#include "thread.h"
#include "option.h"
#include <signal.h>
+#include <DSTM/interface/dstm.h>
+#include <DSTM/interface/llookup.h>
+#ifndef RAW
#include <stdio.h>
+#endif
int threadcount;
pthread_mutex_t gclock;
pthread_mutex_t gclistlock;
pthread_cond_t gccond;
pthread_mutex_t objlock;
pthread_cond_t objcond;
+
+pthread_mutex_t joinlock;
+pthread_cond_t joincond;
pthread_key_t threadlocks;
+pthread_mutex_t threadnotifylock;
+pthread_cond_t threadnotifycond;
+pthread_key_t oidval;
void threadexit() {
+ objheader_t* ptr;
+ void *value;
+ transrecord_t * trans;
+ unsigned int oidvalue;
+
#ifdef THREADS
struct ___Object___ *ll=pthread_getspecific(threadlocks);
while(ll!=NULL) {
- struct ___Object___ *llnext=ll->___nextlockobject___;
+ struct ___Object___ *llnext=ll->___nextlockobject___;
ll->___nextlockobject___=NULL;
ll->___prevlockobject___=NULL;
ll->lockcount=0;
ll->tid=0; //unlock it
ll=llnext;
}
- pthread_mutex_lock(&objlock);//wake everyone up
+ pthread_mutex_lock(&objlock); //wake everyone up
pthread_cond_broadcast(&objcond);
pthread_mutex_unlock(&objlock);
#endif
threadcount--;
pthread_cond_signal(&gccond);
pthread_mutex_unlock(&gclistlock);
+#ifdef DSTM
+ /* Add transaction to check if thread finished for join operation */
+ value = pthread_getspecific(oidval);
+ oidvalue = *((unsigned int *)value);
+ goto transstart;
+transstart:
+ {
+ transrecord_t * trans = transStart();
+ ptr = transRead(trans, oidvalue);
+ struct ___Thread___ *p = (struct ___Thread___ *) ptr;
+ p->___threadDone___ = 1;
+ *((unsigned int *)&((struct ___Object___ *) p)->___localcopy___) |=DIRTY;
+ if(transCommit(trans) != 0) {
+ goto transstart;
+ }
+ }
+#endif
pthread_exit(NULL);
}
pthread_cond_init(&gccond, NULL);
pthread_mutex_init(&objlock,NULL);
pthread_cond_init(&objcond,NULL);
+ pthread_mutex_init(&joinlock,NULL);
+ pthread_cond_init(&joincond,NULL);
pthread_key_create(&threadlocks, NULL);
processOptions();
initializeexithandler();
#ifdef THREADS
void initthread(struct ___Thread___ * ___this___) {
#ifdef PRECISE_GC
- struct ___Thread______staticStart____L___Thread____params p={1, NULL, ___this___};
- ___Thread______staticStart____L___Thread___(&p);
+ int p[]={1, (int) NULL, (int) ___this___};
+ ___Thread______staticStart____L___Thread___((struct ___Thread______staticStart____L___Thread____params *)p);
+ ___this___=(struct ___Thread___ *) p[2];
#else
___Thread______staticStart____L___Thread___(___this___);
#endif
+ ___this___->___finished___=1;
+ pthread_mutex_lock(&joinlock);
+ pthread_cond_signal(&joincond);
+ pthread_mutex_unlock(&joinlock);
+
pthread_mutex_lock(&gclistlock);
threadcount--;
pthread_cond_signal(&gccond);
struct listitem *tmp=stopforgc((struct garbagelist *)___params___);
#endif
#endif
- usleep(___millis___);
+ usleep(___millis___);
#ifdef THREADS
#ifdef PRECISE_GC
restartaftergc(tmp);
#endif
}
+#if defined(DSTM)|| defined(THREADS)
+void CALL00(___Thread______yield____) {
+ pthread_yield();
+}
+#endif
+
+#ifdef DSTM
+/* Add thread join capability */
+void CALL01(___Thread______join____, struct ___Thread___ * ___this___) {
+ unsigned int *oidarray;
+ unsigned short *versionarray, version;
+ transrecord_t *trans;
+ objheader_t *ptr;
+ /* Add transaction to check if thread finished for join operation */
+ goto transstart;
+transstart:
+ trans = transStart();
+ ptr = transRead(trans, (unsigned int) VAR(___this___));
+ struct ___Thread___ *p = (struct ___Thread___ *) ptr;
+#ifdef THREADJOINDEBUG
+ printf("Start join process for Oid = %x\n", (unsigned int) VAR(___this___));
+#endif
+ if(p->___threadDone___ == 1) {
+#ifdef THREADJOINDEBUG
+ printf("Thread oid = %x is done\n", (unsigned int) VAR(___this___));
+#endif
+ transAbort(trans);
+ return;
+ } else {
+
+ version = (ptr-1)->version;
+ if((oidarray = calloc(1, sizeof(unsigned int))) == NULL) {
+ printf("Calloc error %s, %d\n", __FILE__, __LINE__);
+ return;
+ }
+
+ oidarray[0] = (unsigned int) VAR(___this___);
+
+ if((versionarray = calloc(1, sizeof(unsigned short))) == NULL) {
+ printf("Calloc error %s, %d\n", __FILE__, __LINE__);
+ free(oidarray);
+ return;
+ }
+ versionarray[0] = version;
+ /* Request Notification */
+#ifdef PRECISE_GC
+ struct listitem *tmp=stopforgc((struct garbagelist *)___params___);
+#endif
+ reqNotify(oidarray, versionarray, 1);
+#ifdef PRECISE_GC
+ restartaftergc(tmp);
+#endif
+ free(oidarray);
+ free(versionarray);
+ transAbort(trans);
+ goto transstart;
+ }
+ return;
+}
+#endif
+
#ifdef THREADS
+void CALL01(___Thread______nativeJoin____, struct ___Thread___ * ___this___) {
+ pthread_mutex_lock(&joinlock);
+ while(!VAR(___this___)->___finished___)
+ pthread_cond_wait(&joincond, &joinlock);
+ pthread_mutex_unlock(&joinlock);
+}
+
void CALL01(___Thread______nativeCreate____, struct ___Thread___ * ___this___) {
pthread_t thread;
int retval;
pthread_mutex_unlock(&gclistlock);
pthread_attr_init(&nattr);
pthread_attr_setdetachstate(&nattr, PTHREAD_CREATE_DETACHED);
-
+
do {
retval=pthread_create(&thread, &nattr, (void * (*)(void *)) &initthread, VAR(___this___));
if (retval!=0)
usleep(1);
} while(retval!=0);
+ /* This next statement will likely not work on many machines */
pthread_attr_destroy(&nattr);
}
#endif
#ifdef DSTM
+void globalDestructor(void *value) {
+ free(value);
+ pthread_setspecific(oidval, NULL);
+}
+
void initDSMthread(int *ptr) {
+ objheader_t *tmp;
+ transrecord_t * trans;
+ void *threadData;
int oid=ptr[0];
int type=ptr[1];
free(ptr);
#ifdef PRECISE_GC
int p[]={1, 0 /* NULL */, oid};
- ((void (*)(void *))virtualtable[type*MAXCOUNT+RUNMETHOD])(p);
+ ((void(*) (void *))virtualtable[type*MAXCOUNT+RUNMETHOD])(p);
#else
- ((void (*)(void *))virtualtable[type*MAXCOUNT+RUNMETHOD])(oid);
+ ((void(*) (void *))virtualtable[type*MAXCOUNT+RUNMETHOD])(oid);
#endif
+ threadData = calloc(1, sizeof(unsigned int));
+ *((unsigned int *) threadData) = oid;
+ pthread_setspecific(oidval, threadData);
pthread_mutex_lock(&gclistlock);
threadcount--;
pthread_cond_signal(&gccond);
pthread_mutex_unlock(&gclistlock);
+ /* Add transaction to check if thread finished for join operation */
+ goto transstart;
+transstart:
+ {
+ transrecord_t * trans = transStart();
+ tmp = transRead(trans, (unsigned int) oid);
+ ((struct ___Thread___ *)tmp)->___threadDone___ = 1;
+ *((unsigned int *)&((struct ___Object___ *) tmp)->___localcopy___) |=DIRTY;
+ if(transCommit(trans)!= 0) {
+ goto transstart;
+ }
+ }
+ pthread_exit(NULL);
}
void startDSMthread(int oid, int objType) {
int * ptr=malloc(sizeof(int)*2);
ptr[0]=oid;
ptr[1]=objType;
+ pthread_key_create(&oidval, globalDestructor);
do {
retval=pthread_create(&thread, &nattr, (void * (*)(void *)) &initDSMthread, ptr);
if (retval!=0)
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