[libvirt] [libvirt-python][PATCH 2/4] virStream: Introduce virStreamRecvFlags

Yet again, we need a custom wrapper over virStreamRecvFlags because our generator is not capable of generating it. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- generator.py | 1 + libvirt-override-virStream.py | 18 ++++++++++++++++++ libvirt-override.c | 39 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 58 insertions(+) diff --git a/generator.py b/generator.py index ca1df35..0e07fc8 100755 --- a/generator.py +++ b/generator.py @@ -545,6 +545,7 @@ skip_function = ( 'virStreamSend', # overridden in libvirt-override-virStream.py 'virStreamRecvHole', # overridden in libvirt-override-virStream.py 'virStreamSendHole', # overridden in libvirt-override-virStream.py + 'virStreamRecvFlags', # overridden in libvirt-override-virStream.py 'virConnectUnregisterCloseCallback', # overridden in virConnect.py 'virConnectRegisterCloseCallback', # overridden in virConnect.py diff --git a/libvirt-override-virStream.py b/libvirt-override-virStream.py index 62c1328..66d2bf6 100644 --- a/libvirt-override-virStream.py +++ b/libvirt-override-virStream.py @@ -146,3 +146,21 @@ ret = libvirtmod.virStreamSendHole(self._o, length, flags) if ret == -1: raise libvirtError('virStreamSendHole() failed') return ret + + def recvFlags(self, nbytes, flags = 0): + """Reads a series of bytes from the stream. This method may + block the calling application for an arbitrary amount + of time. This is just like recv except it has flags + argument. + + Errors are not guaranteed to be reported synchronously + with the call, but may instead be delayed until a + subsequent call. + + On success, the received data is returned. On failure, an + exception is raised. If the stream is a NONBLOCK stream and + the request would block, integer -2 is returned. + """ + ret = libvirtmod.virStreamRecvFlags(self._o, nbytes, flags) + if ret is None: raise libvirtError ('virStreamRecvFlags() failed') + return ret diff --git a/libvirt-override.c b/libvirt-override.c index b5e11ed..0310c35 100644 --- a/libvirt-override.c +++ b/libvirt-override.c @@ -9519,6 +9519,44 @@ libvirt_virStreamSendHole(PyObject *self ATTRIBUTE_UNUSED, return libvirt_intWrap(ret); } + +static PyObject * +libvirt_virStreamRecvFlags(PyObject *self ATTRIBUTE_UNUSED, + PyObject *args) +{ + PyObject *pyobj_stream; + PyObject *rv; + virStreamPtr stream; + char *buf = NULL; + size_t nbytes; + unsigned int flags; + int ret; + + if (!PyArg_ParseTuple(args, (char *) "OkI:virStreamRecvFlags", + &pyobj_stream, &nbytes, &flags)) + return NULL; + + stream = PyvirStream_Get(pyobj_stream); + + if (VIR_ALLOC_N(buf, nbytes + 1) < 0) + return PyErr_NoMemory(); + + LIBVIRT_BEGIN_ALLOW_THREADS; + ret = virStreamRecvFlags(stream, buf, nbytes, flags); + LIBVIRT_END_ALLOW_THREADS; + + buf[ret > -1 ? ret : 0] = '\0'; + DEBUG("StreamRecvFlags ret=%d strlen=%d\n", ret, (int) strlen(buf)); + + if (ret == -2 || ret == -3) + return libvirt_intWrap(ret); + if (ret < 0) + return VIR_PY_NONE; + rv = libvirt_charPtrSizeWrap((char *) buf, (Py_ssize_t) ret); + VIR_FREE(buf); + return rv; +} + #endif /* LIBVIR_CHECK_VERSION(3, 4, 0) */ @@ -9749,6 +9787,7 @@ static PyMethodDef libvirtMethods[] = { #if LIBVIR_CHECK_VERSION(3, 4, 0) {(char *) "virStreamRecvHole", libvirt_virStreamRecvHole, METH_VARARGS, NULL}, {(char *) "virStreamSendHole", libvirt_virStreamSendHole, METH_VARARGS, NULL}, + {(char *) "virStreamRecvFlags", libvirt_virStreamRecvFlags, METH_VARARGS, NULL}, #endif /* LIBVIR_CHECK_VERSION(3, 4, 0) */ {NULL, NULL, 0, NULL} }; -- 2.13.0