inspector: stop being a module
Moving the inspector into libgtk lets use reuse internals without having to add public API for everything or inventing awkward private call conventions. https://bugzilla.gnome.org/show_bug.cgi?id=730095
This commit is contained in:
Matthias Clasen
237
gtk/inspector/python-hooks.c
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237
gtk/inspector/python-hooks.c
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/*
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* Copyright (c) 2008-2009 Christian Hammond
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* Copyright (c) 2008-2009 David Trowbridge
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <dlfcn.h>
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#include <signal.h>
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#ifdef ENABLE_PYTHON
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# include <Python.h>
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# include <pygobject.h>
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#endif
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#include "python-hooks.h"
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static gboolean python_enabled = FALSE;
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#ifdef ENABLE_PYTHON
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static GString *captured_stdout = NULL;
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static GString *captured_stderr = NULL;
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static PyObject *
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capture_stdout(PyObject *self, PyObject *args)
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{
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char *str = NULL;
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if (!PyArg_ParseTuple(args, "s", &str))
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return NULL;
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g_string_append(captured_stdout, str);
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *
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capture_stderr(PyObject *self, PyObject *args)
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{
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char *str = NULL;
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if (!PyArg_ParseTuple(args, "s", &str))
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return NULL;
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g_string_append(captured_stderr, str);
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *
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wrap_gobj(PyObject *self, PyObject *args)
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{
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void *addr;
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GObject *obj;
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if (!PyArg_ParseTuple(args, "l", &addr))
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return NULL;
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if (!G_IS_OBJECT(addr))
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return NULL; // XXX
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obj = G_OBJECT(addr);
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if (!obj)
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return NULL; // XXX
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return pygobject_new(obj);
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}
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static PyMethodDef gtk_inspector_python_methods[] = {
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{"capture_stdout", capture_stdout, METH_VARARGS, "Captures stdout"},
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{"capture_stderr", capture_stderr, METH_VARARGS, "Captures stderr"},
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{"gobj", wrap_gobj, METH_VARARGS, "Wraps a C GObject"},
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{NULL, NULL, 0, NULL}
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};
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static gboolean
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is_blacklisted(void)
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{
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const char *prgname = g_get_prgname();
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return (!strcmp(prgname, "gimp"));
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}
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#endif // ENABLE_PYTHON
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void
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gtk_inspector_python_init(void)
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{
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#ifdef ENABLE_PYTHON
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int res;
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struct sigaction old_sigint;
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if (is_blacklisted())
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return;
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/* This prevents errors such as "undefined symbol: PyExc_ImportError" */
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if (!dlopen(PYTHON_SHARED_LIB, RTLD_NOW | RTLD_GLOBAL))
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{
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g_error("%s\n", dlerror());
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return;
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}
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captured_stdout = g_string_new("");
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captured_stderr = g_string_new("");
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/* Back up and later restore SIGINT so Python doesn't steal it from us. */
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res = sigaction(SIGINT, NULL, &old_sigint);
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if (!Py_IsInitialized())
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Py_Initialize();
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res = sigaction(SIGINT, &old_sigint, NULL);
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Py_InitModule("gtk_inspector", gtk_inspector_python_methods);
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PyRun_SimpleString(
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"import gtk_inspector\n"
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"import sys\n"
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"\n"
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"class StdoutCatcher:\n"
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" def write(self, str):\n"
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" gtk_inspector.capture_stdout(str)\n"
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"\n"
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"class StderrCatcher:\n"
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" def write(self, str):\n"
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" gtk_inspector.capture_stderr(str)\n"
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"\n"
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);
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if (!pygobject_init(-1, -1, -1))
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{
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fprintf(stderr, "Error initializing pygobject support.\n");
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PyErr_Print();
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return;
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}
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char *argv[] = { "", NULL };
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PySys_SetArgv(0, argv);
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if (!PyImport_ImportModule("gi._gobject"))
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{
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PyErr_SetString(PyExc_ImportError, "could not import gi.gobject");
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return;
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}
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if (!PyImport_ImportModule("gi.repository"))
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{
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PyErr_SetString(PyExc_ImportError, "could not import gi.repository");
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return;
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}
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if (!PyImport_ImportModule("gi.repository.Gtk"))
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{
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PyErr_SetString(PyExc_ImportError, "could not import gtk");
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return;
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}
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python_enabled = TRUE;
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#endif // ENABLE_PYTHON
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}
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void
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gtk_inspector_python_run(const char *command,
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GtkInspectorPythonLogger stdout_logger,
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GtkInspectorPythonLogger stderr_logger,
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gpointer user_data)
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{
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#ifdef ENABLE_PYTHON
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PyGILState_STATE gstate;
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PyObject *module;
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PyObject *dict;
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PyObject *obj;
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gstate = PyGILState_Ensure();
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module = PyImport_AddModule("__main__");
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dict = PyModule_GetDict(module);
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PyRun_SimpleString("old_stdout = sys.stdout\n"
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"old_stderr = sys.stderr\n"
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"sys.stdout = StdoutCatcher()\n"
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"sys.stderr = StderrCatcher()\n");
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obj = PyRun_String(command, Py_single_input, dict, dict);
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PyRun_SimpleString("sys.stdout = old_stdout\n"
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"sys.stderr = old_stderr\n");
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if (stdout_logger != NULL)
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stdout_logger(captured_stdout->str, user_data);
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if (stderr_logger != NULL)
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stderr_logger(captured_stderr->str, user_data);
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// Print any returned object
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if (obj != NULL && obj != Py_None) {
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PyObject *repr = PyObject_Repr(obj);
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if (repr != NULL) {
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char *string = PyString_AsString(repr);
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stdout_logger(string, user_data);
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stdout_logger("\n", user_data);
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}
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Py_XDECREF(repr);
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}
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Py_XDECREF(obj);
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PyGILState_Release(gstate);
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g_string_erase(captured_stdout, 0, -1);
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g_string_erase(captured_stderr, 0, -1);
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#endif // ENABLE_PYTHON
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}
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gboolean
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gtk_inspector_python_is_enabled(void)
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{
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return python_enabled;
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}
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// vim: set et sw=4 ts=4:
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