Profiler: If run without arguments, let user select process from a list

We now show a list of running processes that the user can choose from. After choosing one, we start profiling it and show a timer with a stop button that the user has to press to stop profiling.
2025-10-31 08:32:43 +00:00 · 2020-07-01 20:49:51 +02:00 · 2020-07-01 20:49:51 +02:00 · 8d52e200ee
commit 8d52e200ee
parent c6193af269
4 changed files with 295 additions and 5 deletions
--- a/DevTools/Profiler/RunningProcessesModel.cpp
+++ b/DevTools/Profiler/RunningProcessesModel.cpp
@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "RunningProcessesModel.h"
+#include <AK/SharedBuffer.h>
+#include <LibCore/ProcessStatisticsReader.h>
+
+namespace Profiler {
+
+NonnullRefPtr<RunningProcessesModel> RunningProcessesModel::create()
+{
+    return adopt(*new RunningProcessesModel);
+}
+
+RunningProcessesModel::RunningProcessesModel()
+{
+}
+
+RunningProcessesModel::~RunningProcessesModel()
+{
+}
+
+void RunningProcessesModel::update()
+{
+    m_processes.clear();
+
+    Core::ProcessStatisticsReader reader;
+    auto processes = reader.get_all();
+
+    for (auto& it : processes) {
+        Process process;
+        process.pid = it.value.pid;
+        process.uid = it.value.uid;
+        if (it.value.icon_id != -1) {
+            if (auto icon_buffer = SharedBuffer::create_from_shbuf_id(it.value.icon_id)) {
+                process.icon = Gfx::Bitmap::create_with_shared_buffer(Gfx::BitmapFormat::RGBA32, *icon_buffer, { 16, 16 });
+            }
+        }
+        process.name = it.value.name;
+
+        m_processes.append(move(process));
+    }
+
+    did_update();
+}
+
+int RunningProcessesModel::row_count(const GUI::ModelIndex&) const
+{
+    return m_processes.size();
+}
+
+int RunningProcessesModel::column_count(const GUI::ModelIndex&) const
+{
+    return Column::__Count;
+}
+
+String RunningProcessesModel::column_name(int column_index) const
+{
+    switch (column_index) {
+    case Column::Icon:
+        return {};
+    case Column::PID:
+        return "PID";
+    case Column::UID:
+        return "UID";
+    case Column::Name:
+        return "Name";
+    }
+    ASSERT_NOT_REACHED();
+}
+
+GUI::Variant RunningProcessesModel::data(const GUI::ModelIndex& index, Role role) const
+{
+    auto& process = m_processes[index.row()];
+
+    if (role == Role::Custom) {
+        return process.pid;
+    }
+
+    if (role == Role::Display) {
+        switch (index.column()) {
+        case Column::Icon:
+            if (!process.icon)
+                return GUI::Icon();
+            return GUI::Icon(*process.icon);
+        case Column::PID:
+            return process.pid;
+        case Column::UID:
+            return process.uid;
+        case Column::Name:
+            return process.name;
+        }
+        ASSERT_NOT_REACHED();
+    }
+
+    return {};
+}
+
+}