/**
 * Copyright (c) 2013 Larisa Grigore <larisagrigore@gmail.com>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 SYSVD_UTILS_H
#define SYSVD_UTILS_H

#define SOCKET_FD_IDX           0

#define POLLPIPE        (POLLIN | POLLPRI | POLLRDNORM | POLLRDBAND)

#define CONNEXION_CLOSED        0

#define SHMSEG_FREE             0x0200
#define SHMSEG_REMOVED          0x0400
#define SHMSEG_ALLOCATED        0x0800
#define SHMSEG_WANTED           0x1000

#define DIRPATH         "/var/run/sysvipc"

#define SHM_NAME        "shm"
#define SEM_NAME        "sem"
#define MSG_NAME        "msg"
#define UNDO_NAME       "undo"

#include <sys/queue.h>

struct client {
        //int fd[2];
        int sock;
        pid_t pid;
        int undoid;
        LIST_HEAD(_ids_attached, id_attached) ids_attached;
};

struct client_entry {
        struct client                   *client;
        LIST_ENTRY(client_entry)        client_link;
};

struct pid_attached {
        int pid;
        LIST_ENTRY(pid_attached)        link;
};

struct id_attached {
        int shmid;
        LIST_ENTRY(id_attached) link;
};

struct shm_handle {
        int type;
        int fd;
        LIST_HEAD(_attached_list, pid_attached) attached_list;
};

/* Print wrappers. */
void sysvd_print_err(const char *fmt, ...) __printflike(1, 2);
void sysvd_print(const char *fmt, ...) __printflike(1, 2);

#endif