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add hash page controls

master
danj 2006-12-12 16:12:25 +00:00
parent 652b783163
commit e76028af9e
1 changed files with 145 additions and 0 deletions
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145
bdb.c
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@ -281,6 +281,143 @@ VALUE db_flags_set(VALUE obj, VALUE vflags)
return vflags;
}
/*
* call-seq:
* db.pagesize=value
*
* set database flags based on DB constants.
* see http://www.sleepycat.com/docs/api_c/db_set_flags.html
*
*/
VALUE db_pagesize_set(VALUE obj, VALUE vpagesize)
{
t_dbh *dbh;
int rv;
u_int32_t pagesize;
pagesize=NUM2INT(vpagesize);
Data_Get_Struct(obj,t_dbh,dbh);
rv = dbh->db->set_pagesize(dbh->db,pagesize);
if ( rv != 0 ) {
raise_error(rv, "db_pagesize_set failure: %s",db_strerror(rv));
}
return vpagesize;
}
/*
* call-seq:
* db.pagesize
*
* set database flags based on DB constants.
* see http://www.sleepycat.com/docs/api_c/db_set_flags.html
*
*/
VALUE db_pagesize(VALUE obj)
{
t_dbh *dbh;
int rv;
u_int32_t pagesize;
Data_Get_Struct(obj,t_dbh,dbh);
rv = dbh->db->get_pagesize(dbh->db,&pagesize);
if ( rv != 0 ) {
raise_error(rv, "db_pagesize_get failure: %s",db_strerror(rv));
}
return INT2NUM(pagesize);
}
/*
* call-seq:
* db.h_ffactor=value
*
* get hash db fill factor
* formula:
* (pagesize - 32) / (average_key_size + average_data_size + 8)
*
*/
VALUE db_h_ffactor_set(VALUE obj, VALUE vint)
{
t_dbh *dbh;
int rv;
u_int32_t cint;
cint=NUM2INT(vint);
Data_Get_Struct(obj,t_dbh,dbh);
rv = dbh->db->set_h_ffactor(dbh->db,cint);
if ( rv != 0 ) {
raise_error(rv, "db_h_ffactor_set failure: %s",db_strerror(rv));
}
return vint;
}
/*
* call-seq:
* db.h_ffactor
*
* get hash db fill factor
* formula:
* (pagesize - 32) / (average_key_size + average_data_size + 8)
* see http://www.sleepycat.com/docs/api_c/db_set_flags.html
*
*/
VALUE db_h_ffactor(VALUE obj)
{
t_dbh *dbh;
int rv;
u_int32_t cint;
Data_Get_Struct(obj,t_dbh,dbh);
rv = dbh->db->get_h_ffactor(dbh->db,&cint);
if ( rv != 0 ) {
raise_error(rv, "db_h_ffactor failure: %s",db_strerror(rv));
}
return INT2NUM(cint);
}
/*
* call-seq:
* db.h_nelem=value
*
* set estimate number of elements in hash table
* see http://www.sleepycat.com/docs/api_c/db_set_flags.html
*
*/
VALUE db_h_nelem_set(VALUE obj, VALUE vint)
{
t_dbh *dbh;
int rv;
u_int32_t cint;
cint=NUM2INT(vint);
Data_Get_Struct(obj,t_dbh,dbh);
rv = dbh->db->set_h_nelem(dbh->db,cint);
if ( rv != 0 ) {
raise_error(rv, "db_h_nelem_set failure: %s",db_strerror(rv));
}
return vint;
}
/*
* call-seq:
* db.h_nelem
*
* get estimate number of element in the hash table
* see http://www.sleepycat.com/docs/api_c/db_set_flags.html
*
*/
VALUE db_h_nelem(VALUE obj)
{
t_dbh *dbh;
int rv;
u_int32_t nelem;
Data_Get_Struct(obj,t_dbh,dbh);
rv = dbh->db->get_h_nelem(dbh->db,&nelem);
if ( rv != 0 ) {
raise_error(rv, "db_h_nelem failure: %s",db_strerror(rv));
}
return INT2NUM(nelem);
}
VALUE dbc_close(VALUE);
/* call-seq:
@ -1627,7 +1764,9 @@ VALUE db_stat(VALUE obj, VALUE vtxn, VALUE vflags)
bs_int(bt_nkeys); /* Number of unique keys. */
bs_int(bt_ndata); /* Number of data items. */
bs_int(bt_pagesize); /* Page size. */
#if DB_VERSION_MINOR < 4
bs_int(bt_maxkey); /* Maxkey value. */
#endif
bs_int(bt_minkey); /* Minkey value. */
bs_int(bt_re_len); /* Fixed-length record length. */
bs_int(bt_re_pad); /* Fixed-length record pad. */
@ -2082,6 +2221,12 @@ void Init_bdb2() {
rb_define_method(cDb,"remove",db_remove,3);
rb_define_method(cDb,"key_range",db_key_range,3);
rb_define_method(cDb,"rename",db_rename,4);
rb_define_method(cDb,"pagesize",db_pagesize,0);
rb_define_method(cDb,"pagesize=",db_pagesize_set,1);
rb_define_method(cDb,"h_ffactor",db_h_ffactor,0);
rb_define_method(cDb,"h_ffactor=",db_h_ffactor_set,1);
rb_define_method(cDb,"h_nelem",db_h_nelem,0);
rb_define_method(cDb,"h_nelem=",db_h_nelem_set,1);
rb_define_method(cDb,"stat",db_stat,2);
cDbStat = rb_define_class_under(cDb,"Stat",rb_cObject);
rb_define_method(cDbStat,"[]",stat_aref,1);