/* perform optimize command */
static int procoptimize(const char *path, int bnum, int apow, int fpow, int opts, int omode,
bool df){
TCHDB *hdb = tchdbnew();
if(g_dbgfd >= 0) tchdbsetdbgfd(hdb, g_dbgfd);
if(!tchdbsetcodecfunc(hdb, _tc_recencode, NULL, _tc_recdecode, NULL)) printerr(hdb);
if(!tchdbopen(hdb, path, HDBOWRITER | omode)){
printerr(hdb);
tchdbdel(hdb);
return 1;
}
bool err = false;
if(df){
if(!tchdbdefrag(hdb, INT64_MAX)){
printerr(hdb);
err = true;
}
} else {
if(!tchdboptimize(hdb, bnum, apow, fpow, opts)){
printerr(hdb);
err = true;
}
}
if(!tchdbclose(hdb)){
if(!err) printerr(hdb);
err = true;
}
tchdbdel(hdb);
return err ? 1 : 0;
}
void Retsu::Column::optimize() {
if(tchdbrnum(this->database) % (1<<16) == 0) {
if(!tchdboptimize(database, -1, -1, -1, HDBTLARGE | HDBTDEFLATE)) {
throw StorageError("Could not optimize column at " + path());
}
}
}
static bool OpenTokyoDatabase(const char *filename, TCHDB **hdb)
{
*hdb = tchdbnew();
if (!tchdbsetmutex(*hdb))
{
return false;
}
if (!tchdbopen(*hdb, filename, HDBOWRITER | HDBOCREAT))
{
return false;
}
static int threshold = -1; /* GLOBAL_X */
if (threshold == -1)
{
/**
Optimize always if TCDB_OPTIMIZE_PERCENT is equal to 100
Never optimize if TCDB_OPTIMIZE_PERCENT is equal to 0
*/
const char *perc = getenv("TCDB_OPTIMIZE_PERCENT");
if (perc != NULL)
{
/* Environment variable exists */
char *end;
long result = strtol(perc, &end, 10);
/* Environment variable is a number and in 0..100 range */
if (!*end && result >-1 && result < 101)
{
threshold = 100 - (int)result;
}
else
{
/* This corresponds to 1% */
threshold = 99;
}
}
else
{
/* This corresponds to 1% */
threshold = 99;
}
}
if ((threshold != 100) && (threshold == 0 || (int)(rand()%threshold) == 0))
{
if (!tchdboptimize(*hdb, -1, -1, -1, false))
{
tchdbclose(*hdb);
return false;
}
}
return true;
}
static mrb_value
hdb_optimize(mrb_state *mrb, mrb_value self)
{
hdb_context *context = DATA_PTR(self);
bool result;
mrb_int bnum, apow, fpow , opts;
mrb_get_args(mrb, "iiii", &bnum, &apow, &fpow, &opts);
result = tchdboptimize(context->hdb, bnum, apow, fpow, opts);
return mrb_bool_value(result);
}
/* perform optimize command */
static int procoptimize(const char *path, int bnum, int apow, int fpow, int opts, int omode){
TCHDB *hdb = tchdbnew();
if(g_dbgfd >= 0) tchdbsetdbgfd(hdb, g_dbgfd);
if(!tchdbopen(hdb, path, HDBOWRITER | omode)){
printerr(hdb);
tchdbdel(hdb);
return 1;
}
bool err = false;
if(!tchdboptimize(hdb, bnum, apow, fpow, opts)){
printerr(hdb);
err = true;
}
if(!tchdbclose(hdb)){
if(!err) printerr(hdb);
err = true;
}
tchdbdel(hdb);
return err ? 1 : 0;
}
bool db_obj_local::dboptimize(int64_t bnum, int8_t apow, int8_t fpow, uint8_t opts)
{
return tchdboptimize(_hdb,bnum,apow,fpow,opts);
}
/* optimize */
JNIEXPORT jboolean JNICALL Java_tokyocabinet_HDB_optimize
(JNIEnv *env, jobject self, jlong bnum, jint apow, jint fpow, jint opts){
TCHDB *hdb = (TCHDB *)(intptr_t)(*env)->GetLongField(env, self, hdb_fid_ptr);
return tchdboptimize(hdb, bnum, apow, fpow, opts);
}