_EXTERNAL_H */
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