minix/servers/ds/store.h
David van Moolenbroek 80bd109cd3 libsys: various updates
- move system calls for use by services from libminlib into libsys;
- move srv_fork(2) and srv_kill(2) from RS and into libsys;
- replace getprocnr(2) with sef_self(3);
- rename previous getnprocnr(2) to getprocnr(2);
- clean up getepinfo(2);
- change all libsys calls that used _syscall to use _taskcall, so as
  to avoid going through errno to pass errors; this is already how
  most calls work anyway, and many of the calls previously using
  _syscall were already assumed to return the actual error;
- initialize request messages to zero, for future compatibility
  (note that this does not include PCI calls, which are in need of a
  much bigger overhaul, nor kernel calls);
- clean up more of dead DS code as a side effect.

Change-Id: I8788f54c68598fcf58e23486e270c2d749780ebb
2014-03-01 09:05:00 +01:00

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797 B
C

#ifndef _DS_STORE_H_
#define _DS_STORE_H_
/* Type definitions for the Data Store Server. */
#include <sys/types.h>
#include <minix/config.h>
#include <minix/ds.h>
#include <minix/bitmap.h>
#include <minix/param.h>
#include <regex.h>
#define NR_DS_KEYS (2*NR_SYS_PROCS) /* number of entries */
#define NR_DS_SUBS (4*NR_SYS_PROCS) /* number of subscriptions */
/* 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;
} u;
};
struct subscription {
int flags;
char owner[DS_MAX_KEYLEN];
regex_t regex;
bitchunk_t old_subs[BITMAP_CHUNKS(NR_DS_KEYS)];
};
#endif /* _DS_STORE_H_ */