Remove task.error_code -- it's redundant, as we can use the first element of

task.error_info instead.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

docs/xen-api/xenapi-datamodel.tex

@@ -512,7 +512,6 @@ $\mathit{RO}_\mathit{run}$ &  {\tt session} & session ref & the session that cre
 $\mathit{RO}_\mathit{run}$ &  {\tt progress} & int & if the task is still pending, this field contains the estimated percentage complete (0-100). If task has completed (successfully or unsuccessfully) this should be 100. \\
 $\mathit{RO}_\mathit{run}$ &  {\tt type} & string & if the task has completed successfully, this field contains the type of the encoded result (i.e. name of the class whose reference is in the result field). Undefined otherwise. \\
 $\mathit{RO}_\mathit{run}$ &  {\tt result} & string & if the task has completed successfully, this field contains the result value (either Void or an object reference). Undefined otherwise. \\
-$\mathit{RO}_\mathit{run}$ &  {\tt error\_code} & int & if the task has failed, this field contains the error code. Undefined otherwise. \\
 $\mathit{RO}_\mathit{run}$ &  {\tt error\_info} & string Set & if the task has failed, this field contains the set of associated error strings. Undefined otherwise. \\
 $\mathit{RO}_\mathit{run}$ &  {\tt allowed\_operations} & (task\_allowed\_operations) Set & Operations allowed on this task \\
 \hline
@@ -829,38 +828,6 @@ string
 }
 
 
-value of the field
-\vspace{0.3cm}
-\vspace{0.3cm}
-\vspace{0.3cm}
-\subsubsection{RPC name:~get\_error\_code}
-
-{\bf Overview:} 
-Get the error\_code field of the given task.
-
- \noindent {\bf Signature:} 
-\begin{verbatim} int get_error_code (session_id s, task ref self)\end{verbatim}
-
-
-\noindent{\bf Arguments:}
-
- 
-\vspace{0.3cm}
-\begin{tabular}{|c|c|p{7cm}|}
- \hline
-{\bf type} & {\bf name} & {\bf description} \\ \hline
-{\tt task ref } & self & reference to the object \\ \hline 
-
-\end{tabular}
-
-\vspace{0.3cm}
-
- \noindent {\bf Return Type:} 
-{\tt 
-int
-}
-
-
 value of the field
 \vspace{0.3cm}
 \vspace{0.3cm}

tools/python/xen/xend/XendAPI.py

@@ -789,7 +789,6 @@ class XendAPI(object):
                     'progress',
                     'type',
                     'result',
-                    'error_code',
                     'error_info',
                     'allowed_operations',
                     'session'
@@ -824,10 +823,6 @@ class XendAPI(object):
         task = XendTaskManager.get_task(task_ref)
         return xen_api_success(task.result)
 
-    def task_get_error_code(self, session, task_ref):
-        task = XendTaskManager.get_task(task_ref)
-        return xen_api_success(task.error_code)
-
     def task_get_error_info(self, session, task_ref):
         task = XendTaskManager.get_task(task_ref)
         return xen_api_success(task.error_info)

tools/python/xen/xend/XendTask.py

@@ -24,7 +24,7 @@ class XendTask(threading.Thread):
     """Represents a Asynchronous Task used by Xen API.
 
     Basically proxies the callable object in a thread and returns the
-    results via self.{type,result,error_code,error_info}.
+    results via self.{type,result,error_info}.
 
     @cvar task_progress: Thread local storage for progress tracking.
                          It is a dict indexed by thread_id. Note that the
@@ -71,7 +71,6 @@ class XendTask(threading.Thread):
         self.uuid = uuid
         
         self.result = None
-        self.error_code = ''
         self.error_info = []
         
         self.name_label = label or func.__name__
@@ -118,13 +117,11 @@ class XendTask(threading.Thread):
                 self.result = result['Value']
                 self.set_status(XEN_API_TASK_STATUS_TYPE[1])
             else:
-                self.error_code = result['ErrorDescription'][0]
-                self.error_info = result['ErrorDescription'][1:]
+                self.error_info = result['ErrorDescription']
                 self.set_status(XEN_API_TASK_STATUS_TYPE[2])                
         except Exception, e:
             log.exception('Error running Async Task')
-            self.error_code = 'INTERNAL ERROR'
-            self.error_info = [str(e)]
+            self.error_info = ['INTERNAL ERROR', str(e)]
             self.set_status(XEN_API_TASK_STATUS_TYPE[2])
 
         self.task_progress_lock.acquire()
@@ -144,7 +141,6 @@ class XendTask(threading.Thread):
             'progress': self.get_progress(),
             'type': self.type,
             'result': self.result,
-            'error_code': self.error_code,
             'error_info': self.error_info,
             'allowed_operations': {},
             'session': self.session,