[NaCl SDK] nacl_io: big refactor to return error value (errno).

native_client_sdk/src/libraries/nacl_io/kernel_object.h

Index: native_client_sdk/src/libraries/nacl_io/kernel_object.h
diff --git a/native_client_sdk/src/libraries/nacl_io/kernel_object.h b/native_client_sdk/src/libraries/nacl_io/kernel_object.h
index 97b197f80513b07d9644bda8a9301d88781a0d50..15105f3aa3a4b8d03ca7745d1170ed6831430448 100644
--- a/native_client_sdk/src/libraries/nacl_io/kernel_object.h
+++ b/native_client_sdk/src/libraries/nacl_io/kernel_object.h
@@ -29,11 +29,13 @@ class KernelObject {
   virtual ~KernelObject();
 
   // Find the mount for the given path, and acquires it
-  Mount* AcquireMountAndPath(const std::string& relpath, Path *pobj);
+  int AcquireMountAndPath(const std::string& relpath,

[noelallen1, 2013/06/07 21:48:43]

Error?

[binji, 2013/06/07 23:23:11]

Done.

+                          Mount** mount,
+                          Path* pobj);
   void ReleaseMount(Mount* mnt);
 
   // Convert from FD to KernelHandle, and acquire the handle.
-  KernelHandle* AcquireHandle(int fd);
+  int AcquireHandle(int fd, KernelHandle** handle);

[noelallen1, 2013/06/07 21:48:43]

Error?

[binji, 2013/06/07 23:23:11]

Done.

   void ReleaseHandle(KernelHandle* handle);
 
   // Allocate a new fd and assign the handle to it, while