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93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/*
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* This file is part of the libsigrokdecode project.
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*
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* Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "libsigrokdecode-internal.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */
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#include "libsigrokdecode.h"
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#include <stdarg.h>
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#include <glib.h>
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#include <frameobject.h> /* Python header not pulled in by default. */
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/** @private */
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SRD_PRIV void srd_exception_catch(const char *format, char **error, ...)
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{
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PyObject *etype, *evalue, *etb, *py_str;
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PyTracebackObject *py_tb;
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GString *msg;
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va_list args;
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char *ename, *str, *tracestr;
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if (!PyErr_Occurred())
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/* Nothing is wrong. */
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return;
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PyErr_Fetch(&etype, &evalue, &etb);
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PyErr_NormalizeException(&etype, &evalue, &etb);
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if (!(py_str = PyObject_Str(evalue))) {
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/* Shouldn't happen. */
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srd_dbg("Failed to convert exception value to string.");
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return;
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}
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/* Send the exception error message(s) to srd_err(). */
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if (evalue)
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ename = (char *)Py_TYPE(evalue)->tp_name;
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else
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/* Can be NULL. */
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ename = "(unknown exception)";
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msg = g_string_sized_new(128);
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g_string_append(msg, ename);
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g_string_append(msg, ": ");
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va_start(args, error);
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g_string_append_vprintf(msg, format, args);
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va_end(args);
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py_str_as_str(py_str, &str);
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g_string_append(msg, str);
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Py_DecRef(py_str);
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srd_err("%s", msg->str);
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/* Send a more precise error location to srd_dbg(), if we have it. */
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if (etb && etb != Py_None) {
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tracestr = NULL;
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py_tb = (PyTracebackObject *)etb;
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py_str = PyUnicode_FromFormat("%U:%d in %U",
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py_tb->tb_frame->f_code->co_filename,
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py_tb->tb_frame->f_lineno,
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py_tb->tb_frame->f_code->co_name);
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py_str_as_str(py_str, &tracestr);
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Py_DecRef(py_str);
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g_string_printf(msg, "%s in %s: %s", ename, tracestr, str);
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srd_dbg("%s", msg->str);
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g_free(tracestr);
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}
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if (error)
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*error = g_strdup(str);
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g_free(str);
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g_string_free(msg, TRUE);
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Py_XDECREF(etype);
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Py_XDECREF(evalue);
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Py_XDECREF(etb);
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/* Just in case. */
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PyErr_Clear();
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}
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