//     services.h


#ifndef __SERVICESH
#define __SERVICESH


#ifndef ERROR
#define ERROR -1
#endif
#ifndef FALSE
#define FALSE (0)
#endif
#ifndef TRUE
#define TRUE (1)
#endif

#define FREE 0
#define INUSE 1
#define QUEUED 2
#define PROCESSING 3
#define DONE 4

#define OK 0
#define VALID 1


//    define procedure prototypes


void report_version();

#if defined MASTER || defined MERGE
// void claim_link_buffer(int);
// void release_link_buffer(int);
#else
// void claim_link_buffer(void);
// void release_link_buffer(void);
#endif

#ifdef LINK
int obtain_data_buffer(int);
int queue_data_buffer(int, int);
int release_data_buffer(int, int);
#endif

#ifdef MERGE
int release_data_buffer(int, int);
#endif

void * alloc_data_area(int, int);    //   id , size (bytes)

int wakeup_merge();
int wakeup_master();
int wait_for_wakeup();
void wait_for_master();
void wakeup(int);
void sig_init();



#endif