1 files changed, 144 insertions, 0 deletions
diff --git a/comphelper/source/misc/traceevent.cxx b/comphelper/source/misc/traceevent.cxx
new file mode 100644
index 000000000..fb07e1caa
--- /dev/null
+++ b/comphelper/source/misc/traceevent.cxx
@@ -0,0 +1,144 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <sal/config.h>
+
+#include <atomic>
+#include <mutex>
+#include <iostream>
+
+#include <comphelper/profilezone.hxx>
+#include <comphelper/sequence.hxx>
+#include <comphelper/traceevent.hxx>
+
+namespace comphelper
+{
+#ifdef DBG_UTIL
+std::atomic<bool> TraceEvent::s_bRecording = (getenv("TRACE_EVENT_RECORDING") != nullptr);
+#else
+std::atomic<bool> TraceEvent::s_bRecording = false;
+#endif
+
+std::size_t TraceEvent::s_nBufferSize = 0;
+void (*TraceEvent::s_pBufferFullCallback)() = nullptr;
+
+int AsyncEvent::s_nIdCounter = 0;
+
+static thread_local int nProfileZoneNesting = 0; // Level of Nested Profile Zones
+
+namespace
+{
+std::vector<OUString> g_aRecording; // recorded data
+std::mutex g_aMutex;
+}
+
+void TraceEvent::addRecording(const OUString& sObject)
+{
+    std::lock_guard aGuard(g_aMutex);
+
+    g_aRecording.emplace_back(sObject);
+
+    if (s_nBufferSize > 0 && g_aRecording.size() >= s_nBufferSize)
+    {
+        if (s_pBufferFullCallback != nullptr)
+            (*s_pBufferFullCallback)();
+    }
+}
+
+void TraceEvent::addInstantEvent(const char* sName, const std::map<OUString, OUString>& args)
+{
+    long long nNow = getNow();
+
+    int nPid = 0;
+    oslProcessInfo aProcessInfo;
+    aProcessInfo.Size = sizeof(oslProcessInfo);
+    if (osl_getProcessInfo(nullptr, osl_Process_IDENTIFIER, &aProcessInfo) == osl_Process_E_None)
+        nPid = aProcessInfo.Ident;
+
+    addRecording("{"
+                 "\"name:\""
+                 + OUString(sName, strlen(sName), RTL_TEXTENCODING_UTF8)
+                 + "\","
+                   "\"ph\":\"i\""
+                 + createArgsString(args) + ",\"ts\":" + OUString::number(nNow)
+                 + ","
+                   "\"pid\":"
+                 + OUString::number(nPid)
+                 + ","
+                   "\"tid\":"
+                 + OUString::number(osl_getThreadIdentifier(nullptr)) + "},");
+}
+
+void TraceEvent::startRecording()
+{
+    std::lock_guard aGuard(g_aMutex);
+    s_bRecording = true;
+}
+
+void TraceEvent::stopRecording() { s_bRecording = false; }
+
+void TraceEvent::setBufferSizeAndCallback(std::size_t bufferSize, void (*bufferFullCallback)())
+{
+    s_nBufferSize = bufferSize;
+    s_pBufferFullCallback = bufferFullCallback;
+}
+
+std::vector<OUString> TraceEvent::getEventVectorAndClear()
+{
+    bool bRecording;
+    std::vector<OUString> aRecording;
+    {
+        std::lock_guard aGuard(g_aMutex);
+        bRecording = s_bRecording;
+        stopRecording();
+        aRecording.swap(g_aRecording);
+    }
+    // reset start time and nesting level
+    if (bRecording)
+        startRecording();
+    return aRecording;
+}
+
+css::uno::Sequence<OUString> TraceEvent::getRecordingAndClear()
+{
+    return comphelper::containerToSequence(getEventVectorAndClear());
+}
+
+void ProfileZone::addRecording()
+{
+    assert(s_bRecording);
+
+    long long nNow = getNow();
+
+    // Generate a single "Complete Event" (type X)
+    TraceEvent::addRecording("{"
+                             "\"name\":\""
+                             + OUString(m_sName, strlen(m_sName), RTL_TEXTENCODING_UTF8)
+                             + "\","
+                               "\"ph\":\"X\","
+                               "\"ts\":"
+                             + OUString::number(m_nCreateTime)
+                             + ","
+                               "\"dur\":"
+                             + OUString::number(nNow - m_nCreateTime) + m_sArgs
+                             + ","
+                               "\"pid\":"
+                             + OUString::number(m_nPid)
+                             + ","
+                               "\"tid\":"
+                             + OUString::number(osl_getThreadIdentifier(nullptr)) + "},");
+}
+
+int ProfileZone::getNestingLevel() { return nProfileZoneNesting; }
+
+void ProfileZone::setNestingLevel(int nNestingLevel) { nProfileZoneNesting = nNestingLevel; }
+
+} // namespace comphelper
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */