added implementation of readdir

lib/wsfs/provider/dirbuffer.c

@@ -0,0 +1,45 @@
+#include "wsfs/provider/dirbuffer_intern.h"
+#include <stdlib.h>
+
+struct wsfsp_dirbuffer * wsfsp_dirbuffer_create(void)
+{
+    struct wsfsp_dirbuffer * buffer = malloc(sizeof(struct wsfsp_dirbuffer));
+    if (NULL != buffer)
+    {
+        buffer->entries = json_array();
+    }
+
+    return buffer;
+}
+
+void wsfsp_dirbuffer_dispose(
+    struct wsfsp_dirbuffer * buffer)
+{
+    if (NULL != buffer->entries)
+    {
+        json_decref(buffer->entries);
+    }
+
+    free(buffer);
+}
+
+void wsfsp_dirbuffer_add(
+    struct wsfsp_dirbuffer * buffer,
+    char const * name,
+    ino_t inode)
+{
+    json_t * entry = json_object();
+    json_object_set_new(entry, "name", json_string(name));
+    json_object_set_new(entry, "inode", json_integer(inode));
+
+    json_array_append(buffer->entries, entry);
+}
+
+json_t * wsfsp_dirbuffer_take(
+    struct wsfsp_dirbuffer * buffer)
+{
+    json_t * entries = buffer->entries;
+
+    buffer->entries = NULL;
+    return entries;
+}

lib/wsfs/provider/dirbuffer_intern.h

@@ -0,0 +1,15 @@
+#ifndef WSFS_PROVIDER_DIRBUFFER_INTERN_H
+#define WSFS_PROVIDER_DIRBUFFER_INTERN_H
+
+#include "wsfs/provider/dirbuffer.h"
+#include <jansson.h>
+
+struct wsfsp_dirbuffer
+{
+    json_t * entries;
+};
+
+extern json_t * wsfsp_dirbuffer_take(
+    struct wsfsp_dirbuffer * buffer);
+
+#endif

lib/wsfs/provider/operation/readdir.c

@@ -3,6 +3,8 @@
 #include <stdio.h>
 
 #include "wsfs/provider/operation/error.h"
+#include "wsfs/provider/dirbuffer_intern.h"
+#include "wsfs/provider/request.h"
 #include "wsfs/util.h"
 
 void wsfsp_readdir(
@@ -37,10 +39,7 @@ void wsfsp_respond_readdir(
     struct wsfsp_request * request,
     struct wsfsp_dirbuffer * dirbuffer)
 {
-    (void) request;
-    (void) dirbuffer;
-
-    // ToDo: implement me
-    wsfsp_respond_error(request, -1);
+    json_t * result = wsfsp_dirbuffer_take(dirbuffer);
+    wsfsp_respond(request, result);
 }