/* Global Variables */
extern int classsize[];
pfcstats_t *evalPrefetch;
-extern int numprefetchsites; //Global variable containing number of prefetch sites
-extern pthread_mutex_t mainobjstore_mutex;// Mutex to lock main Object store
+extern int numprefetchsites; //Global variable containing number of prefetch sites
+extern pthread_mutex_t mainobjstore_mutex; // Mutex to lock main Object store
objstr_t *prefetchcache; //Global Prefetch cache
-pthread_mutex_t prefetchcache_mutex;// Mutex to lock Prefetch Cache
+pthread_mutex_t prefetchcache_mutex; // Mutex to lock Prefetch Cache
pthread_mutexattr_t prefetchcache_mutex_attr; /* Attribute for lock to make it a recursive lock */
extern prehashtable_t pflookup; //Global Prefetch cache's lookup table
pthread_t wthreads[NUM_THREADS]; //Worker threads for working on the prefetch queue
-pthread_t tPrefetch; /* Primary Prefetch thread that processes the prefetch queue */
+pthread_t tPrefetch; /* Primary Prefetch thread that processes the prefetch queue */
extern objstr_t *mainobjstore;
unsigned int myIpAddr;
unsigned int *hostIpAddrs;
plistnode_t *createPiles(transrecord_t *);
/*******************************
- * Send and Recv function calls
- *******************************/
-void send_data(int fd , void *buf, int buflen) {
- char *buffer = (char *)(buf);
+* Send and Recv function calls
+*******************************/
+void send_data(int fd, void *buf, int buflen) {
+ char *buffer = (char *)(buf);
int size = buflen;
- int numbytes;
+ int numbytes;
while (size > 0) {
numbytes = send(fd, buffer, size, MSG_NOSIGNAL);
if (numbytes == -1) {
}
}
-void recv_data(int fd , void *buf, int buflen) {
- char *buffer = (char *)(buf);
+void recv_data(int fd, void *buf, int buflen) {
+ char *buffer = (char *)(buf);
int size = buflen;
- int numbytes;
+ int numbytes;
while (size > 0) {
numbytes = recv(fd, buffer, size, 0);
if (numbytes == -1) {
}
}
-int recv_data_errorcode(int fd , void *buf, int buflen) {
- char *buffer = (char *)(buf);
+int recv_data_errorcode(int fd, void *buf, int buflen) {
+ char *buffer = (char *)(buf);
int size = buflen;
- int numbytes;
+ int numbytes;
while (size > 0) {
numbytes = recv(fd, buffer, size, 0);
if (numbytes==0)
inline int arrayLength(int *array) {
int i;
- for(i=0 ;array[i] != -1; i++)
+ for(i=0 ; array[i] != -1; i++)
;
return i;
}
int len;
char * node= getmemory(qnodesize);
int top=endoffsets[ntuples-1];
-
- if (node==NULL)
+
+ if (node==NULL)
return;
/* Set queue node values */
printf("Trans stats is on\n");
fflush(stdout);
#endif
-
+
//Initialize socket pool
transReadSockPool = createSockPool(transReadSockPool, DEFAULTSOCKPOOLSIZE);
transPrefetchSockPool = createSockPool(transPrefetchSockPool, DEFAULTSOCKPOOLSIZE);
transRequestSockPool = createSockPool(transRequestSockPool, DEFAULTSOCKPOOLSIZE);
-
+
dstmInit();
transInit();
-
+
fd=startlistening();
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
objstr_t *ptr;
ptr = store;
int success = 0;
-
+
while(ptr->next != NULL) {
/* check if store is empty */
if(((unsigned int)ptr->top - (unsigned int)ptr - sizeof(objstr_t) + size) <= ptr->size) {
success = 1;
return tmp;
} else {
- ptr = ptr-> next;
+ ptr = ptr->next;
}
}
-
+
if(success == 0) {
return NULL;
}
exit(0);
}
#endif
-
+
/* Initialize attributes for mutex */
pthread_mutexattr_init(&prefetchcache_mutex_attr);
pthread_mutexattr_settype(&prefetchcache_mutex_attr, PTHREAD_MUTEX_RECURSIVE_NP);
-
+
pthread_mutex_init(&prefetchcache_mutex, &prefetchcache_mutex_attr);
pthread_mutex_init(¬ifymutex, NULL);
pthread_mutex_init(&atomicObjLock, NULL);
printf("ERROR\n");
return; //Failure
}
-
+
//Initialize primary shared queue
queueInit();
//Initialize machine pile w/prefetch oids and offsets shared queue
mcpileqInit();
-
- //Create the primary prefetch thread
+
+ //Create the primary prefetch thread
int retval;
do {
retval=pthread_create(&tPrefetch, NULL, transPrefetch, NULL);
for(t = 0; t < NUM_THREADS; t++)
pthread_cancel(wthreads[t]);
#endif
-
+
return;
}
void randomdelay() {
struct timespec req;
time_t t;
-
+
t = time(NULL);
req.tv_sec = 0;
req.tv_nsec = (long)(1000000 + (t%10000000)); //1-11 msec
objheader_t *objcopy;
int size;
void *buf;
-
+
if(oid == 0) {
return NULL;
}
-
+
if((objheader = chashSearch(record->lookupTable, oid)) != NULL){
#ifdef TRANSSTATS
nchashSearch++;
memcpy(objcopy, objheader, size);
/* Insert into cache's lookup table */
STATUS(objcopy)=0;
- chashInsert(record->lookupTable, OID(objheader), objcopy);
+ chashInsert(record->lookupTable, OID(objheader), objcopy);
#ifdef COMPILER
return &objcopy[1];
#else
#endif
} else {
#ifdef CACHE
- if((tmp = (objheader_t *) prehashSearch(oid)) != NULL) {
+ if((tmp = (objheader_t *) prehashSearch(oid)) != NULL) {
#ifdef TRANSSTATS
nprehashSearch++;
#endif
objcopy = (objheader_t *) objstrAlloc(record->cache, size);
memcpy(objcopy, tmp, size);
/* Insert into cache's lookup table */
- chashInsert(record->lookupTable, OID(tmp), objcopy);
+ chashInsert(record->lookupTable, OID(tmp), objcopy);
#ifdef COMPILER
return &objcopy[1];
#else
#ifdef TRANSSTATS
nRemoteSend++;
#endif
- STATUS(objcopy)=0;
+ STATUS(objcopy)=0;
#ifdef COMPILER
return &objcopy[1];
#else
tmp->rcount = 1;
STATUS(tmp) = NEW;
chashInsert(record->lookupTable, OID(tmp), tmp);
-
+
#ifdef COMPILER
return &tmp[1]; //want space after object header
#else
chashlistnode_t * ptr = record->lookupTable->table;
/* Represents number of bins in the chash table */
unsigned int size = record->lookupTable->size;
-
+
for(i = 0; i < size ; i++) {
chashlistnode_t * curr = &ptr[i];
/* Inner loop to traverse the linked list of the cache lookupTable */
//if the first bin in hash table is empty
if(curr->key == 0)
break;
-
+
if ((headeraddr = (objheader_t *) chashSearch(record->lookupTable, curr->key)) == NULL) {
printf("Error: No such oid %s, %d\n", __FILE__, __LINE__);
return NULL;
}
-
+
//Get machine location for object id (and whether local or not)
if (STATUS(headeraddr) & NEW || (mhashSearch(curr->key) != NULL)) {
machinenum = myIpAddr;
printf("Error: No such machine %s, %d\n", __FILE__, __LINE__);
return NULL;
}
-
+
//Make machine groups
pile = pInsert(pile, headeraddr, machinenum, record->lookupTable->numelements);
curr = curr->next;
}
}
- return pile;
+ return pile;
}
/* This function initiates the transaction commit process
- * Spawns threads for each of the new connections with Participants
- * and creates new piles by calling the createPiles(),
- * Sends a transrequest() to each remote machines for objects found remotely
+ * Spawns threads for each of the new connections with Participants
+ * and creates new piles by calling the createPiles(),
+ * Sends a transrequest() to each remote machines for objects found remotely
* and calls handleLocalReq() to process objects found locally */
-int transCommit(transrecord_t *record) {
+int transCommit(transrecord_t *record) {
unsigned int tot_bytes_mod, *listmid;
plistnode_t *pile, *pile_ptr;
int i, j, rc, val;
local_thread_data_array_t *ltdata;
int firsttime=1;
- do {
+ do {
treplyctrl=0;
- trecvcount = 0;
- threadnum = 0;
+ trecvcount = 0;
+ threadnum = 0;
treplyretry = 0;
thread_data_array = NULL;
ltdata = NULL;
-
- /* Look through all the objects in the transaction record and make piles
+
+ /* Look through all the objects in the transaction record and make piles
* for each machine involved in the transaction*/
if (firsttime)
pile_ptr = pile = createPiles(record);
firsttime=0;
/* Create the packet to be sent in TRANS_REQUEST */
-
+
/* Count the number of participants */
pilecount = pCount(pile);
-
+
/* Create a list of machine ids(Participants) involved in transaction */
listmid = calloc(pilecount, sizeof(unsigned int));
pListMid(pile, listmid);
-
-
+
+
/* Initialize thread variables,
* Spawn a thread for each Participant involved in a transaction */
pthread_t thread[pilecount];
- pthread_attr_t attr;
+ pthread_attr_t attr;
pthread_cond_t tcond;
pthread_mutex_t tlock;
pthread_mutex_t tlshrd;
-
+
thread_data_array = (thread_data_array_t *) calloc(pilecount, sizeof(thread_data_array_t));
ltdata = calloc(1, sizeof(local_thread_data_array_t));
-
- thread_response_t rcvd_control_msg[pilecount]; /* Shared thread array that keeps track of responses of participants */
-
+
+ thread_response_t rcvd_control_msg[pilecount]; /* Shared thread array that keeps track of responses of participants */
+
/* Initialize and set thread detach attribute */
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
/* If local do not create any extra connection */
if(pile->mid != myIpAddr) { /* Not local */
do {
- rc = pthread_create(&thread[threadnum], &attr, transRequest, (void *) &thread_data_array[threadnum]);
+ rc = pthread_create(&thread[threadnum], &attr, transRequest, (void *) &thread_data_array[threadnum]);
} while(rc!=0);
if(rc) {
perror("Error in pthread create\n");
return 1;
}
}
-
- threadnum++;
+
+ threadnum++;
pile = pile->next;
}
/* Free attribute and wait for the other threads */
pthread_attr_destroy(&attr);
-
+
for (i = 0; i < threadnum; i++) {
rc = pthread_join(thread[i], NULL);
- if(rc)
- {
- printf("Error: return code from pthread_join() is %d\n", rc);
- pthread_cond_destroy(&tcond);
- pthread_mutex_destroy(&tlock);
- pDelete(pile_ptr);
- free(listmid);
- for (j = i; j < threadnum; j++) {
- free(thread_data_array[j].buffer);
- }
- return 1;
+ if(rc){
+ printf("Error: return code from pthread_join() is %d\n", rc);
+ pthread_cond_destroy(&tcond);
+ pthread_mutex_destroy(&tlock);
+ pDelete(pile_ptr);
+ free(listmid);
+ for (j = i; j < threadnum; j++) {
+ free(thread_data_array[j].buffer);
}
+ return 1;
+ }
free(thread_data_array[i].buffer);
}
- /* Free resources */
+ /* Free resources */
pthread_cond_destroy(&tcond);
pthread_mutex_destroy(&tlock);
free(listmid);
if (!treplyretry)
pDelete(pile_ptr);
-
+
/* wait a random amount of time before retrying to commit transaction*/
if(treplyretry) {
free(thread_data_array);
free(ltdata);
randomdelay();
}
-
+
/* Retry trans commit procedure during soft_abort case */
} while (treplyretry);
-
+
if(treplyctrl == TRANS_ABORT) {
#ifdef TRANSSTATS
numTransAbort++;
return 0;
}
-/* This function sends information involved in the transaction request
+/* This function sends information involved in the transaction request
* to participants and accepts a response from particpants.
- * It calls decideresponse() to decide on what control message
+ * It calls decideresponse() to decide on what control message
* to send next to participants and sends the message using sendResponse()*/
void *transRequest(void *threadarg) {
int sd, i, n;
int size=sizeof(unsigned int)*tdata->buffer->f.mcount;
send_data(sd, tdata->buffer->listmid, size);
}
-
+
/* Send oids and version number tuples for objects that are read */
{
int size=(sizeof(unsigned int)+sizeof(unsigned short))*tdata->buffer->f.numread;
send_data(sd, tdata->buffer->objread, size);
}
-
+
/* Send objects that are modified */
for(i = 0; i < tdata->buffer->f.nummod ; i++) {
int size;
size+=sizeof(objheader_t);
send_data(sd, headeraddr, size);
}
-
+
/* Read control message from Participant */
recv_data(sd, &control, sizeof(char));
/* Recv Objects if participant sends TRANS_DISAGREE */
while(length != 0) {
unsigned int oidToPrefetch;
objheader_t * header;
- header = (objheader_t *) (((char *)newAddr) + offset);
+ header = (objheader_t *)(((char *)newAddr) + offset);
oidToPrefetch = OID(header);
int size = 0;
GETSIZE(size, header);
//make an entry in prefetch hash table
void *oldptr;
if((oldptr = prehashSearch(oidToPrefetch)) != NULL) {
- prehashRemove(oidToPrefetch);
- prehashInsert(oidToPrefetch, header);
+ prehashRemove(oidToPrefetch);
+ prehashInsert(oidToPrefetch, header);
} else {
- prehashInsert(oidToPrefetch, header);
+ prehashInsert(oidToPrefetch, header);
}
length = length - size;
offset += size;
recvcontrol = control;
/* Update common data structure and increment count */
tdata->recvmsg[tdata->thread_id].rcv_status = recvcontrol;
-
+
/* Lock and update count */
/* Thread sleeps until all messages from pariticipants are received by coordinator */
pthread_mutex_lock(tdata->lock);
-
+
(*(tdata->count))++; /* keeps track of no of messages received by the coordinator */
-
+
/* Wake up the threads and invoke decideResponse (once) */
if(*(tdata->count) == tdata->buffer->f.mcount) {
- decideResponse(tdata);
+ decideResponse(tdata);
pthread_cond_broadcast(tdata->threshold);
} else {
pthread_cond_wait(tdata->threshold, tdata->lock);
/* clear objects from prefetch cache */
/*
- if(*(tdata->replyctrl) == TRANS_ABORT) {
- int i;
- for(i=0; i<tdata->buffer->f.nummod; i++) {
+ if(*(tdata->replyctrl) == TRANS_ABORT) {
+ int i;
+ for(i=0; i<tdata->buffer->f.nummod; i++) {
unsigned int oid = tdata->buffer->oidmod[i];
objheader_t *header;
if((header = prehashSearch(oid)) != NULL) {
prehashRemove(oid);
}
- }
- for(i=0; i<tdata->buffer->f.numread; i++) {
+ }
+ for(i=0; i<tdata->buffer->f.numread; i++) {
char *objread = tdata->buffer->objread;
unsigned int oid = *((unsigned int *)(objread+(sizeof(unsigned int) +
sizeof(unsigned short))*i));
if((header = prehashSearch(oid)) != NULL) {
prehashRemove(oid);
}
- }
- }
- */
+ }
+ }
+ */
#ifdef CACHE
if(*(tdata->replyctrl) == TRANS_COMMIT) {
int retval;
- /* Update prefetch cache */
+ /* Update prefetch cache */
if((retval = updatePrefetchCache(tdata)) != 0) {
printf("Error: %s() in updating prefetch cache %s, %d\n", __func__, __FILE__, __LINE__);
return;
/* Invalidate objects in other machine cache */
if(tdata->buffer->f.nummod > 0) {
if((retval = invalidateObj(tdata)) != 0) {
- printf("Error: %s() in invalidating Objects %s, %d\n", __func__, __FILE__, __LINE__);
- return;
+ printf("Error: %s() in invalidating Objects %s, %d\n", __func__, __FILE__, __LINE__);
+ return;
}
}
}
#endif
-
- /* Send the final response such as TRANS_COMMIT or TRANS_ABORT
+
+ /* Send the final response such as TRANS_COMMIT or TRANS_ABORT
* to all participants in their respective socket */
- if (sendResponse(tdata, sd) == 0) {
+ if (sendResponse(tdata, sd) == 0) {
printf("sendResponse returned error %s,%d\n", __FILE__, __LINE__);
pthread_exit(NULL);
}
-
- recv_data((int)sd, &control, sizeof(char));
-
+
+ recv_data((int)sd, &control, sizeof(char));
+
if(control == TRANS_UNSUCESSFUL) {
//printf("DEBUG-> TRANS_ABORTED\n");
} else if(control == TRANS_SUCESSFUL) {
pthread_exit(NULL);
}
-/* This function decides the reponse that needs to be sent to
+/* This function decides the reponse that needs to be sent to
* all Participant machines after the TRANS_REQUEST protocol */
void decideResponse(thread_data_array_t *tdata) {
char control;
int i, transagree = 0, transdisagree = 0, transsoftabort = 0; /* Counters to formulate decision of what
message to send */
-
+
for (i = 0 ; i < tdata->buffer->f.mcount; i++) {
control = tdata->recvmsg[i].rcv_status; /* tdata: keeps track of all participant responses
written onto the shared array */
switch(control) {
default:
printf("Participant sent unknown message in %s, %d\n", __FILE__, __LINE__);
+
/* treat as disagree, pass thru */
case TRANS_DISAGREE:
transdisagree++;
break;
-
+
case TRANS_AGREE:
transagree++;
break;
-
+
case TRANS_SOFT_ABORT:
transsoftabort++;
break;
}
}
-
+
if(transdisagree > 0) {
/* Send Abort */
*(tdata->replyctrl) = TRANS_ABORT;
evalPrefetch[i].operMode = 1;
#endif
#endif
- } else {
+ } else {
/* Send Abort in soft abort case followed by retry commiting transaction again*/
*(tdata->replyctrl) = TRANS_ABORT;
*(tdata->replyretry) = 1;
int n, size, sum, oidcount = 0, control;
char *ptr, retval = 0;
unsigned int *oidnotfound;
-
+
control = *(tdata->replyctrl);
send_data(sd, &control, sizeof(char));
-
+
//TODO read missing objects during object migration
/* If response is a soft abort due to missing objects at the
Participant's side */
-
+
/* If the decided response is TRANS_ABORT */
if(*(tdata->replyctrl) == TRANS_ABORT) {
retval = TRANS_ABORT;
- } else if(*(tdata->replyctrl) == TRANS_COMMIT) {
- /* If the decided response is TRANS_COMMIT */
+ } else if(*(tdata->replyctrl) == TRANS_COMMIT) {
+ /* If the decided response is TRANS_COMMIT */
retval = TRANS_COMMIT;
}
-
+
return retval;
}
/* This function opens a connection, places an object read request to
* the remote machine, reads the control message and object if
* available and copies the object and its header to the local
- * cache. */
+ * cache. */
void *getRemoteObj(transrecord_t *record, unsigned int mnum, unsigned int oid) {
int size, val;
char control;
objheader_t *h;
void *objcopy = NULL;
-
+
int sd = getSock2(transReadSockPool, mnum);
char readrequest[sizeof(char)+sizeof(unsigned int)];
readrequest[0] = READ_REQUEST;
*((unsigned int *)(&readrequest[1])) = oid;
send_data(sd, readrequest, sizeof(readrequest));
-
+
/* Read response from the Participant */
recv_data(sd, &control, sizeof(char));
-
+
if (control==OBJECT_NOT_FOUND) {
objcopy = NULL;
} else {
objcopy = objstrAlloc(record->cache, size);
recv_data(sd, objcopy, size);
/* Insert into cache's lookup table */
- chashInsert(record->lookupTable, oid, objcopy);
+ chashInsert(record->lookupTable, oid, objcopy);
}
-
+
return objcopy;
}
objheader_t *headptr;
localtdata = (local_thread_data_array_t *) threadarg;
-
+
/* Counters and arrays to formulate decision on control message to be sent */
oidnotfound = (unsigned int *) calloc((localtdata->tdata->buffer->f.numread + localtdata->tdata->buffer->f.nummod), sizeof(unsigned int));
oidlocked = (unsigned int *) calloc((localtdata->tdata->buffer->f.numread + localtdata->tdata->buffer->f.nummod), sizeof(unsigned int));
-
+
numread = localtdata->tdata->buffer->f.numread;
/* Process each oid in the machine pile/ group per thread */
for (i = 0; i < localtdata->tdata->buffer->f.numread + localtdata->tdata->buffer->f.nummod; i++) {
if (i < localtdata->tdata->buffer->f.numread) {
- int incr = sizeof(unsigned int) + sizeof(unsigned short);// Offset that points to next position in the objread array
+ int incr = sizeof(unsigned int) + sizeof(unsigned short); // Offset that points to next position in the objread array
incr *= i;
oid = *((unsigned int *)(((char *)localtdata->tdata->buffer->objread) + incr));
version = *((unsigned short *)(((char *)localtdata->tdata->buffer->objread) + incr + sizeof(unsigned int)));
int tmpsize;
headptr = (objheader_t *) chashSearch(localtdata->tdata->rec->lookupTable, localtdata->tdata->buffer->oidmod[i-numread]);
if (headptr == NULL) {
- printf("Error: handleLocalReq() returning NULL, no such oid %s, %d\n", __FILE__, __LINE__);
- return NULL;
+ printf("Error: handleLocalReq() returning NULL, no such oid %s, %d\n", __FILE__, __LINE__);
+ return NULL;
}
oid = OID(headptr);
version = headptr->version;
}
/* Check if object is still present in the machine since the beginning of TRANS_REQUEST */
-
+
/* Save the oids not found and number of oids not found for later use */
if ((mobj = mhashSearch(oid)) == NULL) { /* Obj not found */
/* Save the oids not found and number of oids not found for later use */
} else { /* If Obj found in machine (i.e. has not moved) */
/* Check if Obj is locked by any previous transaction */
if (test_and_set(STATUSPTR(mobj))) {
- if (version == ((objheader_t *)mobj)->version) { /* If locked then match versions */
- v_matchlock++;
- } else {/* If versions don't match ...HARD ABORT */
- v_nomatch++;
- /* Send TRANS_DISAGREE to Coordinator */
- localtdata->tdata->recvmsg[localtdata->tdata->thread_id].rcv_status = TRANS_DISAGREE;
- break;
- }
+ if (version == ((objheader_t *)mobj)->version) { /* If locked then match versions */
+ v_matchlock++;
+ } else { /* If versions don't match ...HARD ABORT */
+ v_nomatch++;
+ /* Send TRANS_DISAGREE to Coordinator */
+ localtdata->tdata->recvmsg[localtdata->tdata->thread_id].rcv_status = TRANS_DISAGREE;
+ break;
+ }
} else {
//we're locked
- /* Save all object oids that are locked on this machine during this transaction request call */
- oidlocked[numoidlocked] = OID(((objheader_t *)mobj));
- numoidlocked++;
- if (version == ((objheader_t *)mobj)->version) { /* Check if versions match */
- v_matchnolock++;
- } else { /* If versions don't match ...HARD ABORT */
- v_nomatch++;
- /* Send TRANS_DISAGREE to Coordinator */
- localtdata->tdata->recvmsg[localtdata->tdata->thread_id].rcv_status = TRANS_DISAGREE;
- break;
- }
+ /* Save all object oids that are locked on this machine during this transaction request call */
+ oidlocked[numoidlocked] = OID(((objheader_t *)mobj));
+ numoidlocked++;
+ if (version == ((objheader_t *)mobj)->version) { /* Check if versions match */
+ v_matchnolock++;
+ } else { /* If versions don't match ...HARD ABORT */
+ v_nomatch++;
+ /* Send TRANS_DISAGREE to Coordinator */
+ localtdata->tdata->recvmsg[localtdata->tdata->thread_id].rcv_status = TRANS_DISAGREE;
+ break;
+ }
}
}
} // End for
- /* Condition to send TRANS_AGREE */
+ /* Condition to send TRANS_AGREE */
if(v_matchnolock == localtdata->tdata->buffer->f.numread + localtdata->tdata->buffer->f.nummod) {
localtdata->tdata->recvmsg[localtdata->tdata->thread_id].rcv_status = TRANS_AGREE;
}
if((v_matchlock > 0 && v_nomatch == 0) || (numoidnotfound > 0 && v_nomatch == 0)) {
localtdata->tdata->recvmsg[localtdata->tdata->thread_id].rcv_status = TRANS_SOFT_ABORT;
}
-
+
/* Fill out the trans_commit_data_t data structure. This is required for a trans commit process
* if Participant receives a TRANS_COMMIT */
localtdata->transinfo->objlocked = oidlocked;
//Thread sleeps until all messages from pariticipants are received by coordinator
pthread_mutex_lock(localtdata->tdata->lock);
(*(localtdata->tdata->count))++; /* keeps track of no of messages received by the coordinator */
-
+
/* Wake up the threads and invoke decideResponse (once) */
if(*(localtdata->tdata->count) == localtdata->tdata->buffer->f.mcount) {
- decideResponse(localtdata->tdata);
+ decideResponse(localtdata->tdata);
pthread_cond_broadcast(localtdata->tdata->threshold);
} else {
pthread_cond_wait(localtdata->tdata->threshold, localtdata->tdata->lock);
if(localtdata->tdata->buffer->f.nummod > 0) {
int retval;
if((retval = invalidateObj(localtdata->tdata)) != 0) {
- printf("Error: %s() in invalidating Objects %s, %d\n", __func__, __FILE__, __LINE__);
- return;
+ printf("Error: %s() in invalidating Objects %s, %d\n", __func__, __FILE__, __LINE__);
+ return;
}
}
#endif
int i, numlocked;
unsigned int *objlocked;
void *header;
-
+
numlocked = localtdata->transinfo->numlocked;
objlocked = localtdata->transinfo->objlocked;
-
+
for (i = 0; i < numlocked; i++) {
if((header = mhashSearch(objlocked[i])) == NULL) {
printf("mhashsearch returns NULL at %s, %d\n", __FILE__, __LINE__);
int i, nummod, tmpsize, numcreated, numlocked;
unsigned int *oidmod, *oidcreated, *oidlocked;
void *ptrcreate;
-
+
nummod = localtdata->tdata->buffer->f.nummod;
oidmod = localtdata->tdata->buffer->oidmod;
numcreated = localtdata->tdata->buffer->f.numcreated;
}
UnLock(STATUSPTR(header));
}
-
+
return 0;
}
int siteid = *(GET_SITEID(ptr));
int ntuples = *(GET_NTUPLES(ptr));
unsigned int * oidarray = GET_PTR_OID(ptr);
- unsigned short * endoffsets = GET_PTR_EOFF(ptr, ntuples);
+ unsigned short * endoffsets = GET_PTR_EOFF(ptr, ntuples);
short * arryfields = GET_PTR_ARRYFLD(ptr, ntuples);
prefetchpile_t * head=NULL;
int numLocal = 0;
-
+
int i;
- for(i=0;i<ntuples; i++) {
- unsigned short baseindex=(i==0)?0:endoffsets[i-1];
+ for(i=0; i<ntuples; i++) {
+ unsigned short baseindex=(i==0) ? 0 : endoffsets[i-1];
unsigned short endindex=endoffsets[i];
unsigned int oid=oidarray[i];
int newbase;
if (oid==0)
continue;
//Look up fields locally
- for(newbase=baseindex;newbase<endindex;newbase++) {
+ for(newbase=baseindex; newbase<endindex; newbase++) {
if (!lookupObject(&oid, arryfields[newbase]))
break;
//Ended in a null pointer...
//Add to remote requests
machinenum=lhashSearch(oid);
insertPile(machinenum, oid, endindex-newbase, &arryfields[newbase], &head);
- tuple:
+tuple:
;
}
while(1) {
/* lock mutex of primary prefetch queue */
void *node=gettail();
- /* Check if the tuples are found locally, if yes then reduce them further*/
+ /* Check if the tuples are found locally, if yes then reduce them further*/
/* and group requests by remote machine ids by calling the makePreGroups() */
prefetchpile_t *pilehead = foundLocal(node);
if (pilehead!=NULL) {
- // Get sock from shared pool
+ // Get sock from shared pool
int sd = getSock2(transPrefetchSockPool, pilehead->mid);
-
+
/* Send Prefetch Request */
prefetchpile_t *ptr = pilehead;
while(ptr != NULL) {
sendPrefetchReq(ptr, sd);
- ptr = ptr->next;
+ ptr = ptr->next;
}
-
+
/* Release socket */
// freeSock(transPrefetchSockPool, pilehead->mid, sd);
-
+
/* Deallocated pilehead */
mcdealloc(pilehead);
}
void sendPrefetchReqnew(prefetchpile_t *mcpilenode, int sd) {
objpile_t *tmp;
-
+
int size=sizeof(char)+sizeof(int);
- for(tmp=mcpilenode->objpiles;tmp!=NULL;tmp=tmp->next) {
+ for(tmp=mcpilenode->objpiles; tmp!=NULL; tmp=tmp->next) {
size += sizeof(int) + sizeof(unsigned int) + sizeof(unsigned int) + ((tmp->numoffset) * sizeof(short));
}
-
+
char buft[size];
char *buf=buft;
*buf=TRANS_PREFETCH;
buf+=sizeof(char);
-
- for(tmp=mcpilenode->objpiles;tmp!=NULL;tmp=tmp->next) {
+
+ for(tmp=mcpilenode->objpiles; tmp!=NULL; tmp=tmp->next) {
int len = sizeof(int) + sizeof(unsigned int) + sizeof(unsigned int) + ((tmp->numoffset) * sizeof(short));
*((int*)buf)=len;
buf+=sizeof(int);
*((unsigned int *)buf)=tmp->oid;
buf+=sizeof(unsigned int);
- *((unsigned int *)(buf)) = myIpAddr;
+ *((unsigned int *)(buf)) = myIpAddr;
buf+=sizeof(unsigned int);
memcpy(buf, tmp->offset, tmp->numoffset*sizeof(short));
buf+=tmp->numoffset*sizeof(short);
int len, endpair;
char control;
objpile_t *tmp;
-
+
/* Send TRANS_PREFETCH control message */
control = TRANS_PREFETCH;
send_data(sd, &control, sizeof(char));
-
+
/* Send Oids and offsets in pairs */
tmp = mcpilenode->objpiles;
while(tmp != NULL) {
buf+=sizeof(int);
*((unsigned int *)buf) = tmp->oid;
buf+=sizeof(unsigned int);
- *((unsigned int *)buf) = myIpAddr;
+ *((unsigned int *)buf) = myIpAddr;
buf += sizeof(unsigned int);
memcpy(buf, tmp->offset, (tmp->numoffset)*sizeof(short));
send_data(sd, oidnoffset, len);
tmp = tmp->next;
}
-
+
/* Send a special char -1 to represent the end of sending oids + offset pair to remote machine */
endpair = -1;
send_data(sd, &endpair, sizeof(int));
-
+
return;
}
char control;
unsigned int oid;
void *modptr, *oldptr;
-
- recv_data((int)sd, &length, sizeof(int));
+
+ recv_data((int)sd, &length, sizeof(int));
size = length - sizeof(int);
char recvbuffer[size];
prehashRemove(oid);
prehashInsert(oid, modptr);
}
- } else {/* Else add the object ptr to hash table*/
+ } else { /* Else add the object ptr to hash table*/
prehashInsert(oid, modptr);
}
/* Lock the Prefetch Cache look up table*/
pthread_mutex_lock(&pflookup.lock);
- /* Broadcast signal on prefetch cache condition variable */
+ /* Broadcast signal on prefetch cache condition variable */
pthread_cond_broadcast(&pflookup.cond);
/* Unlock the Prefetch Cache look up table*/
pthread_mutex_unlock(&pflookup.lock);
} else {
printf("Error: in decoding the control value %d, %s, %d\n",control, __FILE__, __LINE__);
}
-
+
return 0;
}
#ifdef CACHE
if ((objheader = (objheader_t *) prehashSearch(oid)) == NULL) {
#endif
- unsigned int mid = lhashSearch(oid);
- int sd = getSock2(transReadSockPool, mid);
- char remotereadrequest[sizeof(char)+sizeof(unsigned int)];
- remotereadrequest[0] = READ_REQUEST;
- *((unsigned int *)(&remotereadrequest[1])) = oid;
- send_data(sd, remotereadrequest, sizeof(remotereadrequest));
-
- /* Read response from the Participant */
- char control;
- recv_data(sd, &control, sizeof(char));
-
- if (control==OBJECT_NOT_FOUND) {
- printf("Error: in %s() THIS SHOULD NOT HAPPEN.....EXIT PROGRAM\n", __func__);
- fflush(stdout);
- exit(-1);
- } else {
- /* Read object if found into local cache */
- int size;
- recv_data(sd, &size, sizeof(int));
+ unsigned int mid = lhashSearch(oid);
+ int sd = getSock2(transReadSockPool, mid);
+ char remotereadrequest[sizeof(char)+sizeof(unsigned int)];
+ remotereadrequest[0] = READ_REQUEST;
+ *((unsigned int *)(&remotereadrequest[1])) = oid;
+ send_data(sd, remotereadrequest, sizeof(remotereadrequest));
+
+ /* Read response from the Participant */
+ char control;
+ recv_data(sd, &control, sizeof(char));
+
+ if (control==OBJECT_NOT_FOUND) {
+ printf("Error: in %s() THIS SHOULD NOT HAPPEN.....EXIT PROGRAM\n", __func__);
+ fflush(stdout);
+ exit(-1);
+ } else {
+ /* Read object if found into local cache */
+ int size;
+ recv_data(sd, &size, sizeof(int));
#ifdef CACHE
- pthread_mutex_lock(&prefetchcache_mutex);
- if ((objheader = prefetchobjstrAlloc(size)) == NULL) {
- printf("Error: %s() objstrAlloc error for copying into prefetch cache %s, %d\n", __func__, __FILE__, __LINE__);
- pthread_exit(NULL);
- }
- pthread_mutex_unlock(&prefetchcache_mutex);
- recv_data(sd, objheader, size);
- prehashInsert(oid, objheader);
- return TYPE(objheader);
+ pthread_mutex_lock(&prefetchcache_mutex);
+ if ((objheader = prefetchobjstrAlloc(size)) == NULL) {
+ printf("Error: %s() objstrAlloc error for copying into prefetch cache %s, %d\n", __func__, __FILE__, __LINE__);
+ pthread_exit(NULL);
+ }
+ pthread_mutex_unlock(&prefetchcache_mutex);
+ recv_data(sd, objheader, size);
+ prehashInsert(oid, objheader);
+ return TYPE(objheader);
#else
- char *buffer;
- if((buffer = calloc(1, size)) == NULL) {
- printf("%s() Calloc Error %s at line %d\n", __func__, __FILE__, __LINE__);
- fflush(stdout);
- return 0;
- }
- recv_data(sd, buffer, size);
- objheader = (objheader_t *)buffer;
- unsigned short type = TYPE(objheader);
- free(buffer);
- return type;
-#endif
+ char *buffer;
+ if((buffer = calloc(1, size)) == NULL) {
+ printf("%s() Calloc Error %s at line %d\n", __func__, __FILE__, __LINE__);
+ fflush(stdout);
+ return 0;
}
-#ifdef CACHE
+ recv_data(sd, buffer, size);
+ objheader = (objheader_t *)buffer;
+ unsigned short type = TYPE(objheader);
+ free(buffer);
+ return type;
+#endif
}
+#ifdef CACHE
+ }
#endif
}
return TYPE(objheader);
}
-int startRemoteThread(unsigned int oid, unsigned int mid)
-{
- int sock;
- struct sockaddr_in remoteAddr;
- char msg[1 + sizeof(unsigned int)];
- int bytesSent;
- int status;
-
- if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
- {
- perror("startRemoteThread():socket()");
- return -1;
- }
+int startRemoteThread(unsigned int oid, unsigned int mid) {
+ int sock;
+ struct sockaddr_in remoteAddr;
+ char msg[1 + sizeof(unsigned int)];
+ int bytesSent;
+ int status;
- bzero(&remoteAddr, sizeof(remoteAddr));
- remoteAddr.sin_family = AF_INET;
- remoteAddr.sin_port = htons(LISTEN_PORT);
- remoteAddr.sin_addr.s_addr = htonl(mid);
-
- if (connect(sock, (struct sockaddr *)&remoteAddr, sizeof(remoteAddr)) < 0)
- {
- printf("startRemoteThread():error %d connecting to %s:%d\n", errno,
- inet_ntoa(remoteAddr.sin_addr), LISTEN_PORT);
- status = -1;
- }
- else
- {
- msg[0] = START_REMOTE_THREAD;
- *((unsigned int *) &msg[1]) = oid;
- send_data(sock, msg, 1 + sizeof(unsigned int));
- }
+ if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0){
+ perror("startRemoteThread():socket()");
+ return -1;
+ }
+
+ bzero(&remoteAddr, sizeof(remoteAddr));
+ remoteAddr.sin_family = AF_INET;
+ remoteAddr.sin_port = htons(LISTEN_PORT);
+ remoteAddr.sin_addr.s_addr = htonl(mid);
+
+ if (connect(sock, (struct sockaddr *)&remoteAddr, sizeof(remoteAddr)) < 0){
+ printf("startRemoteThread():error %d connecting to %s:%d\n", errno,
+ inet_ntoa(remoteAddr.sin_addr), LISTEN_PORT);
+ status = -1;
+ } else
+ {
+ msg[0] = START_REMOTE_THREAD;
+ *((unsigned int *) &msg[1]) = oid;
+ send_data(sock, msg, 1 + sizeof(unsigned int));
+ }
- close(sock);
- return status;
+ close(sock);
+ return status;
}
//TODO: when reusing oids, make sure they are not already in use!
static unsigned int id = 0xFFFFFFFF;
unsigned int getNewOID(void) {
- id += 2;
- if (id > oidMax || id < oidMin)
- {
- id = (oidMin | 1);
- }
- return id;
+ id += 2;
+ if (id > oidMax || id < oidMin){
+ id = (oidMin | 1);
+ }
+ return id;
}
-int processConfigFile()
-{
- FILE *configFile;
- const int maxLineLength = 200;
- char lineBuffer[maxLineLength];
- char *token;
- const char *delimiters = " \t\n";
- char *commentBegin;
- in_addr_t tmpAddr;
-
- configFile = fopen(CONFIG_FILENAME, "r");
- if (configFile == NULL)
- {
- printf("error opening %s:\n", CONFIG_FILENAME);
- perror("");
- return -1;
- }
-
- numHostsInSystem = 0;
- sizeOfHostArray = 8;
- hostIpAddrs = calloc(sizeOfHostArray, sizeof(unsigned int));
-
- while(fgets(lineBuffer, maxLineLength, configFile) != NULL)
- {
- commentBegin = strchr(lineBuffer, '#');
- if (commentBegin != NULL)
- *commentBegin = '\0';
- token = strtok(lineBuffer, delimiters);
- while (token != NULL)
- {
- tmpAddr = inet_addr(token);
- if ((int)tmpAddr == -1)
- {
- printf("error in %s: bad token:%s\n", CONFIG_FILENAME, token);
- fclose(configFile);
- return -1;
- }
- else
- addHost(htonl(tmpAddr));
- token = strtok(NULL, delimiters);
- }
- }
+int processConfigFile() {
+ FILE *configFile;
+ const int maxLineLength = 200;
+ char lineBuffer[maxLineLength];
+ char *token;
+ const char *delimiters = " \t\n";
+ char *commentBegin;
+ in_addr_t tmpAddr;
+
+ configFile = fopen(CONFIG_FILENAME, "r");
+ if (configFile == NULL){
+ printf("error opening %s:\n", CONFIG_FILENAME);
+ perror("");
+ return -1;
+ }
+ numHostsInSystem = 0;
+ sizeOfHostArray = 8;
+ hostIpAddrs = calloc(sizeOfHostArray, sizeof(unsigned int));
+
+ while(fgets(lineBuffer, maxLineLength, configFile) != NULL){
+ commentBegin = strchr(lineBuffer, '#');
+ if (commentBegin != NULL)
+ *commentBegin = '\0';
+ token = strtok(lineBuffer, delimiters);
+ while (token != NULL){
+ tmpAddr = inet_addr(token);
+ if ((int)tmpAddr == -1){
+ printf("error in %s: bad token:%s\n", CONFIG_FILENAME, token);
fclose(configFile);
-
- if (numHostsInSystem < 1)
- {
- printf("error in %s: no IP Adresses found\n", CONFIG_FILENAME);
- return -1;
- }
+ return -1;
+ } else
+ addHost(htonl(tmpAddr));
+ token = strtok(NULL, delimiters);
+ }
+ }
+
+ fclose(configFile);
+
+ if (numHostsInSystem < 1){
+ printf("error in %s: no IP Adresses found\n", CONFIG_FILENAME);
+ return -1;
+ }
#ifdef MAC
- myIpAddr = getMyIpAddr("en1");
+ myIpAddr = getMyIpAddr("en1");
#else
- myIpAddr = getMyIpAddr("eth0");
+ myIpAddr = getMyIpAddr("eth0");
#endif
- myIndexInHostArray = findHost(myIpAddr);
- if (myIndexInHostArray == -1)
- {
- printf("error in %s: IP Address of eth0 not found\n", CONFIG_FILENAME);
- return -1;
- }
- oidsPerBlock = (0xFFFFFFFF / numHostsInSystem) + 1;
- oidMin = oidsPerBlock * myIndexInHostArray;
- if (myIndexInHostArray == numHostsInSystem - 1)
- oidMax = 0xFFFFFFFF;
- else
- oidMax = oidsPerBlock * (myIndexInHostArray + 1) - 1;
+ myIndexInHostArray = findHost(myIpAddr);
+ if (myIndexInHostArray == -1){
+ printf("error in %s: IP Address of eth0 not found\n", CONFIG_FILENAME);
+ return -1;
+ }
+ oidsPerBlock = (0xFFFFFFFF / numHostsInSystem) + 1;
+ oidMin = oidsPerBlock * myIndexInHostArray;
+ if (myIndexInHostArray == numHostsInSystem - 1)
+ oidMax = 0xFFFFFFFF;
+ else
+ oidMax = oidsPerBlock * (myIndexInHostArray + 1) - 1;
- return 0;
+ return 0;
}
-void addHost(unsigned int hostIp)
-{
- unsigned int *tmpArray;
+void addHost(unsigned int hostIp) {
+ unsigned int *tmpArray;
- if (findHost(hostIp) != -1)
- return;
+ if (findHost(hostIp) != -1)
+ return;
- if (numHostsInSystem == sizeOfHostArray)
- {
- tmpArray = calloc(sizeOfHostArray * 2, sizeof(unsigned int));
- memcpy(tmpArray, hostIpAddrs, sizeof(unsigned int) * numHostsInSystem);
- free(hostIpAddrs);
- hostIpAddrs = tmpArray;
- }
+ if (numHostsInSystem == sizeOfHostArray){
+ tmpArray = calloc(sizeOfHostArray * 2, sizeof(unsigned int));
+ memcpy(tmpArray, hostIpAddrs, sizeof(unsigned int) * numHostsInSystem);
+ free(hostIpAddrs);
+ hostIpAddrs = tmpArray;
+ }
- hostIpAddrs[numHostsInSystem++] = hostIp;
+ hostIpAddrs[numHostsInSystem++] = hostIp;
- return;
+ return;
}
-int findHost(unsigned int hostIp)
-{
- int i;
- for (i = 0; i < numHostsInSystem; i++)
- if (hostIpAddrs[i] == hostIp)
- return i;
+int findHost(unsigned int hostIp) {
+ int i;
+ for (i = 0; i < numHostsInSystem; i++)
+ if (hostIpAddrs[i] == hostIp)
+ return i;
- //not found
- return -1;
+ //not found
+ return -1;
}
-/* This function sends notification request per thread waiting on object(s) whose version
+/* This function sends notification request per thread waiting on object(s) whose version
* changes */
int reqNotify(unsigned int *oidarry, unsigned short *versionarry, unsigned int numoid) {
int sock,i;
pthread_mutex_t threadnotify = PTHREAD_MUTEX_INITIALIZER; //Lock and condition var for threadjoin and notification
pthread_cond_t threadcond = PTHREAD_COND_INITIALIZER;
notifydata_t *ndata;
-
+
oid = oidarry[0];
if((mid = lhashSearch(oid)) == 0) {
printf("Error: %s() No such machine found for oid =%x\n",__func__, oid);
return;
}
-
+
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0){
perror("reqNotify():socket()");
return -1;
}
-
+
bzero(&remoteAddr, sizeof(remoteAddr));
remoteAddr.sin_family = AF_INET;
remoteAddr.sin_port = htons(LISTEN_PORT);
remoteAddr.sin_addr.s_addr = htonl(mid);
-
+
/* Generate unique threadid */
threadid++;
-
+
/* Save threadid, numoid, oidarray, versionarray, pthread_cond_variable for later processing */
if((ndata = calloc(1, sizeof(notifydata_t))) == NULL) {
printf("Calloc Error %s, %d\n", __FILE__, __LINE__);
if((status = notifyhashInsert(threadid, ndata)) != 0) {
printf("reqNotify(): Insert into notify hash table not successful %s, %d\n", __FILE__, __LINE__);
free(ndata);
- return -1;
+ return -1;
}
-
- /* Send number of oids, oidarry, version array, machine id and threadid */
+
+ /* Send number of oids, oidarry, version array, machine id and threadid */
if (connect(sock, (struct sockaddr *)&remoteAddr, sizeof(remoteAddr)) < 0){
printf("reqNotify():error %d connecting to %s:%d\n", errno,
- inet_ntoa(remoteAddr.sin_addr), LISTEN_PORT);
+ inet_ntoa(remoteAddr.sin_addr), LISTEN_PORT);
free(ndata);
return -1;
} else {
i++;
}
}
-
+
/* Send array of version */
{
i = 0;
i++;
}
}
-
+
*((unsigned int *)(&msg[1] + size)) = myIpAddr;
size += sizeof(unsigned int);
*((unsigned int *)(&msg[1] + size)) = threadid;
pthread_cond_wait(&(ndata->threadcond), &(ndata->threadnotify));
pthread_mutex_unlock(&(ndata->threadnotify));
}
-
+
pthread_cond_destroy(&threadcond);
pthread_mutex_destroy(&threadnotify);
free(ndata);
}
void threadNotify(unsigned int oid, unsigned short version, unsigned int tid) {
- notifydata_t *ndata;
- int i, objIsFound = 0, index;
- void *ptr;
-
- //Look up the tid and call the corresponding pthread_cond_signal
- if((ndata = notifyhashSearch(tid)) == NULL) {
- printf("threadnotify(): No such threadid is present %s, %d\n", __FILE__, __LINE__);
- return;
- } else {
- for(i = 0; i < ndata->numoid; i++) {
- if(ndata->oidarry[i] == oid){
- objIsFound = 1;
- index = i;
- }
- }
- if(objIsFound == 0){
- printf("threadNotify(): Oid not found %s, %d\n", __FILE__, __LINE__);
- return;
- } else {
- if(version <= ndata->versionarry[index]){
- printf("threadNotify(): New version %d has not changed since last version for oid = %d, %s, %d\n", version, oid, __FILE__, __LINE__);
- return;
- } else {
+ notifydata_t *ndata;
+ int i, objIsFound = 0, index;
+ void *ptr;
+
+ //Look up the tid and call the corresponding pthread_cond_signal
+ if((ndata = notifyhashSearch(tid)) == NULL) {
+ printf("threadnotify(): No such threadid is present %s, %d\n", __FILE__, __LINE__);
+ return;
+ } else {
+ for(i = 0; i < ndata->numoid; i++) {
+ if(ndata->oidarry[i] == oid){
+ objIsFound = 1;
+ index = i;
+ }
+ }
+ if(objIsFound == 0){
+ printf("threadNotify(): Oid not found %s, %d\n", __FILE__, __LINE__);
+ return;
+ } else {
+ if(version <= ndata->versionarry[index]){
+ printf("threadNotify(): New version %d has not changed since last version for oid = %d, %s, %d\n", version, oid, __FILE__, __LINE__);
+ return;
+ } else {
#ifdef CACHE
- /* Clear from prefetch cache and free thread related data structure */
- if((ptr = prehashSearch(oid)) != NULL) {
- prehashRemove(oid);
- }
-#endif
- pthread_cond_signal(&(ndata->threadcond));
- }
- }
+ /* Clear from prefetch cache and free thread related data structure */
+ if((ptr = prehashSearch(oid)) != NULL) {
+ prehashRemove(oid);
}
- return;
+#endif
+ pthread_cond_signal(&(ndata->threadcond));
+ }
+ }
+ }
+ return;
}
int notifyAll(threadlist_t **head, unsigned int oid, unsigned int version) {
struct sockaddr_in remoteAddr;
char msg[1 + sizeof(unsigned short) + 2*sizeof(unsigned int)];
int sock, status, size, bytesSent;
-
+
while(*head != NULL) {
ptr = *head;
- mid = ptr->mid;
+ mid = ptr->mid;
//create a socket connection to that machine
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0){
perror("notifyAll():socket()");
return -1;
}
-
+
bzero(&remoteAddr, sizeof(remoteAddr));
remoteAddr.sin_family = AF_INET;
remoteAddr.sin_port = htons(LISTEN_PORT);
//send Thread Notify response and threadid to that machine
if (connect(sock, (struct sockaddr *)&remoteAddr, sizeof(remoteAddr)) < 0){
printf("notifyAll():error %d connecting to %s:%d\n", errno,
- inet_ntoa(remoteAddr.sin_addr), LISTEN_PORT);
+ inet_ntoa(remoteAddr.sin_addr), LISTEN_PORT);
fflush(stdout);
status = -1;
} else {
*((unsigned short *)(&msg[1]+ size)) = version;
size+= sizeof(unsigned short);
*((unsigned int *)(&msg[1]+ size)) = ptr->threadid;
-
+
size = 1 + 2*sizeof(unsigned int) + sizeof(unsigned short);
send_data(sock, msg, size);
}
free(trans);
}
-/* This function inserts necessary information into
+/* This function inserts necessary information into
* a machine pile data structure */
plistnode_t *pInsert(plistnode_t *pile, objheader_t *headeraddr, unsigned int mid, int num_objs) {
plistnode_t *ptr, *tmp;
int tmpsize;
if (STATUS(headeraddr) & NEW) {
- tmp->oidcreated[tmp->numcreated] = OID(headeraddr);
- tmp->numcreated++;
- GETSIZE(tmpsize, headeraddr);
- tmp->sum_bytes += sizeof(objheader_t) + tmpsize;
- }else if (STATUS(headeraddr) & DIRTY) {
- tmp->oidmod[tmp->nummod] = OID(headeraddr);
- tmp->nummod++;
- GETSIZE(tmpsize, headeraddr);
- tmp->sum_bytes += sizeof(objheader_t) + tmpsize;
+ tmp->oidcreated[tmp->numcreated] = OID(headeraddr);
+ tmp->numcreated++;
+ GETSIZE(tmpsize, headeraddr);
+ tmp->sum_bytes += sizeof(objheader_t) + tmpsize;
+ } else if (STATUS(headeraddr) & DIRTY) {
+ tmp->oidmod[tmp->nummod] = OID(headeraddr);
+ tmp->nummod++;
+ GETSIZE(tmpsize, headeraddr);
+ tmp->sum_bytes += sizeof(objheader_t) + tmpsize;
} else {
- offset = (sizeof(unsigned int) + sizeof(short)) * tmp->numread;
- *((unsigned int *)(((char *)tmp->objread) + offset))=OID(headeraddr);
- offset += sizeof(unsigned int);
- *((short *)(((char *)tmp->objread) + offset)) = headeraddr->version;
- tmp->numread ++;
+ offset = (sizeof(unsigned int) + sizeof(short)) * tmp->numread;
+ *((unsigned int *)(((char *)tmp->objread) + offset))=OID(headeraddr);
+ offset += sizeof(unsigned int);
+ *((short *)(((char *)tmp->objread) + offset)) = headeraddr->version;
+ tmp->numread++;
}
found = 1;
break;
}
tmp = tmp->next;
}
- //Add oid for any new machine
+ //Add oid for any new machine
if (!found) {
int tmpsize;
if((ptr = pCreate(num_objs)) == NULL) {
ptr->mid = mid;
if (STATUS(headeraddr) & NEW) {
ptr->oidcreated[ptr->numcreated] = OID(headeraddr);
- ptr->numcreated ++;
+ ptr->numcreated++;
GETSIZE(tmpsize, headeraddr);
ptr->sum_bytes += sizeof(objheader_t) + tmpsize;
} else if (STATUS(headeraddr) & DIRTY) {
ptr->oidmod[ptr->nummod] = OID(headeraddr);
- ptr->nummod ++;
+ ptr->nummod++;
GETSIZE(tmpsize, headeraddr);
ptr->sum_bytes += sizeof(objheader_t) + tmpsize;
} else {
*((unsigned int *)ptr->objread)=OID(headeraddr);
offset = sizeof(unsigned int);
*((short *)(((char *)ptr->objread) + offset)) = headeraddr->version;
- ptr->numread ++;
+ ptr->numread++;
}
ptr->next = pile;
pile = ptr;
}
-
+
/* Clear Flags */
STATUS(headeraddr) =0;
-
+
return pile;
}
projects / IRC.git / blobdiff