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From: "Yordan Karadzhov (VMware)" <y.karadz@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org,
	"Yordan Karadzhov (VMware)" <y.karadz@gmail.com>
Subject: [PATCH v8 43/44] kernel-shark: Add VirtBridge and VirtGap classes
Date: Mon,  4 Jan 2021 19:47:23 +0200
Message-ID: <20210104174724.70404-44-y.karadz@gmail.com> (raw)
In-Reply-To: <20210104174724.70404-1-y.karadz@gmail.com>

The two simple plotting classes will be used to visualise the
guest->host data correlations.

Signed-off-by: Yordan Karadzhov (VMware) <y.karadz@gmail.com>
---
 src/KsPlotTools.cpp | 22 +++++++++++++++++++++
 src/KsPlotTools.hpp | 47 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+)

diff --git a/src/KsPlotTools.cpp b/src/KsPlotTools.cpp
index 9f98386..8d38009 100644
--- a/src/KsPlotTools.cpp
+++ b/src/KsPlotTools.cpp
@@ -1460,4 +1460,26 @@ void Graph::draw(float size)
 	}
 }
 
+void VirtGap::_draw(const Color &col, float size) const
+{
+	if (_entryPoint.x() - _exitPoint.x() < 4)
+		return;
+
+	Point p0(_exitPoint.x() + _size, _exitPoint.y());
+	Point p1(_exitPoint.x() + _size, _exitPoint.y() - _height);
+	Point p2(_entryPoint.x() - _size , _entryPoint.y());
+	Point p3(_entryPoint.x() - _size , _entryPoint.y() - _height);
+
+	Rectangle g;
+
+	g.setPoint(0, p0);
+	g.setPoint(1, p1);
+	g.setPoint(2, p2);
+	g.setPoint(3, p3);
+
+	g._color = {255, 255, 255}; // The virt. gap is always white.
+	g.setFill(false);
+	g.draw();
+}
+
 } // KsPlot
diff --git a/src/KsPlotTools.hpp b/src/KsPlotTools.hpp
index 4a7ca0a..b9b93f3 100644
--- a/src/KsPlotTools.hpp
+++ b/src/KsPlotTools.hpp
@@ -578,6 +578,53 @@ private:
 	int	_firstBinOffset();
 };
 
+/**
+ * This class represents the graphical element visualizing how the execution
+ * goes from the host to the guest and back.
+ */
+class VirtBridge : public Polyline {
+public:
+	/** Create a default VirtBridge. */
+	VirtBridge() : Polyline(4) {}
+
+	/* Keep this destructor virtual. */
+	virtual ~VirtBridge() {}
+
+	/** Set the coordinates of the EntryHost point of the VirtBridge. */
+	void setEntryHost(int x, int y) {setPoint(0, x, y);}
+
+	/** Set the coordinates of the EntryGuest point of the VirtBridge. */
+	void setEntryGuest(int x, int y) {setPoint(1, x, y);}
+
+	/** Set the coordinates of the ExitGuest point of the VirtBridge. */
+	void setExitGuest(int x, int y) {setPoint(2, x, y);}
+
+	/** Set the coordinates of the ExitHost point of the VirtBridge. */
+	void setExitHost(int x, int y) {setPoint(3, x, y);}
+};
+
+/**
+ * This class represents the graphical element visualizing the time interval
+ * in the guest during which the execution has been returned to the host.
+ */
+class VirtGap : public Shape {
+public:
+	/** Create a VirtGap with height "h". */
+	VirtGap(int h) :_height(h) {}
+
+	/**  The point where the execution exits the VM. */
+	Point _exitPoint;
+
+	/** The point where the execution enters the VM. */
+	Point _entryPoint;
+
+private:
+	/** The vertical size (height) of the graphical element. */
+	int _height;
+
+	void _draw(const Color &col, float size) const;
+};
+
 }; // KsPlot
 
 #endif  /* _KS_PLOT_TOOLS_H */
-- 
2.25.1


  parent reply index

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-04 17:46 [PATCH v8 00/44] Start KernelShark v2 transformation Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 01/44] kernel-shark: Adopt trace-cmd API changes Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 02/44] kernel-shark: Use libtraceevent and libtracefs Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 03/44] kernel-shark: Add license information Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 04/44] kernel-shark: Change the CMake minimum version required Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 05/44] kernel-shark: Change default libraries install location Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 06/44] kernel-shark: Split the installation in two components Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 07/44] kernel-shark: Update README Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 08/44] kernel-shark: Define build target for JSONC Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 09/44] kernel-shark: Use only signed types in kshark_entry Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 10/44] kernel-shark: Add stream_id to kshark_entry Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 11/44] kernel-shark: Introduce libkshark-hash Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 12/44] kernel-shark: Introduce Data streams Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 13/44] kernel-shark: Rename static methods in libkshark Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 14/44] kernel-shark: Add basic methods for Data streams Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 15/44] kernel-shark: Housekeeping before implementing stream interface Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 16/44] kernel-shark: Add stream interface for trace-cmd data Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 17/44] kernel-shark: Start introducing KernelShark 2.0 Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 18/44] kernel-shark: Start using data streams Yordan Karadzhov (VMware)
2021-01-04 17:46 ` [PATCH v8 19/44] kernel-shark: Remove dead code Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 20/44] kernel-shark: Redesign the plugin interface Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 21/44] kernel-shark: Complete the stream integration Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 22/44] kernel-shark: Provide merging of multiple data streams Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 23/44] kernel-shark: Integrate the stream definitions with data model Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 24/44] kernel-shark: Use only signed types for model defs Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 25/44] kernel-shark: Add ksmodel_get_bin() Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 26/44] kernel-shark: Protect ksmodel_set_in_range_bining() Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 27/44] kernel-shark: Add methods for time calibration Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 28/44] kernel-shark: Integrate streams with libkshark-configio Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 29/44] kernel-shark: Add support for drawing text Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 30/44] kernel-shark: Make GLUT optional dependency Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 31/44] kernel-shark: Add ksplot_draw_polyline() Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 32/44] kernel-shark: Optimize ksplot_draw_polygon() Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 33/44] kernel-shark: Add basic infrastructure for testing Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 34/44] kernel-shark: Add "github Actions" workflow Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 35/44] kernel-shark: Integrate streams with KsPlotTools Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 36/44] kernel-shark: Add getStreamColorTable() Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 37/44] kernel-shark: Redefine the args of KsPlot::getColor() Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 38/44] kernel-shark: Add TextBox class to KsPlot namespace Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 39/44] kernel-shark: Consistent method naming in KsPlotTools Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 40/44] kernel-shark: Make the label part of the graph Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 41/44] kernel-shark: Remove the hard-coded Idle PID Yordan Karadzhov (VMware)
2021-01-04 17:47 ` [PATCH v8 42/44] kernel-shark: Add class Polyline to KsPlot namespace Yordan Karadzhov (VMware)
2021-01-04 17:47 ` Yordan Karadzhov (VMware) [this message]
2021-01-04 17:47 ` [PATCH v8 44/44] kernel-shark: Add double click interface to PlotObject Yordan Karadzhov (VMware)
2021-01-05  0:27 ` [PATCH v8 00/44] Start KernelShark v2 transformation Steven Rostedt

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