X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvpp-api%2Fpython%2Fvpp_papi%2Fvpp_transport_shmem.py;h=53ae775069ffd44faf4c5051de51cfb418cdf64d;hb=dfb984d4e82d3950bb7270a4e8c6b2dda26c10da;hp=027d391df3ec5c5aff88e4c31a4ea6dd72ba5783;hpb=7e713f133a62efdc9d3019aeeee15cce774087e2;p=vpp.git

diff --git a/src/vpp-api/python/vpp_papi/vpp_transport_shmem.py b/src/vpp-api/python/vpp_papi/vpp_transport_shmem.py
index 027d391df3e..53ae775069f 100644
--- a/src/vpp-api/python/vpp_papi/vpp_transport_shmem.py
+++ b/src/vpp-api/python/vpp_papi/vpp_transport_shmem.py
@@ -47,7 +47,13 @@ def vac_error_handler(arg, msg, msg_len):
     vpp_object.logger.warning("VPP API client:: %s", ffi.string(msg, msg_len))
 
 
+class VppTransportShmemIOError(IOError):
+    pass
+
+
 class VppTransport(object):
+    VppTransportShmemIOError = VppTransportShmemIOError
+
     def __init__(self, parent, read_timeout, server_address):
         self.connected = False
         self.read_timeout = read_timeout
@@ -83,8 +89,8 @@ class VppTransport(object):
     def resume(self):
         vpp_api.vac_rx_resume()
 
-    def get_callback(self, async):
-        return vac_callback_sync if not async else vac_callback_async
+    def get_callback(self, do_async):
+        return vac_callback_sync if not do_async else vac_callback_async
 
     def get_msg_index(self, name):
         return vpp_api.vac_get_msg_index(name)
@@ -95,23 +101,23 @@ class VppTransport(object):
     def _write_new_cffi(self, buf):
         """Send a binary-packed message to VPP."""
         if not self.connected:
-            raise IOError(1, 'Not connected')
+            raise VppTransportShmemIOError(1, 'Not connected')
         return vpp_api.vac_write(ffi.from_buffer(buf), len(buf))
 
     def _write_legacy_cffi(self, buf):
         """Send a binary-packed message to VPP."""
         if not self.connected:
-            raise IOError(1, 'Not connected')
+            raise VppTransportShmemIOError(1, 'Not connected')
         return vpp_api.vac_write(bytes(buf), len(buf))
 
     def read(self):
         if not self.connected:
-            raise IOError(1, 'Not connected')
+            raise VppTransportShmemIOError(1, 'Not connected')
         mem = ffi.new("char **")
         size = ffi.new("int *")
         rv = vpp_api.vac_read(mem, size, self.read_timeout)
         if rv:
-            raise IOError(rv, 'vac_read failed')
+            raise VppTransportShmemIOError(rv, 'vac_read failed')
         msg = bytes(ffi.buffer(mem[0], size[0]))
         vpp_api.vac_free(mem[0])
         return msg