X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Fcross.h;fp=src%2Flib%2Fcross.h;h=1c77545033fdb0c7e2ee17db2a297b9e8100659f;hp=822b36631d604343a94c5b5a03f48b75d8aa31cf;hb=9d075e8e4d9751eee153c0f00fb541a4217f116b;hpb=2ca921e378cd32ca44c389008a60dd08dd58f6e0

diff --git a/src/lib/cross.h b/src/lib/cross.h
index 822b36631..1c7754503 100644
--- a/src/lib/cross.h
+++ b/src/lib/cross.h
@@ -17,7 +17,13 @@
 
 */
 
+#ifndef DCPOMATIC_CROSS_H
+#define DCPOMATIC_CROSS_H
+
 #include <boost/filesystem.hpp>
+#ifdef DCPOMATIC_OSX
+#include <IOKit/pwr_mgt/IOPMLib.h>
+#endif
 
 #ifdef DCPOMATIC_WINDOWS
 #define WEXITSTATUS(w) (w)
@@ -35,4 +41,23 @@ extern boost::filesystem::path app_contents ();
 #endif
 extern FILE * fopen_boost (boost::filesystem::path, std::string);
 extern int dcpomatic_fseek (FILE *, int64_t, int);
-void kick ();
+
+/** A class which tries to keep the computer awake on various operating systems.
+ *  Create a Waker to prevent sleep, and call ::nudge every so often (every minute or so).
+ *  Destroy the Waker to allow sleep again.
+ */
+class Waker
+{
+public:
+	Waker ();
+	~Waker ();
+
+	void nudge ();
+
+private:
+#ifdef DCPOMATIC_OSX
+	IOPMAssertionID _assertion_id;
+#endif
+};
+
+#endif