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/*
* Copyright (c) 2015, NORDUnet A/S.
* See LICENSE for licensing information.
*/
#ifndef PERMDB_H
#define PERMDB_H
#define ENTRIESPERNODE 4 /* q = 2 */
typedef uint64_t node_entry;
typedef uint64_t node_offset;
typedef struct node_object {
node_entry data[ENTRIESPERNODE];
} node_object;
#define NODE_ENTRY_DIRTY_NODE 0x7FFFFFFFFFFFFFFFULL
#define NODE_ENTRY_ISDATA 0x8000000000000000ULL
#define NODE_ENTRY_OFFSET_MASK 0x7FFFFFFFFFFFFFFFULL
#define NODE_ENTRY_ERROR_NODE 0xFFFFFFFFFFFFFFFFULL
struct permdb_object;
typedef struct permdb_object permdb_object;
node_entry
get_entry_in_node(node_object node, unsigned char n);
unsigned char *
read_internal_data(permdb_object *state, node_offset offset, size_t length);
node_offset
datasize(permdb_object *state);
int
addvalue(permdb_object *state, const unsigned char *key, unsigned int keylength, const unsigned char *data, size_t datalength, node_offset dataoffset);
unsigned char *
getvalue(permdb_object *state, const unsigned char *key, size_t keylength, size_t *datalen);
void
delete_all_nodes_in_cache(permdb_object *state);
void
portloop(permdb_object *state);
permdb_object *
permdb_alloc(const char *dbpath, int lock);
void
permdb_free(permdb_object *state);
int
committree(permdb_object *state);
#endif
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