diff options
Diffstat (limited to 'src/vpp-api/python/vpp_papi.py')
| -rw-r--r-- | src/vpp-api/python/vpp_papi.py | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/src/vpp-api/python/vpp_papi.py b/src/vpp-api/python/vpp_papi.py index 67ac22a4d32..e7e1707c435 100644 --- a/src/vpp-api/python/vpp_papi.py +++ b/src/vpp-api/python/vpp_papi.py @@ -25,6 +25,7 @@ import threading import glob import atexit from cffi import FFI +import cffi if sys.version[0] == '2': import Queue as queue @@ -54,7 +55,6 @@ void vac_set_error_handler(vac_error_callback_t); # Barfs on failure, no need to check success. vpp_api = ffi.dlopen('libvppapiclient.so') - def vpp_atexit(self): """Clean up VPP connection on shutdown.""" if self.connected: @@ -166,6 +166,14 @@ class VPP(): # Register error handler vpp_api.vac_set_error_handler(vac_error_handler) + # Support legacy CFFI + # from_buffer supported from 1.8.0 + (major, minor, patch) = [int(s) for s in cffi.__version__.split('.', 3)] + if major >= 1 and minor >= 8: + self._write = self._write_new_cffi + else: + self._write = self._write_legacy_cffi + class ContextId(object): """Thread-safe provider of unique context IDs.""" def __init__(self): @@ -469,12 +477,18 @@ class VPP(): self.logger.debug( 'No such message type or failed CRC checksum: %s', n) - def _write(self, buf): + def _write_new_cffi(self, buf): """Send a binary-packed message to VPP.""" if not self.connected: raise IOError(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') + return vpp_api.vac_write(str(buf), len(buf)) + def _read(self): if not self.connected: raise IOError(1, 'Not connected') |