11 #include <DSTM/interface/dstm.h>
12 #include <DSTM/interface/llookup.h>
25 pthread_mutex_t gclock;
26 pthread_mutex_t gclistlock;
27 pthread_cond_t gccond;
28 pthread_mutex_t objlock;
29 pthread_cond_t objcond;
31 pthread_mutex_t atomiclock;
33 pthread_mutex_t joinlock;
34 pthread_cond_t joincond;
35 pthread_key_t threadlocks;
36 pthread_mutex_t threadnotifylock;
37 pthread_cond_t threadnotifycond;
40 #if defined(THREADS) || defined(DSTM) || defined(STM)
42 extern __thread struct listitem litem;
44 pthread_key_t litemkey;
46 extern struct listitem * list;
52 unsigned int oidvalue;
57 struct ___Object___ *ll=pthread_getspecific(threadlocks);
59 struct ___Object___ *llnext=ll->___nextlockobject___;
60 ll->___nextlockobject___=NULL;
61 ll->___prevlockobject___=NULL;
63 ll->tid=0; //unlock it
66 pthread_mutex_lock(&objlock); //wake everyone up
67 pthread_cond_broadcast(&objcond);
68 pthread_mutex_unlock(&objlock);
70 pthread_mutex_lock(&gclistlock);
72 pthread_setspecific(threadlocks, litem.locklist);
75 if (litem.prev==NULL) {
78 litem.prev->next=litem.next;
80 if (litem.next!=NULL) {
81 litem.next->prev=litem.prev;
85 struct listitem *litem=pthread_getspecific(litemkey);
86 if (litem->prev==NULL) {
89 litem->prev->next=litem->next;
91 if (litem->next!=NULL) {
92 litem->next->prev=litem->prev;
97 pthread_cond_signal(&gccond);
98 pthread_mutex_unlock(&gclistlock);
100 /* Add transaction to check if thread finished for join operation */
101 value = pthread_getspecific(oidval);
102 oidvalue = *((unsigned int *)value);
107 ptr = transRead(oidvalue);
108 struct ___Thread___ *p = (struct ___Thread___ *) ptr;
109 p->___threadDone___ = 1;
110 *((unsigned int *)&((struct ___Object___ *) p)->___localcopy___) |=DIRTY;
111 if(transCommit() != 0) {
119 void threadhandler(int sig, struct sigcontext ctx) {
124 printf("We just took sig=%d\n",sig);
126 printf("To get stack trace, set breakpoint in threadhandler in gdb\n");
127 nptrs = backtrace(buffer, 100);
128 buffer[1]=(void *)ctx.eip;
129 strings = backtrace_symbols(buffer, nptrs);
130 if (strings == NULL) {
131 perror("backtrace_symbols");
135 for (j = 0; j < nptrs; j++)
136 printf("%s\n", strings[j]);
141 struct primitivelist *pl;
143 void initializethreads() {
144 struct sigaction sig;
147 pthread_mutex_init(&atomiclock, NULL);
149 pthread_mutex_init(&gclock, NULL);
150 pthread_mutex_init(&gclistlock, NULL);
151 pthread_cond_init(&gccond, NULL);
152 pthread_mutex_init(&objlock,NULL);
153 pthread_cond_init(&objcond,NULL);
154 pthread_mutex_init(&joinlock,NULL);
155 pthread_cond_init(&joincond,NULL);
156 pthread_key_create(&threadlocks, NULL);
158 pthread_key_create(&litem, NULL);
161 initializeexithandler();
163 //deprecated use of sighandler, but apparently still works
164 sig.sa_handler=(void *)threadhandler;
165 sig.sa_flags=SA_RESTART;
166 sigemptyset(&sig.sa_mask);
168 /* Catch bus errors, segmentation faults, and floating point exceptions*/
169 sigaction(SIGBUS,&sig,0);
170 sigaction(SIGSEGV,&sig,0);
171 sigaction(SIGFPE,&sig,0);
172 signal(SIGPIPE, SIG_IGN);
174 newobjs=calloc(1, sizeof(struct objlist));
175 t_cache = objstrCreate(1048576);
177 t_chashCreate(CHASH_SIZE, CLOADFACTOR);
179 dc_t_chashCreate(CHASH_SIZE, CLOADFACTOR);
185 trec=calloc(1, sizeof(threadrec_t));
187 lockedobjs=calloc(1, sizeof(struct objlist));
188 objlockscope = calloc(1, sizeof(objlockstate_t));
189 pthread_mutex_init(&lockedobjstore, NULL);
192 for(i=0; i<TOTALNUMCLASSANDARRAY; i++) {
193 typesCausingAbort[i] = 0;
199 struct listitem *litem=malloc(sizeof(struct listitem));
200 pthread_setspecific(litemkey, litem);
207 //Add our litem to list of threads
216 #if defined(THREADS)||defined(STM)
217 void initthread(struct ___Thread___ * ___this___) {
219 INTPTR p[]={1, (INTPTR) NULL, (INTPTR) ___this___};
220 //Add our litem to list of threads
222 struct listitem litem;
223 pthread_setspecific(litemkey, &litem);
226 pthread_mutex_lock(&gclistlock);
231 pthread_mutex_unlock(&gclistlock);
234 ___Thread______staticStart____L___Thread___((struct ___Thread______staticStart____L___Thread____params *)p);
236 newobjs=calloc(1, sizeof(struct objlist));
238 trec=calloc(1, sizeof(threadrec_t));
240 lockedobjs=calloc(1, sizeof(struct objlist));
242 t_cache = objstrCreate(1048576);
244 t_chashCreate(CHASH_SIZE, CLOADFACTOR);
246 dc_t_chashCreate(CHASH_SIZE, CLOADFACTOR);
250 ___Thread____NNR____staticStart____L___Thread___((struct ___Thread____NNR____staticStart____L___Thread____params *)p);
251 objstrDelete(t_cache);
252 objstrDelete(t_reserve);
259 ___this___=(struct ___Thread___ *) p[2];
261 ___Thread______staticStart____L___Thread___(___this___);
263 ___this___->___finished___=1;
264 pthread_mutex_lock(&joinlock);
265 pthread_cond_signal(&joincond);
266 pthread_mutex_unlock(&joinlock);
268 pthread_mutex_lock(&gclistlock);
270 pthread_setspecific(threadlocks, litem.locklist);
272 if (litem.prev==NULL) {
275 litem.prev->next=litem.next;
277 if (litem.next!=NULL) {
278 litem.next->prev=litem.prev;
281 pthread_cond_signal(&gccond);
282 pthread_mutex_unlock(&gclistlock);
286 void CALL11(___Thread______sleep____J, long long ___millis___, long long ___millis___) {
287 #if defined(THREADS)||defined(STM)
289 stopforgc((struct garbagelist *)___params___);
292 usleep(___millis___);
293 #if defined(THREADS)||defined(STM)
300 #if defined(DSTM)|| defined(THREADS)||defined(STM)
301 void CALL00(___Thread______yield____) {
307 /* Add thread join capability */
308 void CALL01(___Thread______join____, struct ___Thread___ * ___this___) {
309 unsigned int *oidarray;
310 unsigned short *versionarray, version;
312 /* Add transaction to check if thread finished for join operation */
315 ptr = transRead((unsigned int) VAR(___this___));
316 struct ___Thread___ *p = (struct ___Thread___ *) ptr;
317 #ifdef THREADJOINDEBUG
318 printf("Start join process for Oid = %x\n", (unsigned int) VAR(___this___));
320 if(p->___threadDone___ == 1) {
321 #ifdef THREADJOINDEBUG
322 printf("Thread oid = %x is done\n", (unsigned int) VAR(___this___));
328 version = (ptr-1)->version;
329 if((oidarray = calloc(1, sizeof(unsigned int))) == NULL) {
330 printf("Calloc error %s, %d\n", __FILE__, __LINE__);
334 oidarray[0] = (unsigned int) VAR(___this___);
336 if((versionarray = calloc(1, sizeof(unsigned short))) == NULL) {
337 printf("Calloc error %s, %d\n", __FILE__, __LINE__);
341 versionarray[0] = version;
342 /* Request Notification */
344 stopforgc((struct garbagelist *)___params___);
346 reqNotify(oidarray, versionarray, 1);
359 #if defined(THREADS)||defined(STM)
360 void CALL01(___Thread______nativeJoin____, struct ___Thread___ * ___this___) {
361 pthread_mutex_lock(&joinlock);
362 while(!VAR(___this___)->___finished___) {
364 stopforgc((struct garbagelist *)___params___);
366 pthread_cond_wait(&joincond, &joinlock);
371 pthread_mutex_unlock(&joinlock);
374 void CALL01(___Thread______nativeCreate____, struct ___Thread___ * ___this___) {
377 pthread_attr_t nattr;
379 pthread_mutex_lock(&gclistlock);
381 pthread_mutex_unlock(&gclistlock);
382 pthread_attr_init(&nattr);
383 pthread_attr_setdetachstate(&nattr, PTHREAD_CREATE_DETACHED);
386 retval=pthread_create(&thread, &nattr, (void * (*)(void *)) &initthread, VAR(___this___));
390 /* This next statement will likely not work on many machines */
392 pthread_attr_destroy(&nattr);
397 void CALL12(___Thread______start____I, int ___mid___, struct ___Thread___ * ___this___, int ___mid___) {
398 startRemoteThread((unsigned int)VAR(___this___), ___mid___);
403 void globalDestructor(void *value) {
405 pthread_setspecific(oidval, NULL);
408 void initDSMthread(int *ptr) {
415 int p[]={1, 0 /* NULL */, oid};
417 struct listitem litem;
418 pthread_setspecific(litemkey, &litem);
421 //Add our litem to list of threads
423 pthread_mutex_lock(&gclistlock);
428 pthread_mutex_unlock(&gclistlock);
430 ((void(*) (void *))virtualtable[type*MAXCOUNT+RUNMETHOD])(p);
432 ((void(*) (void *))virtualtable[type*MAXCOUNT+RUNMETHOD])(oid);
434 threadData = calloc(1, sizeof(unsigned int));
435 *((unsigned int *) threadData) = oid;
436 pthread_setspecific(oidval, threadData);
437 pthread_mutex_lock(&gclistlock);
440 pthread_setspecific(threadlocks, litem.locklist);
442 if (litem.prev==NULL) {
445 litem.prev->next=litem.next;
447 if (litem.next!=NULL) {
448 litem.next->prev=litem.prev;
451 pthread_cond_signal(&gccond);
452 pthread_mutex_unlock(&gclistlock);
453 /* Add transaction to check if thread finished for join operation */
458 tmp = transRead((unsigned int) oid);
459 ((struct ___Thread___ *)tmp)->___threadDone___ = 1;
460 *((unsigned int *)&((struct ___Object___ *) tmp)->___localcopy___) |=DIRTY;
461 if(transCommit()!= 0) {
468 void startDSMthread(int oid, int objType) {
471 pthread_attr_t nattr;
473 pthread_mutex_lock(&gclistlock);
475 pthread_mutex_unlock(&gclistlock);
476 pthread_attr_init(&nattr);
477 pthread_attr_setdetachstate(&nattr, PTHREAD_CREATE_DETACHED);
478 int * ptr=malloc(sizeof(int)*2);
481 pthread_key_create(&oidval, globalDestructor);
483 retval=pthread_create(&thread, &nattr, (void * (*)(void *)) &initDSMthread, ptr);
488 pthread_attr_destroy(&nattr);