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 bool OpenTokyoDatabase(const char *filename, TCHDB **hdb)
{
*hdb = tchdbnew();
if (!tchdbsetmutex(*hdb))
{
return false;
}
if (!tchdbopen(*hdb, filename, HDBOWRITER | HDBOCREAT))
{
return false;
}
return true;
}
bool db_obj_local::dbsetmutex()
{
return tchdbsetmutex(_hdb);
}
/* initialize */
JNIEXPORT void JNICALL
Java_tokyocabinet_HDB_initialize(JNIEnv *env, jobject self){
TCHDB *hdb = tchdbnew();
tchdbsetmutex(hdb);
(*env)->SetLongField(env, self, hdb_fid_ptr, (intptr_t)hdb);
}
