Add hd_drop_page

Author: sjw

include/hdtd/document.h

@@ -169,4 +169,9 @@ hd_page *hd_load_page(hd_context *ctx, hd_document *doc, int number);
 
 void hd_run_page_contents(hd_context *ctx, hd_page *page, char* buf, uint32_t *extract_len);
 
+/*
+	hd_drop_page: Free a loaded page.
+*/
+void hd_drop_page(hd_context *ctx, hd_page *page);
+
 #endif //HDCONTENTS_HDTD_DOCUMENT_H

source/hdtd/document.c

@@ -151,4 +151,16 @@ hd_run_page_contents(hd_context *ctx, hd_page *page, char* buf, uint32_t *extrac
                 hd_rethrow(ctx);
         }
     }
+}
+
+
+void
+hd_drop_page(hd_context *ctx, hd_page *page)
+{
+	if (hd_drop_imp(ctx, page, &page->refs))
+	{
+		if (page->drop_page)
+			page->drop_page(ctx, page);
+		hd_free(ctx, page);
+	}
 }

source/hdtd/stream-open.c

@@ -8,6 +8,7 @@ hd_drop_stream(hd_context *ctx, hd_stream *stm)
 {
     if (hd_drop_imp(ctx, stm, &stm->refs))
     {
+		//printf("hd_drop_stream is run\n");
         if (stm->close)
             stm->close(ctx, stm->state);
         hd_free(ctx, stm);

source/pdf/pdf-page.c

@@ -221,7 +221,7 @@ pdf_load_page(hd_context *ctx, pdf_document *doc, int number)
         hd_rethrow(ctx);
 
     page = pdf_new_page(ctx, doc);
-    page->obj = pdf_keep_obj(ctx, pageobj);
+    page->obj = pageobj;//pdf_keep_obj(ctx, pageobj);
     return page;
 
 }