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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#define BUILD_LIBRARY
#include <qthread.h>
#include <qpluginloader.h>
#include <qfileinfo.h>
#include <qdir.h>
#include <qjsonarray.h>
#include "qctf_p.h"
QT_BEGIN_NAMESPACE
static bool s_initialized = false;
static bool s_triedLoading = false;
static bool s_prevent_recursion = false;
static bool s_shutdown = false;
static QCtfLib* s_plugin = nullptr;
#if QT_CONFIG(library) && defined(QT_SHARED)
#if defined(Q_OS_ANDROID)
static QString findPlugin(const QString &plugin)
{
QString pluginPath = QString::fromUtf8(qgetenv("QT_PLUGIN_PATH"));
QDir dir(pluginPath);
const QStringList files = dir.entryList(QDir::Files);
for (const QString &file : files) {
if (file.contains(plugin))
return QFileInfo(pluginPath + QLatin1Char('/') + file).absoluteFilePath();
}
return {};
}
#endif
static bool loadPlugin(bool &retry)
{
retry = false;
#ifdef Q_OS_WIN
#ifdef QT_DEBUG
QPluginLoader loader(QStringLiteral("tracing/QCtfTracePlugind.dll"));
#else
QPluginLoader loader(QStringLiteral("tracing/QCtfTracePlugin.dll"));
#endif
#elif defined(Q_OS_ANDROID)
QString plugin = findPlugin(QStringLiteral("QCtfTracePlugin"));
if (plugin.isEmpty()) {
retry = true;
return false;
}
QPluginLoader loader(plugin);
#else
QPluginLoader loader(QStringLiteral("tracing/libQCtfTracePlugin.so"));
#endif
if (!loader.isLoaded()) {
if (!loader.load())
return false;
}
s_plugin = qobject_cast<QCtfLib *>(loader.instance());
if (!s_plugin)
return false;
s_plugin->shutdown(&s_shutdown);
return true;
}
#else
#define QCtfPluginIID QStringLiteral("org.qt-project.Qt.QCtfLib")
static bool loadPlugin(bool &retry)
{
retry = false;
const auto &plugins = QPluginLoader::staticPlugins();
for (const auto &plugin : plugins) {
const auto json = plugin.metaData();
const auto IID = json[QStringLiteral("IID")];
if (IID.toString() == QCtfPluginIID) {
s_plugin = qobject_cast<QCtfLib *>(plugin.instance());
if (!s_plugin)
return false;
s_plugin->shutdown(&s_shutdown);
return true;
}
}
return false;
}
#endif
static bool initialize()
{
if (s_shutdown || s_prevent_recursion)
return false;
if (s_initialized || s_triedLoading)
return s_initialized;
s_prevent_recursion = true;
bool retry = false;
if (!loadPlugin(retry)) {
if (!retry) {
s_triedLoading = true;
s_initialized = false;
}
} else {
bool enabled = s_plugin->sessionEnabled();
if (!enabled) {
s_triedLoading = true;
s_initialized = false;
} else {
s_initialized = true;
}
}
s_prevent_recursion = false;
return s_initialized;
}
bool _tracepoint_enabled(const QCtfTracePointEvent &point)
{
if (!initialize())
return false;
return s_plugin ? s_plugin->tracepointEnabled(point) : false;
}
void _do_tracepoint(const QCtfTracePointEvent &point, const QByteArray &arr)
{
if (!initialize())
return;
if (s_plugin)
s_plugin->doTracepoint(point, arr);
}
QCtfTracePointPrivate *_initialize_tracepoint(const QCtfTracePointEvent &point)
{
if (!initialize())
return nullptr;
return s_plugin ? s_plugin->initializeTracepoint(point) : nullptr;
}
QT_END_NAMESPACE
#include "moc_qctf_p.cpp"
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