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/**
* coopgammad -- Cooperative gamma server
* Copyright (C) 2016 Mattias Andrée (maandree@kth.se)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SERVERS_KERNEL_H
#define SERVERS_KERNEL_H
#ifndef GCC_ONLY
# if defined(__GNUC__) && !defined(__clang__)
# define GCC_ONLY(...) __VA_ARGS__
# else
# define GCC_ONLY(...) /* nothing */
# endif
#endif
/**
* Get the pathname of the socket
*
* @return The pathname of the socket, `NULL` on error
*/
GCC_ONLY(__attribute__((malloc)))
char* get_socket_pathname(void);
/**
* Get the pathname of the PID file
*
* @return The pathname of the PID file, `NULL` on error
*/
GCC_ONLY(__attribute__((malloc)))
char* get_pidfile_pathname(void);
/**
* Get the pathname of the state file
*
* @return The pathname of the state file, `NULL` on error
*/
GCC_ONLY(__attribute__((malloc)))
char* get_state_pathname(void);
/**
* Create PID file
*
* @param pidpath The pathname of the PID file
* @return Zero on success, -1 on error,
* -2 if the service is already running
*/
GCC_ONLY(__attribute__((nonnull)))
int create_pidfile(char* pidpath);
/**
* Create socket and start listening
*
* @param socketpath The pathname of the socket
* @return Zero on success, -1 on error
*/
GCC_ONLY(__attribute__((nonnull)))
int create_socket(const char* socketpath);
/**
* Close and unlink the socket
*
* @param socketpath The pathname of the socket
*/
GCC_ONLY(__attribute__((nonnull)))
void close_socket(const char* socketpath);
#endif
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