Mercurial > hg > freeDiameter-proposed
view include/freeDiameter/extension.h @ 1492:a89913941dcf
extensions: hide symbols by default
Hide extension.fdx symbols by default, by setting the
target property <LANG>C_VISIBILITY_PRESET hidden.
This requires cmake 2.8+
Explicitly export fd_ext_init() and fd_ext_fini(),
using gcc or clang's __attribute__((visibility()))
author | Luke Mewburn <luke@mewburn.net> |
---|---|
date | Mon, 30 Mar 2020 15:31:48 +1100 |
parents | 1e1d6f94cd94 |
children | 449b766ded50 |
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/********************************************************************************************************* * Software License Agreement (BSD License) * * Author: Sebastien Decugis <sdecugis@freediameter.net> * * * * Copyright (c) 2013, WIDE Project and NICT * * All rights reserved. * * * * Redistribution and use of this software 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. * * * * * Neither the name of the WIDE Project or NICT nor the * * names of its contributors may be used to endorse or * * promote products derived from this software without * * specific prior written permission of WIDE Project and * * NICT. * * * * 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 OWNER 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 _EXTENSION_H #define _EXTENSION_H #ifdef __cplusplus extern "C" { #endif /* Include definition of freeDiameter API */ #include <freeDiameter/freeDiameter-host.h> #include <freeDiameter/libfdcore.h> /* Macro that define the entry point of the extension */ #define EXTENSION_ENTRY(_name, _function, _depends...) \ const char *fd_ext_depends[] = { _name , ## _depends , NULL }; \ static int extension_loaded = 0; \ \ __attribute__((visibility("default"))) \ int fd_ext_init(int major, int minor, char * conffile) { \ if ((major != FD_PROJECT_VERSION_MAJOR) \ || (minor != FD_PROJECT_VERSION_MINOR)) { \ TRACE_ERROR("This extension (" _name ") was compiled for a different version of freeDiameter."); \ TRACE_DEBUG(INFO, "daemon %d.%d != ext %d.%d", \ major, minor, \ FD_PROJECT_VERSION_MAJOR, FD_PROJECT_VERSION_MINOR); \ return EINVAL; \ } \ if (extension_loaded) { \ TRACE_ERROR("Extension (" _name ") cannot be loaded twice!"); \ return ENOTSUP; \ } \ extension_loaded++; \ return (_function)(conffile); \ } /* Optional exit point (finish function) of the extension */ __attribute__((visibility("default"))) void fd_ext_fini(void); #ifdef __cplusplus } #endif #endif /* _EXTENSION_H */