sigfn.h

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/*
** Copyright 2024 Maxtek Consulting
**
** Permission is hereby granted, free of charge, to any person obtaining a copy
** of this software and associated documentation files (the "Software"), to deal
** in the Software without restriction, including without limitation the rights
** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
** copies of the Software, and to permit persons to whom the Software is
** furnished to do so, subject to the following conditions:
**
** The above copyright notice and this permission notice shall be included in all
** copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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** SOFTWARE.
*/
 
#ifndef SIGFN_H
#define SIGFN_H
 
#define SIGFN_SUCCESS 0
#define SIGFN_INVALID_SIGNUM 1
#define SIGFN_INVALID_HANDLER 2
 
#include <stdlib.h>
#include <signal.h>
 
#ifdef _WIN32
#define DLL_EXPORT __declspec(dllexport)
#else
#define DLL_EXPORT
#endif
 
#ifdef __cplusplus
extern "C"
{
#endif
 
    typedef void (*sigfn_handler_func)(int signum, void *userdata);
 
    DLL_EXPORT int sigfn_handle(int signum, sigfn_handler_func handler, void *userdata);
 
    DLL_EXPORT int sigfn_ignore(int signum);
 
    DLL_EXPORT int sigfn_reset(int signum);
 
#ifdef __cplusplus
}
#endif
 
#endif