diff options
Diffstat (limited to 'Modules/_multiprocessing')
| -rw-r--r-- | Modules/_multiprocessing/connection.h | 736 | ||||
| -rw-r--r-- | Modules/_multiprocessing/multiprocessing.c | 388 | ||||
| -rw-r--r-- | Modules/_multiprocessing/pipe_connection.c | 188 | ||||
| -rw-r--r-- | Modules/_multiprocessing/semaphore.c | 892 | ||||
| -rw-r--r-- | Modules/_multiprocessing/socket_connection.c | 258 | ||||
| -rw-r--r-- | Modules/_multiprocessing/win32_functions.c | 342 |
6 files changed, 1402 insertions, 1402 deletions
diff --git a/Modules/_multiprocessing/connection.h b/Modules/_multiprocessing/connection.h index 458d1d3..f6db851 100644 --- a/Modules/_multiprocessing/connection.h +++ b/Modules/_multiprocessing/connection.h @@ -1,5 +1,5 @@ /* - * Definition of a `Connection` type. + * Definition of a `Connection` type. * Used by `socket_connection.c` and `pipe_connection.c`. * * connection.h @@ -19,14 +19,14 @@ #define CHECK_READABLE(self) \ if (!(self->flags & READABLE)) { \ - PyErr_SetString(PyExc_IOError, "connection is write-only"); \ - return NULL; \ + PyErr_SetString(PyExc_IOError, "connection is write-only"); \ + return NULL; \ } #define CHECK_WRITABLE(self) \ if (!(self->flags & WRITABLE)) { \ - PyErr_SetString(PyExc_IOError, "connection is read-only"); \ - return NULL; \ + PyErr_SetString(PyExc_IOError, "connection is read-only"); \ + return NULL; \ } /* @@ -36,57 +36,57 @@ static PyObject * connection_new(PyTypeObject *type, PyObject *args, PyObject *kwds) { - ConnectionObject *self; - HANDLE handle; - BOOL readable = TRUE, writable = TRUE; - - static char *kwlist[] = {"handle", "readable", "writable", NULL}; - - if (!PyArg_ParseTupleAndKeywords(args, kwds, F_HANDLE "|ii", kwlist, - &handle, &readable, &writable)) - return NULL; - - if (handle == INVALID_HANDLE_VALUE || (Py_ssize_t)handle < 0) { - PyErr_Format(PyExc_IOError, "invalid handle %zd", - (Py_ssize_t)handle); - return NULL; - } - - if (!readable && !writable) { - PyErr_SetString(PyExc_ValueError, - "either readable or writable must be true"); - return NULL; - } - - self = PyObject_New(ConnectionObject, type); - if (self == NULL) - return NULL; - - self->weakreflist = NULL; - self->handle = handle; - self->flags = 0; - - if (readable) - self->flags |= READABLE; - if (writable) - self->flags |= WRITABLE; - assert(self->flags >= 1 && self->flags <= 3); - - return (PyObject*)self; + ConnectionObject *self; + HANDLE handle; + BOOL readable = TRUE, writable = TRUE; + + static char *kwlist[] = {"handle", "readable", "writable", NULL}; + + if (!PyArg_ParseTupleAndKeywords(args, kwds, F_HANDLE "|ii", kwlist, + &handle, &readable, &writable)) + return NULL; + + if (handle == INVALID_HANDLE_VALUE || (Py_ssize_t)handle < 0) { + PyErr_Format(PyExc_IOError, "invalid handle %zd", + (Py_ssize_t)handle); + return NULL; + } + + if (!readable && !writable) { + PyErr_SetString(PyExc_ValueError, + "either readable or writable must be true"); + return NULL; + } + + self = PyObject_New(ConnectionObject, type); + if (self == NULL) + return NULL; + + self->weakreflist = NULL; + self->handle = handle; + self->flags = 0; + + if (readable) + self->flags |= READABLE; + if (writable) + self->flags |= WRITABLE; + assert(self->flags >= 1 && self->flags <= 3); + + return (PyObject*)self; } static void connection_dealloc(ConnectionObject* self) { - if (self->weakreflist != NULL) - PyObject_ClearWeakRefs((PyObject*)self); - - if (self->handle != INVALID_HANDLE_VALUE) { - Py_BEGIN_ALLOW_THREADS - CLOSE(self->handle); - Py_END_ALLOW_THREADS - } - PyObject_Del(self); + if (self->weakreflist != NULL) + PyObject_ClearWeakRefs((PyObject*)self); + + if (self->handle != INVALID_HANDLE_VALUE) { + Py_BEGIN_ALLOW_THREADS + CLOSE(self->handle); + Py_END_ALLOW_THREADS + } + PyObject_Del(self); } /* @@ -96,156 +96,156 @@ connection_dealloc(ConnectionObject* self) static PyObject * connection_sendbytes(ConnectionObject *self, PyObject *args) { - char *buffer; - Py_ssize_t length, offset=0, size=PY_SSIZE_T_MIN; - int res; - - if (!PyArg_ParseTuple(args, F_RBUFFER "#|" F_PY_SSIZE_T F_PY_SSIZE_T, - &buffer, &length, &offset, &size)) - return NULL; - - CHECK_WRITABLE(self); - - if (offset < 0) { - PyErr_SetString(PyExc_ValueError, "offset is negative"); - return NULL; - } - if (length < offset) { - PyErr_SetString(PyExc_ValueError, "buffer length < offset"); - return NULL; - } - - if (size == PY_SSIZE_T_MIN) { - size = length - offset; - } else { - if (size < 0) { - PyErr_SetString(PyExc_ValueError, "size is negative"); - return NULL; - } - if (offset + size > length) { - PyErr_SetString(PyExc_ValueError, - "buffer length < offset + size"); - return NULL; - } - } - - res = conn_send_string(self, buffer + offset, size); - - if (res < 0) - return mp_SetError(PyExc_IOError, res); - - Py_RETURN_NONE; + char *buffer; + Py_ssize_t length, offset=0, size=PY_SSIZE_T_MIN; + int res; + + if (!PyArg_ParseTuple(args, F_RBUFFER "#|" F_PY_SSIZE_T F_PY_SSIZE_T, + &buffer, &length, &offset, &size)) + return NULL; + + CHECK_WRITABLE(self); + + if (offset < 0) { + PyErr_SetString(PyExc_ValueError, "offset is negative"); + return NULL; + } + if (length < offset) { + PyErr_SetString(PyExc_ValueError, "buffer length < offset"); + return NULL; + } + + if (size == PY_SSIZE_T_MIN) { + size = length - offset; + } else { + if (size < 0) { + PyErr_SetString(PyExc_ValueError, "size is negative"); + return NULL; + } + if (offset + size > length) { + PyErr_SetString(PyExc_ValueError, + "buffer length < offset + size"); + return NULL; + } + } + + res = conn_send_string(self, buffer + offset, size); + + if (res < 0) + return mp_SetError(PyExc_IOError, res); + + Py_RETURN_NONE; } static PyObject * -connection_recvbytes(ConnectionObject *self, PyObject *args) +connection_recvbytes(ConnectionObject *self, PyObject *args) { - char *freeme = NULL; - Py_ssize_t res, maxlength = PY_SSIZE_T_MAX; - PyObject *result = NULL; - - if (!PyArg_ParseTuple(args, "|" F_PY_SSIZE_T, &maxlength)) - return NULL; - - CHECK_READABLE(self); - - if (maxlength < 0) { - PyErr_SetString(PyExc_ValueError, "maxlength < 0"); - return NULL; - } - - res = conn_recv_string(self, self->buffer, CONNECTION_BUFFER_SIZE, - &freeme, maxlength); - - if (res < 0) { - if (res == MP_BAD_MESSAGE_LENGTH) { - if ((self->flags & WRITABLE) == 0) { - Py_BEGIN_ALLOW_THREADS - CLOSE(self->handle); - Py_END_ALLOW_THREADS - self->handle = INVALID_HANDLE_VALUE; - } else { - self->flags = WRITABLE; - } - } - mp_SetError(PyExc_IOError, res); - } else { - if (freeme == NULL) { - result = PyString_FromStringAndSize(self->buffer, res); - } else { - result = PyString_FromStringAndSize(freeme, res); - PyMem_Free(freeme); - } - } - - return result; + char *freeme = NULL; + Py_ssize_t res, maxlength = PY_SSIZE_T_MAX; + PyObject *result = NULL; + + if (!PyArg_ParseTuple(args, "|" F_PY_SSIZE_T, &maxlength)) + return NULL; + + CHECK_READABLE(self); + + if (maxlength < 0) { + PyErr_SetString(PyExc_ValueError, "maxlength < 0"); + return NULL; + } + + res = conn_recv_string(self, self->buffer, CONNECTION_BUFFER_SIZE, + &freeme, maxlength); + + if (res < 0) { + if (res == MP_BAD_MESSAGE_LENGTH) { + if ((self->flags & WRITABLE) == 0) { + Py_BEGIN_ALLOW_THREADS + CLOSE(self->handle); + Py_END_ALLOW_THREADS + self->handle = INVALID_HANDLE_VALUE; + } else { + self->flags = WRITABLE; + } + } + mp_SetError(PyExc_IOError, res); + } else { + if (freeme == NULL) { + result = PyString_FromStringAndSize(self->buffer, res); + } else { + result = PyString_FromStringAndSize(freeme, res); + PyMem_Free(freeme); + } + } + + return result; } static PyObject * -connection_recvbytes_into(ConnectionObject *self, PyObject *args) +connection_recvbytes_into(ConnectionObject *self, PyObject *args) { - char *freeme = NULL, *buffer = NULL; - Py_ssize_t res, length, offset = 0; - PyObject *result = NULL; - Py_buffer pbuf; - - CHECK_READABLE(self); - - if (!PyArg_ParseTuple(args, "w*|" F_PY_SSIZE_T, - &pbuf, &offset)) - return NULL; - - buffer = pbuf.buf; - length = pbuf.len; - - if (offset < 0) { - PyErr_SetString(PyExc_ValueError, "negative offset"); - goto _error; - } - - if (offset > length) { - PyErr_SetString(PyExc_ValueError, "offset too large"); - goto _error; - } - - res = conn_recv_string(self, buffer+offset, length-offset, - &freeme, PY_SSIZE_T_MAX); - - if (res < 0) { - if (res == MP_BAD_MESSAGE_LENGTH) { - if ((self->flags & WRITABLE) == 0) { - Py_BEGIN_ALLOW_THREADS - CLOSE(self->handle); - Py_END_ALLOW_THREADS - self->handle = INVALID_HANDLE_VALUE; - } else { - self->flags = WRITABLE; - } - } - mp_SetError(PyExc_IOError, res); - } else { - if (freeme == NULL) { - result = PyInt_FromSsize_t(res); - } else { - result = PyObject_CallFunction(BufferTooShort, - F_RBUFFER "#", - freeme, res); - PyMem_Free(freeme); - if (result) { - PyErr_SetObject(BufferTooShort, result); - Py_DECREF(result); - } - goto _error; - } - } + char *freeme = NULL, *buffer = NULL; + Py_ssize_t res, length, offset = 0; + PyObject *result = NULL; + Py_buffer pbuf; + + CHECK_READABLE(self); + + if (!PyArg_ParseTuple(args, "w*|" F_PY_SSIZE_T, + &pbuf, &offset)) + return NULL; + + buffer = pbuf.buf; + length = pbuf.len; + + if (offset < 0) { + PyErr_SetString(PyExc_ValueError, "negative offset"); + goto _error; + } + + if (offset > length) { + PyErr_SetString(PyExc_ValueError, "offset too large"); + goto _error; + } + + res = conn_recv_string(self, buffer+offset, length-offset, + &freeme, PY_SSIZE_T_MAX); + + if (res < 0) { + if (res == MP_BAD_MESSAGE_LENGTH) { + if ((self->flags & WRITABLE) == 0) { + Py_BEGIN_ALLOW_THREADS + CLOSE(self->handle); + Py_END_ALLOW_THREADS + self->handle = INVALID_HANDLE_VALUE; + } else { + self->flags = WRITABLE; + } + } + mp_SetError(PyExc_IOError, res); + } else { + if (freeme == NULL) { + result = PyInt_FromSsize_t(res); + } else { + result = PyObject_CallFunction(BufferTooShort, + F_RBUFFER "#", + freeme, res); + PyMem_Free(freeme); + if (result) { + PyErr_SetObject(BufferTooShort, result); + Py_DECREF(result); + } + goto _error; + } + } _cleanup: - PyBuffer_Release(&pbuf); - return result; + PyBuffer_Release(&pbuf); + return result; _error: - result = NULL; - goto _cleanup; + result = NULL; + goto _cleanup; } /* @@ -255,74 +255,74 @@ _error: static PyObject * connection_send_obj(ConnectionObject *self, PyObject *obj) { - char *buffer; - int res; - Py_ssize_t length; - PyObject *pickled_string = NULL; + char *buffer; + int res; + Py_ssize_t length; + PyObject *pickled_string = NULL; - CHECK_WRITABLE(self); + CHECK_WRITABLE(self); - pickled_string = PyObject_CallFunctionObjArgs(pickle_dumps, obj, - pickle_protocol, NULL); - if (!pickled_string) - goto failure; + pickled_string = PyObject_CallFunctionObjArgs(pickle_dumps, obj, + pickle_protocol, NULL); + if (!pickled_string) + goto failure; - if (PyString_AsStringAndSize(pickled_string, &buffer, &length) < 0) - goto failure; + if (PyString_AsStringAndSize(pickled_string, &buffer, &length) < 0) + goto failure; - res = conn_send_string(self, buffer, (int)length); + res = conn_send_string(self, buffer, (int)length); - if (res < 0) { - mp_SetError(PyExc_IOError, res); - goto failure; - } + if (res < 0) { + mp_SetError(PyExc_IOError, res); + goto failure; + } - Py_XDECREF(pickled_string); - Py_RETURN_NONE; + Py_XDECREF(pickled_string); + Py_RETURN_NONE; failure: - Py_XDECREF(pickled_string); - return NULL; + Py_XDECREF(pickled_string); + return NULL; } static PyObject * connection_recv_obj(ConnectionObject *self) { - char *freeme = NULL; - Py_ssize_t res; - PyObject *temp = NULL, *result = NULL; - - CHECK_READABLE(self); - - res = conn_recv_string(self, self->buffer, CONNECTION_BUFFER_SIZE, - &freeme, PY_SSIZE_T_MAX); - - if (res < 0) { - if (res == MP_BAD_MESSAGE_LENGTH) { - if ((self->flags & WRITABLE) == 0) { - Py_BEGIN_ALLOW_THREADS - CLOSE(self->handle); - Py_END_ALLOW_THREADS - self->handle = INVALID_HANDLE_VALUE; - } else { - self->flags = WRITABLE; - } - } - mp_SetError(PyExc_IOError, res); - } else { - if (freeme == NULL) { - temp = PyString_FromStringAndSize(self->buffer, res); - } else { - temp = PyString_FromStringAndSize(freeme, res); - PyMem_Free(freeme); - } - } - - if (temp) - result = PyObject_CallFunctionObjArgs(pickle_loads, - temp, NULL); - Py_XDECREF(temp); - return result; + char *freeme = NULL; + Py_ssize_t res; + PyObject *temp = NULL, *result = NULL; + + CHECK_READABLE(self); + + res = conn_recv_string(self, self->buffer, CONNECTION_BUFFER_SIZE, + &freeme, PY_SSIZE_T_MAX); + + if (res < 0) { + if (res == MP_BAD_MESSAGE_LENGTH) { + if ((self->flags & WRITABLE) == 0) { + Py_BEGIN_ALLOW_THREADS + CLOSE(self->handle); + Py_END_ALLOW_THREADS + self->handle = INVALID_HANDLE_VALUE; + } else { + self->flags = WRITABLE; + } + } + mp_SetError(PyExc_IOError, res); + } else { + if (freeme == NULL) { + temp = PyString_FromStringAndSize(self->buffer, res); + } else { + temp = PyString_FromStringAndSize(freeme, res); + PyMem_Free(freeme); + } + } + + if (temp) + result = PyObject_CallFunctionObjArgs(pickle_loads, + temp, NULL); + Py_XDECREF(temp); + return result; } /* @@ -332,73 +332,73 @@ connection_recv_obj(ConnectionObject *self) static PyObject * connection_poll(ConnectionObject *self, PyObject *args) { - PyObject *timeout_obj = NULL; - double timeout = 0.0; - int res; - - CHECK_READABLE(self); - - if (!PyArg_ParseTuple(args, "|O", &timeout_obj)) - return NULL; - - if (timeout_obj == NULL) { - timeout = 0.0; - } else if (timeout_obj == Py_None) { - timeout = -1.0; /* block forever */ - } else { - timeout = PyFloat_AsDouble(timeout_obj); - if (PyErr_Occurred()) - return NULL; - if (timeout < 0.0) - timeout = 0.0; - } - - Py_BEGIN_ALLOW_THREADS - res = conn_poll(self, timeout, _save); - Py_END_ALLOW_THREADS - - switch (res) { - case TRUE: - Py_RETURN_TRUE; - case FALSE: - Py_RETURN_FALSE; - default: - return mp_SetError(PyExc_IOError, res); - } + PyObject *timeout_obj = NULL; + double timeout = 0.0; + int res; + + CHECK_READABLE(self); + + if (!PyArg_ParseTuple(args, "|O", &timeout_obj)) + return NULL; + + if (timeout_obj == NULL) { + timeout = 0.0; + } else if (timeout_obj == Py_None) { + timeout = -1.0; /* block forever */ + } else { + timeout = PyFloat_AsDouble(timeout_obj); + if (PyErr_Occurred()) + return NULL; + if (timeout < 0.0) + timeout = 0.0; + } + + Py_BEGIN_ALLOW_THREADS + res = conn_poll(self, timeout, _save); + Py_END_ALLOW_THREADS + + switch (res) { + case TRUE: + Py_RETURN_TRUE; + case FALSE: + Py_RETURN_FALSE; + default: + return mp_SetError(PyExc_IOError, res); + } } static PyObject * connection_fileno(ConnectionObject* self) { - if (self->handle == INVALID_HANDLE_VALUE) { - PyErr_SetString(PyExc_IOError, "handle is invalid"); - return NULL; - } - return PyInt_FromLong((long)self->handle); + if (self->handle == INVALID_HANDLE_VALUE) { + PyErr_SetString(PyExc_IOError, "handle is invalid"); + return NULL; + } + return PyInt_FromLong((long)self->handle); } static PyObject * connection_close(ConnectionObject *self) { - if (self->handle != INVALID_HANDLE_VALUE) { - Py_BEGIN_ALLOW_THREADS - CLOSE(self->handle); - Py_END_ALLOW_THREADS - self->handle = INVALID_HANDLE_VALUE; - } - - Py_RETURN_NONE; + if (self->handle != INVALID_HANDLE_VALUE) { + Py_BEGIN_ALLOW_THREADS + CLOSE(self->handle); + Py_END_ALLOW_THREADS + self->handle = INVALID_HANDLE_VALUE; + } + + Py_RETURN_NONE; } static PyObject * connection_repr(ConnectionObject *self) { - static char *conn_type[] = {"read-only", "write-only", "read-write"}; + static char *conn_type[] = {"read-only", "write-only", "read-write"}; - assert(self->flags >= 1 && self->flags <= 3); - return FROM_FORMAT("<%s %s, handle %zd>", - conn_type[self->flags - 1], - CONNECTION_NAME, (Py_ssize_t)self->handle); + assert(self->flags >= 1 && self->flags <= 3); + return FROM_FORMAT("<%s %s, handle %zd>", + conn_type[self->flags - 1], + CONNECTION_NAME, (Py_ssize_t)self->handle); } /* @@ -408,19 +408,19 @@ connection_repr(ConnectionObject *self) static PyObject * connection_closed(ConnectionObject *self, void *closure) { - return PyBool_FromLong((long)(self->handle == INVALID_HANDLE_VALUE)); + return PyBool_FromLong((long)(self->handle == INVALID_HANDLE_VALUE)); } static PyObject * connection_readable(ConnectionObject *self, void *closure) { - return PyBool_FromLong((long)(self->flags & READABLE)); + return PyBool_FromLong((long)(self->flags & READABLE)); } static PyObject * connection_writable(ConnectionObject *self, void *closure) { - return PyBool_FromLong((long)(self->flags & WRITABLE)); + return PyBool_FromLong((long)(self->flags & WRITABLE)); } /* @@ -428,37 +428,37 @@ connection_writable(ConnectionObject *self, void *closure) */ static PyMethodDef connection_methods[] = { - {"send_bytes", (PyCFunction)connection_sendbytes, METH_VARARGS, - "send the byte data from a readable buffer-like object"}, - {"recv_bytes", (PyCFunction)connection_recvbytes, METH_VARARGS, - "receive byte data as a string"}, - {"recv_bytes_into",(PyCFunction)connection_recvbytes_into,METH_VARARGS, - "receive byte data into a writeable buffer-like object\n" - "returns the number of bytes read"}, - - {"send", (PyCFunction)connection_send_obj, METH_O, - "send a (picklable) object"}, - {"recv", (PyCFunction)connection_recv_obj, METH_NOARGS, - "receive a (picklable) object"}, - - {"poll", (PyCFunction)connection_poll, METH_VARARGS, - "whether there is any input available to be read"}, - {"fileno", (PyCFunction)connection_fileno, METH_NOARGS, - "file descriptor or handle of the connection"}, - {"close", (PyCFunction)connection_close, METH_NOARGS, - "close the connection"}, - - {NULL} /* Sentinel */ + {"send_bytes", (PyCFunction)connection_sendbytes, METH_VARARGS, + "send the byte data from a readable buffer-like object"}, + {"recv_bytes", (PyCFunction)connection_recvbytes, METH_VARARGS, + "receive byte data as a string"}, + {"recv_bytes_into",(PyCFunction)connection_recvbytes_into,METH_VARARGS, + "receive byte data into a writeable buffer-like object\n" + "returns the number of bytes read"}, + + {"send", (PyCFunction)connection_send_obj, METH_O, + "send a (picklable) object"}, + {"recv", (PyCFunction)connection_recv_obj, METH_NOARGS, + "receive a (picklable) object"}, + + {"poll", (PyCFunction)connection_poll, METH_VARARGS, + "whether there is any input available to be read"}, + {"fileno", (PyCFunction)connection_fileno, METH_NOARGS, + "file descriptor or handle of the connection"}, + {"close", (PyCFunction)connection_close, METH_NOARGS, + "close the connection"}, + + {NULL} /* Sentinel */ }; static PyGetSetDef connection_getset[] = { - {"closed", (getter)connection_closed, NULL, - "True if the connection is closed", NULL}, - {"readable", (getter)connection_readable, NULL, - "True if the connection is readable", NULL}, - {"writable", (getter)connection_writable, NULL, - "True if the connection is writable", NULL}, - {NULL} + {"closed", (getter)connection_closed, NULL, + "True if the connection is closed", NULL}, + {"readable", (getter)connection_readable, NULL, + "True if the connection is readable", NULL}, + {"writable", (getter)connection_writable, NULL, + "True if the connection is writable", NULL}, + {NULL} }; /* @@ -466,50 +466,50 @@ static PyGetSetDef connection_getset[] = { */ PyDoc_STRVAR(connection_doc, - "Connection type whose constructor signature is\n\n" - " Connection(handle, readable=True, writable=True).\n\n" - "The constructor does *not* duplicate the handle."); + "Connection type whose constructor signature is\n\n" + " Connection(handle, readable=True, writable=True).\n\n" + "The constructor does *not* duplicate the handle."); PyTypeObject CONNECTION_TYPE = { - PyVarObject_HEAD_INIT(NULL, 0) - /* tp_name */ "_multiprocessing." CONNECTION_NAME, - /* tp_basicsize */ sizeof(ConnectionObject), - /* tp_itemsize */ 0, - /* tp_dealloc */ (destructor)connection_dealloc, - /* tp_print */ 0, - /* tp_getattr */ 0, - /* tp_setattr */ 0, - /* tp_compare */ 0, - /* tp_repr */ (reprfunc)connection_repr, - /* tp_as_number */ 0, - /* tp_as_sequence */ 0, - /* tp_as_mapping */ 0, - /* tp_hash */ 0, - /* tp_call */ 0, - /* tp_str */ 0, - /* tp_getattro */ 0, - /* tp_setattro */ 0, - /* tp_as_buffer */ 0, - /* tp_flags */ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | - Py_TPFLAGS_HAVE_WEAKREFS, - /* tp_doc */ connection_doc, - /* tp_traverse */ 0, - /* tp_clear */ 0, - /* tp_richcompare */ 0, - /* tp_weaklistoffset */ offsetof(ConnectionObject, weakreflist), - /* tp_iter */ 0, - /* tp_iternext */ 0, - /* tp_methods */ connection_methods, - /* tp_members */ 0, - /* tp_getset */ connection_getset, - /* tp_base */ 0, - /* tp_dict */ 0, - /* tp_descr_get */ 0, - /* tp_descr_set */ 0, - /* tp_dictoffset */ 0, - /* tp_init */ 0, - /* tp_alloc */ 0, - /* tp_new */ connection_new, + PyVarObject_HEAD_INIT(NULL, 0) + /* tp_name */ "_multiprocessing." CONNECTION_NAME, + /* tp_basicsize */ sizeof(ConnectionObject), + /* tp_itemsize */ 0, + /* tp_dealloc */ (destructor)connection_dealloc, + /* tp_print */ 0, + /* tp_getattr */ 0, + /* tp_setattr */ 0, + /* tp_compare */ 0, + /* tp_repr */ (reprfunc)connection_repr, + /* tp_as_number */ 0, + /* tp_as_sequence */ 0, + /* tp_as_mapping */ 0, + /* tp_hash */ 0, + /* tp_call */ 0, + /* tp_str */ 0, + /* tp_getattro */ 0, + /* tp_setattro */ 0, + /* tp_as_buffer */ 0, + /* tp_flags */ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | + Py_TPFLAGS_HAVE_WEAKREFS, + /* tp_doc */ connection_doc, + /* tp_traverse */ 0, + /* tp_clear */ 0, + /* tp_richcompare */ 0, + /* tp_weaklistoffset */ offsetof(ConnectionObject, weakreflist), + /* tp_iter */ 0, + /* tp_iternext */ 0, + /* tp_methods */ connection_methods, + /* tp_members */ 0, + /* tp_getset */ connection_getset, + /* tp_base */ 0, + /* tp_dict */ 0, + /* tp_descr_get */ 0, + /* tp_descr_set */ 0, + /* tp_dictoffset */ 0, + /* tp_init */ 0, + /* tp_alloc */ 0, + /* tp_new */ connection_new, }; #endif /* CONNECTION_H */ diff --git a/Modules/_multiprocessing/multiprocessing.c b/Modules/_multiprocessing/multiprocessing.c index 48049c7..e593950 100644 --- a/Modules/_multiprocessing/multiprocessing.c +++ b/Modules/_multiprocessing/multiprocessing.c @@ -20,46 +20,46 @@ PyObject *ProcessError, *BufferTooShort; PyObject * mp_SetError(PyObject *Type, int num) { - switch (num) { + switch (num) { #ifdef MS_WINDOWS - case MP_STANDARD_ERROR: - if (Type == NULL) - Type = PyExc_WindowsError; - PyErr_SetExcFromWindowsErr(Type, 0); - break; - case MP_SOCKET_ERROR: - if (Type == NULL) - Type = PyExc_WindowsError; - PyErr_SetExcFromWindowsErr(Type, WSAGetLastError()); - break; + case MP_STANDARD_ERROR: + if (Type == NULL) + Type = PyExc_WindowsError; + PyErr_SetExcFromWindowsErr(Type, 0); + break; + case MP_SOCKET_ERROR: + if (Type == NULL) + Type = PyExc_WindowsError; + PyErr_SetExcFromWindowsErr(Type, WSAGetLastError()); + break; #else /* !MS_WINDOWS */ - case MP_STANDARD_ERROR: - case MP_SOCKET_ERROR: - if (Type == NULL) - Type = PyExc_OSError; - PyErr_SetFromErrno(Type); - break; + case MP_STANDARD_ERROR: + case MP_SOCKET_ERROR: + if (Type == NULL) + Type = PyExc_OSError; + PyErr_SetFromErrno(Type); + break; #endif /* !MS_WINDOWS */ - case MP_MEMORY_ERROR: - PyErr_NoMemory(); - break; - case MP_END_OF_FILE: - PyErr_SetNone(PyExc_EOFError); - break; - case MP_EARLY_END_OF_FILE: - PyErr_SetString(PyExc_IOError, - "got end of file during message"); - break; - case MP_BAD_MESSAGE_LENGTH: - PyErr_SetString(PyExc_IOError, "bad message length"); - break; - case MP_EXCEPTION_HAS_BEEN_SET: - break; - default: - PyErr_Format(PyExc_RuntimeError, - "unkown error number %d", num); - } - return NULL; + case MP_MEMORY_ERROR: + PyErr_NoMemory(); + break; + case MP_END_OF_FILE: + PyErr_SetNone(PyExc_EOFError); + break; + case MP_EARLY_END_OF_FILE: + PyErr_SetString(PyExc_IOError, + "got end of file during message"); + break; + case MP_BAD_MESSAGE_LENGTH: + PyErr_SetString(PyExc_IOError, "bad message length"); + break; + case MP_EXCEPTION_HAS_BEEN_SET: + break; + default: + PyErr_Format(PyExc_RuntimeError, + "unkown error number %d", num); + } + return NULL; } @@ -76,8 +76,8 @@ HANDLE sigint_event = NULL; static BOOL WINAPI ProcessingCtrlHandler(DWORD dwCtrlType) { - SetEvent(sigint_event); - return FALSE; + SetEvent(sigint_event); + return FALSE; } /* @@ -95,72 +95,72 @@ ProcessingCtrlHandler(DWORD dwCtrlType) static PyObject * multiprocessing_sendfd(PyObject *self, PyObject *args) { - int conn, fd, res; - char dummy_char; - char buf[CMSG_SPACE(sizeof(int))]; - struct msghdr msg = {0}; - struct iovec dummy_iov; - struct cmsghdr *cmsg; - - if (!PyArg_ParseTuple(args, "ii", &conn, &fd)) - return NULL; - - dummy_iov.iov_base = &dummy_char; - dummy_iov.iov_len = 1; - msg.msg_control = buf; - msg.msg_controllen = sizeof(buf); - msg.msg_iov = &dummy_iov; - msg.msg_iovlen = 1; - cmsg = CMSG_FIRSTHDR(&msg); - cmsg->cmsg_level = SOL_SOCKET; - cmsg->cmsg_type = SCM_RIGHTS; - cmsg->cmsg_len = CMSG_LEN(sizeof(int)); - msg.msg_controllen = cmsg->cmsg_len; - *(int*)CMSG_DATA(cmsg) = fd; - - Py_BEGIN_ALLOW_THREADS - res = sendmsg(conn, &msg, 0); - Py_END_ALLOW_THREADS - - if (res < 0) - return PyErr_SetFromErrno(PyExc_OSError); - Py_RETURN_NONE; + int conn, fd, res; + char dummy_char; + char buf[CMSG_SPACE(sizeof(int))]; + struct msghdr msg = {0}; + struct iovec dummy_iov; + struct cmsghdr *cmsg; + + if (!PyArg_ParseTuple(args, "ii", &conn, &fd)) + return NULL; + + dummy_iov.iov_base = &dummy_char; + dummy_iov.iov_len = 1; + msg.msg_control = buf; + msg.msg_controllen = sizeof(buf); + msg.msg_iov = &dummy_iov; + msg.msg_iovlen = 1; + cmsg = CMSG_FIRSTHDR(&msg); + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = SCM_RIGHTS; + cmsg->cmsg_len = CMSG_LEN(sizeof(int)); + msg.msg_controllen = cmsg->cmsg_len; + *(int*)CMSG_DATA(cmsg) = fd; + + Py_BEGIN_ALLOW_THREADS + res = sendmsg(conn, &msg, 0); + Py_END_ALLOW_THREADS + + if (res < 0) + return PyErr_SetFromErrno(PyExc_OSError); + Py_RETURN_NONE; } static PyObject * multiprocessing_recvfd(PyObject *self, PyObject *args) { - int conn, fd, res; - char dummy_char; - char buf[CMSG_SPACE(sizeof(int))]; - struct msghdr msg = {0}; - struct iovec dummy_iov; - struct cmsghdr *cmsg; - - if (!PyArg_ParseTuple(args, "i", &conn)) - return NULL; - - dummy_iov.iov_base = &dummy_char; - dummy_iov.iov_len = 1; - msg.msg_control = buf; - msg.msg_controllen = sizeof(buf); - msg.msg_iov = &dummy_iov; - msg.msg_iovlen = 1; - cmsg = CMSG_FIRSTHDR(&msg); - cmsg->cmsg_level = SOL_SOCKET; - cmsg->cmsg_type = SCM_RIGHTS; - cmsg->cmsg_len = CMSG_LEN(sizeof(int)); - msg.msg_controllen = cmsg->cmsg_len; - - Py_BEGIN_ALLOW_THREADS - res = recvmsg(conn, &msg, 0); - Py_END_ALLOW_THREADS - - if (res < 0) - return PyErr_SetFromErrno(PyExc_OSError); - - fd = *(int*)CMSG_DATA(cmsg); - return Py_BuildValue("i", fd); + int conn, fd, res; + char dummy_char; + char buf[CMSG_SPACE(sizeof(int))]; + struct msghdr msg = {0}; + struct iovec dummy_iov; + struct cmsghdr *cmsg; + + if (!PyArg_ParseTuple(args, "i", &conn)) + return NULL; + + dummy_iov.iov_base = &dummy_char; + dummy_iov.iov_len = 1; + msg.msg_control = buf; + msg.msg_controllen = sizeof(buf); + msg.msg_iov = &dummy_iov; + msg.msg_iovlen = 1; + cmsg = CMSG_FIRSTHDR(&msg); + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = SCM_RIGHTS; + cmsg->cmsg_len = CMSG_LEN(sizeof(int)); + msg.msg_controllen = cmsg->cmsg_len; + + Py_BEGIN_ALLOW_THREADS + res = recvmsg(conn, &msg, 0); + Py_END_ALLOW_THREADS + + if (res < 0) + return PyErr_SetFromErrno(PyExc_OSError); + + fd = *(int*)CMSG_DATA(cmsg); + return Py_BuildValue("i", fd); } #endif /* HAVE_FD_TRANSFER */ @@ -175,14 +175,14 @@ multiprocessing_recvfd(PyObject *self, PyObject *args) static PyObject* multiprocessing_address_of_buffer(PyObject *self, PyObject *obj) { - void *buffer; - Py_ssize_t buffer_len; + void *buffer; + Py_ssize_t buffer_len; - if (PyObject_AsWriteBuffer(obj, &buffer, &buffer_len) < 0) - return NULL; + if (PyObject_AsWriteBuffer(obj, &buffer, &buffer_len) < 0) + return NULL; - return Py_BuildValue("N" F_PY_SSIZE_T, - PyLong_FromVoidPtr(buffer), buffer_len); + return Py_BuildValue("N" F_PY_SSIZE_T, + PyLong_FromVoidPtr(buffer), buffer_len); } @@ -191,20 +191,20 @@ multiprocessing_address_of_buffer(PyObject *self, PyObject *obj) */ static PyMethodDef module_methods[] = { - {"address_of_buffer", multiprocessing_address_of_buffer, METH_O, - "address_of_buffer(obj) -> int\n" - "Return address of obj assuming obj supports buffer inteface"}, + {"address_of_buffer", multiprocessing_address_of_buffer, METH_O, + "address_of_buffer(obj) -> int\n" + "Return address of obj assuming obj supports buffer inteface"}, #if HAVE_FD_TRANSFER - {"sendfd", multiprocessing_sendfd, METH_VARARGS, - "sendfd(sockfd, fd) -> None\n" - "Send file descriptor given by fd over the unix domain socket\n" - "whose file decriptor is sockfd"}, - {"recvfd", multiprocessing_recvfd, METH_VARARGS, - "recvfd(sockfd) -> fd\n" - "Receive a file descriptor over a unix domain socket\n" - "whose file decriptor is sockfd"}, + {"sendfd", multiprocessing_sendfd, METH_VARARGS, + "sendfd(sockfd, fd) -> None\n" + "Send file descriptor given by fd over the unix domain socket\n" + "whose file decriptor is sockfd"}, + {"recvfd", multiprocessing_recvfd, METH_VARARGS, + "recvfd(sockfd) -> fd\n" + "Receive a file descriptor over a unix domain socket\n" + "whose file decriptor is sockfd"}, #endif - {NULL} + {NULL} }; @@ -215,97 +215,97 @@ static PyMethodDef module_methods[] = { PyMODINIT_FUNC init_multiprocessing(void) { - PyObject *module, *temp, *value; - - /* Initialize module */ - module = Py_InitModule("_multiprocessing", module_methods); - if (!module) - return; - - /* Get copy of objects from pickle */ - temp = PyImport_ImportModule(PICKLE_MODULE); - if (!temp) - return; - pickle_dumps = PyObject_GetAttrString(temp, "dumps"); - pickle_loads = PyObject_GetAttrString(temp, "loads"); - pickle_protocol = PyObject_GetAttrString(temp, "HIGHEST_PROTOCOL"); - Py_XDECREF(temp); - - /* Get copy of BufferTooShort */ - temp = PyImport_ImportModule("multiprocessing"); - if (!temp) - return; - BufferTooShort = PyObject_GetAttrString(temp, "BufferTooShort"); - Py_XDECREF(temp); - - /* Add connection type to module */ - if (PyType_Ready(&ConnectionType) < 0) - return; - Py_INCREF(&ConnectionType); - PyModule_AddObject(module, "Connection", (PyObject*)&ConnectionType); + PyObject *module, *temp, *value; + + /* Initialize module */ + module = Py_InitModule("_multiprocessing", module_methods); + if (!module) + return; + + /* Get copy of objects from pickle */ + temp = PyImport_ImportModule(PICKLE_MODULE); + if (!temp) + return; + pickle_dumps = PyObject_GetAttrString(temp, "dumps"); + pickle_loads = PyObject_GetAttrString(temp, "loads"); + pickle_protocol = PyObject_GetAttrString(temp, "HIGHEST_PROTOCOL"); + Py_XDECREF(temp); + + /* Get copy of BufferTooShort */ + temp = PyImport_ImportModule("multiprocessing"); + if (!temp) + return; + BufferTooShort = PyObject_GetAttrString(temp, "BufferTooShort"); + Py_XDECREF(temp); + + /* Add connection type to module */ + if (PyType_Ready(&ConnectionType) < 0) + return; + Py_INCREF(&ConnectionType); + PyModule_AddObject(module, "Connection", (PyObject*)&ConnectionType); #if defined(MS_WINDOWS) || HAVE_SEM_OPEN - /* Add SemLock type to module */ - if (PyType_Ready(&SemLockType) < 0) - return; - Py_INCREF(&SemLockType); - PyDict_SetItemString(SemLockType.tp_dict, "SEM_VALUE_MAX", - Py_BuildValue("i", SEM_VALUE_MAX)); - PyModule_AddObject(module, "SemLock", (PyObject*)&SemLockType); + /* Add SemLock type to module */ + if (PyType_Ready(&SemLockType) < 0) + return; + Py_INCREF(&SemLockType); + PyDict_SetItemString(SemLockType.tp_dict, "SEM_VALUE_MAX", + Py_BuildValue("i", SEM_VALUE_MAX)); + PyModule_AddObject(module, "SemLock", (PyObject*)&SemLockType); #endif #ifdef MS_WINDOWS - /* Add PipeConnection to module */ - if (PyType_Ready(&PipeConnectionType) < 0) - return; - Py_INCREF(&PipeConnectionType); - PyModule_AddObject(module, "PipeConnection", - (PyObject*)&PipeConnectionType); - - /* Initialize win32 class and add to multiprocessing */ - temp = create_win32_namespace(); - if (!temp) - return; - PyModule_AddObject(module, "win32", temp); - - /* Initialize the event handle used to signal Ctrl-C */ - sigint_event = CreateEvent(NULL, TRUE, FALSE, NULL); - if (!sigint_event) { - PyErr_SetFromWindowsErr(0); - return; - } - if (!SetConsoleCtrlHandler(ProcessingCtrlHandler, TRUE)) { - PyErr_SetFromWindowsErr(0); - return; - } + /* Add PipeConnection to module */ + if (PyType_Ready(&PipeConnectionType) < 0) + return; + Py_INCREF(&PipeConnectionType); + PyModule_AddObject(module, "PipeConnection", + (PyObject*)&PipeConnectionType); + + /* Initialize win32 class and add to multiprocessing */ + temp = create_win32_namespace(); + if (!temp) + return; + PyModule_AddObject(module, "win32", temp); + + /* Initialize the event handle used to signal Ctrl-C */ + sigint_event = CreateEvent(NULL, TRUE, FALSE, NULL); + if (!sigint_event) { + PyErr_SetFromWindowsErr(0); + return; + } + if (!SetConsoleCtrlHandler(ProcessingCtrlHandler, TRUE)) { + PyErr_SetFromWindowsErr(0); + return; + } #endif - /* Add configuration macros */ - temp = PyDict_New(); - if (!temp) - return; -#define ADD_FLAG(name) \ - value = Py_BuildValue("i", name); \ - if (value == NULL) { Py_DECREF(temp); return; } \ - if (PyDict_SetItemString(temp, #name, value) < 0) { \ - Py_DECREF(temp); Py_DECREF(value); return; } \ - Py_DECREF(value) - + /* Add configuration macros */ + temp = PyDict_New(); + if (!temp) + return; +#define ADD_FLAG(name) \ + value = Py_BuildValue("i", name); \ + if (value == NULL) { Py_DECREF(temp); return; } \ + if (PyDict_SetItemString(temp, #name, value) < 0) { \ + Py_DECREF(temp); Py_DECREF(value); return; } \ + Py_DECREF(value) + #ifdef HAVE_SEM_OPEN - ADD_FLAG(HAVE_SEM_OPEN); + ADD_FLAG(HAVE_SEM_OPEN); #endif #ifdef HAVE_SEM_TIMEDWAIT - ADD_FLAG(HAVE_SEM_TIMEDWAIT); + ADD_FLAG(HAVE_SEM_TIMEDWAIT); #endif #ifdef HAVE_FD_TRANSFER - ADD_FLAG(HAVE_FD_TRANSFER); + ADD_FLAG(HAVE_FD_TRANSFER); #endif #ifdef HAVE_BROKEN_SEM_GETVALUE - ADD_FLAG(HAVE_BROKEN_SEM_GETVALUE); + ADD_FLAG(HAVE_BROKEN_SEM_GETVALUE); #endif #ifdef HAVE_BROKEN_SEM_UNLINK - ADD_FLAG(HAVE_BROKEN_SEM_UNLINK); + ADD_FLAG(HAVE_BROKEN_SEM_UNLINK); #endif - if (PyModule_AddObject(module, "flags", temp) < 0) - return; + if (PyModule_AddObject(module, "flags", temp) < 0) + return; } diff --git a/Modules/_multiprocessing/pipe_connection.c b/Modules/_multiprocessing/pipe_connection.c index 27e79dd..ee5836f 100644 --- a/Modules/_multiprocessing/pipe_connection.c +++ b/Modules/_multiprocessing/pipe_connection.c @@ -17,13 +17,13 @@ static Py_ssize_t conn_send_string(ConnectionObject *conn, char *string, size_t length) { - DWORD amount_written; - BOOL ret; + DWORD amount_written; + BOOL ret; - Py_BEGIN_ALLOW_THREADS - ret = WriteFile(conn->handle, string, length, &amount_written, NULL); - Py_END_ALLOW_THREADS - return ret ? MP_SUCCESS : MP_STANDARD_ERROR; + Py_BEGIN_ALLOW_THREADS + ret = WriteFile(conn->handle, string, length, &amount_written, NULL); + Py_END_ALLOW_THREADS + return ret ? MP_SUCCESS : MP_STANDARD_ERROR; } /* @@ -33,50 +33,50 @@ conn_send_string(ConnectionObject *conn, char *string, size_t length) */ static Py_ssize_t -conn_recv_string(ConnectionObject *conn, char *buffer, - size_t buflength, char **newbuffer, size_t maxlength) +conn_recv_string(ConnectionObject *conn, char *buffer, + size_t buflength, char **newbuffer, size_t maxlength) { - DWORD left, length, full_length, err; - BOOL ret; - *newbuffer = NULL; - - Py_BEGIN_ALLOW_THREADS - ret = ReadFile(conn->handle, buffer, MIN(buflength, maxlength), - &length, NULL); - Py_END_ALLOW_THREADS - if (ret) - return length; - - err = GetLastError(); - if (err != ERROR_MORE_DATA) { - if (err == ERROR_BROKEN_PIPE) - return MP_END_OF_FILE; - return MP_STANDARD_ERROR; - } - - if (!PeekNamedPipe(conn->handle, NULL, 0, NULL, NULL, &left)) - return MP_STANDARD_ERROR; - - full_length = length + left; - if (full_length > maxlength) - return MP_BAD_MESSAGE_LENGTH; - - *newbuffer = PyMem_Malloc(full_length); - if (*newbuffer == NULL) - return MP_MEMORY_ERROR; - - memcpy(*newbuffer, buffer, length); - - Py_BEGIN_ALLOW_THREADS - ret = ReadFile(conn->handle, *newbuffer+length, left, &length, NULL); - Py_END_ALLOW_THREADS - if (ret) { - assert(length == left); - return full_length; - } else { - PyMem_Free(*newbuffer); - return MP_STANDARD_ERROR; - } + DWORD left, length, full_length, err; + BOOL ret; + *newbuffer = NULL; + + Py_BEGIN_ALLOW_THREADS + ret = ReadFile(conn->handle, buffer, MIN(buflength, maxlength), + &length, NULL); + Py_END_ALLOW_THREADS + if (ret) + return length; + + err = GetLastError(); + if (err != ERROR_MORE_DATA) { + if (err == ERROR_BROKEN_PIPE) + return MP_END_OF_FILE; + return MP_STANDARD_ERROR; + } + + if (!PeekNamedPipe(conn->handle, NULL, 0, NULL, NULL, &left)) + return MP_STANDARD_ERROR; + + full_length = length + left; + if (full_length > maxlength) + return MP_BAD_MESSAGE_LENGTH; + + *newbuffer = PyMem_Malloc(full_length); + if (*newbuffer == NULL) + return MP_MEMORY_ERROR; + + memcpy(*newbuffer, buffer, length); + + Py_BEGIN_ALLOW_THREADS + ret = ReadFile(conn->handle, *newbuffer+length, left, &length, NULL); + Py_END_ALLOW_THREADS + if (ret) { + assert(length == left); + return full_length; + } else { + PyMem_Free(*newbuffer); + return MP_STANDARD_ERROR; + } } /* @@ -86,51 +86,51 @@ conn_recv_string(ConnectionObject *conn, char *buffer, static int conn_poll(ConnectionObject *conn, double timeout, PyThreadState *_save) { - DWORD bytes, deadline, delay; - int difference, res; - BOOL block = FALSE; - - if (!PeekNamedPipe(conn->handle, NULL, 0, NULL, &bytes, NULL)) - return MP_STANDARD_ERROR; - - if (timeout == 0.0) - return bytes > 0; - - if (timeout < 0.0) - block = TRUE; - else - /* XXX does not check for overflow */ - deadline = GetTickCount() + (DWORD)(1000 * timeout + 0.5); - - Sleep(0); - - for (delay = 1 ; ; delay += 1) { - if (!PeekNamedPipe(conn->handle, NULL, 0, NULL, &bytes, NULL)) - return MP_STANDARD_ERROR; - else if (bytes > 0) - return TRUE; - - if (!block) { - difference = deadline - GetTickCount(); - if (difference < 0) - return FALSE; - if ((int)delay > difference) - delay = difference; - } - - if (delay > 20) - delay = 20; - - Sleep(delay); - - /* check for signals */ - Py_BLOCK_THREADS - res = PyErr_CheckSignals(); - Py_UNBLOCK_THREADS - - if (res) - return MP_EXCEPTION_HAS_BEEN_SET; - } + DWORD bytes, deadline, delay; + int difference, res; + BOOL block = FALSE; + + if (!PeekNamedPipe(conn->handle, NULL, 0, NULL, &bytes, NULL)) + return MP_STANDARD_ERROR; + + if (timeout == 0.0) + return bytes > 0; + + if (timeout < 0.0) + block = TRUE; + else + /* XXX does not check for overflow */ + deadline = GetTickCount() + (DWORD)(1000 * timeout + 0.5); + + Sleep(0); + + for (delay = 1 ; ; delay += 1) { + if (!PeekNamedPipe(conn->handle, NULL, 0, NULL, &bytes, NULL)) + return MP_STANDARD_ERROR; + else if (bytes > 0) + return TRUE; + + if (!block) { + difference = deadline - GetTickCount(); + if (difference < 0) + return FALSE; + if ((int)delay > difference) + delay = difference; + } + + if (delay > 20) + delay = 20; + + Sleep(delay); + + /* check for signals */ + Py_BLOCK_THREADS + res = PyErr_CheckSignals(); + Py_UNBLOCK_THREADS + + if (res) + return MP_EXCEPTION_HAS_BEEN_SET; + } } /* diff --git a/Modules/_multiprocessing/semaphore.c b/Modules/_multiprocessing/semaphore.c index 2c2fb10..261e67c 100644 --- a/Modules/_multiprocessing/semaphore.c +++ b/Modules/_multiprocessing/semaphore.c @@ -11,12 +11,12 @@ enum { RECURSIVE_MUTEX, SEMAPHORE }; typedef struct { - PyObject_HEAD - SEM_HANDLE handle; - long last_tid; - int count; - int maxvalue; - int kind; + PyObject_HEAD + SEM_HANDLE handle; + long last_tid; + int count; + int maxvalue; + int kind; } SemLockObject; #define ISMINE(o) (o->count > 0 && PyThread_get_thread_ident() == o->last_tid) @@ -40,148 +40,148 @@ typedef struct { static int _GetSemaphoreValue(HANDLE handle, long *value) { - long previous; - - switch (WaitForSingleObject(handle, 0)) { - case WAIT_OBJECT_0: - if (!ReleaseSemaphore(handle, 1, &previous)) - return MP_STANDARD_ERROR; - *value = previous + 1; - return 0; - case WAIT_TIMEOUT: - *value = 0; - return 0; - default: - return MP_STANDARD_ERROR; - } + long previous; + + switch (WaitForSingleObject(handle, 0)) { + case WAIT_OBJECT_0: + if (!ReleaseSemaphore(handle, 1, &previous)) + return MP_STANDARD_ERROR; + *value = previous + 1; + return 0; + case WAIT_TIMEOUT: + *value = 0; + return 0; + default: + return MP_STANDARD_ERROR; + } } static PyObject * semlock_acquire(SemLockObject *self, PyObject *args, PyObject *kwds) { - int blocking = 1; - double timeout; - PyObject *timeout_obj = Py_None; - DWORD res, full_msecs, msecs, start, ticks; - - static char *kwlist[] = {"block", "timeout", NULL}; - - if (!PyArg_ParseTupleAndKeywords(args, kwds, "|iO", kwlist, - &blocking, &timeout_obj)) - return NULL; - - /* calculate timeout */ - if (!blocking) { - full_msecs = 0; - } else if (timeout_obj == Py_None) { - full_msecs = INFINITE; - } else { - timeout = PyFloat_AsDouble(timeout_obj); - if (PyErr_Occurred()) - return NULL; - timeout *= 1000.0; /* convert to millisecs */ - if (timeout < 0.0) { - timeout = 0.0; - } else if (timeout >= 0.5 * INFINITE) { /* 25 days */ - PyErr_SetString(PyExc_OverflowError, - "timeout is too large"); - return NULL; - } - full_msecs = (DWORD)(timeout + 0.5); - } - - /* check whether we already own the lock */ - if (self->kind == RECURSIVE_MUTEX && ISMINE(self)) { - ++self->count; - Py_RETURN_TRUE; - } - - /* check whether we can acquire without blocking */ - if (WaitForSingleObject(self->handle, 0) == WAIT_OBJECT_0) { - self->last_tid = GetCurrentThreadId(); - ++self->count; - Py_RETURN_TRUE; - } - - msecs = full_msecs; - start = GetTickCount(); - - for ( ; ; ) { - HANDLE handles[2] = {self->handle, sigint_event}; - - /* do the wait */ - Py_BEGIN_ALLOW_THREADS - ResetEvent(sigint_event); - res = WaitForMultipleObjects(2, handles, FALSE, msecs); - Py_END_ALLOW_THREADS - - /* handle result */ - if (res != WAIT_OBJECT_0 + 1) - break; - - /* got SIGINT so give signal handler a chance to run */ - Sleep(1); - - /* if this is main thread let KeyboardInterrupt be raised */ - if (PyErr_CheckSignals()) - return NULL; - - /* recalculate timeout */ - if (msecs != INFINITE) { - ticks = GetTickCount(); - if ((DWORD)(ticks - start) >= full_msecs) - Py_RETURN_FALSE; - msecs = full_msecs - (ticks - start); - } - } - - /* handle result */ - switch (res) { - case WAIT_TIMEOUT: - Py_RETURN_FALSE; - case WAIT_OBJECT_0: - self->last_tid = GetCurrentThreadId(); - ++self->count; - Py_RETURN_TRUE; - case WAIT_FAILED: - return PyErr_SetFromWindowsErr(0); - default: - PyErr_Format(PyExc_RuntimeError, "WaitForSingleObject() or " - "WaitForMultipleObjects() gave unrecognized " - "value %d", res); - return NULL; - } + int blocking = 1; + double timeout; + PyObject *timeout_obj = Py_None; + DWORD res, full_msecs, msecs, start, ticks; + + static char *kwlist[] = {"block", "timeout", NULL}; + + if (!PyArg_ParseTupleAndKeywords(args, kwds, "|iO", kwlist, + &blocking, &timeout_obj)) + return NULL; + + /* calculate timeout */ + if (!blocking) { + full_msecs = 0; + } else if (timeout_obj == Py_None) { + full_msecs = INFINITE; + } else { + timeout = PyFloat_AsDouble(timeout_obj); + if (PyErr_Occurred()) + return NULL; + timeout *= 1000.0; /* convert to millisecs */ + if (timeout < 0.0) { + timeout = 0.0; + } else if (timeout >= 0.5 * INFINITE) { /* 25 days */ + PyErr_SetString(PyExc_OverflowError, + "timeout is too large"); + return NULL; + } + full_msecs = (DWORD)(timeout + 0.5); + } + + /* check whether we already own the lock */ + if (self->kind == RECURSIVE_MUTEX && ISMINE(self)) { + ++self->count; + Py_RETURN_TRUE; + } + + /* check whether we can acquire without blocking */ + if (WaitForSingleObject(self->handle, 0) == WAIT_OBJECT_0) { + self->last_tid = GetCurrentThreadId(); + ++self->count; + Py_RETURN_TRUE; + } + + msecs = full_msecs; + start = GetTickCount(); + + for ( ; ; ) { + HANDLE handles[2] = {self->handle, sigint_event}; + + /* do the wait */ + Py_BEGIN_ALLOW_THREADS + ResetEvent(sigint_event); + res = WaitForMultipleObjects(2, handles, FALSE, msecs); + Py_END_ALLOW_THREADS + + /* handle result */ + if (res != WAIT_OBJECT_0 + 1) + break; + + /* got SIGINT so give signal handler a chance to run */ + Sleep(1); + + /* if this is main thread let KeyboardInterrupt be raised */ + if (PyErr_CheckSignals()) + return NULL; + + /* recalculate timeout */ + if (msecs != INFINITE) { + ticks = GetTickCount(); + if ((DWORD)(ticks - start) >= full_msecs) + Py_RETURN_FALSE; + msecs = full_msecs - (ticks - start); + } + } + + /* handle result */ + switch (res) { + case WAIT_TIMEOUT: + Py_RETURN_FALSE; + case WAIT_OBJECT_0: + self->last_tid = GetCurrentThreadId(); + ++self->count; + Py_RETURN_TRUE; + case WAIT_FAILED: + return PyErr_SetFromWindowsErr(0); + default: + PyErr_Format(PyExc_RuntimeError, "WaitForSingleObject() or " + "WaitForMultipleObjects() gave unrecognized " + "value %d", res); + return NULL; + } } static PyObject * semlock_release(SemLockObject *self, PyObject *args) { - if (self->kind == RECURSIVE_MUTEX) { - if (!ISMINE(self)) { - PyErr_SetString(PyExc_AssertionError, "attempt to " - "release recursive lock not owned " - "by thread"); - return NULL; - } - if (self->count > 1) { - --self->count; - Py_RETURN_NONE; - } - assert(self->count == 1); - } - - if (!ReleaseSemaphore(self->handle, 1, NULL)) { - if (GetLastError() == ERROR_TOO_MANY_POSTS) { - PyErr_SetString(PyExc_ValueError, "semaphore or lock " - "released too many times"); - return NULL; - } else { - return PyErr_SetFromWindowsErr(0); - } - } - - --self->count; - Py_RETURN_NONE; + if (self->kind == RECURSIVE_MUTEX) { + if (!ISMINE(self)) { + PyErr_SetString(PyExc_AssertionError, "attempt to " + "release recursive lock not owned " + "by thread"); + return NULL; + } + if (self->count > 1) { + --self->count; + Py_RETURN_NONE; + } + assert(self->count == 1); + } + + if (!ReleaseSemaphore(self->handle, 1, NULL)) { + if (GetLastError() == ERROR_TOO_MANY_POSTS) { + PyErr_SetString(PyExc_ValueError, "semaphore or lock " + "released too many times"); + return NULL; + } else { + return PyErr_SetFromWindowsErr(0); + } + } + + --self->count; + Py_RETURN_NONE; } #else /* !MS_WINDOWS */ @@ -207,59 +207,59 @@ semlock_release(SemLockObject *self, PyObject *args) int sem_timedwait_save(sem_t *sem, struct timespec *deadline, PyThreadState *_save) { - int res; - unsigned long delay, difference; - struct timeval now, tvdeadline, tvdelay; - - errno = 0; - tvdeadline.tv_sec = deadline->tv_sec; - tvdeadline.tv_usec = deadline->tv_nsec / 1000; - - for (delay = 0 ; ; delay += 1000) { - /* poll */ - if (sem_trywait(sem) == 0) - return 0; - else if (errno != EAGAIN) - return MP_STANDARD_ERROR; - - /* get current time */ - if (gettimeofday(&now, NULL) < 0) - return MP_STANDARD_ERROR; - - /* check for timeout */ - if (tvdeadline.tv_sec < now.tv_sec || - (tvdeadline.tv_sec == now.tv_sec && - tvdeadline.tv_usec <= now.tv_usec)) { - errno = ETIMEDOUT; - return MP_STANDARD_ERROR; - } - - /* calculate how much time is left */ - difference = (tvdeadline.tv_sec - now.tv_sec) * 1000000 + - (tvdeadline.tv_usec - now.tv_usec); - - /* check delay not too long -- maximum is 20 msecs */ - if (delay > 20000) - delay = 20000; - if (delay > difference) - delay = difference; - - /* sleep */ - tvdelay.tv_sec = delay / 1000000; - tvdelay.tv_usec = delay % 1000000; - if (select(0, NULL, NULL, NULL, &tvdelay) < 0) - return MP_STANDARD_ERROR; - - /* check for signals */ - Py_BLOCK_THREADS - res = PyErr_CheckSignals(); - Py_UNBLOCK_THREADS - - if (res) { - errno = EINTR; - return MP_EXCEPTION_HAS_BEEN_SET; - } - } + int res; + unsigned long delay, difference; + struct timeval now, tvdeadline, tvdelay; + + errno = 0; + tvdeadline.tv_sec = deadline->tv_sec; + tvdeadline.tv_usec = deadline->tv_nsec / 1000; + + for (delay = 0 ; ; delay += 1000) { + /* poll */ + if (sem_trywait(sem) == 0) + return 0; + else if (errno != EAGAIN) + return MP_STANDARD_ERROR; + + /* get current time */ + if (gettimeofday(&now, NULL) < 0) + return MP_STANDARD_ERROR; + + /* check for timeout */ + if (tvdeadline.tv_sec < now.tv_sec || + (tvdeadline.tv_sec == now.tv_sec && + tvdeadline.tv_usec <= now.tv_usec)) { + errno = ETIMEDOUT; + return MP_STANDARD_ERROR; + } + + /* calculate how much time is left */ + difference = (tvdeadline.tv_sec - now.tv_sec) * 1000000 + + (tvdeadline.tv_usec - now.tv_usec); + + /* check delay not too long -- maximum is 20 msecs */ + if (delay > 20000) + delay = 20000; + if (delay > difference) + delay = difference; + + /* sleep */ + tvdelay.tv_sec = delay / 1000000; + tvdelay.tv_usec = delay % 1000000; + if (select(0, NULL, NULL, NULL, &tvdelay) < 0) + return MP_STANDARD_ERROR; + + /* check for signals */ + Py_BLOCK_THREADS + res = PyErr_CheckSignals(); + Py_UNBLOCK_THREADS + + if (res) { + errno = EINTR; + return MP_EXCEPTION_HAS_BEEN_SET; + } + } } #endif /* !HAVE_SEM_TIMEDWAIT */ @@ -267,129 +267,129 @@ sem_timedwait_save(sem_t *sem, struct timespec *deadline, PyThreadState *_save) static PyObject * semlock_acquire(SemLockObject *self, PyObject *args, PyObject *kwds) { - int blocking = 1, res; - double timeout; - PyObject *timeout_obj = Py_None; - struct timespec deadline = {0}; - struct timeval now; - long sec, nsec; - - static char *kwlist[] = {"block", "timeout", NULL}; - - if (!PyArg_ParseTupleAndKeywords(args, kwds, "|iO", kwlist, - &blocking, &timeout_obj)) - return NULL; - - if (self->kind == RECURSIVE_MUTEX && ISMINE(self)) { - ++self->count; - Py_RETURN_TRUE; - } - - if (timeout_obj != Py_None) { - timeout = PyFloat_AsDouble(timeout_obj); - if (PyErr_Occurred()) - return NULL; - if (timeout < 0.0) - timeout = 0.0; - - if (gettimeofday(&now, NULL) < 0) { - PyErr_SetFromErrno(PyExc_OSError); - return NULL; - } - sec = (long) timeout; - nsec = (long) (1e9 * (timeout - sec) + 0.5); - deadline.tv_sec = now.tv_sec + sec; - deadline.tv_nsec = now.tv_usec * 1000 + nsec; - deadline.tv_sec += (deadline.tv_nsec / 1000000000); - deadline.tv_nsec %= 1000000000; - } - - do { - Py_BEGIN_ALLOW_THREADS - if (blocking && timeout_obj == Py_None) - res = sem_wait(self->handle); - else if (!blocking) - res = sem_trywait(self->handle); - else - res = sem_timedwait(self->handle, &deadline); - Py_END_ALLOW_THREADS - if (res == MP_EXCEPTION_HAS_BEEN_SET) - break; - } while (res < 0 && errno == EINTR && !PyErr_CheckSignals()); - - if (res < 0) { - if (errno == EAGAIN || errno == ETIMEDOUT) - Py_RETURN_FALSE; - else if (errno == EINTR) - return NULL; - else - return PyErr_SetFromErrno(PyExc_OSError); - } - - ++self->count; - self->last_tid = PyThread_get_thread_ident(); - - Py_RETURN_TRUE; + int blocking = 1, res; + double timeout; + PyObject *timeout_obj = Py_None; + struct timespec deadline = {0}; + struct timeval now; + long sec, nsec; + + static char *kwlist[] = {"block", "timeout", NULL}; + + if (!PyArg_ParseTupleAndKeywords(args, kwds, "|iO", kwlist, + &blocking, &timeout_obj)) + return NULL; + + if (self->kind == RECURSIVE_MUTEX && ISMINE(self)) { + ++self->count; + Py_RETURN_TRUE; + } + + if (timeout_obj != Py_None) { + timeout = PyFloat_AsDouble(timeout_obj); + if (PyErr_Occurred()) + return NULL; + if (timeout < 0.0) + timeout = 0.0; + + if (gettimeofday(&now, NULL) < 0) { + PyErr_SetFromErrno(PyExc_OSError); + return NULL; + } + sec = (long) timeout; + nsec = (long) (1e9 * (timeout - sec) + 0.5); + deadline.tv_sec = now.tv_sec + sec; + deadline.tv_nsec = now.tv_usec * 1000 + nsec; + deadline.tv_sec += (deadline.tv_nsec / 1000000000); + deadline.tv_nsec %= 1000000000; + } + + do { + Py_BEGIN_ALLOW_THREADS + if (blocking && timeout_obj == Py_None) + res = sem_wait(self->handle); + else if (!blocking) + res = sem_trywait(self->handle); + else + res = sem_timedwait(self->handle, &deadline); + Py_END_ALLOW_THREADS + if (res == MP_EXCEPTION_HAS_BEEN_SET) + break; + } while (res < 0 && errno == EINTR && !PyErr_CheckSignals()); + + if (res < 0) { + if (errno == EAGAIN || errno == ETIMEDOUT) + Py_RETURN_FALSE; + else if (errno == EINTR) + return NULL; + else + return PyErr_SetFromErrno(PyExc_OSError); + } + + ++self->count; + self->last_tid = PyThread_get_thread_ident(); + + Py_RETURN_TRUE; } static PyObject * semlock_release(SemLockObject *self, PyObject *args) { - if (self->kind == RECURSIVE_MUTEX) { - if (!ISMINE(self)) { - PyErr_SetString(PyExc_AssertionError, "attempt to " - "release recursive lock not owned " - "by thread"); - return NULL; - } - if (self->count > 1) { - --self->count; - Py_RETURN_NONE; - } - assert(self->count == 1); - } else { + if (self->kind == RECURSIVE_MUTEX) { + if (!ISMINE(self)) { + PyErr_SetString(PyExc_AssertionError, "attempt to " + "release recursive lock not owned " + "by thread"); + return NULL; + } + if (self->count > 1) { + --self->count; + Py_RETURN_NONE; + } + assert(self->count == 1); + } else { #if HAVE_BROKEN_SEM_GETVALUE - /* We will only check properly the maxvalue == 1 case */ - if (self->maxvalue == 1) { - /* make sure that already locked */ - if (sem_trywait(self->handle) < 0) { - if (errno != EAGAIN) { - PyErr_SetFromErrno(PyExc_OSError); - return NULL; - } - /* it is already locked as expected */ - } else { - /* it was not locked so undo wait and raise */ - if (sem_post(self->handle) < 0) { - PyErr_SetFromErrno(PyExc_OSError); - return NULL; - } - PyErr_SetString(PyExc_ValueError, "semaphore " - "or lock released too many " - "times"); - return NULL; - } - } + /* We will only check properly the maxvalue == 1 case */ + if (self->maxvalue == 1) { + /* make sure that already locked */ + if (sem_trywait(self->handle) < 0) { + if (errno != EAGAIN) { + PyErr_SetFromErrno(PyExc_OSError); + return NULL; + } + /* it is already locked as expected */ + } else { + /* it was not locked so undo wait and raise */ + if (sem_post(self->handle) < 0) { + PyErr_SetFromErrno(PyExc_OSError); + return NULL; + } + PyErr_SetString(PyExc_ValueError, "semaphore " + "or lock released too many " + "times"); + return NULL; + } + } #else - int sval; - - /* This check is not an absolute guarantee that the semaphore - does not rise above maxvalue. */ - if (sem_getvalue(self->handle, &sval) < 0) { - return PyErr_SetFromErrno(PyExc_OSError); - } else if (sval >= self->maxvalue) { - PyErr_SetString(PyExc_ValueError, "semaphore or lock " - "released too many times"); - return NULL; - } + int sval; + + /* This check is not an absolute guarantee that the semaphore + does not rise above maxvalue. */ + if (sem_getvalue(self->handle, &sval) < 0) { + return PyErr_SetFromErrno(PyExc_OSError); + } else if (sval >= self->maxvalue) { + PyErr_SetString(PyExc_ValueError, "semaphore or lock " + "released too many times"); + return NULL; + } #endif - } + } - if (sem_post(self->handle) < 0) - return PyErr_SetFromErrno(PyExc_OSError); + if (sem_post(self->handle) < 0) + return PyErr_SetFromErrno(PyExc_OSError); - --self->count; - Py_RETURN_NONE; + --self->count; + Py_RETURN_NONE; } #endif /* !MS_WINDOWS */ @@ -401,111 +401,111 @@ semlock_release(SemLockObject *self, PyObject *args) static PyObject * newsemlockobject(PyTypeObject *type, SEM_HANDLE handle, int kind, int maxvalue) { - SemLockObject *self; - - self = PyObject_New(SemLockObject, type); - if (!self) - return NULL; - self->handle = handle; - self->kind = kind; - self->count = 0; - self->last_tid = 0; - self->maxvalue = maxvalue; - return (PyObject*)self; + SemLockObject *self; + + self = PyObject_New(SemLockObject, type); + if (!self) + return NULL; + self->handle = handle; + self->kind = kind; + self->count = 0; + self->last_tid = 0; + self->maxvalue = maxvalue; + return (PyObject*)self; } static PyObject * semlock_new(PyTypeObject *type, PyObject *args, PyObject *kwds) { - char buffer[256]; - SEM_HANDLE handle = SEM_FAILED; - int kind, maxvalue, value; - PyObject *result; - static char *kwlist[] = {"kind", "value", "maxvalue", NULL}; - static int counter = 0; + char buffer[256]; + SEM_HANDLE handle = SEM_FAILED; + int kind, maxvalue, value; + PyObject *result; + static char *kwlist[] = {"kind", "value", "maxvalue", NULL}; + static int counter = 0; - if (!PyArg_ParseTupleAndKeywords(args, kwds, "iii", kwlist, - &kind, &value, &maxvalue)) - return NULL; + if (!PyArg_ParseTupleAndKeywords(args, kwds, "iii", kwlist, + &kind, &value, &maxvalue)) + return NULL; - if (kind != RECURSIVE_MUTEX && kind != SEMAPHORE) { - PyErr_SetString(PyExc_ValueError, "unrecognized kind"); - return NULL; - } + if (kind != RECURSIVE_MUTEX && kind != SEMAPHORE) { + PyErr_SetString(PyExc_ValueError, "unrecognized kind"); + return NULL; + } - PyOS_snprintf(buffer, sizeof(buffer), "/mp%d-%d", getpid(), counter++); + PyOS_snprintf(buffer, sizeof(buffer), "/mp%d-%d", getpid(), counter++); - SEM_CLEAR_ERROR(); - handle = SEM_CREATE(buffer, value, maxvalue); - /* On Windows we should fail if GetLastError()==ERROR_ALREADY_EXISTS */ - if (handle == SEM_FAILED || SEM_GET_LAST_ERROR() != 0) - goto failure; + SEM_CLEAR_ERROR(); + handle = SEM_CREATE(buffer, value, maxvalue); + /* On Windows we should fail if GetLastError()==ERROR_ALREADY_EXISTS */ + if (handle == SEM_FAILED || SEM_GET_LAST_ERROR() != 0) + goto failure; - if (SEM_UNLINK(buffer) < 0) - goto failure; + if (SEM_UNLINK(buffer) < 0) + goto failure; - result = newsemlockobject(type, handle, kind, maxvalue); - if (!result) - goto failure; + result = newsemlockobject(type, handle, kind, maxvalue); + if (!result) + goto failure; - return result; + return result; failure: - if (handle != SEM_FAILED) - SEM_CLOSE(handle); - mp_SetError(NULL, MP_STANDARD_ERROR); - return NULL; + if (handle != SEM_FAILED) + SEM_CLOSE(handle); + mp_SetError(NULL, MP_STANDARD_ERROR); + return NULL; } static PyObject * semlock_rebuild(PyTypeObject *type, PyObject *args) { - SEM_HANDLE handle; - int kind, maxvalue; + SEM_HANDLE handle; + int kind, maxvalue; - if (!PyArg_ParseTuple(args, F_SEM_HANDLE "ii", - &handle, &kind, &maxvalue)) - return NULL; + if (!PyArg_ParseTuple(args, F_SEM_HANDLE "ii", + &handle, &kind, &maxvalue)) + return NULL; - return newsemlockobject(type, handle, kind, maxvalue); + return newsemlockobject(type, handle, kind, maxvalue); } static void semlock_dealloc(SemLockObject* self) { - if (self->handle != SEM_FAILED) - SEM_CLOSE(self->handle); - PyObject_Del(self); + if (self->handle != SEM_FAILED) + SEM_CLOSE(self->handle); + PyObject_Del(self); } static PyObject * semlock_count(SemLockObject *self) { - return PyInt_FromLong((long)self->count); + return PyInt_FromLong((long)self->count); } static PyObject * semlock_ismine(SemLockObject *self) { - /* only makes sense for a lock */ - return PyBool_FromLong(ISMINE(self)); + /* only makes sense for a lock */ + return PyBool_FromLong(ISMINE(self)); } static PyObject * semlock_getvalue(SemLockObject *self) { #if HAVE_BROKEN_SEM_GETVALUE - PyErr_SetNone(PyExc_NotImplementedError); - return NULL; + PyErr_SetNone(PyExc_NotImplementedError); + return NULL; #else - int sval; - if (SEM_GETVALUE(self->handle, &sval) < 0) - return mp_SetError(NULL, MP_STANDARD_ERROR); - /* some posix implementations use negative numbers to indicate - the number of waiting threads */ - if (sval < 0) - sval = 0; - return PyInt_FromLong((long)sval); + int sval; + if (SEM_GETVALUE(self->handle, &sval) < 0) + return mp_SetError(NULL, MP_STANDARD_ERROR); + /* some posix implementations use negative numbers to indicate + the number of waiting threads */ + if (sval < 0) + sval = 0; + return PyInt_FromLong((long)sval); #endif } @@ -513,28 +513,28 @@ static PyObject * semlock_iszero(SemLockObject *self) { #if HAVE_BROKEN_SEM_GETVALUE - if (sem_trywait(self->handle) < 0) { - if (errno == EAGAIN) - Py_RETURN_TRUE; - return mp_SetError(NULL, MP_STANDARD_ERROR); - } else { - if (sem_post(self->handle) < 0) - return mp_SetError(NULL, MP_STANDARD_ERROR); - Py_RETURN_FALSE; - } + if (sem_trywait(self->handle) < 0) { + if (errno == EAGAIN) + Py_RETURN_TRUE; + return mp_SetError(NULL, MP_STANDARD_ERROR); + } else { + if (sem_post(self->handle) < 0) + return mp_SetError(NULL, MP_STANDARD_ERROR); + Py_RETURN_FALSE; + } #else - int sval; - if (SEM_GETVALUE(self->handle, &sval) < 0) - return mp_SetError(NULL, MP_STANDARD_ERROR); - return PyBool_FromLong((long)sval == 0); + int sval; + if (SEM_GETVALUE(self->handle, &sval) < 0) + return mp_SetError(NULL, MP_STANDARD_ERROR); + return PyBool_FromLong((long)sval == 0); #endif } static PyObject * semlock_afterfork(SemLockObject *self) { - self->count = 0; - Py_RETURN_NONE; + self->count = 0; + Py_RETURN_NONE; } /* @@ -542,27 +542,27 @@ semlock_afterfork(SemLockObject *self) */ static PyMethodDef semlock_methods[] = { - {"acquire", (PyCFunction)semlock_acquire, METH_VARARGS | METH_KEYWORDS, - "acquire the semaphore/lock"}, - {"release", (PyCFunction)semlock_release, METH_NOARGS, - "release the semaphore/lock"}, + {"acquire", (PyCFunction)semlock_acquire, METH_VARARGS | METH_KEYWORDS, + "acquire the semaphore/lock"}, + {"release", (PyCFunction)semlock_release, METH_NOARGS, + "release the semaphore/lock"}, {"__enter__", (PyCFunction)semlock_acquire, METH_VARARGS | METH_KEYWORDS, - "enter the semaphore/lock"}, - {"__exit__", (PyCFunction)semlock_release, METH_VARARGS, - "exit the semaphore/lock"}, - {"_count", (PyCFunction)semlock_count, METH_NOARGS, - "num of `acquire()`s minus num of `release()`s for this process"}, - {"_is_mine", (PyCFunction)semlock_ismine, METH_NOARGS, - "whether the lock is owned by this thread"}, - {"_get_value", (PyCFunction)semlock_getvalue, METH_NOARGS, - "get the value of the semaphore"}, - {"_is_zero", (PyCFunction)semlock_iszero, METH_NOARGS, - "returns whether semaphore has value zero"}, - {"_rebuild", (PyCFunction)semlock_rebuild, METH_VARARGS | METH_CLASS, - ""}, - {"_after_fork", (PyCFunction)semlock_afterfork, METH_NOARGS, - "rezero the net acquisition count after fork()"}, - {NULL} + "enter the semaphore/lock"}, + {"__exit__", (PyCFunction)semlock_release, METH_VARARGS, + "exit the semaphore/lock"}, + {"_count", (PyCFunction)semlock_count, METH_NOARGS, + "num of `acquire()`s minus num of `release()`s for this process"}, + {"_is_mine", (PyCFunction)semlock_ismine, METH_NOARGS, + "whether the lock is owned by this thread"}, + {"_get_value", (PyCFunction)semlock_getvalue, METH_NOARGS, + "get the value of the semaphore"}, + {"_is_zero", (PyCFunction)semlock_iszero, METH_NOARGS, + "returns whether semaphore has value zero"}, + {"_rebuild", (PyCFunction)semlock_rebuild, METH_VARARGS | METH_CLASS, + ""}, + {"_after_fork", (PyCFunction)semlock_afterfork, METH_NOARGS, + "rezero the net acquisition count after fork()"}, + {NULL} }; /* @@ -570,13 +570,13 @@ static PyMethodDef semlock_methods[] = { */ static PyMemberDef semlock_members[] = { - {"handle", T_SEM_HANDLE, offsetof(SemLockObject, handle), READONLY, - ""}, - {"kind", T_INT, offsetof(SemLockObject, kind), READONLY, - ""}, - {"maxvalue", T_INT, offsetof(SemLockObject, maxvalue), READONLY, - ""}, - {NULL} + {"handle", T_SEM_HANDLE, offsetof(SemLockObject, handle), READONLY, + ""}, + {"kind", T_INT, offsetof(SemLockObject, kind), READONLY, + ""}, + {"maxvalue", T_INT, offsetof(SemLockObject, maxvalue), READONLY, + ""}, + {NULL} }; /* @@ -584,42 +584,42 @@ static PyMemberDef semlock_members[] = { */ PyTypeObject SemLockType = { - PyVarObject_HEAD_INIT(NULL, 0) - /* tp_name */ "_multiprocessing.SemLock", - /* tp_basicsize */ sizeof(SemLockObject), - /* tp_itemsize */ 0, - /* tp_dealloc */ (destructor)semlock_dealloc, - /* tp_print */ 0, - /* tp_getattr */ 0, - /* tp_setattr */ 0, - /* tp_compare */ 0, - /* tp_repr */ 0, - /* tp_as_number */ 0, - /* tp_as_sequence */ 0, - /* tp_as_mapping */ 0, - /* tp_hash */ 0, - /* tp_call */ 0, - /* tp_str */ 0, - /* tp_getattro */ 0, - /* tp_setattro */ 0, - /* tp_as_buffer */ 0, - /* tp_flags */ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, - /* tp_doc */ "Semaphore/Mutex type", - /* tp_traverse */ 0, - /* tp_clear */ 0, - /* tp_richcompare */ 0, - /* tp_weaklistoffset */ 0, - /* tp_iter */ 0, - /* tp_iternext */ 0, - /* tp_methods */ semlock_methods, - /* tp_members */ semlock_members, - /* tp_getset */ 0, - /* tp_base */ 0, - /* tp_dict */ 0, - /* tp_descr_get */ 0, - /* tp_descr_set */ 0, - /* tp_dictoffset */ 0, - /* tp_init */ 0, - /* tp_alloc */ 0, - /* tp_new */ semlock_new, + PyVarObject_HEAD_INIT(NULL, 0) + /* tp_name */ "_multiprocessing.SemLock", + /* tp_basicsize */ sizeof(SemLockObject), + /* tp_itemsize */ 0, + /* tp_dealloc */ (destructor)semlock_dealloc, + /* tp_print */ 0, + /* tp_getattr */ 0, + /* tp_setattr */ 0, + /* tp_compare */ 0, + /* tp_repr */ 0, + /* tp_as_number */ 0, + /* tp_as_sequence */ 0, + /* tp_as_mapping */ 0, + /* tp_hash */ 0, + /* tp_call */ 0, + /* tp_str */ 0, + /* tp_getattro */ 0, + /* tp_setattro */ 0, + /* tp_as_buffer */ 0, + /* tp_flags */ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, + /* tp_doc */ "Semaphore/Mutex type", + /* tp_traverse */ 0, + /* tp_clear */ 0, + /* tp_richcompare */ 0, + /* tp_weaklistoffset */ 0, + /* tp_iter */ 0, + /* tp_iternext */ 0, + /* tp_methods */ semlock_methods, + /* tp_members */ semlock_members, + /* tp_getset */ 0, + /* tp_base */ 0, + /* tp_dict */ 0, + /* tp_descr_get */ 0, + /* tp_descr_set */ 0, + /* tp_dictoffset */ 0, + /* tp_init */ 0, + /* tp_alloc */ 0, + /* tp_new */ semlock_new, }; diff --git a/Modules/_multiprocessing/socket_connection.c b/Modules/_multiprocessing/socket_connection.c index ad4005b..7ebf338 100644 --- a/Modules/_multiprocessing/socket_connection.c +++ b/Modules/_multiprocessing/socket_connection.c @@ -25,45 +25,45 @@ static Py_ssize_t _conn_sendall(HANDLE h, char *string, size_t length) { - char *p = string; - Py_ssize_t res; - - while (length > 0) { - res = WRITE(h, p, length); - if (res < 0) - return MP_SOCKET_ERROR; - length -= res; - p += res; - } - - return MP_SUCCESS; + char *p = string; + Py_ssize_t res; + + while (length > 0) { + res = WRITE(h, p, length); + if (res < 0) + return MP_SOCKET_ERROR; + length -= res; + p += res; + } + + return MP_SUCCESS; } /* - * Receive string of exact length from file descriptor + * Receive string of exact length from file descriptor */ static Py_ssize_t _conn_recvall(HANDLE h, char *buffer, size_t length) { - size_t remaining = length; - Py_ssize_t temp; - char *p = buffer; - - while (remaining > 0) { - temp = READ(h, p, remaining); - if (temp <= 0) { - if (temp == 0) - return remaining == length ? - MP_END_OF_FILE : MP_EARLY_END_OF_FILE; - else - return temp; - } - remaining -= temp; - p += temp; - } - - return MP_SUCCESS; + size_t remaining = length; + Py_ssize_t temp; + char *p = buffer; + + while (remaining > 0) { + temp = READ(h, p, remaining); + if (temp <= 0) { + if (temp == 0) + return remaining == length ? + MP_END_OF_FILE : MP_EARLY_END_OF_FILE; + else + return temp; + } + remaining -= temp; + p += temp; + } + + return MP_SUCCESS; } /* @@ -73,38 +73,38 @@ _conn_recvall(HANDLE h, char *buffer, size_t length) static Py_ssize_t conn_send_string(ConnectionObject *conn, char *string, size_t length) { - Py_ssize_t res; - /* The "header" of the message is a 32 bit unsigned number (in - network order) which specifies the length of the "body". If - the message is shorter than about 16kb then it is quicker to - combine the "header" and the "body" of the message and send - them at once. */ - if (length < (16*1024)) { - char *message; - - message = PyMem_Malloc(length+4); - if (message == NULL) - return MP_MEMORY_ERROR; - - *(UINT32*)message = htonl((UINT32)length); - memcpy(message+4, string, length); - Py_BEGIN_ALLOW_THREADS - res = _conn_sendall(conn->handle, message, length+4); - Py_END_ALLOW_THREADS - PyMem_Free(message); - } else { - UINT32 lenbuff; - - if (length > MAX_MESSAGE_LENGTH) - return MP_BAD_MESSAGE_LENGTH; - - lenbuff = htonl((UINT32)length); - Py_BEGIN_ALLOW_THREADS - res = _conn_sendall(conn->handle, (char*)&lenbuff, 4) || - _conn_sendall(conn->handle, string, length); - Py_END_ALLOW_THREADS - } - return res; + Py_ssize_t res; + /* The "header" of the message is a 32 bit unsigned number (in + network order) which specifies the length of the "body". If + the message is shorter than about 16kb then it is quicker to + combine the "header" and the "body" of the message and send + them at once. */ + if (length < (16*1024)) { + char *message; + + message = PyMem_Malloc(length+4); + if (message == NULL) + return MP_MEMORY_ERROR; + + *(UINT32*)message = htonl((UINT32)length); + memcpy(message+4, string, length); + Py_BEGIN_ALLOW_THREADS + res = _conn_sendall(conn->handle, message, length+4); + Py_END_ALLOW_THREADS + PyMem_Free(message); + } else { + UINT32 lenbuff; + + if (length > MAX_MESSAGE_LENGTH) + return MP_BAD_MESSAGE_LENGTH; + + lenbuff = htonl((UINT32)length); + Py_BEGIN_ALLOW_THREADS + res = _conn_sendall(conn->handle, (char*)&lenbuff, 4) || + _conn_sendall(conn->handle, string, length); + Py_END_ALLOW_THREADS + } + return res; } /* @@ -114,38 +114,38 @@ conn_send_string(ConnectionObject *conn, char *string, size_t length) */ static Py_ssize_t -conn_recv_string(ConnectionObject *conn, char *buffer, - size_t buflength, char **newbuffer, size_t maxlength) +conn_recv_string(ConnectionObject *conn, char *buffer, + size_t buflength, char **newbuffer, size_t maxlength) { - int res; - UINT32 ulength; - - *newbuffer = NULL; - - Py_BEGIN_ALLOW_THREADS - res = _conn_recvall(conn->handle, (char*)&ulength, 4); - Py_END_ALLOW_THREADS - if (res < 0) - return res; - - ulength = ntohl(ulength); - if (ulength > maxlength) - return MP_BAD_MESSAGE_LENGTH; - - if (ulength <= buflength) { - Py_BEGIN_ALLOW_THREADS - res = _conn_recvall(conn->handle, buffer, (size_t)ulength); - Py_END_ALLOW_THREADS - return res < 0 ? res : ulength; - } else { - *newbuffer = PyMem_Malloc((size_t)ulength); - if (*newbuffer == NULL) - return MP_MEMORY_ERROR; - Py_BEGIN_ALLOW_THREADS - res = _conn_recvall(conn->handle, *newbuffer, (size_t)ulength); - Py_END_ALLOW_THREADS - return res < 0 ? (Py_ssize_t)res : (Py_ssize_t)ulength; - } + int res; + UINT32 ulength; + + *newbuffer = NULL; + + Py_BEGIN_ALLOW_THREADS + res = _conn_recvall(conn->handle, (char*)&ulength, 4); + Py_END_ALLOW_THREADS + if (res < 0) + return res; + + ulength = ntohl(ulength); + if (ulength > maxlength) + return MP_BAD_MESSAGE_LENGTH; + + if (ulength <= buflength) { + Py_BEGIN_ALLOW_THREADS + res = _conn_recvall(conn->handle, buffer, (size_t)ulength); + Py_END_ALLOW_THREADS + return res < 0 ? res : ulength; + } else { + *newbuffer = PyMem_Malloc((size_t)ulength); + if (*newbuffer == NULL) + return MP_MEMORY_ERROR; + Py_BEGIN_ALLOW_THREADS + res = _conn_recvall(conn->handle, *newbuffer, (size_t)ulength); + Py_END_ALLOW_THREADS + return res < 0 ? (Py_ssize_t)res : (Py_ssize_t)ulength; + } } /* @@ -155,41 +155,41 @@ conn_recv_string(ConnectionObject *conn, char *buffer, static int conn_poll(ConnectionObject *conn, double timeout, PyThreadState *_save) { - int res; - fd_set rfds; - - /* - * Verify the handle, issue 3321. Not required for windows. - */ - #ifndef MS_WINDOWS - if (((int)conn->handle) < 0 || ((int)conn->handle) >= FD_SETSIZE) { - Py_BLOCK_THREADS - PyErr_SetString(PyExc_IOError, "handle out of range in select()"); - Py_UNBLOCK_THREADS - return MP_EXCEPTION_HAS_BEEN_SET; - } - #endif - - FD_ZERO(&rfds); - FD_SET((SOCKET)conn->handle, &rfds); - - if (timeout < 0.0) { - res = select((int)conn->handle+1, &rfds, NULL, NULL, NULL); - } else { - struct timeval tv; - tv.tv_sec = (long)timeout; - tv.tv_usec = (long)((timeout - tv.tv_sec) * 1e6 + 0.5); - res = select((int)conn->handle+1, &rfds, NULL, NULL, &tv); - } - - if (res < 0) { - return MP_SOCKET_ERROR; - } else if (FD_ISSET(conn->handle, &rfds)) { - return TRUE; - } else { - assert(res == 0); - return FALSE; - } + int res; + fd_set rfds; + + /* + * Verify the handle, issue 3321. Not required for windows. + */ + #ifndef MS_WINDOWS + if (((int)conn->handle) < 0 || ((int)conn->handle) >= FD_SETSIZE) { + Py_BLOCK_THREADS + PyErr_SetString(PyExc_IOError, "handle out of range in select()"); + Py_UNBLOCK_THREADS + return MP_EXCEPTION_HAS_BEEN_SET; + } + #endif + + FD_ZERO(&rfds); + FD_SET((SOCKET)conn->handle, &rfds); + + if (timeout < 0.0) { + res = select((int)conn->handle+1, &rfds, NULL, NULL, NULL); + } else { + struct timeval tv; + tv.tv_sec = (long)timeout; + tv.tv_usec = (long)((timeout - tv.tv_sec) * 1e6 + 0.5); + res = select((int)conn->handle+1, &rfds, NULL, NULL, &tv); + } + + if (res < 0) { + return MP_SOCKET_ERROR; + } else if (FD_ISSET(conn->handle, &rfds)) { + return TRUE; + } else { + assert(res == 0); + return FALSE; + } } /* diff --git a/Modules/_multiprocessing/win32_functions.c b/Modules/_multiprocessing/win32_functions.c index 549c151..1666aa9 100644 --- a/Modules/_multiprocessing/win32_functions.c +++ b/Modules/_multiprocessing/win32_functions.c @@ -19,248 +19,248 @@ static PyObject * win32_CloseHandle(PyObject *self, PyObject *args) { - HANDLE hObject; - BOOL success; + HANDLE hObject; + BOOL success; - if (!PyArg_ParseTuple(args, F_HANDLE, &hObject)) - return NULL; + if (!PyArg_ParseTuple(args, F_HANDLE, &hObject)) + return NULL; - Py_BEGIN_ALLOW_THREADS - success = CloseHandle(hObject); - Py_END_ALLOW_THREADS + Py_BEGIN_ALLOW_THREADS + success = CloseHandle(hObject); + Py_END_ALLOW_THREADS - if (!success) - return PyErr_SetFromWindowsErr(0); + if (!success) + return PyErr_SetFromWindowsErr(0); - Py_RETURN_NONE; + Py_RETURN_NONE; } static PyObject * win32_ConnectNamedPipe(PyObject *self, PyObject *args) { - HANDLE hNamedPipe; - LPOVERLAPPED lpOverlapped; - BOOL success; + HANDLE hNamedPipe; + LPOVERLAPPED lpOverlapped; + BOOL success; - if (!PyArg_ParseTuple(args, F_HANDLE F_POINTER, - &hNamedPipe, &lpOverlapped)) - return NULL; + if (!PyArg_ParseTuple(args, F_HANDLE F_POINTER, + &hNamedPipe, &lpOverlapped)) + return NULL; - Py_BEGIN_ALLOW_THREADS - success = ConnectNamedPipe(hNamedPipe, lpOverlapped); - Py_END_ALLOW_THREADS + Py_BEGIN_ALLOW_THREADS + success = ConnectNamedPipe(hNamedPipe, lpOverlapped); + Py_END_ALLOW_THREADS - if (!success) - return PyErr_SetFromWindowsErr(0); + if (!success) + return PyErr_SetFromWindowsErr(0); - Py_RETURN_NONE; + Py_RETURN_NONE; } static PyObject * win32_CreateFile(PyObject *self, PyObject *args) { - LPCTSTR lpFileName; - DWORD dwDesiredAccess; - DWORD dwShareMode; - LPSECURITY_ATTRIBUTES lpSecurityAttributes; - DWORD dwCreationDisposition; - DWORD dwFlagsAndAttributes; - HANDLE hTemplateFile; - HANDLE handle; - - if (!PyArg_ParseTuple(args, "s" F_DWORD F_DWORD F_POINTER - F_DWORD F_DWORD F_HANDLE, - &lpFileName, &dwDesiredAccess, &dwShareMode, - &lpSecurityAttributes, &dwCreationDisposition, - &dwFlagsAndAttributes, &hTemplateFile)) - return NULL; - - Py_BEGIN_ALLOW_THREADS - handle = CreateFile(lpFileName, dwDesiredAccess, - dwShareMode, lpSecurityAttributes, - dwCreationDisposition, - dwFlagsAndAttributes, hTemplateFile); - Py_END_ALLOW_THREADS - - if (handle == INVALID_HANDLE_VALUE) - return PyErr_SetFromWindowsErr(0); - - return Py_BuildValue(F_HANDLE, handle); + LPCTSTR lpFileName; + DWORD dwDesiredAccess; + DWORD dwShareMode; + LPSECURITY_ATTRIBUTES lpSecurityAttributes; + DWORD dwCreationDisposition; + DWORD dwFlagsAndAttributes; + HANDLE hTemplateFile; + HANDLE handle; + + if (!PyArg_ParseTuple(args, "s" F_DWORD F_DWORD F_POINTER + F_DWORD F_DWORD F_HANDLE, + &lpFileName, &dwDesiredAccess, &dwShareMode, + &lpSecurityAttributes, &dwCreationDisposition, + &dwFlagsAndAttributes, &hTemplateFile)) + return NULL; + + Py_BEGIN_ALLOW_THREADS + handle = CreateFile(lpFileName, dwDesiredAccess, + dwShareMode, lpSecurityAttributes, + dwCreationDisposition, + dwFlagsAndAttributes, hTemplateFile); + Py_END_ALLOW_THREADS + + if (handle == INVALID_HANDLE_VALUE) + return PyErr_SetFromWindowsErr(0); + + return Py_BuildValue(F_HANDLE, handle); } static PyObject * win32_CreateNamedPipe(PyObject *self, PyObject *args) { - LPCTSTR lpName; - DWORD dwOpenMode; - DWORD dwPipeMode; - DWORD nMaxInstances; - DWORD nOutBufferSize; - DWORD nInBufferSize; - DWORD nDefaultTimeOut; - LPSECURITY_ATTRIBUTES lpSecurityAttributes; - HANDLE handle; - - if (!PyArg_ParseTuple(args, "s" F_DWORD F_DWORD F_DWORD - F_DWORD F_DWORD F_DWORD F_POINTER, - &lpName, &dwOpenMode, &dwPipeMode, - &nMaxInstances, &nOutBufferSize, - &nInBufferSize, &nDefaultTimeOut, - &lpSecurityAttributes)) - return NULL; - - Py_BEGIN_ALLOW_THREADS - handle = CreateNamedPipe(lpName, dwOpenMode, dwPipeMode, - nMaxInstances, nOutBufferSize, - nInBufferSize, nDefaultTimeOut, - lpSecurityAttributes); - Py_END_ALLOW_THREADS - - if (handle == INVALID_HANDLE_VALUE) - return PyErr_SetFromWindowsErr(0); - - return Py_BuildValue(F_HANDLE, handle); + LPCTSTR lpName; + DWORD dwOpenMode; + DWORD dwPipeMode; + DWORD nMaxInstances; + DWORD nOutBufferSize; + DWORD nInBufferSize; + DWORD nDefaultTimeOut; + LPSECURITY_ATTRIBUTES lpSecurityAttributes; + HANDLE handle; + + if (!PyArg_ParseTuple(args, "s" F_DWORD F_DWORD F_DWORD + F_DWORD F_DWORD F_DWORD F_POINTER, + &lpName, &dwOpenMode, &dwPipeMode, + &nMaxInstances, &nOutBufferSize, + &nInBufferSize, &nDefaultTimeOut, + &lpSecurityAttributes)) + return NULL; + + Py_BEGIN_ALLOW_THREADS + handle = CreateNamedPipe(lpName, dwOpenMode, dwPipeMode, + nMaxInstances, nOutBufferSize, + nInBufferSize, nDefaultTimeOut, + lpSecurityAttributes); + Py_END_ALLOW_THREADS + + if (handle == INVALID_HANDLE_VALUE) + return PyErr_SetFromWindowsErr(0); + + return Py_BuildValue(F_HANDLE, handle); } static PyObject * win32_ExitProcess(PyObject *self, PyObject *args) { - UINT uExitCode; + UINT uExitCode; - if (!PyArg_ParseTuple(args, "I", &uExitCode)) - return NULL; + if (!PyArg_ParseTuple(args, "I", &uExitCode)) + return NULL; - #if defined(Py_DEBUG) - SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOALIGNMENTFAULTEXCEPT|SEM_NOGPFAULTERRORBOX|SEM_NOOPENFILEERRORBOX); - _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG); - #endif + #if defined(Py_DEBUG) + SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOALIGNMENTFAULTEXCEPT|SEM_NOGPFAULTERRORBOX|SEM_NOOPENFILEERRORBOX); + _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG); + #endif - ExitProcess(uExitCode); + ExitProcess(uExitCode); - return NULL; + return NULL; } static PyObject * win32_GetLastError(PyObject *self, PyObject *args) { - return Py_BuildValue(F_DWORD, GetLastError()); + return Py_BuildValue(F_DWORD, GetLastError()); } static PyObject * win32_OpenProcess(PyObject *self, PyObject *args) { - DWORD dwDesiredAccess; - BOOL bInheritHandle; - DWORD dwProcessId; - HANDLE handle; + DWORD dwDesiredAccess; + BOOL bInheritHandle; + DWORD dwProcessId; + HANDLE handle; - if (!PyArg_ParseTuple(args, F_DWORD "i" F_DWORD, - &dwDesiredAccess, &bInheritHandle, &dwProcessId)) - return NULL; + if (!PyArg_ParseTuple(args, F_DWORD "i" F_DWORD, + &dwDesiredAccess, &bInheritHandle, &dwProcessId)) + return NULL; - handle = OpenProcess(dwDesiredAccess, bInheritHandle, dwProcessId); - if (handle == NULL) - return PyErr_SetFromWindowsErr(0); + handle = OpenProcess(dwDesiredAccess, bInheritHandle, dwProcessId); + if (handle == NULL) + return PyErr_SetFromWindowsErr(0); - return Py_BuildValue(F_HANDLE, handle); + return Py_BuildValue(F_HANDLE, handle); } static PyObject * win32_SetNamedPipeHandleState(PyObject *self, PyObject *args) { - HANDLE hNamedPipe; - PyObject *oArgs[3]; - DWORD dwArgs[3], *pArgs[3] = {NULL, NULL, NULL}; - int i; - - if (!PyArg_ParseTuple(args, F_HANDLE "OOO", - &hNamedPipe, &oArgs[0], &oArgs[1], &oArgs[2])) - return NULL; - - PyErr_Clear(); - - for (i = 0 ; i < 3 ; i++) { - if (oArgs[i] != Py_None) { - dwArgs[i] = PyInt_AsUnsignedLongMask(oArgs[i]); - if (PyErr_Occurred()) - return NULL; - pArgs[i] = &dwArgs[i]; - } - } - - if (!SetNamedPipeHandleState(hNamedPipe, pArgs[0], pArgs[1], pArgs[2])) - return PyErr_SetFromWindowsErr(0); - - Py_RETURN_NONE; + HANDLE hNamedPipe; + PyObject *oArgs[3]; + DWORD dwArgs[3], *pArgs[3] = {NULL, NULL, NULL}; + int i; + + if (!PyArg_ParseTuple(args, F_HANDLE "OOO", + &hNamedPipe, &oArgs[0], &oArgs[1], &oArgs[2])) + return NULL; + + PyErr_Clear(); + + for (i = 0 ; i < 3 ; i++) { + if (oArgs[i] != Py_None) { + dwArgs[i] = PyInt_AsUnsignedLongMask(oArgs[i]); + if (PyErr_Occurred()) + return NULL; + pArgs[i] = &dwArgs[i]; + } + } + + if (!SetNamedPipeHandleState(hNamedPipe, pArgs[0], pArgs[1], pArgs[2])) + return PyErr_SetFromWindowsErr(0); + + Py_RETURN_NONE; } static PyObject * win32_WaitNamedPipe(PyObject *self, PyObject *args) { - LPCTSTR lpNamedPipeName; - DWORD nTimeOut; - BOOL success; + LPCTSTR lpNamedPipeName; + DWORD nTimeOut; + BOOL success; - if (!PyArg_ParseTuple(args, "s" F_DWORD, &lpNamedPipeName, &nTimeOut)) - return NULL; + if (!PyArg_ParseTuple(args, "s" F_DWORD, &lpNamedPipeName, &nTimeOut)) + return NULL; - Py_BEGIN_ALLOW_THREADS - success = WaitNamedPipe(lpNamedPipeName, nTimeOut); - Py_END_ALLOW_THREADS + Py_BEGIN_ALLOW_THREADS + success = WaitNamedPipe(lpNamedPipeName, nTimeOut); + Py_END_ALLOW_THREADS - if (!success) - return PyErr_SetFromWindowsErr(0); + if (!success) + return PyErr_SetFromWindowsErr(0); - Py_RETURN_NONE; + Py_RETURN_NONE; } static PyMethodDef win32_methods[] = { - WIN32_FUNCTION(CloseHandle), - WIN32_FUNCTION(GetLastError), - WIN32_FUNCTION(OpenProcess), - WIN32_FUNCTION(ExitProcess), - WIN32_FUNCTION(ConnectNamedPipe), - WIN32_FUNCTION(CreateFile), - WIN32_FUNCTION(CreateNamedPipe), - WIN32_FUNCTION(SetNamedPipeHandleState), - WIN32_FUNCTION(WaitNamedPipe), - {NULL} + WIN32_FUNCTION(CloseHandle), + WIN32_FUNCTION(GetLastError), + WIN32_FUNCTION(OpenProcess), + WIN32_FUNCTION(ExitProcess), + WIN32_FUNCTION(ConnectNamedPipe), + WIN32_FUNCTION(CreateFile), + WIN32_FUNCTION(CreateNamedPipe), + WIN32_FUNCTION(SetNamedPipeHandleState), + WIN32_FUNCTION(WaitNamedPipe), + {NULL} }; PyTypeObject Win32Type = { - PyVarObject_HEAD_INIT(NULL, 0) + PyVarObject_HEAD_INIT(NULL, 0) }; PyObject * create_win32_namespace(void) { - Win32Type.tp_name = "_multiprocessing.win32"; - Win32Type.tp_methods = win32_methods; - if (PyType_Ready(&Win32Type) < 0) - return NULL; - Py_INCREF(&Win32Type); - - WIN32_CONSTANT(F_DWORD, ERROR_ALREADY_EXISTS); - WIN32_CONSTANT(F_DWORD, ERROR_PIPE_BUSY); - WIN32_CONSTANT(F_DWORD, ERROR_PIPE_CONNECTED); - WIN32_CONSTANT(F_DWORD, ERROR_SEM_TIMEOUT); - WIN32_CONSTANT(F_DWORD, GENERIC_READ); - WIN32_CONSTANT(F_DWORD, GENERIC_WRITE); - WIN32_CONSTANT(F_DWORD, INFINITE); - WIN32_CONSTANT(F_DWORD, NMPWAIT_WAIT_FOREVER); - WIN32_CONSTANT(F_DWORD, OPEN_EXISTING); - WIN32_CONSTANT(F_DWORD, PIPE_ACCESS_DUPLEX); - WIN32_CONSTANT(F_DWORD, PIPE_ACCESS_INBOUND); - WIN32_CONSTANT(F_DWORD, PIPE_READMODE_MESSAGE); - WIN32_CONSTANT(F_DWORD, PIPE_TYPE_MESSAGE); - WIN32_CONSTANT(F_DWORD, PIPE_UNLIMITED_INSTANCES); - WIN32_CONSTANT(F_DWORD, PIPE_WAIT); - WIN32_CONSTANT(F_DWORD, PROCESS_ALL_ACCESS); - - WIN32_CONSTANT("i", NULL); - - return (PyObject*)&Win32Type; + Win32Type.tp_name = "_multiprocessing.win32"; + Win32Type.tp_methods = win32_methods; + if (PyType_Ready(&Win32Type) < 0) + return NULL; + Py_INCREF(&Win32Type); + + WIN32_CONSTANT(F_DWORD, ERROR_ALREADY_EXISTS); + WIN32_CONSTANT(F_DWORD, ERROR_PIPE_BUSY); + WIN32_CONSTANT(F_DWORD, ERROR_PIPE_CONNECTED); + WIN32_CONSTANT(F_DWORD, ERROR_SEM_TIMEOUT); + WIN32_CONSTANT(F_DWORD, GENERIC_READ); + WIN32_CONSTANT(F_DWORD, GENERIC_WRITE); + WIN32_CONSTANT(F_DWORD, INFINITE); + WIN32_CONSTANT(F_DWORD, NMPWAIT_WAIT_FOREVER); + WIN32_CONSTANT(F_DWORD, OPEN_EXISTING); + WIN32_CONSTANT(F_DWORD, PIPE_ACCESS_DUPLEX); + WIN32_CONSTANT(F_DWORD, PIPE_ACCESS_INBOUND); + WIN32_CONSTANT(F_DWORD, PIPE_READMODE_MESSAGE); + WIN32_CONSTANT(F_DWORD, PIPE_TYPE_MESSAGE); + WIN32_CONSTANT(F_DWORD, PIPE_UNLIMITED_INSTANCES); + WIN32_CONSTANT(F_DWORD, PIPE_WAIT); + WIN32_CONSTANT(F_DWORD, PROCESS_ALL_ACCESS); + + WIN32_CONSTANT("i", NULL); + + return (PyObject*)&Win32Type; } |