4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
6 // Stefan Bund <g0dil@berlios.de>
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 2 of the License, or
11 // (at your option) any later version.
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the
20 // Free Software Foundation, Inc.,
21 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 \brief Scheduler unit tests */
26 //#include "Scheduler.test.hh"
27 //#include "Scheduler.test.ih"
30 #include <sys/types.h>
34 #include <sys/socket.h>
39 #include <boost/bind.hpp>
41 #include "Scheduler.hh"
43 #include "../Utils/auto_unit_test.hh"
44 #include <boost/test/test_tools.hpp>
47 ///////////////////////////////cc.p////////////////////////////////////////
51 char const * SOCK_PATH = "/tmp/sched_test.sock";
53 void error(char const * fn, char const * proc="")
55 std::cerr << "\n" << proc << fn << ": " << strerror(errno) << std::endl;
58 void fail(char const * fn)
66 int sock = socket(PF_UNIX,SOCK_STREAM,0);
67 if (sock<0) fail("socket");
68 struct sockaddr_un sun;
69 memset(&sun,0,sizeof(sun));
70 sun.sun_family = AF_UNIX;
71 strcpy(sun.sun_path,SOCK_PATH);
72 if (bind(sock,(struct sockaddr*)&sun,sizeof(sun))<0) fail("bind");
73 if (listen(sock,1)<0) fail("listen");
74 int conn = accept(sock,0,0);
75 if (conn < 0) fail("accept");
77 ///////////////////////////////////////////////////////////////////////////
79 if (write(conn,"READ",4)<0) fail("write");
81 int size = read(conn,buffer,1024);
82 if (size<0) fail("read");
85 if (strcmp(buffer,"WRITE")==0) {
86 if (write(conn,"OK",2)<0) fail("write");
88 if (write(conn,"FAIL",4)<0) fail("write");
90 if (write(conn,"FAIL",4)<0) fail("write");
92 ///////////////////////////////////////////////////////////////////////////
103 signal(SIGCHLD, SIG_IGN);
111 signal(SIGCHLD, SIG_DFL);
113 sleep(1); // Wait for the server socket to be opened
117 bool stop_server(int pid)
119 sleep(1); // Wait for the server to terminate
120 if (kill(pid,SIGTERM)<0) {
125 if (waitpid(pid,&status,0)<0) {
130 if (WIFSIGNALED(status)) {
131 std::cerr << "\nserver terminated with signal " << WTERMSIG(status) << std::endl;
134 if (WEXITSTATUS(status)!=0) {
135 std::cerr << "\nserver terminated with exit status " << WEXITSTATUS(status) << std::endl;
145 void callback(int fd, int ev)
148 switch (event & senf::scheduler::FdEvent::EV_ALL) {
149 case senf::scheduler::FdEvent::EV_READ:
150 size = recv(fd,buffer,1024,0);
152 case senf::scheduler::FdEvent::EV_PRIO:
153 size = recv(fd,buffer,1024,MSG_OOB);
155 case senf::scheduler::FdEvent::EV_WRITE:
156 size = write(fd,buffer,size);
159 senf::scheduler::terminate();
162 bool timeoutCalled = false;
165 timeoutCalled = true;
166 senf::scheduler::terminate();
171 HandleWrapper(int fd,std::string const & tag) : fd_(fd), tag_(tag) {}
176 int retrieve_filehandle(HandleWrapper const & handle)
181 void handleCallback(HandleWrapper const & handle, int event)
183 if (handle.tag_ != "TheTag")
185 callback(handle.fd_,event);
188 bool is_close(senf::ClockService::clock_type a, senf::ClockService::clock_type b)
190 return (a<b ? b-a : a-b) < senf::ClockService::milliseconds(100);
193 senf::ClockService::clock_type sigtime (0);
195 void sigusr(siginfo_t const &)
197 sigtime = senf::ClockService::now();
198 senf::scheduler::terminate();
201 void delay(unsigned long milliseconds)
204 ts.tv_sec = milliseconds / 1000;
205 ts.tv_nsec = (milliseconds % 1000) * 1000000;
206 while (nanosleep(&ts,&ts) < 0 && errno == EINTR) ;
209 void blockingHandler()
212 senf::scheduler::terminate();
215 unsigned eventCount (0);
217 void eventeventhandler()
225 int pid = start_server();
228 int sock = socket(PF_UNIX,SOCK_STREAM,0);
231 BOOST_FAIL("socket");
233 struct sockaddr_un sun;
234 memset(&sun,0,sizeof(sun));
235 sun.sun_family = AF_UNIX;
236 strcpy(sun.sun_path,SOCK_PATH);
238 if (connect(sock,(struct sockaddr*)&sun,sizeof(sun))<0) {
240 BOOST_FAIL("connect");
243 ///////////////////////////////////////////////////////////////////////////
245 senf::scheduler::EventHook evev ("eventCounter", eventeventhandler, true,
246 senf::scheduler::EventHook::PRE);
249 senf::scheduler::FdEvent fde1 ("testFdEvent", boost::bind(&callback, sock, _1),
250 sock, senf::scheduler::FdEvent::EV_READ);
251 event = senf::scheduler::FdEvent::EV_NONE;
252 SENF_CHECK_NO_THROW( senf::scheduler::process() );
253 BOOST_CHECK_EQUAL( event, senf::scheduler::FdEvent::EV_READ );
254 BOOST_REQUIRE_EQUAL( size, 4 );
256 BOOST_CHECK_EQUAL( buffer, "READ" );
258 HandleWrapper handle(sock,"TheTag");
259 senf::scheduler::FdEvent fde2 ("testFdEvent", boost::bind(&handleCallback,handle,_1),
260 handle, senf::scheduler::FdEvent::EV_WRITE);
261 strcpy(buffer,"WRITE");
263 event = senf::scheduler::FdEvent::EV_NONE;
264 SENF_CHECK_NO_THROW( senf::scheduler::process() );
265 BOOST_CHECK_EQUAL( event, senf::scheduler::FdEvent::EV_WRITE );
267 SENF_CHECK_NO_THROW( fde2.disable() );
268 event = senf::scheduler::FdEvent::EV_NONE;
270 SENF_CHECK_NO_THROW( senf::scheduler::process() );
271 BOOST_CHECK_EQUAL( event, senf::scheduler::FdEvent::EV_READ|senf::scheduler::FdEvent::EV_HUP );
272 BOOST_REQUIRE_EQUAL( size, 2 );
274 BOOST_CHECK_EQUAL( buffer, "OK" );
278 senf::scheduler::TimerEvent timer1 ("testTimer1", &timeout,
279 senf::ClockService::now()+senf::ClockService::milliseconds(200));
280 senf::scheduler::TimerEvent timer2 ("testTimer2", &timeout,
281 senf::ClockService::now()+senf::ClockService::milliseconds(400));
283 event = senf::scheduler::FdEvent::EV_NONE;
284 senf::ClockService::clock_type t (senf::ClockService::now());
285 SENF_CHECK_NO_THROW( senf::scheduler::process() );
286 BOOST_CHECK_PREDICATE( is_close, (senf::ClockService::now()-t) (senf::ClockService::milliseconds(200)) );
287 BOOST_CHECK( timeoutCalled );
288 BOOST_CHECK( ! timer1.enabled() );
289 BOOST_CHECK_EQUAL( event, senf::scheduler::FdEvent::EV_NONE );
290 BOOST_CHECK_PREDICATE( is_close, (senf::ClockService::now()) (senf::scheduler::eventTime()) );
291 timeoutCalled = false;
292 SENF_CHECK_NO_THROW( senf::scheduler::process() );
293 BOOST_CHECK_PREDICATE( is_close, (senf::ClockService::now()-t) (senf::ClockService::milliseconds(400)) );
294 BOOST_CHECK( timeoutCalled );
295 BOOST_CHECK_EQUAL( event, senf::scheduler::FdEvent::EV_NONE );
296 BOOST_CHECK( ! timer2.enabled() );
298 BOOST_MESSAGE( "A 'Scheduler task hanging' error is expected to be signaled here." );
299 SENF_CHECK_NO_THROW( timer1.action(&blockingHandler) );
300 SENF_CHECK_NO_THROW( timer1.timeout(senf::ClockService::now()) );
301 SENF_CHECK_NO_THROW( senf::scheduler::process() );
302 BOOST_CHECK_EQUAL( senf::scheduler::watchdogEvents(), 1u );
306 senf::scheduler::TimerEvent timer ("testWatchdog", &timeout,
307 senf::ClockService::now()+senf::ClockService::milliseconds(400));
308 senf::scheduler::SignalEvent sig (SIGUSR1, &sigusr);
310 senf::ClockService::clock_type t = senf::ClockService::now();
311 ::kill(::getpid(), SIGUSR1);
313 SENF_CHECK_NO_THROW( senf::scheduler::process() );
314 BOOST_CHECK_PREDICATE( is_close, (senf::ClockService::now()) (t+senf::ClockService::milliseconds(200)) );
315 BOOST_CHECK_PREDICATE( is_close, (sigtime) (t+senf::ClockService::milliseconds(200)) );
316 SENF_CHECK_NO_THROW( senf::scheduler::process() );
319 BOOST_CHECK( eventCount >= 8u );
322 ///////////////////////////////////////////////////////////////////////////
326 BOOST_CHECK (stop_server(pid));
329 BOOST_AUTO_UNIT_TEST(testSchedulerPollTimers)
331 BOOST_CHECK( ! senf::scheduler::usingHiresTimers() );
335 BOOST_AUTO_UNIT_TEST(testSchedulerHiresTimers)
337 if (senf::scheduler::haveScalableHiresTimers())
338 BOOST_MESSAGE( "Using timerfd() hires timers" );
340 BOOST_MESSAGE( "Using POSIX hires timers");
341 SENF_CHECK_NO_THROW( senf::scheduler::hiresTimers() );
342 BOOST_CHECK( senf::scheduler::usingHiresTimers() );
344 SENF_CHECK_NO_THROW( senf::scheduler::loresTimers() );
345 BOOST_CHECK( ! senf::scheduler::usingHiresTimers() );
348 BOOST_AUTO_UNIT_TEST(testSchedulerPOSIXTimers)
350 if (senf::scheduler::haveScalableHiresTimers()) {
351 SENF_CHECK_NO_THROW( senf::scheduler::detail::TimerDispatcher::instance().timerSource(
352 std::auto_ptr<senf::scheduler::detail::TimerSource>(
353 new senf::scheduler::detail::POSIXTimerSource())) );
355 senf::scheduler::loresTimers();
363 senf::scheduler::BlockSignals signalBlocker;
364 signalBlocker.block();
365 signalBlocker.unblock();
366 BOOST_CHECK( ! signalBlocker.blocked() );
367 signalBlocker.unblock();
368 signalBlocker.block();
369 BOOST_CHECK( signalBlocker.blocked() );
370 ::kill(::getpid(), SIGUSR1);
376 BOOST_AUTO_UNIT_TEST(blockSignals)
378 senf::scheduler::TimerEvent signaler ("sigme", &sigme, senf::ClockService::now());
379 senf::scheduler::TimerEvent timer (
380 "testWatchdog", &timeout, senf::ClockService::now()+senf::ClockService::milliseconds(400));
381 senf::scheduler::SignalEvent sig (SIGUSR1, &sigusr);
383 senf::ClockService::clock_type t = senf::ClockService::now();
384 SENF_CHECK_NO_THROW( senf::scheduler::process() );
386 BOOST_CHECK_PREDICATE( is_close,
387 (senf::ClockService::now())
388 (t+senf::ClockService::milliseconds(200)) );
389 BOOST_CHECK_PREDICATE( is_close, (sigtime) (t+senf::ClockService::milliseconds(200)) );
391 SENF_CHECK_NO_THROW( senf::scheduler::process() );
394 ///////////////////////////////cc.e////////////////////////////////////////
401 // c-file-style: "senf"
402 // indent-tabs-mode: nil
403 // ispell-local-dictionary: "american"
404 // compile-command: "scons -u test"
405 // comment-column: 40