On Mon, 8 Oct 2018 18:16:29 +0300
Yordan Karadzhov <y.karadz@xxxxxxxxx> wrote:
> From: Yordan Karadzhov <ykaradzhov@xxxxxxxxxx>
>
> This patch introduces a basic example, showing how to use KsUtils and
> KsWidgetsLib.
>
> Signed-off-by: Yordan Karadzhov (VMware) <y.karadz@xxxxxxxxx>
> ---
> kernel-shark-qt/examples/CMakeLists.txt | 4 +
> kernel-shark-qt/examples/widgetdemo.cpp | 159 ++++++++++++++++++++++++
> 2 files changed, 163 insertions(+)
> create mode 100644 kernel-shark-qt/examples/widgetdemo.cpp
>
> diff --git a/kernel-shark-qt/examples/CMakeLists.txt b/kernel-shark-qt/examples/CMakeLists.txt
> index 0c83293..e16216e 100644
> --- a/kernel-shark-qt/examples/CMakeLists.txt
> +++ b/kernel-shark-qt/examples/CMakeLists.txt
> @@ -19,3 +19,7 @@ target_link_libraries(confio kshark)
> message(STATUS "dataplot")
> add_executable(dplot dataplot.cpp)
> target_link_libraries(dplot kshark-plot)
> +
> +message(STATUS "widgetdemo")
> +add_executable(widgetdemo widgetdemo.cpp)
> +target_link_libraries(widgetdemo kshark-gui)
> diff --git a/kernel-shark-qt/examples/widgetdemo.cpp b/kernel-shark-qt/examples/widgetdemo.cpp
> new file mode 100644
> index 0000000..c9ce86b
> --- /dev/null
> +++ b/kernel-shark-qt/examples/widgetdemo.cpp
> @@ -0,0 +1,159 @@
> +// SPDX-License-Identifier: GPL-2.0
> +
> +/*
> + * Copyright (C) 2017 VMware Inc, Yordan Karadzhov <y.karadz@xxxxxxxxx>
> + */
> +
> +// C
> +#include <sys/stat.h>
> +#include <getopt.h>
> +#include <unistd.h>
> +
> +// C++
> +#include <iostream>
> +
> +// Qt
> +#include <QtWidgets>
> +
> +// KernelShark
> +#include "KsUtils.hpp"
> +#include "KsWidgetsLib.hpp"
> +
> +#define default_input_file (char*)"trace.dat"
> +
> +static char *input_file = nullptr;
> +
> +using namespace std;
> +
> +void usage(const char *prog)
> +{
> + cout << "Usage: " << prog << endl
> + << " -h Display this help message\n"
> + << " -v Display version and exit\n"
> + << " -i input_file, default is " << default_input_file << endl
> + << " -p register plugin, use plugin name, absolute or relative path\n"
> + << " -u unregister plugin, use plugin name or absolute path\n";
Add a exit here, because when I ran this with -h, it still runs the
code.
-- Steve
> +}
> +
> +struct TaskPrint : public QObject
> +{
> + tep_handle *_pevent;
> +
> + void print(QVector<int> pids)
> + {
> + for (auto const &pid: pids)
> + cout << "task: "
> + << tep_data_comm_from_pid(_pevent, pid)
> + << " pid: " << pid << endl;
> + }
> +};
> +
> +int main(int argc, char **argv)
> +{
> + kshark_context *kshark_ctx(nullptr);
> + QApplication a(argc, argv);
> + KsPluginManager plugins;
> + KsDataStore data;
> + size_t nRows(0);
> + int c;
> +
> + if (!kshark_instance(&kshark_ctx))
> + return 1;
> +
> + while ((c = getopt(argc, argv, "hvi:p:u:")) != -1) {
> + switch(c) {
> + case 'v':
> + printf("kshark-gui %s\n", KS_VERSION_STRING);
> + return 0;
> +
> + case 'i':
> + input_file = optarg;
> + break;
> +
> + case 'p':
> + plugins.registerPlugin(QString(optarg));
> + break;
> +
> + case 'u':
> + plugins.unregisterPlugin(QString(optarg));
> + break;
> +
> + case 'h':
> + default:
> + usage(argv[0]);
> + break;
> + }
> + }
> +
> + if (!input_file) {
> + struct stat st;
> + if (stat(default_input_file, &st) == 0)
> + input_file = default_input_file;
> + }
> +
> + if (input_file) {
> + data.loadDataFile(input_file);
> + nRows = data.size();
> + } else {
> + cerr << "No input file is provided.\n";
> + }
> +
> + cout << nRows << " entries loaded\n";
> +
> + auto lamPrintPl = [&] ()
> + {
> + kshark_plugin_list *pl;
> + for (pl = kshark_ctx->plugins; pl; pl = pl->next)
> + cout << pl->file << endl;
> + };
> +
> + cout << "\n\n";
> + lamPrintPl();
> + sleep(1);
> +
> + QVector<bool> registeredPlugins;
> + QStringList pluginsList;
> +
> + pluginsList << plugins._ksPluginList
> + << plugins._userPluginList;
> +
> + registeredPlugins << plugins._registeredKsPlugins
> + << plugins._registeredUserPlugins;
> +
> + KsCheckBoxWidget *pluginCBD
> + = new KsPluginCheckBoxWidget(pluginsList);
> +
> + pluginCBD->set(registeredPlugins);
> +
> + KsCheckBoxDialog *dialog1 = new KsCheckBoxDialog(pluginCBD);
> + QObject::connect(dialog1, &KsCheckBoxDialog::apply,
> + &plugins, &KsPluginManager::updatePlugins);
> +
> + dialog1->show();
> + a.exec();
> +
> + cout << "\n\nYou selected\n";
> + lamPrintPl();
> + sleep(1);
> +
> + if (!nRows)
> + return 1;
> +
> + KsCheckBoxWidget *tasks_cbd =
> + new KsTasksCheckBoxWidget(data.pevent(), true);
> +
> + tasks_cbd->setDefault(false);
> +
> + TaskPrint p;
> + p._pevent = data.pevent();
> +
> + KsCheckBoxDialog *dialog2 = new KsCheckBoxDialog(tasks_cbd);
> + QObject::connect(dialog2, &KsCheckBoxDialog::apply,
> + &p, &TaskPrint::print);
> +
> + cout << "\n\nYou selected\n";
> + dialog2->show();
> + a.exec();
> +
> + return 0;
> +}
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