unsigned int TransferData(sci_map_t remoteMap,
volatile unsigned int *remoteSegmentAddr1,
volatile unsigned int *remoteSegmentAddr2,
unsigned int segmentSize)
{
volatile unsigned int *remoteBuffer1;
volatile unsigned int *remoteBuffer;
volatile unsigned int *remoteBuffer2;
static int times = 0;
sci_sequence_t sequence;
sci_error_t error;
unsigned int nostores;
unsigned int j;
sci_sequence_status_t sequenceStatus;
remoteBuffer1 = (volatile unsigned int *)remoteSegmentAddr1;
remoteBuffer2 = (volatile unsigned int *)remoteSegmentAddr2;
remoteBuffer=remoteBuffer1;
/* 4-byte test only */
nostores = (segmentSize) / sizeof(unsigned int);
/* Create a sequence for data error checking */
SCICreateMapSequence(remoteMapOne,&sequence,NO_FLAGS,&error);
if (error != SCI_ERR_OK) {
fprintf(stderr,"SCICreateMapSequence failed - Error code 0x%x\n",error);
return error;
}
/* Fill in the data into a local buffer */
error = SendInterrupt(sdOne,localAdapterNo,localNodeId1,remoteNodeId1, DATA_TRANSFER_READY);
error = FillSegmentWithData(segmentSize, 0);
tryagain:
PrintServerData(localbufferPtr);
fprintf(stderr,"After recover \n");
while(1){
//data=0;
if (error != SCI_ERR_OK) {
/*
* Unable to create local buffer - Insufficient memory available
*/
printf( "Unable to create local buffer - Insufficient memory available\n" );
return error;
}
do {
/* Start data error checking */
sequenceStatus = SCIStartSequence(sequence,NO_FLAGS,&error);
} while (sequenceStatus != SCI_SEQ_OK) ;
/* Transfer data to remote node */
for (j=0;j<nostores;j++) {
remoteBuffer[j] = localbufferPtr[j];
}
/* Check for error after data transfer */
sequenceStatus = SCICheckSequence(sequence,NO_FLAGS,&error);
if (sequenceStatus != SCI_SEQ_OK) {
fprintf(stderr,"Data transfer failed\n");
if(times==0) {
error = FillSegmentWithData(segmentSize, 1);
SCICreateMapSequence(remoteMapTwo,&sequence,NO_FLAGS,&error);
if (error != SCI_ERR_OK) {
fprintf(stderr,"SCICreateMapSequence failed - Error code 0x%x\n",error);
return error;
return SCI_ERR_TRANSFER_FAILED;
}
}
else
{
error = FillSegmentWithData(segmentSize, 0);
/* Create a sequence for data error checking */
SCICreateMapSequence(remoteMapOne,&sequence,NO_FLAGS,&error);
if (error != SCI_ERR_OK) {
fprintf(stderr,"SCICreateMapSequence failed - Error code 0x%x\n",error);
return error;
return SCI_ERR_TRANSFER_FAILED;
}
}
fprintf(stderr,"Recovery \n");
if(times==0)
remoteBuffer=remoteBuffer2;
else
remoteBuffer=remoteBuffer1;
times++;
printf("remotebuffer %p times %d\n", remoteBuffer, times);
goto tryagain;
}
int timeout=0;
// error = SendInterrupt(sdOne,localAdapterNo,localNodeId1,remoteNodeId1, DATA_TRANSFER_READY);
// NdbSleep_MilliSleep(100);
//error = ReceiveInterrupt(sdOne,localAdapterNo,localNodeId1,DATA_TRANSFER_READY, timeout);
}
/* Remove the Sequence */
SCIRemoveSequence(sequence,NO_FLAGS, &error);
if (error != SCI_ERR_OK) {
fprintf(stderr,"SCIRemoveSequence failed - Error code 0x%x\n",error);
return error;
}
return SCI_ERR_OK;
}
unsigned int ShmemClientNode(void)
{
volatile unsigned int *remoteMapAddr1;
volatile unsigned int *remoteMapAddr2;
printf("here?\n");
/* Create a segmentId */
remoteSegmentId1 = 1;//(remoteNodeId1 << 16) | localNodeId1;
/* Connect to remote segment */
printf("Connect to remote segment .... \n");
printf("segid = %d node %d \n",remoteSegmentId1, remoteNodeId1 );
do {
SCIConnectSegment(sdOne,
&remoteSegmentOne,
remoteNodeId1,
remoteSegmentId1,
localAdapterNo,
NO_CALLBACK,
NULL,
SCI_INFINITE_TIMEOUT,
NO_FLAGS,
&error);
} while (error != SCI_ERR_OK);
printf("connected\n");
// remoteSegmentId2 = (remoteNodeId2 << 16) | localNodeId2;
// printf("segid = %d\n",remoteSegmentId2 );
printf("segid = %d node %d \n",remoteSegmentId1, remoteNodeId1 );
do {
SCIConnectSegment(sdTwo,
&remoteSegmentTwo,
remoteNodeId2,
remoteSegmentId1,
standbyAdapterNo,
NO_CALLBACK,
NULL,
SCI_INFINITE_TIMEOUT,
NO_FLAGS,
&error);
} while (error != SCI_ERR_OK);
printf("connected 3\n");
printf("Remote segment (id=0x%x) is connected.\n", remoteSegmentId2);
/* Map remote segment to user space */
remoteMapAddr1 = (unsigned int*)SCIMapRemoteSegment(remoteSegmentOne,&remoteMapOne,offset,segmentSize,NULL,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("Remote segment (id=0x%x) is mapped to user space @ 0x%x. \n", remoteSegmentId1, remoteMapAddr1);
} else {
fprintf(stderr,"SCIMapRemoteSegment failed - Error code 0x%x\n",error);
return 0;
}
remoteMapAddr2 = (unsigned int *)SCIMapRemoteSegment(remoteSegmentTwo,&remoteMapTwo,offset,segmentSize,NULL,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("Remote segment (id=0x%x) is mapped to user space @ 0x%x. \n", remoteSegmentId2, remoteMapAddr2);
} else {
fprintf(stderr,"SCIMapRemoteSegment failed - Error code 0x%x\n",error);
return 0;
}
/* Start data transfer and error checking */
error = (sci_error_t)TransferData(remoteMapOne,remoteMapAddr1, remoteMapAddr2,segmentSize);
if (error == SCI_ERR_OK) {
printf("Data transfer done!\n\n");
} else {
fprintf(stderr,"Data transfer failed - Error code 0x%x\n\n",error);
return 0;
}
/* Send an interrupt to remote node telling that the data transfer is ready */
error = SendInterrupt(sdOne,localAdapterNo,localNodeId1,remoteNodeId1, DATA_TRANSFER_READY);
if (error == SCI_ERR_OK) {
printf("\nInterrupt message sent to remote node\n");
} else {
printf("\nInterrupt synchronization failed\n");
return 0;
}
PrintClientData();
/* Unmap remote segment */
SCIUnmapSegment(remoteMapOne,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("The remote segment is unmapped\n");
} else {
fprintf(stderr,"SCIUnmapSegment failed - Error code 0x%x\n",error);
return 0;
}
SCIUnmapSegment(remoteMapTwo,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("The remote segment is unmapped\n");
} else {
fprintf(stderr,"SCIUnmapSegment failed - Error code 0x%x\n",error);
return 0;
}
/* Disconnect segment */
SCIDisconnectSegment(remoteSegmentOne,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("The segment is disconnected\n");
} else {
fprintf(stderr,"SCIDisconnectSegment failed - Error code 0x%x\n",error);
return 0;
}
SCIDisconnectSegment(remoteSegmentTwo,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("The segment is disconnected\n");
} else {
fprintf(stderr,"SCIDisconnectSegment failed - Error code 0x%x\n",error);
return 0;
}
return 1;
}
