add missing files to git

CppTimer.cpp

@@ -0,0 +1,97 @@
+#include "CppTimer.h"
+#include <fcntl.h>
+
+/**
+ * GNU GENERAL PUBLIC LICENSE
+ * Version 3, 29 June 2007
+ *
+ * (C) 2020, Bernd Porr <mail@bernporr.me.uk>
+ * 
+ * This is inspired by the timer_create man page.
+ **/
+
+CppTimer::CppTimer() {
+	// We create a static handler catches the signal SIG
+	sa.sa_flags = SA_SIGINFO;
+	sa.sa_sigaction = handler;
+	sigemptyset(&sa.sa_mask);
+	if (sigaction(SIG, &sa, NULL) == -1)
+		throw("Could not create signal handler");
+	
+	if(pipe(pipeFd) < 0)
+		throw("Could not create pipe");
+	
+	// Create the timer
+	sev.sigev_notify = SIGEV_SIGNAL;
+	sev.sigev_signo = SIG;
+	// Cruical is that the signal carries the pointer to this class instance here
+	// because the handler just handles anything that comes in!
+	sev.sigev_value.sival_ptr = this;
+	// create the timer
+	if (timer_create(CLOCKID, &sev, &timerid) == -1)
+		throw("Could not create timer");
+};
+
+void CppTimer::start(long nanosecs,std::function<void()> callbackIn, int type) {
+	switch(type){
+		case(PERIODIC):
+			//starts after specified period of nanoseconds
+			its.it_value.tv_sec = nanosecs / 1000000000;
+			its.it_value.tv_nsec = nanosecs % 1000000000;
+			its.it_interval.tv_sec = nanosecs / 1000000000;
+			its.it_interval.tv_nsec = nanosecs % 1000000000;
+			break;
+		case(ONESHOT):
+			//fires once after specified period of nanoseconds
+			its.it_value.tv_sec = nanosecs / 1000000000;
+			its.it_value.tv_nsec = nanosecs % 1000000000;
+			its.it_interval.tv_sec = 0;
+			its.it_interval.tv_nsec = 0;
+			break;
+	}
+	callback = callbackIn;
+	if (timer_settime(timerid, 0, &its, NULL) == -1)
+		throw("Could not start timer");
+	discardPipe();
+	running = true;
+}
+
+void CppTimer::discardPipe() {
+	char buf;
+	fcntl(pipeFd[0], F_SETFL, O_NONBLOCK);
+	while(read(pipeFd[0], &buf, 1) > 0);
+	fcntl(pipeFd[0], F_SETFL, 0);
+}
+
+void CppTimer::block()
+{
+	if(running)
+	{
+		char buf;
+		read(pipeFd[0], &buf, 1);
+	}
+}
+
+void CppTimer::stop() {
+	// disarm
+	struct itimerspec itsnew;
+	itsnew.it_value.tv_sec = 0;
+	itsnew.it_value.tv_nsec = 0;
+	itsnew.it_interval.tv_sec = 0;
+	itsnew.it_interval.tv_nsec = 0;
+	timer_settime(timerid, 0, &itsnew, &its);
+	running = false;
+}
+
+bool CppTimer::isRunning()
+{
+	return running;
+}
+
+CppTimer::~CppTimer() {
+	stop();
+	// delete the timer
+	timer_delete(timerid);
+	// default action for signal handling
+	signal(SIG, SIG_IGN);
+}

CppTimer.h

@@ -0,0 +1,85 @@
+#ifndef __CPP_TIMER_H_
+#define __CPP_TIMER_H_
+
+/**
+ * GNU GENERAL PUBLIC LICENSE
+ * Version 3, 29 June 2007
+ *
+ * (C) 2020, Bernd Porr <mail@bernporr.me.uk>
+ * 
+ * This is inspired by the timer_create man page.
+ **/
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <signal.h>
+#include <time.h>
+#include <functional>
+#include <atomic>
+
+#define CLOCKID CLOCK_MONOTONIC
+#define SIG SIGRTMIN
+
+/**
+ * Timer class which repeatedly fires. It's wrapper around the
+ * POSIX per-process timer.
+ **/
+class CppTimer {
+
+public:
+	static constexpr int PERIODIC = 0;
+	static constexpr int ONESHOT  = 1;
+	static constexpr long MS_TO_NS  = 1000000;
+	/**
+	 * Creates an instance of the timer and connects the
+	 * signal handler to the timer.
+	 **/
+	CppTimer();
+
+	/**
+	 * Starts the timer. The timer fires first after
+	 * the specified time in nanoseconds and then at
+	 * that interval in PERIODIC mode. In ONESHOT mode
+	 * the timer fires once after the specified time in
+	 * nanoseconds.
+	 **/
+	virtual void start(long nanosecs, std::function<void()> callbackIn, int type = PERIODIC); 
+
+	/**
+	* Stops the timer by disarming it. It can be re-started
+	* with start().
+	**/
+	virtual void stop();
+
+	/**
+	 * Destructor disarms the timer, deletes it and
+	 * disconnect the signal handler.
+	 **/
+	virtual ~CppTimer();
+	
+	bool isRunning();
+	
+	void block();
+
+private:
+	timer_t timerid = 0;
+	struct sigevent sev;
+	struct sigaction sa;
+	struct itimerspec its;
+	int pipeFd[2];
+	std::atomic<bool> running = false;
+	std::function<void()> callback;
+	void discardPipe();
+		
+	static void handler(int sig, siginfo_t *si, void *uc ) {
+		CppTimer *timer = reinterpret_cast<CppTimer *> (si->si_value.sival_ptr);
+		timer->callback();
+		char buf = '\n'; 
+		write(timer->pipeFd[1], &buf, 1);
+		timer->running = false;
+	}
+};
+
+
+#endif

debian/changelog

@@ -1,8 +1,8 @@
 sigstoped (1.0.5) unstable; urgency=medium
-  Configureable timout for applications to close their windows.
+    Configureable timout for applications to close their windows.
-  Fix 5sec stall when switching from an application to be stopped to an application that was stopped before.
+    Fix 5sec stall when switching from an application to be stopped to an application that was stopped before.
-  Make Xinstance thread safe
+    Make Xinstance thread safe
- -- Uvos <carl@uvos.xyz>  Wed, 01 Jul Jun 2020 09:47:00 +0100
+-- Uvos <carl@uvos.xyz>  Mon, 16 Jun 2020 09:47:00 +0100
 
 sigstoped (1.0.4) unstable; urgency=medium
   Fix memory leak in XInstance::getTopLevelWindows()