Dropped large object support when psycopg is in green mode.

Async mode and large object are not compatible, albeit I haven't found
an authoritative source yet.

doc/src/advanced.rst

@@ -435,6 +435,9 @@ callback (using `!select()` to block) is provided as
     :ref:`COPY commands <copy>` are currently not supported when a wait callback
     is registered, but they will be probably implemented in a future release.
 
+    :ref:`Large objects <large-objects>` are not supported either: they are
+    not compatible with asynchronous connections.
+
 
 .. testcode::
     :hide:

psycopg/connection_type.c

@@ -39,6 +39,7 @@
 #include "psycopg/cursor.h"
 #include "psycopg/pqpath.h"
 #include "psycopg/lobject.h"
+#include "psycopg/green.h"
 
 /** DBAPI methods **/
 
@@ -314,6 +315,7 @@ psyco_conn_lobject(connectionObject *self, PyObject *args, PyObject *keywds)
 
     EXC_IF_CONN_CLOSED(self);
     EXC_IF_CONN_ASYNC(self, lobject);
+    EXC_IF_GREEN(lobject);
 
     Dprintf("psyco_conn_lobject: new lobject for connection at %p", self);
     Dprintf("psyco_conn_lobject:     parameters: oid = %d, mode = %s",

psycopg/cursor.h

@@ -113,12 +113,6 @@ if ((self)->conn->async_cursor != NULL) {   \
     "while an asynchronous query is underway");                      \
     return NULL; }
 
-#define EXC_IF_GREEN(cmd) \
-if (psyco_green()) {   \
-    PyErr_SetString(PyExc_NotImplementedError, #cmd " cannot be used " \
-    "with an asynchronous callback (yet).");                           \
-    return NULL; }
-
 #ifdef __cplusplus
 }
 #endif

psycopg/green.h

@@ -62,6 +62,12 @@ HIDDEN int psyco_green(void);
 HIDDEN int psyco_wait(connectionObject *conn);
 HIDDEN PGresult *psyco_exec_green(connectionObject *conn, const char *command);
 
+#define EXC_IF_GREEN(cmd) \
+if (psyco_green()) {   \
+    PyErr_SetString(ProgrammingError, #cmd " cannot be used "       \
+    "with an asynchronous callback.");                              \
+    return NULL; }
+
 #ifdef __cplusplus
 }
 #endif

tests/__init__.py

@@ -50,13 +50,13 @@ def test_suite():
     suite.addTest(test_transaction.test_suite())
     suite.addTest(types_basic.test_suite())
     suite.addTest(types_extras.test_suite())
-    suite.addTest(test_lobject.test_suite())
 
     if not green:
+        suite.addTest(test_lobject.test_suite())
         suite.addTest(test_copy.test_suite())
     else:
         import warnings
-        warnings.warn("copy not implemented in green mode: skipping tests")
+        warnings.warn("copy/lobjects not implemented in green mode: skipping tests")
 
     suite.addTest(test_notify.test_suite())
     suite.addTest(test_async.test_suite())