+++ /dev/null
-#include "checkpoint.h"
-#include "runtime.h"
-#include "structdefs.h"
-#include <string.h>
-#ifdef DMALLOC
-#include "dmalloc.h"
-#endif
-
-#define MALLOCSIZE 20*1024
-
-struct malloclist {
- struct malloclist *next;
- int size;
- char space[];
-};
-
-struct malloclist * top=NULL;
-int offset=0;
-
-void * cpmalloc(int size) {
- int endoffset=offset+size;
- if (top==NULL||endoffset>top->size) {
- int basesize=MALLOCSIZE;
- struct malloclist *tmp;
- if (size>basesize)
- basesize=size;
- tmp=RUNMALLOC(sizeof(struct malloclist)+basesize);
- tmp->next=top;
- top=tmp;
- top->size=basesize;
- offset=0;
- }
- int tmpoffset=offset;
- offset+=size;
- return &top->space[tmpoffset];
-}
-
-void freemalloc() {
- while(top!=NULL) {
- struct malloclist *next=top->next;
- RUNFREE(top);
- top=next;
- }
-}
-
-
-void ** makecheckpoint(int numparams, void ** srcpointer, struct RuntimeHash * forward, struct RuntimeHash * reverse) {
-#ifdef PRECISE_GC
- void **newarray=cpmalloc(sizeof(void *)*numparams);
-#else
- void **newarray=RUNMALLOC(sizeof(void *)*numparams);
-#endif
- struct RuntimeHash *todo=allocateRuntimeHash(100);
- int i;
- for(i=0;i<numparams;i++) {
- void * objptr=srcpointer[i];
- if (RuntimeHashcontainskey(forward, (int) objptr))
- RuntimeHashget(forward,(int) objptr,(int *) &newarray[i]);
- else {
- void * copy=createcopy(objptr);
- RuntimeHashadd(forward, (int) objptr, (int)copy);
- RuntimeHashadd(reverse, (int) copy, (int) objptr);
- RuntimeHashadd(todo, (int) objptr, (int) objptr);
- newarray[i]=copy;
- }
- }
- while(RuntimeHashcountset(todo)!=0) {
- void * ptr=(void *) RuntimeHashfirstkey(todo);
- int type=((int *)ptr)[0];
- RuntimeHashremove(todo, (int) ptr, (int) ptr);
- {
- void *cpy;
- RuntimeHashget(forward, (int) ptr, (int *) &cpy);
- int * pointer=pointerarray[type];
- if (pointer==0) {
- /* Array of primitives */
- /* Do nothing */
- } else if (((int)pointer)==1) {
- /* Array of pointers */
- struct ArrayObject *ao=(struct ArrayObject *) ptr;
- struct ArrayObject *ao_cpy=(struct ArrayObject *) cpy;
- int length=ao->___length___;
- int i;
- for(i=0;i<length;i++) {
- void *objptr=((void **)(((char *)& ao->___length___)+sizeof(int)))[i];
- if (objptr==NULL) {
- ((void **)(((char *)& ao->___length___)+sizeof(int)))[i]=NULL;
- } else if (RuntimeHashcontainskey(forward, (int) objptr))
- RuntimeHashget(forward,(int) objptr,(int *) &((void **)(((char *)& ao_cpy->___length___)+sizeof(int)))[i]);
- else {
- void * copy=createcopy(objptr);
- RuntimeHashadd(forward, (int) objptr, (int)copy);
- RuntimeHashadd(reverse, (int) copy, (int) objptr);
- RuntimeHashadd(todo, (int) objptr, (int) objptr);
- ((void **)(((char *)& ao_cpy->___length___)+sizeof(int)))[i]=copy;
- }
- }
- } else {
- int size=pointer[0];
- int i;
- for(i=1;i<=size;i++) {
- int offset=pointer[i];
- void * objptr=*((void **)(((int)ptr)+offset));
- if (objptr==NULL) {
- *((void **) (((int)cpy)+offset))=NULL;
- } else if (RuntimeHashcontainskey(forward, (int) objptr))
- RuntimeHashget(forward, (int) objptr, (int *) &(((char *)cpy)[offset]));
- else {
- void * copy=createcopy(objptr);
- RuntimeHashadd(forward, (int) objptr, (int) copy);
- RuntimeHashadd(reverse, (int) copy, (int) objptr);
- RuntimeHashadd(todo, (int) objptr, (int) objptr);
- *((void **) (((int)cpy)+offset))=copy;
- }
- }
- }
- }
- }
- freeRuntimeHash(todo);
- return newarray;
-}
-
-void * createcopy(void * orig) {
- if (orig==0)
- return 0;
- else {
- int type=((int *)orig)[0];
- if (type<NUMCLASSES) {
- /* We have a normal object */
- int size=classsize[type];
-#ifdef PRECISE_GC
- void *newobj=cpmalloc(size);
-#else
- void *newobj=RUNMALLOC(size);
-#endif
- memcpy(newobj, orig, size);
- return newobj;
- } else {
- /* We have an array */
- struct ArrayObject *ao=(struct ArrayObject *)orig;
- int elementsize=classsize[type];
- int length=ao->___length___;
- int size=sizeof(struct ArrayObject)+length*elementsize;
-#ifdef PRECISE_GC
- void *newobj=cpmalloc(size);
-#else
- void *newobj=RUNMALLOC(size);
-#endif
- memcpy(newobj, orig, size);
- return newobj;
- }
- }
-}
-
-void restorecheckpoint(int numparams, void ** original, void ** checkpoint, struct RuntimeHash *forward, struct RuntimeHash * reverse) {
- struct RuntimeHash *todo=allocateRuntimeHash(100);
- struct RuntimeHash *visited=allocateRuntimeHash(100);
- int i;
-
- for(i=0;i<numparams;i++) {
- if (checkpoint[i]!=NULL) {
- RuntimeHashadd(todo, (int) checkpoint[i], (int) checkpoint[i]);
- RuntimeHashadd(visited, (int) checkpoint[i], (int) checkpoint[i]);
- }
- }
-
- while(RuntimeHashcountset(todo)!=0) {
- void * ptr=(void *) RuntimeHashfirstkey(todo);
- int type=((int *)ptr)[0];
- RuntimeHashremove(todo, (int) ptr, (int) ptr);
-
- {
- void *cpy;
- int *pointer;
- int size;
- RuntimeHashget(reverse, (int) ptr, (int *) &cpy);
- pointer=pointerarray[type];
- size=classsize[type];
-
- if (pointer==0) {
- /* Array of primitives */
- struct ArrayObject *ao=(struct ArrayObject *) ptr;
- int length=ao->___length___;
- int cpysize=sizeof(struct ArrayObject)+length*size;
- memcpy(cpy, ptr, cpysize);
-
- } else if ((int)pointer==1) {
- /* Array of pointers */
- struct ArrayObject *ao=(struct ArrayObject *) ptr;
- struct ArrayObject *ao_cpy=(struct ArrayObject *) cpy;
- int length=ao->___length___;
- int i;
- int cpysize=sizeof(struct ArrayObject)+length*size;
- memcpy(ao_cpy, ao, cpysize);
-
- for(i=0;i<length;i++) {
- void *objptr=((void **)(((char *)& ao->___length___)+sizeof(int)))[i];
- if (objptr==NULL)
- ((void **)(((char *)& ao_cpy->___length___)+sizeof(int)))[i]=NULL;
- else {
- if (!RuntimeHashcontainskey(visited, (int) objptr)) {
- RuntimeHashadd(visited, (int) objptr, (int) objptr);
- RuntimeHashadd(todo, (int) objptr, (int) objptr);
- }
- RuntimeHashget(reverse, (int) objptr, (int *) &((void **)(((char *)& ao_cpy->___length___)+sizeof(int)))[i]);
- }
- }
- } else {
- int numptr=pointer[0];
- int i;
- void *flagptr;
- if (hasflags[type]) {
- flagptr=(void *) (((int *)cpy)[2]);
- }
- memcpy(cpy, ptr, size);
- for(i=1;i<=numptr;i++) {
- int offset=pointer[i];
- void * objptr=*((void **)(((int)ptr)+offset));
- if (objptr==NULL)
- *((void **) (((int)cpy)+offset))=NULL;
- else {
- if (!RuntimeHashcontainskey(visited, (int) objptr)) {
- RuntimeHashadd(visited, (int) objptr, (int) objptr);
- RuntimeHashadd(todo, (int) objptr, (int) objptr);
- }
- RuntimeHashget(reverse, (int) objptr, (int *) &(((char *)cpy)[offset]));
- }
- }
- if (hasflags[type]) {
- (((void **)cpy)[2])=flagptr;
- flagorandinit(cpy, 0, 0xFFFFFFFF);
- }
- }
- }
- }
- freeRuntimeHash(todo);
- freeRuntimeHash(visited);
-}
projects / IRC.git / blobdiff