+
+int
+dcpomatic_fseek (FILE* stream, int64_t offset, int whence)
+{
+#ifdef DCPOMATIC_WINDOWS
+ return _fseeki64 (stream, offset, whence);
+#else
+ return fseek (stream, offset, whence);
+#endif
+}
+
+void
+Waker::nudge ()
+{
+#ifdef DCPOMATIC_WINDOWS
+ SetThreadExecutionState (ES_SYSTEM_REQUIRED);
+#endif
+}
+
+Waker::Waker ()
+{
+#ifdef DCPOMATIC_OSX
+ /* We should use this */
+ // IOPMAssertionCreateWithName (kIOPMAssertionTypeNoIdleSleep, kIOPMAssertionLevelOn, CFSTR ("Encoding DCP"), &_assertion_id);
+ /* but it's not available on 10.5, so we use this */
+ IOPMAssertionCreate (kIOPMAssertionTypeNoIdleSleep, kIOPMAssertionLevelOn, &_assertion_id);
+#endif
+}
+
+Waker::~Waker ()
+{
+#ifdef DCPOMATIC_OSX
+ IOPMAssertionRelease (_assertion_id);
+#endif
+}