Added getDirentCacheMaxSize, getDirentCacheCurrentSize, and setDirentCacheMaxSize methods in archive.

Author: MohitMaliDeveloper

lib/src/main/cpp/libzim/archive.cpp

@@ -341,6 +341,12 @@ GETTER(jstring, getChecksum)
 GETTER(jboolean, check)
 GETTER(jboolean, isMultiPart)
 GETTER(jboolean, hasNewNamespaceScheme)
+GETTER(jlong, getDirentCacheMaxSize)
+GETTER(jlong, getDirentCacheCurrentSize)
+
+METHOD(void, setDirentCacheMaxSize, jlong nbDirents) {
+    THIS->setDirentCacheMaxSize(static_cast<size_t>(nbDirents));
+} CATCH_EXCEPTION()
 
 #define ITER_BY_PATH 0
 #define ITER_BY_TITLE 1

lib/src/main/java/org/kiwix/libzim/Archive.java

@@ -132,6 +132,9 @@ public Archive(FdInput[] fds, OpenConfig openConfig)
   public native EntryIterator iterEfficient();
   public native EntryIterator findByPath(String path);
   public native EntryIterator findByTitle(String path);
+  public native long getDirentCacheMaxSize();
+  public native long getDirentCacheCurrentSize();
+  public native void setDirentCacheMaxSize(long nbDirents);
 
 
   private native void setNativeArchive(String filename);

lib/src/test/org/kiwix/test/libzim/TestArchive.java

@@ -136,5 +136,9 @@ public TestArchive(FdInput[] fds, OpenConfig openConfig)
   public TestEntryIterator findByPath(String path) { return new TestEntryIterator(inner.findByPath(path)); }
   public TestEntryIterator findByTitle(String path) { return new TestEntryIterator(inner.findByTitle(path)); }
 
+  public long getDirentCacheMaxSize() { return inner.getDirentCacheMaxSize(); }
+  public long getDirentCacheCurrentSize() { return inner.getDirentCacheCurrentSize(); }
+  public void setDirentCacheMaxSize(long nbDirents) { inner.setDirentCacheMaxSize(nbDirents); }
+
   public void dispose() { inner.dispose(); }
 }

lib/src/test/test.java

@@ -220,6 +220,12 @@ private void testArchive(TestArchive archive)
         } catch(Exception e) {
             fail("ERROR: Must be a EntryNotFoundException.");
         }
+
+        long maxCacheSize = archive.getDirentCacheMaxSize();
+        assertEquals(512, maxCacheSize);
+        long currentCacheSize = archive.getDirentCacheCurrentSize();
+        assertEquals(19, currentCacheSize);
+        archive.setDirentCacheMaxSize(19);
         System.gc();
         System.runFinalization();
     }