- initial import

src/engine/helper/HL_Sync.cpp

@@ -0,0 +1,86 @@
+/* Copyright(C) 2007-2017 VoIPobjects (voipobjects.com)
+ * 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 "HL_Sync.h"
+#include <assert.h>
+#include <atomic>
+
+#ifdef TARGET_OSX
+# include <libkern/OSAtomic.h>
+#endif
+
+#ifdef TARGET_WIN
+# include <Windows.h>
+#endif
+
+void SyncHelper::delay(unsigned int microseconds)
+{
+#ifdef TARGET_WIN
+  ::Sleep(microseconds/1000);
+#endif
+#if defined(TARGET_OSX) || defined(TARGET_LINUX)
+  timespec requested, remaining;
+  requested.tv_sec = microseconds / 1000000;
+  requested.tv_nsec = (microseconds % 1000000) * 1000;
+  remaining.tv_nsec = 0;
+  remaining.tv_sec = 0;
+  nanosleep(&requested, &remaining);
+#endif
+}
+
+long SyncHelper::increment(long *value)
+{
+  assert(value);
+#ifdef TARGET_WIN
+  return ::InterlockedIncrement((LONG*)value);
+#elif TARGET_OSX
+  return OSAtomicIncrement32((int32_t*)value);
+#elif TARGET_LINUX
+  return -1;
+#endif
+}
+
+// ------------------- ThreadHelper -------------------
+void ThreadHelper::setName(const std::string &name)
+{
+#if defined(TARGET_LINUX)
+  pthread_setname_np(pthread_self(), name.c_str());
+#endif
+}
+
+// ------------------- TimeHelper ---------------
+using namespace std::chrono;
+
+static uint64_t TimestampStartPoint = duration_cast<milliseconds>(steady_clock::now().time_since_epoch()).count();
+static time_t TimestampBase = time(nullptr);
+
+uint64_t TimeHelper::getTimestamp()
+{
+  time_point<steady_clock> t = steady_clock::now();
+
+  uint64_t ms = duration_cast< milliseconds >(t.time_since_epoch()).count();
+
+  return ms - TimestampStartPoint + TimestampBase * 1000;
+}
+
+uint64_t TimeHelper::getUptime()
+{
+  time_point<steady_clock> t = steady_clock::now();
+
+  uint64_t ms = duration_cast< milliseconds >(t.time_since_epoch()).count();
+
+  return ms - TimestampStartPoint;
+}
+
+uint32_t TimeHelper::getDelta(uint32_t later, uint32_t earlier)
+{
+  if (later > earlier)
+    return later - earlier;
+
+  if (later < earlier && later < 0x7FFFFFFF && earlier >= 0x7FFFFFFF)
+    return 0xFFFFFFFF - earlier + later;
+
+  return 0;
+}