webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

2 files changed, 334 insertions, 0 deletions

diff --git a/Source/WebCore/page/linux/ResourceUsageOverlayLinux.cpp b/Source/WebCore/page/linux/ResourceUsageOverlayLinux.cpp
new file mode 100644
index 000000000..cff63e00e
--- /dev/null
+++ b/Source/WebCore/page/linux/ResourceUsageOverlayLinux.cpp
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2017 Igalia S.L.
+ *
+ * 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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "config.h"
+#include "ResourceUsageOverlay.h"
+
+#if ENABLE(RESOURCE_USAGE) && OS(LINUX)
+
+#include "Chrome.h"
+#include "ChromeClient.h"
+#include "CommonVM.h"
+#include "GraphicsContext.h"
+#include "Page.h"
+#include "RenderTheme.h"
+#include "ResourceUsageThread.h"
+#include <runtime/VM.h>
+
+namespace WebCore {
+
+static ResourceUsageData gData;
+
+static String cpuUsageString(float cpuUsage)
+{
+    if (cpuUsage < 0)
+        return ASCIILiteral("<unknown>");
+    return String::format("%.1f%%", cpuUsage);
+}
+
+static String formatByteNumber(size_t number)
+{
+    if (number >= 1024 * 1048576)
+        return String::format("%.3f GB", static_cast<double>(number) / (1024 * 1048576));
+    if (number >= 1048576)
+        return String::format("%.2f MB", static_cast<double>(number) / 1048576);
+    if (number >= 1024)
+        return String::format("%.1f kB", static_cast<double>(number) / 1024);
+    return String::format("%lu", number);
+}
+
+static String gcTimerString(double timerFireDate, double now)
+{
+    if (!timerFireDate)
+        return ASCIILiteral("[not scheduled]");
+    return String::format("%g", timerFireDate - now);
+}
+
+static const float gFontSize = 14;
+
+class ResourceUsageOverlayPainter final : public GraphicsLayerClient {
+public:
+    ResourceUsageOverlayPainter(ResourceUsageOverlay& overlay)
+        : m_overlay(overlay)
+    {
+        FontCascadeDescription fontDescription;
+        RenderTheme::defaultTheme()->systemFont(CSSValueMessageBox, fontDescription);
+        fontDescription.setComputedSize(gFontSize);
+        m_textFont = FontCascade(fontDescription, 0, 0);
+        m_textFont.update(nullptr);
+    }
+
+    ~ResourceUsageOverlayPainter()
+    {
+    }
+
+private:
+    void paintContents(const GraphicsLayer*, GraphicsContext& context, GraphicsLayerPaintingPhase, const FloatRect& clip) override
+    {
+        GraphicsContextStateSaver stateSaver(context);
+        context.fillRect(clip, Color(0.0f, 0.0f, 0.0f, 0.8f));
+        context.setFillColor(Color(0.9f, 0.9f, 0.9f, 1.f));
+
+        FloatPoint position = { 10, 20 };
+        String string =  "CPU: " + cpuUsageString(gData.cpu);
+        context.drawText(m_textFont, TextRun(string), position);
+        position.move(0, gFontSize + 2);
+
+        string = "Memory: " + formatByteNumber(gData.totalDirtySize);
+        context.drawText(m_textFont, TextRun(string), position);
+        position.move(0, gFontSize + 2);
+
+        string = "External: " + formatByteNumber(gData.totalExternalSize);
+        context.drawText(m_textFont, TextRun(string), position);
+        position.move(0, gFontSize + 2);
+
+        string = "GC Heap: " + formatByteNumber(gData.categories[MemoryCategory::GCHeap].dirtySize);
+        context.drawText(m_textFont, TextRun(string), position);
+        position.move(0, gFontSize + 2);
+
+        string = "GC owned: " + formatByteNumber(gData.categories[MemoryCategory::GCOwned].dirtySize);
+        context.drawText(m_textFont, TextRun(string), position);
+        position.move(0, gFontSize + 2);
+
+        double now = WTF::currentTime();
+        string = "Eden GC: " + gcTimerString(gData.timeOfNextEdenCollection, now);
+        context.drawText(m_textFont, TextRun(string), position);
+        position.move(0, gFontSize + 2);
+
+        string = "Full GC: " + gcTimerString(gData.timeOfNextFullCollection, now);
+        context.drawText(m_textFont, TextRun(string), position);
+        position.move(0, gFontSize + 2);
+    }
+
+    void notifyFlushRequired(const GraphicsLayer*) override
+    {
+        m_overlay.overlay().page()->chrome().client().scheduleCompositingLayerFlush();
+    }
+
+    ResourceUsageOverlay& m_overlay;
+    FontCascade m_textFont;
+};
+
+void ResourceUsageOverlay::platformInitialize()
+{
+    m_overlayPainter = std::make_unique<ResourceUsageOverlayPainter>(*this);
+    m_paintLayer = GraphicsLayer::create(overlay().page()->chrome().client().graphicsLayerFactory(), *m_overlayPainter);
+    m_paintLayer->setAnchorPoint(FloatPoint3D());
+    m_paintLayer->setSize({ normalWidth, normalHeight });
+    m_paintLayer->setBackgroundColor(Color(0.0f, 0.0f, 0.0f, 0.8f));
+    m_paintLayer->setDrawsContent(true);
+    overlay().layer().addChild(m_paintLayer.get());
+
+    ResourceUsageThread::addObserver(this, [this] (const ResourceUsageData& data) {
+        gData = data;
+        m_paintLayer->setNeedsDisplay();
+    });
+}
+
+void ResourceUsageOverlay::platformDestroy()
+{
+    ResourceUsageThread::removeObserver(this);
+    if (!m_paintLayer)
+        return;
+
+    m_paintLayer->removeFromParent();
+    m_paintLayer = nullptr;
+    m_overlayPainter = nullptr;
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(RESOURCE_USAGE) && OS(LINUX)
diff --git a/Source/WebCore/page/linux/ResourceUsageThreadLinux.cpp b/Source/WebCore/page/linux/ResourceUsageThreadLinux.cpp
new file mode 100644
index 000000000..1d19497fb
--- /dev/null
+++ b/Source/WebCore/page/linux/ResourceUsageThreadLinux.cpp
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2017 Igalia S.L.
+ *
+ * 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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "config.h"
+#include "ResourceUsageThread.h"
+
+#if ENABLE(RESOURCE_USAGE) && OS(LINUX)
+
+#include "CurrentProcessMemoryStatus.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <heap/GCActivityCallback.h>
+#include <runtime/VM.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+namespace WebCore {
+
+static float cpuPeriod()
+{
+    FILE* file = fopen("/proc/stat", "r");
+    if (!file)
+        return 0;
+
+    static const unsigned statMaxLineLength = 512;
+    char buffer[statMaxLineLength + 1];
+    char* line = fgets(buffer, statMaxLineLength, file);
+    if (!line) {
+        fclose(file);
+        return 0;
+    }
+
+    unsigned long long userTime, niceTime, systemTime, idleTime;
+    unsigned long long ioWait, irq, softIrq, steal, guest, guestnice;
+    ioWait = irq = softIrq = steal = guest = guestnice = 0;
+    sscanf(buffer, "cpu  %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu",
+        &userTime, &niceTime, &systemTime, &idleTime, &ioWait, &irq, &softIrq, &steal, &guest, &guestnice);
+
+    // Keep parsing if we still don't know cpuCount.
+    static unsigned cpuCount = 0;
+    if (!cpuCount) {
+        while ((line = fgets(buffer, statMaxLineLength, file))) {
+            if (strlen(line) > 4 && line[0] == 'c' && line[1] == 'p' && line[2] == 'u')
+                cpuCount++;
+            else
+                break;
+        }
+    }
+    fclose(file);
+
+    if (!cpuCount)
+        return 0;
+
+    static unsigned long long previousTotalTime = 0;
+    unsigned long long totalTime = userTime + niceTime + systemTime + irq + softIrq + idleTime + ioWait + steal;
+    unsigned long long period = totalTime > previousTotalTime ? totalTime - previousTotalTime : 0;
+    previousTotalTime = totalTime;
+    return static_cast<float>(period) / cpuCount;
+}
+
+static float cpuUsage()
+{
+    float period = cpuPeriod();
+    if (!period)
+        return -1;
+
+    int fd = open("/proc/self/stat", O_RDONLY);
+    if (fd < 0)
+        return -1;
+
+    static const ssize_t maxBufferLength = BUFSIZ - 1;
+    char buffer[BUFSIZ];
+    buffer[0] = '\0';
+
+    ssize_t totalBytesRead = 0;
+    while (totalBytesRead < maxBufferLength) {
+        ssize_t bytesRead = read(fd, buffer + totalBytesRead, maxBufferLength - totalBytesRead);
+        if (bytesRead < 0) {
+            if (errno != EINTR) {
+                close(fd);
+                return -1;
+            }
+            continue;
+        }
+
+        if (!bytesRead)
+            break;
+
+        totalBytesRead += bytesRead;
+    }
+    close(fd);
+    buffer[totalBytesRead] = '\0';
+
+    // Skip pid and process name.
+    char* position = strrchr(buffer, ')');
+    if (!position)
+        return -1;
+
+    // Move after state.
+    position += 4;
+
+    // Skip ppid, pgrp, sid, tty_nr, tty_pgrp, flags, min_flt, cmin_flt, maj_flt, cmaj_flt.
+    unsigned tokensToSkip = 10;
+    while (tokensToSkip--) {
+        while (!isASCIISpace(position[0]))
+            position++;
+        position++;
+    }
+
+    static unsigned long long previousUtime = 0;
+    static unsigned long long previousStime = 0;
+    unsigned long long utime = strtoull(position, &position, 10);
+    unsigned long long stime = strtoull(position, &position, 10);
+    float usage = (utime + stime - (previousUtime + previousStime)) / period * 100.0;
+    previousUtime = utime;
+    previousStime = stime;
+
+    return clampTo<float>(usage, 0, 100);
+}
+
+void ResourceUsageThread::platformThreadBody(JSC::VM* vm, ResourceUsageData& data)
+{
+    data.cpu = cpuUsage();
+
+    ProcessMemoryStatus memoryStatus;
+    currentProcessMemoryStatus(memoryStatus);
+    data.totalDirtySize = memoryStatus.resident - memoryStatus.shared;
+
+    size_t currentGCHeapCapacity = vm->heap.blockBytesAllocated();
+    size_t currentGCOwnedExtra = vm->heap.extraMemorySize();
+    size_t currentGCOwnedExternal = vm->heap.externalMemorySize();
+    RELEASE_ASSERT(currentGCOwnedExternal <= currentGCOwnedExtra);
+
+    data.categories[MemoryCategory::GCHeap].dirtySize = currentGCHeapCapacity;
+    data.categories[MemoryCategory::GCOwned].dirtySize = currentGCOwnedExtra - currentGCOwnedExternal;
+    data.categories[MemoryCategory::GCOwned].externalSize = currentGCOwnedExternal;
+
+    data.totalExternalSize = currentGCOwnedExternal;
+
+    data.timeOfNextEdenCollection = vm->heap.edenActivityCallback()->nextFireTime();
+    data.timeOfNextFullCollection = vm->heap.fullActivityCallback()->nextFireTime();
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(RESOURCE_USAGE) && OS(LINUX)