boolean setLock(String rw, long beginIndex, long bytesNum, boolean s) {
if (!this.exists()) return false;
try {
raf = new RandomAccessFile(this, rw);
fc = raf.getChannel();
flk = fc.lock(beginIndex, bytesNum, s);
} catch (OverlappingFileLockException oe) {
LogUtil.warn("[SetLock]", "[No effect]", "the region has already been locked");
return false;
} catch (Exception e) {
LogUtil.info("[SetLock]", "[No effect]", e);
return false;
}
return true;
}
