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|
/* -*- Mode: C; c-basic-offset: 4 -*-
* pygobject - Python bindings for GObject
* Copyright (C) 2008 Johan Dahlin
*
* ginputstream.override: module overrides for GInputStream
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
%%
headers
#define BUFSIZE 8192
%%
override g_input_stream_read kwargs
static PyObject *
_wrap_g_input_stream_read(PyGObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "count", "cancellable", NULL };
PyGObject *pycancellable = NULL;
PyObject *v;
GCancellable *cancellable;
long count = -1;
GError *error = NULL;
size_t bytesread, buffersize, chunksize;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"|lO:InputStream.read",
kwlist, &count,
&pycancellable))
return NULL;
buffersize = (count < 0 ? BUFSIZE : count);
if (!pygio_check_cancellable(pycancellable, &cancellable))
return NULL;
v = PyString_FromStringAndSize((char *)NULL, buffersize);
if (v == NULL)
return NULL;
bytesread = 0;
for (;;)
{
pyg_begin_allow_threads;
errno = 0;
chunksize = g_input_stream_read(G_INPUT_STREAM(self->obj),
PyString_AS_STRING((PyStringObject *)v) + bytesread,
buffersize - bytesread, cancellable,
&error);
pyg_end_allow_threads;
if (pyg_error_check(&error)) {
Py_DECREF(v);
return NULL;
}
if (chunksize == 0) {
/* End of file. */
break;
}
bytesread += chunksize;
if (bytesread < buffersize) {
/* g_input_stream_read() decided to not read full buffer. We
* then return early too, even if 'count' is less than 0.
*/
break;
}
if (count < 0) {
buffersize += BUFSIZE;
if (_PyString_Resize(&v, buffersize) < 0)
return NULL;
}
else {
/* Got what was requested. */
break;
}
}
if (bytesread != buffersize)
_PyString_Resize(&v, bytesread);
return v;
}
%%
override g_input_stream_read_all kwargs
static PyObject *
_wrap_g_input_stream_read_all(PyGObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "count", "cancellable", NULL };
PyGObject *pycancellable = NULL;
PyObject *v;
GCancellable *cancellable;
long count = -1;
GError *error = NULL;
size_t bytesread, buffersize, chunksize;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"|lO:InputStream.read",
kwlist, &count,
&pycancellable))
return NULL;
buffersize = (count < 0 ? BUFSIZE : count);
if (!pygio_check_cancellable(pycancellable, &cancellable))
return NULL;
v = PyString_FromStringAndSize((char *)NULL, buffersize);
if (v == NULL)
return NULL;
bytesread = 0;
for (;;)
{
pyg_begin_allow_threads;
errno = 0;
g_input_stream_read_all(G_INPUT_STREAM(self->obj),
PyString_AS_STRING((PyStringObject *)v) + bytesread,
buffersize - bytesread,
&chunksize,
cancellable, &error);
pyg_end_allow_threads;
if (pyg_error_check(&error)) {
Py_DECREF(v);
return NULL;
}
bytesread += chunksize;
if (bytesread < buffersize || chunksize == 0) {
/* End of file. */
break;
}
if (count < 0) {
buffersize += BUFSIZE;
if (_PyString_Resize(&v, buffersize) < 0)
return NULL;
}
else {
/* Got what was requested. */
break;
}
}
if (bytesread != buffersize)
_PyString_Resize(&v, bytesread);
return v;
}
%%
override g_input_stream_read_async kwargs
static PyObject *
_wrap_g_input_stream_read_async(PyGObject *self,
PyObject *args,
PyObject *kwargs)
{
static char *kwlist[] = { "count", "callback", "io_priority",
"cancellable", "user_data", NULL };
long count = -1;
int io_priority = G_PRIORITY_DEFAULT;
PyGObject *pycancellable = NULL;
GCancellable *cancellable;
PyGIONotify *notify;
notify = pygio_notify_new();
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"lO|iOO:InputStream.read_async",
kwlist,
&count,
¬ify->callback,
&io_priority,
&pycancellable,
¬ify->data))
goto error;
if (!pygio_notify_callback_is_valid(notify))
goto error;
if (!pygio_check_cancellable(pycancellable, &cancellable))
goto error;
if (!pygio_notify_allocate_buffer(notify, count))
goto error;
pygio_notify_reference_callback(notify);
pygio_notify_attach_to_result(notify);
g_input_stream_read_async(G_INPUT_STREAM(self->obj),
notify->buffer,
notify->buffer_size,
io_priority,
cancellable,
(GAsyncReadyCallback) async_result_callback_marshal,
notify);
Py_INCREF(Py_None);
return Py_None;
error:
pygio_notify_free(notify);
return NULL;
}
%%
override g_input_stream_read_finish kwargs
static PyObject *
_wrap_g_input_stream_read_finish(PyGObject *self,
PyObject *args,
PyObject *kwargs)
{
static char *kwlist[] = { "result", NULL };
PyGObject *result;
GError *error = NULL;
Py_ssize_t bytesread;
PyGIONotify *notify;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"O!:gio.InputStream.read_finish",
kwlist, &PyGAsyncResult_Type, &result))
return NULL;
bytesread = g_input_stream_read_finish(G_INPUT_STREAM(self->obj),
G_ASYNC_RESULT(result->obj), &error);
if (pyg_error_check(&error))
return NULL;
if (bytesread == 0)
return PyString_FromString("");
notify = pygio_notify_get_attached(result);
return PyString_FromStringAndSize(notify->buffer, bytesread);
}
%%
override g_input_stream_close_async kwargs
static PyObject *
_wrap_g_input_stream_close_async(PyGObject *self,
PyObject *args,
PyObject *kwargs)
{
static char *kwlist[] = { "callback", "io_priority", "cancellable",
"user_data", NULL };
int io_priority = G_PRIORITY_DEFAULT;
PyGObject *pycancellable = NULL;
GCancellable *cancellable;
PyGIONotify *notify;
notify = pygio_notify_new();
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"O|iOO:InputStream.close_async",
kwlist,
¬ify->callback,
&io_priority,
&pycancellable,
¬ify->data))
goto error;
if (!pygio_notify_callback_is_valid(notify))
goto error;
if (!pygio_check_cancellable(pycancellable, &cancellable))
goto error;
pygio_notify_reference_callback(notify);
g_input_stream_close_async(G_INPUT_STREAM(self->obj),
io_priority,
cancellable,
(GAsyncReadyCallback)async_result_callback_marshal,
notify);
Py_INCREF(Py_None);
return Py_None;
error:
pygio_notify_free(notify);
return NULL;
}
%%
override g_input_stream_skip_async kwargs
static PyObject *
_wrap_g_input_stream_skip_async(PyGObject *self,
PyObject *args,
PyObject *kwargs)
{
static char *kwlist[] = { "count", "callback", "io_priority",
"cancellable", "user_data", NULL };
long count = -1;
int io_priority = G_PRIORITY_DEFAULT;
PyGObject *pycancellable = NULL;
GCancellable *cancellable;
PyGIONotify *notify;
notify = pygio_notify_new();
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"lO|iOO:InputStream.skip_async",
kwlist,
&count,
¬ify->callback,
&io_priority,
&pycancellable,
¬ify->data))
goto error;
if (!pygio_notify_callback_is_valid(notify))
goto error;
if (!pygio_check_cancellable(pycancellable, &cancellable))
goto error;
pygio_notify_reference_callback(notify);
g_input_stream_skip_async(G_INPUT_STREAM(self->obj),
count,
io_priority,
cancellable,
(GAsyncReadyCallback) async_result_callback_marshal,
notify);
Py_INCREF(Py_None);
return Py_None;
error:
pygio_notify_free(notify);
return NULL;
}
|
