minix/servers/ds/store.h

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#ifndef _DS_STORE_H_
#define _DS_STORE_H_
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/* Type definitions for the Data Store Server. */
#include <sys/types.h>
#include <minix/config.h>
#include <minix/ds.h>
#include <minix/bitmap.h>
#include <regex.h>
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#define NR_DS_KEYS (2*NR_SYS_PROCS) /* number of entries */
#define NR_DS_SUBS (4*NR_SYS_PROCS) /* number of subscriptions */
#define NR_DS_SNAPSHOT 5 /* number of snapshots */
/* Base 'class' for the following 3 structs. */
struct data_store {
int flags;
char key[DS_MAX_KEYLEN]; /* key to lookup information */
char owner[DS_MAX_KEYLEN];
union {
unsigned u32;
struct {
void *data;
size_t length;
size_t reallen;
} mem;
struct dsi_map {
void *data;
size_t length;
void *realpointer;
void *snapshots[NR_DS_SNAPSHOT];
int sindex;
} map;
} u;
};
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struct subscription {
int flags;
char owner[DS_MAX_KEYLEN];
regex_t regex;
bitchunk_t old_subs[BITMAP_CHUNKS(NR_DS_KEYS)];
};
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#endif /* _DS_STORE_H_ */