#if USE_CHECKPOINTING
if( si->si_code == SEGV_MAPERR ){
printf("Real Fault at %llx\n", ( long long )si->si_addr);
#if USE_CHECKPOINTING
if( si->si_code == SEGV_MAPERR ){
printf("Real Fault at %llx\n", ( long long )si->si_addr);
}
void* addr = ReturnPageAlignedAddress(si->si_addr);
unsigned int backingpage=snapshotrecord->lastBackingPage++; //Could run out of pages...
if (backingpage==snapshotrecord->maxBackingPages) {
printf("Out of backing pages at %llx\n", ( long long )si->si_addr);
}
void* addr = ReturnPageAlignedAddress(si->si_addr);
unsigned int backingpage=snapshotrecord->lastBackingPage++; //Could run out of pages...
if (backingpage==snapshotrecord->maxBackingPages) {
printf("Out of backing pages at %llx\n", ( long long )si->si_addr);
basemySpace=MYMALLOC((numheappages+1)*PAGESIZE);
void * pagealignedbase=PageAlignAddressUpward(basemySpace);
mySpace = create_mspace_with_base(pagealignedbase, numheappages*PAGESIZE, 1 );
basemySpace=MYMALLOC((numheappages+1)*PAGESIZE);
void * pagealignedbase=PageAlignAddressUpward(basemySpace);
mySpace = create_mspace_with_base(pagealignedbase, numheappages*PAGESIZE, 1 );
gettimeofday( starttime, NULL );
#endif
//step 2 setup the stack context.
gettimeofday( starttime, NULL );
#endif
//step 2 setup the stack context.
makecontext( &newContext, entryPoint, 0 );
swapcontext( &swappedContext, &newContext );
}
makecontext( &newContext, entryPoint, 0 );
swapcontext( &swappedContext, &newContext );
}
//add the code to take a snapshot here...
//to return to user process, do a second swapcontext...
pid_t forkedID = 0;
//add the code to take a snapshot here...
//to return to user process, do a second swapcontext...
pid_t forkedID = 0;
sprintf( mesg, "The process id of child is %d and the process id of this process is %d and snapshot id is %d", forkedID, getpid(), snapshotid );
DumpIntoLog( "ModelSnapshot", mesg );
#endif
sprintf( mesg, "The process id of child is %d and the process id of this process is %d and snapshot id is %d", forkedID, getpid(), snapshotid );
DumpIntoLog( "ModelSnapshot", mesg );
#endif
retVal=waitpid( forkedID, &status, 0 );
} while( -1 == retVal && errno == EINTR );
retVal=waitpid( forkedID, &status, 0 );
} while( -1 == retVal && errno == EINTR );
snapshotrecord->regionsToSnapShot[ memoryregion ].basePtr=addr;
snapshotrecord->regionsToSnapShot[ memoryregion ].sizeInPages=numPages;
#endif //NOT REQUIRED IN THE CASE OF FORK BASED SNAPSHOTS.
snapshotrecord->regionsToSnapShot[ memoryregion ].basePtr=addr;
snapshotrecord->regionsToSnapShot[ memoryregion ].sizeInPages=numPages;
#endif //NOT REQUIRED IN THE CASE OF FORK BASED SNAPSHOTS.
}
for(unsigned int page=snapshotrecord->snapShots[theID].firstBackingPage; page<snapshotrecord->lastBackingPage; page++) {
bool oldVal = false;
if( duplicateMap.find( snapshotrecord->backingRecords[page].basePtrOfPage ) != duplicateMap.end() ){
}
for(unsigned int page=snapshotrecord->snapShots[theID].firstBackingPage; page<snapshotrecord->lastBackingPage; page++) {
bool oldVal = false;
if( duplicateMap.find( snapshotrecord->backingRecords[page].basePtrOfPage ) != duplicateMap.end() ){
}
if( !oldVal ){
memcpy(snapshotrecord->backingRecords[page].basePtrOfPage, &snapshotrecord->backingStore[page], sizeof(struct SnapShotPage));
}
if( !oldVal ){
memcpy(snapshotrecord->backingRecords[page].basePtrOfPage, &snapshotrecord->backingStore[page], sizeof(struct SnapShotPage));