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 void initializethreads() {
142 struct sigaction sig;
145 pthread_mutex_init(&atomiclock, NULL);
147 pthread_mutex_init(&gclock, NULL);
148 pthread_mutex_init(&gclistlock, NULL);
149 pthread_cond_init(&gccond, NULL);
150 pthread_mutex_init(&objlock,NULL);
151 pthread_cond_init(&objcond,NULL);
152 pthread_mutex_init(&joinlock,NULL);
153 pthread_cond_init(&joincond,NULL);
154 pthread_key_create(&threadlocks, NULL);
156 pthread_key_create(&litem, NULL);
159 initializeexithandler();
161 //deprecated use of sighandler, but apparently still works
162 sig.sa_handler=(void *)threadhandler;
163 sig.sa_flags=SA_RESTART;
164 sigemptyset(&sig.sa_mask);
166 /* Catch bus errors, segmentation faults, and floating point exceptions*/
167 sigaction(SIGBUS,&sig,0);
168 sigaction(SIGSEGV,&sig,0);
169 sigaction(SIGFPE,&sig,0);
170 signal(SIGPIPE, SIG_IGN);
172 newobjs=calloc(1, sizeof(struct objlist));
173 t_cache = objstrCreate(1048576);
175 t_chashCreate(CHASH_SIZE, CLOADFACTOR);
177 trec=calloc(1, sizeof(threadrec_t));
179 lockedobjs=calloc(1, sizeof(struct objlist));
180 objlockscope = calloc(1, sizeof(objlockstate_t));
181 pthread_mutex_init(&lockedobjstore, NULL);
184 for(i=0; i<TOTALNUMCLASSANDARRAY; i++) {
185 typesCausingAbort[i] = 0;
191 struct listitem *litem=malloc(sizeof(struct listitem));
192 pthread_setspecific(litemkey, litem);
199 //Add our litem to list of threads
208 #if defined(THREADS)||defined(STM)
209 void initthread(struct ___Thread___ * ___this___) {
211 INTPTR p[]={1, (INTPTR) NULL, (INTPTR) ___this___};
212 //Add our litem to list of threads
214 struct listitem litem;
215 pthread_setspecific(litemkey, &litem);
218 pthread_mutex_lock(&gclistlock);
223 pthread_mutex_unlock(&gclistlock);
226 ___Thread______staticStart____L___Thread___((struct ___Thread______staticStart____L___Thread____params *)p);
228 newobjs=calloc(1, sizeof(struct objlist));
230 trec=calloc(1, sizeof(threadrec_t));
232 lockedobjs=calloc(1, sizeof(struct objlist));
234 t_cache = objstrCreate(1048576);
236 t_chashCreate(CHASH_SIZE, CLOADFACTOR);
237 ___Thread____NNR____staticStart____L___Thread___((struct ___Thread____NNR____staticStart____L___Thread____params *)p);
238 objstrDelete(t_cache);
239 objstrDelete(t_reserve);
246 ___this___=(struct ___Thread___ *) p[2];
248 ___Thread______staticStart____L___Thread___(___this___);
250 ___this___->___finished___=1;
251 pthread_mutex_lock(&joinlock);
252 pthread_cond_signal(&joincond);
253 pthread_mutex_unlock(&joinlock);
255 pthread_mutex_lock(&gclistlock);
257 pthread_setspecific(threadlocks, litem.locklist);
259 if (litem.prev==NULL) {
262 litem.prev->next=litem.next;
264 if (litem.next!=NULL) {
265 litem.next->prev=litem.prev;
268 pthread_cond_signal(&gccond);
269 pthread_mutex_unlock(&gclistlock);
273 void CALL11(___Thread______sleep____J, long long ___millis___, long long ___millis___) {
274 #if defined(THREADS)||defined(STM)
276 stopforgc((struct garbagelist *)___params___);
279 usleep(___millis___);
280 #if defined(THREADS)||defined(STM)
287 #if defined(DSTM)|| defined(THREADS)||defined(STM)
288 void CALL00(___Thread______yield____) {
294 /* Add thread join capability */
295 void CALL01(___Thread______join____, struct ___Thread___ * ___this___) {
296 unsigned int *oidarray;
297 unsigned short *versionarray, version;
299 /* Add transaction to check if thread finished for join operation */
302 ptr = transRead((unsigned int) VAR(___this___));
303 struct ___Thread___ *p = (struct ___Thread___ *) ptr;
304 #ifdef THREADJOINDEBUG
305 printf("Start join process for Oid = %x\n", (unsigned int) VAR(___this___));
307 if(p->___threadDone___ == 1) {
308 #ifdef THREADJOINDEBUG
309 printf("Thread oid = %x is done\n", (unsigned int) VAR(___this___));
315 version = (ptr-1)->version;
316 if((oidarray = calloc(1, sizeof(unsigned int))) == NULL) {
317 printf("Calloc error %s, %d\n", __FILE__, __LINE__);
321 oidarray[0] = (unsigned int) VAR(___this___);
323 if((versionarray = calloc(1, sizeof(unsigned short))) == NULL) {
324 printf("Calloc error %s, %d\n", __FILE__, __LINE__);
328 versionarray[0] = version;
329 /* Request Notification */
331 stopforgc((struct garbagelist *)___params___);
333 reqNotify(oidarray, versionarray, 1);
346 #if defined(THREADS)||defined(STM)
347 void CALL01(___Thread______nativeJoin____, struct ___Thread___ * ___this___) {
348 pthread_mutex_lock(&joinlock);
349 while(!VAR(___this___)->___finished___) {
351 stopforgc((struct garbagelist *)___params___);
353 pthread_cond_wait(&joincond, &joinlock);
358 pthread_mutex_unlock(&joinlock);
361 void CALL01(___Thread______nativeCreate____, struct ___Thread___ * ___this___) {
364 pthread_attr_t nattr;
366 pthread_mutex_lock(&gclistlock);
368 pthread_mutex_unlock(&gclistlock);
369 pthread_attr_init(&nattr);
370 pthread_attr_setdetachstate(&nattr, PTHREAD_CREATE_DETACHED);
373 retval=pthread_create(&thread, &nattr, (void * (*)(void *)) &initthread, VAR(___this___));
377 /* This next statement will likely not work on many machines */
379 pthread_attr_destroy(&nattr);
384 void CALL12(___Thread______start____I, int ___mid___, struct ___Thread___ * ___this___, int ___mid___) {
385 startRemoteThread((unsigned int)VAR(___this___), ___mid___);
390 void globalDestructor(void *value) {
392 pthread_setspecific(oidval, NULL);
395 void initDSMthread(int *ptr) {
402 int p[]={1, 0 /* NULL */, oid};
404 struct listitem litem;
405 pthread_setspecific(litemkey, &litem);
408 //Add our litem to list of threads
410 pthread_mutex_lock(&gclistlock);
415 pthread_mutex_unlock(&gclistlock);
417 ((void(*) (void *))virtualtable[type*MAXCOUNT+RUNMETHOD])(p);
419 ((void(*) (void *))virtualtable[type*MAXCOUNT+RUNMETHOD])(oid);
421 threadData = calloc(1, sizeof(unsigned int));
422 *((unsigned int *) threadData) = oid;
423 pthread_setspecific(oidval, threadData);
424 pthread_mutex_lock(&gclistlock);
427 pthread_setspecific(threadlocks, litem.locklist);
429 if (litem.prev==NULL) {
432 litem.prev->next=litem.next;
434 if (litem.next!=NULL) {
435 litem.next->prev=litem.prev;
438 pthread_cond_signal(&gccond);
439 pthread_mutex_unlock(&gclistlock);
440 /* Add transaction to check if thread finished for join operation */
445 tmp = transRead((unsigned int) oid);
446 ((struct ___Thread___ *)tmp)->___threadDone___ = 1;
447 *((unsigned int *)&((struct ___Object___ *) tmp)->___localcopy___) |=DIRTY;
448 if(transCommit()!= 0) {
455 void startDSMthread(int oid, int objType) {
458 pthread_attr_t nattr;
460 pthread_mutex_lock(&gclistlock);
462 pthread_mutex_unlock(&gclistlock);
463 pthread_attr_init(&nattr);
464 pthread_attr_setdetachstate(&nattr, PTHREAD_CREATE_DETACHED);
465 int * ptr=malloc(sizeof(int)*2);
468 pthread_key_create(&oidval, globalDestructor);
470 retval=pthread_create(&thread, &nattr, (void * (*)(void *)) &initDSMthread, ptr);
475 pthread_attr_destroy(&nattr);