1 files changed, 46 insertions, 0 deletions
diff --git a/libmail/runlater.H b/libmail/runlater.H
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index 0000000..995ac02
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+++ b/libmail/runlater.H
@@ -0,0 +1,46 @@
+/*
+** Copyright 2002, Double Precision Inc.
+**
+** See COPYING for distribution information.
+*/
+#ifndef libmail_runlater_H
+#define libmail_runlater_H
+
+#include "libmail_config.h"
+#include "objectmonitor.H"
+
+#include <queue>
+
+/*
+** Local mail drivers are immediate - they implement the request and invoke
+** the callback function without delay.  Some requests iterate over an entire
+** message set (such as mail::copyMessages).  Each callback function
+** iterates to the next message.  With large message sets the stack could
+** grow quite big.  The solution is the mail::runLater interface.  After
+** calling RunLater(), the caller MUST immediately terminate.  The stack
+** will unwind back to mail::account::process(), which then invokes the
+** checkRunLater() method.
+*/
+
+LIBMAIL_START
+
+class runLater;
+
+class runLater : public mail::obj {
+public:
+	runLater();
+	~runLater();
+
+	static std::queue<mail::ptr<runLater> > runningLater;
+
+	void RunLater();
+
+	virtual void RunningLater()=0;
+
+	static void checkRunLater(int &timeout);
+};
+
+LIBMAIL_END
+
+#endif
+