Make the default directory size returned by stat to be 4096

native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs_node.cc

Index: native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs_node.cc
diff --git a/native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs_node.cc b/native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs_node.cc
index bb3a8f5ac3524d3370ddc2f6f73b2b4aff2b9f08..12115789ccba7f5a3fc290fa57ab824ef857f82d 100644
--- a/native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs_node.cc
+++ b/native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs_node.cc
@@ -169,6 +169,10 @@ Error Html5FsNode::GetStat(struct stat* stat) {
       break;
   }
   stat->st_size = static_cast<off_t>(info.size);

[Sam Clegg, 2015/08/13 19:08:33]

What does info.size mean for html5 fs?  Perhaps we should just completely ignore
it?

[zhitingzhu, 2015/08/13 20:56:36]

I am not sure about where the info comes from. But it still return correct size
for files. 

+  // Hack the directory size
+  // In Linux, even a empty directory has size 4096
+  if (info.type == PP_FILETYPE_DIRECTORY && info.size == 0)
+    stat->st_size = 4096;
   stat->st_atime = info.last_access_time;
   stat->st_mtime = info.last_modified_time;
   stat->st_ctime = info.creation_time;
@@ -248,6 +252,9 @@ Error Html5FsNode::GetSize(off_t* out_size) {
     return PPERROR_TO_ERRNO(result);
 
   *out_size = info.size;
+  // In Linux, even a empty directory has size 4096
+  if (info.type == PP_FILETYPE_DIRECTORY && info.size == 0)
+     *out_size = 4096;
   return 0;
 }