diff options
Diffstat (limited to 'src/cdb/cdb.h')
| -rw-r--r-- | src/cdb/cdb.h | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/src/cdb/cdb.h b/src/cdb/cdb.h deleted file mode 100644 index 03da9ac41..000000000 --- a/src/cdb/cdb.h +++ /dev/null @@ -1,158 +0,0 @@ -/* $Id: cdb.h,v 1.10 2009-01-31 17:12:22 mjt Exp $ - * public cdb include file - * - * This file is a part of tinycdb package by Michael Tokarev, mjt@corpit.ru. - * Public domain. - */ - -#ifndef TINYCDB_VERSION -#define TINYCDB_VERSION 0.77 - -#include "config.h" - -/* - * OpenBSD fix - */ -#ifndef EPROTO -#define EPROTO EPROTONOSUPPORT -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -typedef unsigned int cdbi_t; /* compatibility */ - -/* common routines */ -unsigned cdb_hash(const void *buf, unsigned len); -unsigned cdb_unpack(const unsigned char buf[4]); -void cdb_pack(unsigned num, unsigned char buf[4]); - -struct cdb -{ - int cdb_fd; /* file descriptor */ - char *filename; /* file name */ - time_t mtime; /* mtime of cdb file */ - struct event *check_timer_ev; /* event structure for checking cdb for modifications */ - struct timeval *check_timer_tv; - /* private members */ - unsigned cdb_fsize; /* datafile size */ - unsigned cdb_dend; /* end of data ptr */ - const unsigned char *cdb_mem; /* mmap'ed file memory */ - unsigned cdb_vpos, cdb_vlen; /* found data */ - unsigned cdb_kpos, cdb_klen; /* found key */ -}; - -#define CDB_STATIC_INIT {0,0,0,0,0,0,0,0} - -#define cdb_datapos(c) ((c)->cdb_vpos) -#define cdb_datalen(c) ((c)->cdb_vlen) -#define cdb_keypos(c) ((c)->cdb_kpos) -#define cdb_keylen(c) ((c)->cdb_klen) -#define cdb_fileno(c) ((c)->cdb_fd) - -int cdb_init(struct cdb *cdbp, int fd); -void cdb_add_timer(struct cdb *cdbp, unsigned seconds); -void cdb_free(struct cdb *cdbp); - -int cdb_read(const struct cdb *cdbp, void *buf, unsigned len, unsigned pos); -#define cdb_readdata(cdbp, buf) \ - cdb_read((cdbp), (buf), cdb_datalen(cdbp), cdb_datapos(cdbp)) -#define cdb_readkey(cdbp, buf) \ - cdb_read((cdbp), (buf), cdb_keylen(cdbp), cdb_keypos(cdbp)) - -const void *cdb_get(const struct cdb *cdbp, unsigned len, unsigned pos); -#define cdb_getdata(cdbp) \ - cdb_get((cdbp), cdb_datalen(cdbp), cdb_datapos(cdbp)) -#define cdb_getkey(cdbp) \ - cdb_get((cdbp), cdb_keylen(cdbp), cdb_keypos(cdbp)) - -int cdb_find(struct cdb *cdbp, const void *key, unsigned klen); - -struct cdb_find -{ - struct cdb *cdb_cdbp; - unsigned cdb_hval; - const unsigned char *cdb_htp, *cdb_htab, *cdb_htend; - unsigned cdb_httodo; - const void *cdb_key; - unsigned cdb_klen; -}; - -int cdb_findinit(struct cdb_find *cdbfp, struct cdb *cdbp, const void *key, - unsigned klen); -int cdb_findnext(struct cdb_find *cdbfp); - -#define cdb_seqinit(cptr, cdbp) ((*(cptr))=2048) -int cdb_seqnext(unsigned *cptr, struct cdb *cdbp); - -/* old simple interface */ -/* open file using standard routine, then: */ -int cdb_seek(int fd, const void *key, unsigned klen, unsigned *dlenp); -int cdb_bread(int fd, void *buf, int len); - -/* cdb_make */ - -struct cdb_make -{ - int cdb_fd; /* file descriptor */ - - /* private */ - unsigned cdb_dpos; /* data position so far */ - unsigned cdb_rcnt; /* record count so far */ - unsigned char cdb_buf[4096]; /* write buffer */ - unsigned char *cdb_bpos; /* current buf position */ - struct cdb_rl *cdb_rec[256]; /* list of arrays of record infos */ -}; - -enum cdb_put_mode -{ - CDB_PUT_ADD = 0, /* add unconditionnaly, like cdb_make_add() */ -#define CDB_PUT_ADD CDB_PUT_ADD - CDB_FIND = CDB_PUT_ADD, CDB_PUT_REPLACE, /* replace: do not place to index OLD record */ -#define CDB_PUT_REPLACE CDB_PUT_REPLACE - CDB_FIND_REMOVE = CDB_PUT_REPLACE, CDB_PUT_INSERT, /* add only if not already exists */ -#define CDB_PUT_INSERT CDB_PUT_INSERT - CDB_PUT_WARN, /* add unconditionally but ret. 1 if exists */ -#define CDB_PUT_WARN CDB_PUT_WARN - CDB_PUT_REPLACE0, /* if a record exists, fill old one with zeros */ -#define CDB_PUT_REPLACE0 CDB_PUT_REPLACE0 - CDB_FIND_FILL0 = CDB_PUT_REPLACE0 -}; - -int cdb_make_start(struct cdb_make *cdbmp, int fd); -int cdb_make_add(struct cdb_make *cdbmp, const void *key, unsigned klen, - const void *val, unsigned vlen); -int cdb_make_exists(struct cdb_make *cdbmp, const void *key, unsigned klen); -int cdb_make_find(struct cdb_make *cdbmp, const void *key, unsigned klen, - enum cdb_put_mode mode); -int cdb_make_put(struct cdb_make *cdbmp, const void *key, unsigned klen, - const void *val, unsigned vlen, enum cdb_put_mode mode); -int cdb_make_finish(struct cdb_make *cdbmp); - -/** Private API **/ -struct cdb_rec -{ - unsigned hval; - unsigned rpos; -}; - -struct cdb_rl -{ - struct cdb_rl *next; - unsigned cnt; - struct cdb_rec rec[254]; -}; - -int _cdb_make_write(struct cdb_make *cdbmp, const unsigned char *ptr, - unsigned len); -int _cdb_make_fullwrite(int fd, const unsigned char *buf, unsigned len); -int _cdb_make_flush(struct cdb_make *cdbmp); -int _cdb_make_add(struct cdb_make *cdbmp, unsigned hval, const void *key, - unsigned klen, const void *val, unsigned vlen); - -#ifdef __cplusplus -} /* extern "C" */ -#endif - -#endif /* include guard */ |