Fix calculation of internal sorting buffer and add unification to s-fixint.

[libucw.git] / lib / db.h

diff --git a/lib/db.h b/lib/db.h
index 78fc804a4b113db55e71d293d1e837ac0f158624..41b81aa1308fb2a533d809fb80e7c2441e0dd68d 100644 (file)
--- a/lib/db.h
+++ b/lib/db.h
@@ -1,11 +1,14 @@
 /*
- *     Sherlock Library -- Fast Database Management Routines
+ *     UCW Library -- Fast Database Management Routines
  *
- *     (c) 1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ *     (c) 1999--2001 Martin Mares <mj@ucw.cz>
+ *
+ *     This software may be freely distributed and used according to the terms
+ *     of the GNU Lesser General Public License.
  */
 
-#ifndef _SHERLOCK_DB_H
-#define _SHERLOCK_DB_H
+#ifndef _UCW_DB_H
+#define _UCW_DB_H
 
 struct sdbm;
 
@@ -18,11 +21,6 @@ struct sdbm_options {                        /* Set to 0 for default */
   int val_size;                                /* Value size, -1=variable */
 };
 
-struct sdbm_buf {
-  uns size;
-  byte data[0];
-};
-
 struct sdbm *sdbm_open(struct sdbm_options *);
 void sdbm_close(struct sdbm *);
 int sdbm_store(struct sdbm *, byte *key, uns keylen, byte *val, uns vallen);
@@ -32,6 +30,7 @@ int sdbm_fetch(struct sdbm *, byte *key, uns keylen, byte *val, uns *vallen);         /
 void sdbm_rewind(struct sdbm *);
 int sdbm_get_next(struct sdbm *, byte *key, uns *keylen, byte *val, uns *vallen);      /* val can be NULL */
 void sdbm_sync(struct sdbm *);
+u32 sdbm_hash(byte *key, uns keylen);
 
 #define SDBM_CREAT             1       /* Create the database if it doesn't exist */
 #define SDBM_WRITE             2       /* Open the database in read/write mode */
@@ -46,5 +45,6 @@ void sdbm_sync(struct sdbm *);
 #define SDBM_ERROR_BAD_VAL_SIZE -2     /* Fixed value size doesn't match */
 #define SDBM_ERROR_TOO_LARGE   -3      /* Key/value doesn't fit in buffer supplied */
 #define SDBM_ERROR_READ_ONLY   -4      /* Database has been opened read only */
+#define SDBM_ERROR_GIANT       -5      /* Key/value too large to fit in a page */
 
 #endif