2 //********************************************************************
3 // Copyright (C) 2002-2005, International Business Machines
4 // Corporation and others. All Rights Reserved.
5 //********************************************************************
14 #include "unicode/utypes.h"
15 #include "unicode/uclean.h"
17 #include "threadtest.h"
20 //------------------------------------------------------------------------------
22 // Factory functions for creating different test types.
24 //------------------------------------------------------------------------------
25 extern AbstractThreadTest *createStringTest();
26 extern AbstractThreadTest *createConvertTest();
30 //------------------------------------------------------------------------------
32 // Windows specific code for starting threads
34 //------------------------------------------------------------------------------
42 typedef void (*ThreadFunc)(void *);
44 class ThreadFuncs // This class isolates OS dependent threading
45 { // functions from the rest of ThreadTest program.
47 static void Sleep(int millis) {::Sleep(millis);};
48 static void startThread(ThreadFunc, void *param);
49 static unsigned long getCurrentMillis();
50 static void yield() {::Sleep(0);};
53 void ThreadFuncs::startThread(ThreadFunc func, void *param)
56 x = _beginthread(func, 0x10000, param);
59 fprintf(stderr, "Error starting thread. Errno = %d\n", errno);
64 unsigned long ThreadFuncs::getCurrentMillis()
66 return (unsigned long)::GetTickCount();
72 // #elif defined (POSIX)
75 //------------------------------------------------------------------------------
77 // UNIX specific code for starting threads
79 //------------------------------------------------------------------------------
84 #include <sys/timeb.h>
90 typedef void (*ThreadFunc)(void *);
91 typedef void *(*pthreadfunc)(void *);
93 class ThreadFuncs // This class isolates OS dependent threading
94 { // functions from the rest of ThreadTest program.
96 static void Sleep(int millis);
97 static void startThread(ThreadFunc, void *param);
98 static unsigned long getCurrentMillis();
99 static void yield() {sched_yield();};
102 void ThreadFuncs::Sleep(int millis)
104 int seconds = millis/1000;
105 if (seconds <= 0) seconds = 1;
110 void ThreadFuncs::startThread(ThreadFunc func, void *param)
116 #if defined(_HP_UX) && defined(XML_USE_DCE)
117 x = pthread_create( &tId, pthread_attr_default, (pthreadfunc)func, param);
120 pthread_attr_init(&attr);
121 x = pthread_create( &tId, &attr, (pthreadfunc)func, param);
125 fprintf(stderr, "Error starting thread. Errno = %d\n", errno);
130 unsigned long ThreadFuncs::getCurrentMillis() {
133 return (unsigned long)(aTime.time*1000 + aTime.millitm);
139 // #error This platform is not supported
144 //------------------------------------------------------------------------------
146 // struct runInfo Holds the info extracted from the command line and data
147 // that is shared by all threads.
148 // There is only one of these, and it is static.
149 // During the test, the threads will access this info without
150 // any synchronization.
152 //------------------------------------------------------------------------------
153 const int MAXINFILES = 25;
161 AbstractThreadTest *fTest;
164 int32_t runningThreads;
168 //------------------------------------------------------------------------------
170 // struct threadInfo Holds information specific to an individual thread.
171 // One of these is set up for each thread in the test.
172 // The main program monitors the threads by looking
173 // at the status stored in these structs.
175 //------------------------------------------------------------------------------
178 bool fHeartBeat; // Set true by the thread each time it finishes
180 unsigned int fCycles; // Number of cycles completed.
181 int fThreadNum; // Identifying number for this thread.
191 //------------------------------------------------------------------------------
195 //------------------------------------------------------------------------------
197 ThreadInfo *gThreadInfo;
198 UMTX gStopMutex; // Lets main thread suspend test threads.
199 UMTX gInfoMutex; // Synchronize access to data passed between
200 // worker threads and the main thread
203 //----------------------------------------------------------------------
205 // parseCommandLine Read through the command line, and save all
206 // of the options in the gRunInfo struct.
208 // Display the usage message if the command line
211 // Probably ought to be a member function of RunInfo.
213 //----------------------------------------------------------------------
215 void parseCommandLine(int argc, char **argv)
217 gRunInfo.quiet = false; // Set up defaults for run.
218 gRunInfo.verbose = false;
219 gRunInfo.numThreads = 2;
220 gRunInfo.totalTime = 0;
221 gRunInfo.checkTime = 10;
223 try // Use exceptions for command line syntax errors.
226 while (argnum < argc)
228 if (strcmp(argv[argnum], "-quiet") == 0)
229 gRunInfo.quiet = true;
230 else if (strcmp(argv[argnum], "-verbose") == 0)
231 gRunInfo.verbose = true;
232 else if (strcmp(argv[argnum], "--help") == 0 ||
233 (strcmp(argv[argnum], "?") == 0)) {throw 1; }
235 else if (strcmp(argv[argnum], "-threads") == 0)
240 gRunInfo.numThreads = atoi(argv[argnum]);
241 if (gRunInfo.numThreads < 0)
244 else if (strcmp(argv[argnum], "-time") == 0)
249 gRunInfo.totalTime = atoi(argv[argnum]);
250 if (gRunInfo.totalTime < 1)
253 else if (strcmp(argv[argnum], "-ctime") == 0)
258 gRunInfo.checkTime = atoi(argv[argnum]);
259 if (gRunInfo.checkTime < 1)
262 else if (strcmp(argv[argnum], "string") == 0)
264 gRunInfo.fTest = createStringTest();
266 else if (strcmp(argv[argnum], "convert") == 0)
268 gRunInfo.fTest = createConvertTest();
272 fprintf(stderr, "Unrecognized command line option. Scanning \"%s\"\n",
278 // We've reached the end of the command line parameters.
279 // Fail if no test name was specified.
280 if (gRunInfo.fTest == NULL) {
281 fprintf(stderr, "No test specified.\n");
288 fprintf(stderr, "usage: threadtest [-threads nnn] [-time nnn] [-quiet] [-verbose] test-name\n"
289 " -quiet Suppress periodic status display. \n"
290 " -verbose Display extra messages. \n"
291 " -threads nnn Number of threads. Default is 2. \n"
292 " -time nnn Total time to run, in seconds. Default is forever.\n"
293 " -ctime nnn Time between extra consistency checks, in seconds. Default 10\n"
294 " testname string | convert\n"
304 //----------------------------------------------------------------------
306 // threadMain The main function for each of the swarm of test threads.
307 // Run in a loop, executing the runOnce() test function each time.
310 //----------------------------------------------------------------------
314 void threadMain (void *param)
316 ThreadInfo *thInfo = (ThreadInfo *)param;
318 if (gRunInfo.verbose)
319 printf("Thread #%d: starting\n", thInfo->fThreadNum);
320 umtx_atomic_inc(&gRunInfo.runningThreads);
326 if (gRunInfo.verbose )
327 printf("Thread #%d: starting loop\n", thInfo->fThreadNum);
330 // If the main thread is asking us to wait, do so by locking gStopMutex
331 // which will block us, since the main thread will be holding it already.
333 umtx_lock(&gInfoMutex);
334 UBool stop = gRunInfo.stopFlag; // Need mutex for processors with flakey memory models.
335 umtx_unlock(&gInfoMutex);
338 if (gRunInfo.verbose) {
339 fprintf(stderr, "Thread #%d: suspending\n", thInfo->fThreadNum);
341 umtx_atomic_dec(&gRunInfo.runningThreads);
342 while (gRunInfo.stopFlag) {
343 umtx_lock(&gStopMutex);
344 umtx_unlock(&gStopMutex);
346 umtx_atomic_inc(&gRunInfo.runningThreads);
347 if (gRunInfo.verbose) {
348 fprintf(stderr, "Thread #%d: restarting\n", thInfo->fThreadNum);
353 // The real work of the test happens here.
355 gRunInfo.fTest->runOnce();
357 umtx_lock(&gInfoMutex);
358 thInfo->fHeartBeat = true;
360 UBool exitNow = gRunInfo.exitFlag;
361 umtx_unlock(&gInfoMutex);
364 // If main thread says it's time to exit, break out of the loop.
371 umtx_atomic_dec(&gRunInfo.runningThreads);
373 // Returning will kill the thread.
382 //----------------------------------------------------------------------
386 //----------------------------------------------------------------------
388 int main (int argc, char **argv)
391 // Parse the command line options, and create the specified kind of test.
393 parseCommandLine(argc, argv);
397 // Fire off the requested number of parallel threads
400 if (gRunInfo.numThreads == 0)
403 gRunInfo.exitFlag = FALSE;
404 gRunInfo.stopFlag = TRUE; // Will cause the new threads to block
405 umtx_lock(&gStopMutex);
407 gThreadInfo = new ThreadInfo[gRunInfo.numThreads];
409 for (threadNum=0; threadNum < gRunInfo.numThreads; threadNum++)
411 gThreadInfo[threadNum].fThreadNum = threadNum;
412 ThreadFuncs::startThread(threadMain, &gThreadInfo[threadNum]);
416 unsigned long startTime = ThreadFuncs::getCurrentMillis();
417 int elapsedSeconds = 0;
418 int timeSinceCheck = 0;
421 // Unblock the threads.
423 gRunInfo.stopFlag = FALSE; // Unblocks the worker threads.
424 umtx_unlock(&gStopMutex);
427 // Loop, watching the heartbeat of the worker threads.
429 // display "+" if all threads have completed at least one loop
430 // display "." if some thread hasn't since previous "+"
431 // Each "ctime" seconds,
432 // Stop all the worker threads at the top of their loop, then
433 // call the test's check function.
435 while (gRunInfo.totalTime == 0 || gRunInfo.totalTime > elapsedSeconds)
437 ThreadFuncs::Sleep(1000); // We sleep while threads do their work ...
439 if (gRunInfo.quiet == false && gRunInfo.verbose == false)
443 umtx_lock(&gInfoMutex);
444 for (threadNum=0; threadNum < gRunInfo.numThreads; threadNum++)
446 if (gThreadInfo[threadNum].fHeartBeat == false)
452 umtx_unlock(&gInfoMutex);
456 for (threadNum=0; threadNum < gRunInfo.numThreads; threadNum++)
457 gThreadInfo[threadNum].fHeartBeat = false;
461 // Update running times.
463 timeSinceCheck -= elapsedSeconds;
464 elapsedSeconds = (ThreadFuncs::getCurrentMillis() - startTime) / 1000;
465 timeSinceCheck += elapsedSeconds;
468 // Call back to the test to let it check its internal validity
470 if (timeSinceCheck >= gRunInfo.checkTime) {
471 if (gRunInfo.verbose) {
472 fprintf(stderr, "Main: suspending all threads\n");
474 umtx_lock(&gStopMutex); // Block the worker threads at the top of their loop
475 gRunInfo.stopFlag = TRUE;
477 umtx_lock(&gInfoMutex);
478 UBool done = gRunInfo.runningThreads == 0;
479 umtx_unlock(&gInfoMutex);
481 ThreadFuncs::yield();
486 gRunInfo.fTest->check();
487 if (gRunInfo.quiet == false && gRunInfo.verbose == false) {
491 if (gRunInfo.verbose) {
492 fprintf(stderr, "Main: starting all threads.\n");
494 gRunInfo.stopFlag = FALSE; // Unblock the worker threads.
495 umtx_unlock(&gStopMutex);
501 // Time's up, we are done. (We only get here if this was a timed run)
502 // Tell the threads to exit.
504 gRunInfo.exitFlag = true;
506 umtx_lock(&gInfoMutex);
507 UBool done = gRunInfo.runningThreads == 0;
508 umtx_unlock(&gInfoMutex);
510 ThreadFuncs::yield();
514 // Tally up the total number of cycles completed by each of the threads.
516 double totalCyclesCompleted = 0;
517 for (threadNum=0; threadNum < gRunInfo.numThreads; threadNum++) {
518 totalCyclesCompleted += gThreadInfo[threadNum].fCycles;
521 double cyclesPerMinute = totalCyclesCompleted / (double(gRunInfo.totalTime) / double(60));
522 printf("\n%8.1f cycles per minute.", cyclesPerMinute);
525 // Memory should be clean coming out
527 delete gRunInfo.fTest;
528 delete [] gThreadInfo;
529 umtx_destroy(&gInfoMutex);
530 umtx_destroy(&gStopMutex);