utility.h

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// Copyright 2017 Space HAUC Command and Data Handling
// This file is part of octopOS which is released under AGPLv3.
// See file LICENSE.txt or go to <http://www.gnu.org/licenses/> for full
// license details.

#ifndef INCLUDE_UTILITY_H_
#define INCLUDE_UTILITY_H_

#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/msg.h>
#include <sys/sem.h>

#include <exception>
#include <system_error>                                                           // NOLINT
#include <cerrno>


#define MEMKEY 0x45861534
#define SEMKEY 0x45861534
#define MSGKEY 0x45861534

#define MSGLEN 126
#define SHMSIZE 4096

const unsigned NUMMODULES = 20;

const unsigned SUB_BIT = 0x20000000;
const unsigned TEMP_BIT = 0x40000000;

const unsigned CREATE_PUB = 1;
const unsigned PUBLISH_CODE = 2;
const unsigned CREATE_SUB = 3;

typedef intptr_t generic_t;
typedef long octopOS_id_t;                                                        // NOLINT
typedef uint sem_id_t;

typedef struct {
    unsigned rw_array[2];
} shm_object;

typedef struct {
    long type;                                                                    // NOLINT
    char text[MSGLEN];
} message_buffer;

union semun {
    int val;
    struct semid_ds *buf;
    unsigned short *array;                                                        // NOLINT
};

extern intptr_t* connect_shm();

extern int p(int sem, int counter);

extern int v(int sem, int counter);

extern int semsetall(int sem_group, int number_in_group, int value);

#endif  // INCLUDE_UTILITY_H_