LCOM1920-T02G10

/* Prototypes and definitions for DS interface. */

#ifndef _MINIX_DS_H

#define _MINIX_DS_H

#ifdef _MINIX_SYSTEM

#include <sys/types.h>

#include <minix/endpoint.h>

/* Flags. */

#define DSF_IN_USE                0x001        /* entry is in use */

#define DSF_PRIV_RETRIEVE        0x002        /* only owner can retrieve */

#define DSF_PRIV_OVERWRITE        0x004        /* only owner can overwrite */

#define DSF_PRIV_SNAPSHOT        0x004        /* only owner can take a snapshot */

#define DSF_PRIV_SUBSCRIBE        0x008        /* only owner can subscribe */

#define DSF_TYPE_U32                0x010        /* u32 data type */

#define DSF_TYPE_STR                0x020        /* string data type */

#define DSF_TYPE_MEM                0x040        /* memory range data type */

#define DSF_TYPE_LABEL                0x100        /* label data type */

#define DSF_MASK_TYPE                0xFF0        /* mask for type flags. */

#define DSF_MASK_INTERNAL        0xFFF        /* mask for internal flags. */

#define DSF_OVERWRITE                0x01000        /* overwrite if entry exists */

#define DSF_INITIAL                0x02000        /* check subscriptions immediately */

/* DS constants. */

#define DS_MAX_KEYLEN 80        /* Max length of a key, including '\0'. */

/* DS events. */

#define DS_DRIVER_UP                1

/* ds.c */

/* U32 */

int ds_publish_u32(const char *name, u32_t val, int flags);

int ds_retrieve_u32(const char *name, u32_t *val);

int ds_delete_u32(const char *ds_name);

/* STRING */

int ds_publish_str(const char *name, char *val, int flags);

int ds_retrieve_str(const char *name, char *val, size_t len);

int ds_delete_str(const char *ds_name);

/* MEM */

int ds_publish_mem(const char *ds_name, void *vaddr, size_t length, int

        flags);

int ds_retrieve_mem(const char *ds_name, char *vaddr, size_t *length);

int ds_delete_mem(const char *ds_name);

/* MAP */

int ds_publish_map(const char *ds_name, void *vaddr, size_t length, int

        flags);

int ds_snapshot_map(const char *ds_name, int *nr_snapshot);

int ds_retrieve_map(const char *ds_name, char *vaddr, size_t *length,

        int nr_snapshot, int flags);

int ds_delete_map(const char *ds_name);

/* LABEL */

int ds_publish_label(const char *ds_name, endpoint_t endpoint, int

        flags);

int ds_retrieve_label_name(char *ds_name, endpoint_t endpoint);

int ds_retrieve_label_endpt(const char *ds_name, endpoint_t *endpoint);

int ds_delete_label(const char *ds_name);

/* Subscribe and check. */

int ds_subscribe(const char *regex, int flags);

int ds_check(char *ds_name, int *type, endpoint_t *owner_e);

#endif /* _MINIX_SYSTEM */

#endif /* _MINIX_DS_H */