public LockRequest(LockOperation op, LockMode mode, int timeout, ref DbEntry obj, Lock lck) {
this.op = op;
this.mode = mode;
this.timeout = timeout;
this.obj = obj;
this.lck = lck;
}
public void ReleaseLock(ref Lock lck) {
DbRetVal ret;
lock (rscLock) {
DB_ENV* evp = CheckDisposed();
ret = evp->LockPut(evp, ref lck.dblck);
}
Util.CheckRetVal(ret);
}
public static LockRequest ForRelease(Lock lck) {
LockRequest lr = new LockRequest();
lr.op = LockOperation.Release;
lr.lck = lck;
return lr;
}
public Lock AcquireLock(int locker, LockFlags flags, ref DbEntry obj, LockMode mode) {
DbRetVal ret;
Lock lck = new Lock();
lock (rscLock) {
DB_ENV* evp = CheckDisposed();
fixed (byte* objBufP = obj.Buffer) {
obj.dbt.data = objBufP + obj.Start;
ret = evp->LockGet(evp, unchecked((uint)locker), unchecked((uint)flags), ref obj.dbt, (DB_LOCKMODE)mode, ref lck.dblck);
}
}
if (ret != DbRetVal.SUCCESS)
ThrowLockException(ret, -1);
return lck;
}