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author | Simon McVittie <smcv@collabora.com> | 2017-11-05 13:08:09 +0000 |
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committer | Simon McVittie <smcv@collabora.com> | 2017-11-05 13:56:09 +0000 |
commit | 71a613348477336df175a45dd46f035def495115 (patch) | |
tree | b81fa4ea44d30341eac6741648f31cfe186a2b68 /dbus_bindings/mainloop.c | |
parent | b4d2cded0f7584e9c9429790c841e926acd8a082 (diff) | |
download | dbus-python-71a613348477336df175a45dd46f035def495115.tar.gz |
Rename source directories for C code to silence an ImportWarning
Python warns that it is not importing these directories because they
contain no __init__.py.
Signed-off-by: Simon McVittie <smcv@collabora.com>
Diffstat (limited to 'dbus_bindings/mainloop.c')
-rw-r--r-- | dbus_bindings/mainloop.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/dbus_bindings/mainloop.c b/dbus_bindings/mainloop.c new file mode 100644 index 0000000..59d1e99 --- /dev/null +++ b/dbus_bindings/mainloop.c @@ -0,0 +1,207 @@ +/* Implementation of main-loop integration for dbus-python. + * + * Copyright (C) 2006 Collabora Ltd. <http://www.collabora.co.uk/> + * Copyright (C) 2008 Huang Peng <phuang@redhat.com> + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include "dbus_bindings-internal.h" + +/* Native mainloop wrapper ========================================= */ + +PyDoc_STRVAR(NativeMainLoop_tp_doc, +"Object representing D-Bus main loop integration done in native code.\n" +"Cannot be instantiated directly.\n" +); + +static PyTypeObject NativeMainLoop_Type; + +DEFINE_CHECK(NativeMainLoop) + +typedef struct { + PyObject_HEAD + /* Called with the GIL held, should set a Python exception on error */ + dbus_bool_t (*set_up_connection_cb)(DBusConnection *, void *); + dbus_bool_t (*set_up_server_cb)(DBusServer *, void *); + /* Called in a destructor. Must not touch the exception state (use + * PyErr_Fetch and PyErr_Restore if necessary). */ + void (*free_cb)(void *); + void *data; +} NativeMainLoop; + +static void NativeMainLoop_tp_dealloc(NativeMainLoop *self) +{ + if (self->data && self->free_cb) { + (self->free_cb)(self->data); + } + PyObject_Del((PyObject *)self); +} + +static PyTypeObject NativeMainLoop_Type = { + PyVarObject_HEAD_INIT(DEFERRED_ADDRESS(&PyType_Type), 0) + "dbus.mainloop.NativeMainLoop", + sizeof(NativeMainLoop), + 0, + (destructor)NativeMainLoop_tp_dealloc, /* tp_dealloc */ + 0, /* 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 */ + Py_TPFLAGS_DEFAULT, /* tp_flags */ + NativeMainLoop_tp_doc, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + 0, /* tp_methods */ + 0, /* tp_members */ + 0, /* 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 */ + /* deliberately not callable! */ + 0, /* tp_new */ +}; + +/* Internal C API for Connection, Bus, Server ======================= */ + +dbus_bool_t +dbus_py_check_mainloop_sanity(PyObject *mainloop) +{ + if (NativeMainLoop_Check(mainloop)) { + return TRUE; + } + PyErr_SetString(PyExc_TypeError, + "A dbus.mainloop.NativeMainLoop instance is required"); + return FALSE; +} + +dbus_bool_t +dbus_py_set_up_connection(PyObject *conn, PyObject *mainloop) +{ + if (NativeMainLoop_Check(mainloop)) { + /* Native mainloops are allowed to do arbitrary strange things */ + NativeMainLoop *nml = (NativeMainLoop *)mainloop; + DBusConnection *dbc = DBusPyConnection_BorrowDBusConnection(conn); + + if (!dbc) { + return FALSE; + } + return (nml->set_up_connection_cb)(dbc, nml->data); + } + PyErr_SetString(PyExc_TypeError, + "A dbus.mainloop.NativeMainLoop instance is required"); + return FALSE; +} + +dbus_bool_t +dbus_py_set_up_server(PyObject *server, PyObject *mainloop) +{ + if (NativeMainLoop_Check(mainloop)) { + /* Native mainloops are allowed to do arbitrary strange things */ + NativeMainLoop *nml = (NativeMainLoop *)mainloop; + DBusServer *dbs = DBusPyServer_BorrowDBusServer(server); + + if (!dbs) { + return FALSE; + } + return (nml->set_up_server_cb)(dbs, nml->data); + } + PyErr_SetString(PyExc_TypeError, + "A dbus.mainloop.NativeMainLoop instance is required"); + return FALSE; +} + +/* C API ============================================================ */ + +PyObject * +DBusPyNativeMainLoop_New4(dbus_bool_t (*conn_cb)(DBusConnection *, void *), + dbus_bool_t (*server_cb)(DBusServer *, void *), + void (*free_cb)(void *), + void *data) +{ + NativeMainLoop *self = PyObject_New(NativeMainLoop, &NativeMainLoop_Type); + if (self) { + self->data = data; + self->free_cb = free_cb; + self->set_up_connection_cb = conn_cb; + self->set_up_server_cb = server_cb; + } + return (PyObject *)self; +} + +/* Null mainloop implementation ===================================== */ + +static dbus_bool_t +noop_main_loop_cb(void *conn_or_server UNUSED, void *data UNUSED) +{ + return TRUE; +} + +#define noop_conn_cb ((dbus_bool_t (*)(DBusConnection *, void *))(noop_main_loop_cb)) +#define noop_server_cb ((dbus_bool_t (*)(DBusServer *, void *))(noop_main_loop_cb)) + +/* Initialization =================================================== */ + +dbus_bool_t +dbus_py_init_mainloop(void) +{ + if (PyType_Ready (&NativeMainLoop_Type) < 0) return 0; + + return 1; +} + +dbus_bool_t +dbus_py_insert_mainloop_types(PyObject *this_module) +{ + PyObject *null_main_loop = DBusPyNativeMainLoop_New4(noop_conn_cb, + noop_server_cb, + NULL, + NULL); + if (!null_main_loop) return 0; + + /* PyModule_AddObject steals a ref */ + Py_INCREF (&NativeMainLoop_Type); + if (PyModule_AddObject (this_module, "NativeMainLoop", + (PyObject *)&NativeMainLoop_Type) < 0) return 0; + if (PyModule_AddObject (this_module, "NULL_MAIN_LOOP", + null_main_loop) < 0) return 0; + return 1; +} + +/* vim:set ft=c cino< sw=4 sts=4 et: */ |