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/*
* This file is part of the PulseView project.
*
* Copyright (C) 2018 Soeren Apel <soeren@apelpie.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "logging.hpp"
#include "globalsettings.hpp"
#include <iostream>
#ifdef ENABLE_DECODE
#include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
#endif
#include <libsigrokcxx/libsigrokcxx.hpp>
#include <QApplication>
using std::cout;
using std::endl;
using std::lock_guard;
namespace pv {
Logging logging;
const int Logging::MIN_BUFFER_SIZE = 10;
const int Logging::MAX_BUFFER_SIZE = 50000;
static sr_log_callback prev_sr_log_cb;
static void *prev_sr_log_cb_data;
#ifdef ENABLE_DECODE
static srd_log_callback prev_srd_log_cb;
static void *prev_srd_log_cb_data;
#endif
Logging::~Logging()
{
qInstallMessageHandler(nullptr);
if (prev_sr_log_cb)
sr_log_callback_set(prev_sr_log_cb, prev_sr_log_cb_data);
prev_sr_log_cb = nullptr;
prev_sr_log_cb_data = nullptr;
#ifdef ENABLE_DECODE
if (prev_srd_log_cb)
srd_log_callback_set(prev_srd_log_cb, prev_srd_log_cb_data);
prev_srd_log_cb = nullptr;
prev_srd_log_cb_data = nullptr;
#endif
GlobalSettings::remove_change_handler(this);
}
void Logging::init()
{
GlobalSettings settings;
buffer_size_ =
settings.value(GlobalSettings::Key_Log_BufferSize).toInt();
buffer_.reserve(buffer_size_);
qInstallMessageHandler(log_pv);
sr_log_callback_get(&prev_sr_log_cb, &prev_sr_log_cb_data);
sr_log_callback_set(log_sr, nullptr);
#ifdef ENABLE_DECODE
srd_log_callback_get(&prev_srd_log_cb, &prev_srd_log_cb_data);
srd_log_callback_set(log_srd, nullptr);
#endif
GlobalSettings::add_change_handler(this);
}
int Logging::get_log_level() const
{
// We assume that libsigrok and libsrd always have the same log level
return sr_log_loglevel_get();
}
void Logging::set_log_level(int level)
{
sr_log_loglevel_set(level);
#ifdef ENABLE_DECODE
srd_log_loglevel_set(level);
#endif
}
QString Logging::get_log() const
{
return buffer_.join("<br />\n");
}
void Logging::log(const QString &text, int source)
{
lock_guard<mutex> log_lock(log_mutex_);
if (buffer_.size() >= buffer_size_)
buffer_.removeFirst();
QString s;
if (text.contains("warning", Qt::CaseInsensitive)) {
s = QString("<font color=\"darkorange\">%1</font>").arg(text);
goto out;
}
if (text.contains("error", Qt::CaseInsensitive)) {
s = QString("<font color=\"darkred\">%1</font>").arg(text);
goto out;
}
switch (source) {
case LogSource_pv:
s = QString("<font color=\"darkMagenta\">pv: %1</font>").arg(text);
break;
case LogSource_sr:
s = QString("<font color=\"darkGreen\">sr: %1</font>").arg(text);
break;
case LogSource_srd:
s = QString("<font color=\"olive\">srd: %1</font>").arg(text);
break;
default:
s = text;
break;
}
out:
buffer_.append(s);
// If we're tearing down the program, sending out notifications to UI
// elements that can no longer function properly is a bad idea
if (!QApplication::closingDown())
logged_text(s);
}
void Logging::log_pv(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
(void)type;
(void)context;
logging.log(msg, LogSource_pv);
cout << msg.toUtf8().data() << endl;
}
int Logging::log_sr(void *cb_data, int loglevel, const char *format, va_list args)
{
va_list args2;
(void)cb_data;
va_copy(args2, args);
if (prev_sr_log_cb)
prev_sr_log_cb(prev_sr_log_cb_data, loglevel, format, args2);
va_end(args2);
char *text = g_strdup_vprintf(format, args);
logging.log(QString::fromUtf8(text), LogSource_sr);
g_free(text);
return SR_OK;
}
#ifdef ENABLE_DECODE
int Logging::log_srd(void *cb_data, int loglevel, const char *format, va_list args)
{
va_list args2;
(void)cb_data;
va_copy(args2, args);
if (prev_srd_log_cb)
prev_srd_log_cb(prev_srd_log_cb_data, loglevel, format, args2);
va_end(args2);
char *text = g_strdup_vprintf(format, args);
QString s = QString::fromUtf8(text);
for (QString& substring : s.split("\n", QString::SkipEmptyParts))
logging.log(substring, LogSource_srd);
g_free(text);
return SR_OK;
}
#endif
void Logging::on_setting_changed(const QString &key, const QVariant &value)
{
if (key == GlobalSettings::Key_Log_BufferSize) {
// Truncate buffer if needed
const int delta = buffer_.size() - value.toInt();
if (delta > 0)
buffer_.erase(buffer_.begin(), buffer_.begin() + delta);
buffer_size_ = value.toInt();
buffer_.reserve(buffer_size_);
}
}
} // namespace pv
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