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ladybird/Userland/Applications/SystemMonitor/ProcessFileDescriptorMapWidget.cpp

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Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
Applications: Use default constructors/destructors https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
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* Copyright (c) 2022, the SerenityOS developers.
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
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*
Everything: Move to SPDX license identifiers in all files. SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
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* SPDX-License-Identifier: BSD-2-Clause
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
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*/
ProcessManager: Add a new per-proces "open files" view showing open FDs This uses the data from /proc/PID/fds with ease now that it's JSON. :^)
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#include "ProcessFileDescriptorMapWidget.h"
LibGUI: Remove leading G from filenames
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#include <LibGUI/BoxLayout.h>
#include <LibGUI/JsonArrayModel.h>
SystemMonitor: Wrap file descriptor and unveiled paths model into a SortingProxyModel
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#include <LibGUI/SortingProxyModel.h>
LibGUI: Remove leading G from filenames
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#include <LibGUI/TableView.h>
ProcessManager: Add a new per-proces "open files" view showing open FDs This uses the data from /proc/PID/fds with ease now that it's JSON. :^)
2019-08-03 08:26:04 +02:00
SystemMonitor: Move process window to GML Extra stuff done in this commit to facilitate the above (if you want to really push my commit count, ask for more atomicisation): - Register a bunch of widgets that are used in the process window. - Allow setting the pid after the fact for the process state widget.
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REGISTER_WIDGET(SystemMonitor, ProcessFileDescriptorMapWidget)
namespace SystemMonitor {
LibGUI: Remove parent parameter to GUI::Widget constructor
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ProcessFileDescriptorMapWidget::ProcessFileDescriptorMapWidget()
ProcessManager: Add a new per-proces "open files" view showing open FDs This uses the data from /proc/PID/fds with ease now that it's JSON. :^)
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{
LibGUI: Use set_layout<LayoutType>() in lots of client code
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set_layout<GUI::VerticalBoxLayout>();
Userland+LibGUI: Add shorthand versions of the Margins constructor This allows for typing [8] instead of [8, 8, 8, 8] to specify the same margin on all edges, for example. The constructors follow CSS' style of specifying margins. The added constructors are: - Margins(int all): Sets the same margin on all edges. - Margins(int vertical, int horizontal): Sets the first argument to top and bottom margins, and the second argument to left and right margins. - Margins(int top, int vertical, int bottom): Sets the first argument to the top margin, the second argument to the left and right margins, and the third argument to the bottom margin.
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layout()->set_margins(4);
LibGUI: Remove parent parameter to GUI::Widget constructor
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m_table_view = add<GUI::TableView>();
ProcessManager: Use a GJsonArrayModel for the process file desciptors
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LibGUI: Put all classes in the GUI namespace and remove the leading G This took me a moment. Welcome to the new world of GUI::Widget! :^)
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Vector<GUI::JsonArrayModel::FieldSpec> pid_fds_fields;
LibDraw: Put all classes in the Gfx namespace I started adding things to a Draw namespace, but it somehow felt really wrong seeing Draw::Rect and Draw::Bitmap, etc. So instead, let's rename the library to LibGfx. :^)
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pid_fds_fields.empend("fd", "FD", Gfx::TextAlignment::CenterRight);
pid_fds_fields.empend("class", "Class", Gfx::TextAlignment::CenterLeft);
pid_fds_fields.empend("offset", "Offset", Gfx::TextAlignment::CenterRight);
pid_fds_fields.empend("absolute_path", "Path", Gfx::TextAlignment::CenterLeft);
pid_fds_fields.empend("Access", Gfx::TextAlignment::CenterLeft, [](auto& object) {
Everywhere: Add sv suffix to strings relying on StringView(char const*) Each of these strings would previously rely on StringView's char const* constructor overload, which would call __builtin_strlen on the string. Since we now have operator ""sv, we can replace these with much simpler versions. This opens the door to being able to remove StringView(char const*). No functional changes.
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return object.get("seekable"sv).to_bool() ? "Seekable" : "Sequential";
ProcessManager: Use a GJsonArrayModel for the process file desciptors
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});
LibDraw: Put all classes in the Gfx namespace I started adding things to a Draw namespace, but it somehow felt really wrong seeing Draw::Rect and Draw::Bitmap, etc. So instead, let's rename the library to LibGfx. :^)
2020-02-06 11:56:38 +01:00
pid_fds_fields.empend("Blocking", Gfx::TextAlignment::CenterLeft, [](auto& object) {
Everywhere: Add sv suffix to strings relying on StringView(char const*) Each of these strings would previously rely on StringView's char const* constructor overload, which would call __builtin_strlen on the string. Since we now have operator ""sv, we can replace these with much simpler versions. This opens the door to being able to remove StringView(char const*). No functional changes.
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return object.get("blocking"sv).to_bool() ? "Blocking" : "Nonblocking";
SystemMonitor: Display whether an fd is cloexec and blocking
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});
LibDraw: Put all classes in the Gfx namespace I started adding things to a Draw namespace, but it somehow felt really wrong seeing Draw::Rect and Draw::Bitmap, etc. So instead, let's rename the library to LibGfx. :^)
2020-02-06 11:56:38 +01:00
pid_fds_fields.empend("On exec", Gfx::TextAlignment::CenterLeft, [](auto& object) {
Everywhere: Add sv suffix to strings relying on StringView(char const*) Each of these strings would previously rely on StringView's char const* constructor overload, which would call __builtin_strlen on the string. Since we now have operator ""sv, we can replace these with much simpler versions. This opens the door to being able to remove StringView(char const*). No functional changes.
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return object.get("cloexec"sv).to_bool() ? "Close" : "Keep";
SystemMonitor: Display whether an fd is cloexec and blocking
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});
LibDraw: Put all classes in the Gfx namespace I started adding things to a Draw namespace, but it somehow felt really wrong seeing Draw::Rect and Draw::Bitmap, etc. So instead, let's rename the library to LibGfx. :^)
2020-02-06 11:56:38 +01:00
pid_fds_fields.empend("Can read", Gfx::TextAlignment::CenterLeft, [](auto& object) {
Everywhere: Add sv suffix to strings relying on StringView(char const*) Each of these strings would previously rely on StringView's char const* constructor overload, which would call __builtin_strlen on the string. Since we now have operator ""sv, we can replace these with much simpler versions. This opens the door to being able to remove StringView(char const*). No functional changes.
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return object.get("can_read"sv).to_bool() ? "Yes" : "No";
Kernel+SystemMonitor: Publish can_read/write state for open files The can_read() and can_write() states for file descriptions are now published in /proc, allowing SystemMonitor to display it.
2019-11-09 22:15:35 +01:00
});
LibDraw: Put all classes in the Gfx namespace I started adding things to a Draw namespace, but it somehow felt really wrong seeing Draw::Rect and Draw::Bitmap, etc. So instead, let's rename the library to LibGfx. :^)
2020-02-06 11:56:38 +01:00
pid_fds_fields.empend("Can write", Gfx::TextAlignment::CenterLeft, [](auto& object) {
Everywhere: Add sv suffix to strings relying on StringView(char const*) Each of these strings would previously rely on StringView's char const* constructor overload, which would call __builtin_strlen on the string. Since we now have operator ""sv, we can replace these with much simpler versions. This opens the door to being able to remove StringView(char const*). No functional changes.
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return object.get("can_write"sv).to_bool() ? "Yes" : "No";
Kernel+SystemMonitor: Publish can_read/write state for open files The can_read() and can_write() states for file descriptions are now published in /proc, allowing SystemMonitor to display it.
2019-11-09 22:15:35 +01:00
});
ProcessManager: Use a GJsonArrayModel for the process file desciptors
2019-08-10 11:07:55 +02:00
SystemMonitor: Wrap file descriptor and unveiled paths model into a SortingProxyModel
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m_model = GUI::JsonArrayModel::create({}, move(pid_fds_fields));
LibGUI+Userland: Make SortingProxyModel::create() return ErrorOr Unfortunately, most of the users are inside constructors, (and two others are inside callback lambdas) so the error can't propagate, but that can be improved later.
2021-12-24 12:12:04 +00:00
m_table_view->set_model(MUST(GUI::SortingProxyModel::create(*m_model)));
ProcessManager: Add a new per-proces "open files" view showing open FDs This uses the data from /proc/PID/fds with ease now that it's JSON. :^)
2019-08-03 08:26:04 +02:00
}
void ProcessFileDescriptorMapWidget::set_pid(pid_t pid)
{
if (m_pid == pid)
return;
m_pid = pid;
AK+Everywhere: Rename String to DeprecatedString We have a new, improved string type coming up in AK (OOM aware, no null state), and while it's going to use UTF-8, the name UTF8String is a mouthful - so let's free up the String name by renaming the existing class. Making the old one have an annoying name will hopefully also help with quick adoption :^)
2022-12-04 18:02:33 +00:00
m_model->set_json_path(DeprecatedString::formatted("/proc/{}/fds", m_pid));
ProcessManager: Add a new per-proces "open files" view showing open FDs This uses the data from /proc/PID/fds with ease now that it's JSON. :^)
2019-08-03 08:26:04 +02:00
}
SystemMonitor: Move process window to GML Extra stuff done in this commit to facilitate the above (if you want to really push my commit count, ask for more atomicisation): - Register a bunch of widgets that are used in the process window. - Allow setting the pid after the fact for the process state widget.
2022-03-24 13:30:52 +01:00
}
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