mirror of git://sigrok.org/pulseview
221 lines
5.1 KiB
C++
221 lines
5.1 KiB
C++
/*
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* This file is part of the PulseView project.
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*
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* Copyright (C) 2018 Soeren Apel <soeren@apelpie.net>
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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 2 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 "logging.hpp"
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#include "globalsettings.hpp"
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#include <iostream>
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#ifdef ENABLE_DECODE
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#include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
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#endif
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#include <libsigrokcxx/libsigrokcxx.hpp>
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#include <QApplication>
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using std::cout;
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using std::endl;
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using std::lock_guard;
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namespace pv {
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Logging logging;
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const int Logging::MIN_BUFFER_SIZE = 10;
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const int Logging::MAX_BUFFER_SIZE = 50000;
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static sr_log_callback prev_sr_log_cb;
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static void *prev_sr_log_cb_data;
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#ifdef ENABLE_DECODE
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static srd_log_callback prev_srd_log_cb;
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static void *prev_srd_log_cb_data;
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#endif
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Logging::~Logging()
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{
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qInstallMessageHandler(nullptr);
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if (prev_sr_log_cb)
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sr_log_callback_set(prev_sr_log_cb, prev_sr_log_cb_data);
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prev_sr_log_cb = nullptr;
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prev_sr_log_cb_data = nullptr;
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#ifdef ENABLE_DECODE
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if (prev_srd_log_cb)
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srd_log_callback_set(prev_srd_log_cb, prev_srd_log_cb_data);
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prev_srd_log_cb = nullptr;
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prev_srd_log_cb_data = nullptr;
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#endif
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GlobalSettings::remove_change_handler(this);
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}
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void Logging::init()
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{
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GlobalSettings settings;
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buffer_size_ =
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settings.value(GlobalSettings::Key_Log_BufferSize).toInt();
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buffer_.reserve(buffer_size_);
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qInstallMessageHandler(log_pv);
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sr_log_callback_get(&prev_sr_log_cb, &prev_sr_log_cb_data);
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sr_log_callback_set(log_sr, nullptr);
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#ifdef ENABLE_DECODE
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srd_log_callback_get(&prev_srd_log_cb, &prev_srd_log_cb_data);
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srd_log_callback_set(log_srd, nullptr);
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#endif
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GlobalSettings::add_change_handler(this);
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}
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int Logging::get_log_level() const
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{
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// We assume that libsigrok and libsrd always have the same log level
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return sr_log_loglevel_get();
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}
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void Logging::set_log_level(int level)
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{
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sr_log_loglevel_set(level);
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#ifdef ENABLE_DECODE
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srd_log_loglevel_set(level);
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#endif
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}
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QString Logging::get_log() const
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{
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return buffer_.join("<br />\n");
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}
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void Logging::log(const QString &text, int source)
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{
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lock_guard<mutex> log_lock(log_mutex_);
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if (buffer_.size() >= buffer_size_)
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buffer_.removeFirst();
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QString s;
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if (text.contains("warning", Qt::CaseInsensitive)) {
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s = QString("<font color=\"darkorange\">%1</font>").arg(text);
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goto out;
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}
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if (text.contains("error", Qt::CaseInsensitive)) {
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s = QString("<font color=\"darkred\">%1</font>").arg(text);
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goto out;
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}
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switch (source) {
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case LogSource_pv:
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s = QString("<font color=\"darkMagenta\">pv: %1</font>").arg(text);
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break;
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case LogSource_sr:
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s = QString("<font color=\"darkGreen\">sr: %1</font>").arg(text);
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break;
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case LogSource_srd:
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s = QString("<font color=\"olive\">srd: %1</font>").arg(text);
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break;
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default:
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s = text;
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break;
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}
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out:
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buffer_.append(s);
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// If we're tearing down the program, sending out notifications to UI
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// elements that can no longer function properly is a bad idea
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if (!QApplication::closingDown())
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logged_text(s);
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}
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void Logging::log_pv(QtMsgType type, const QMessageLogContext &context, const QString &msg)
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{
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(void)type;
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(void)context;
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logging.log(msg, LogSource_pv);
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cout << msg.toUtf8().data() << endl;
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}
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int Logging::log_sr(void *cb_data, int loglevel, const char *format, va_list args)
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{
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va_list args2;
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(void)cb_data;
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va_copy(args2, args);
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if (prev_sr_log_cb)
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prev_sr_log_cb(prev_sr_log_cb_data, loglevel, format, args2);
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va_end(args2);
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char *text = g_strdup_vprintf(format, args);
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logging.log(QString::fromUtf8(text), LogSource_sr);
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g_free(text);
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return SR_OK;
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}
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#ifdef ENABLE_DECODE
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int Logging::log_srd(void *cb_data, int loglevel, const char *format, va_list args)
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{
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va_list args2;
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(void)cb_data;
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va_copy(args2, args);
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if (prev_srd_log_cb)
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prev_srd_log_cb(prev_srd_log_cb_data, loglevel, format, args2);
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va_end(args2);
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char *text = g_strdup_vprintf(format, args);
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QString s = QString::fromUtf8(text);
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#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
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for (QString& substring : s.split("\n", Qt::SkipEmptyParts))
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logging.log(substring, LogSource_srd);
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#else
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for (QString& substring : s.split("\n", QString::SkipEmptyParts))
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logging.log(substring, LogSource_srd);
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#endif
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g_free(text);
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return SR_OK;
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}
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#endif
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void Logging::on_setting_changed(const QString &key, const QVariant &value)
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{
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if (key == GlobalSettings::Key_Log_BufferSize) {
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// Truncate buffer if needed
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const int delta = buffer_.size() - value.toInt();
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if (delta > 0)
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buffer_.erase(buffer_.begin(), buffer_.begin() + delta);
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buffer_size_ = value.toInt();
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buffer_.reserve(buffer_size_);
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}
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}
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} // namespace pv
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