unsigned int ShmemServerNode(void)
{
unsigned int *localMapAddr;
/* Create a segmentId */
localSegmentId =1;// (localNodeId1 << 16) | remoteNodeId1;
/* Create local segment */
SCICreateSegment(sdOne,&localSegmentOne,localSegmentId, segmentSize, NO_CALLBACK, NULL, NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("Local segment (id=%d, size=%d) is created. \n", localSegmentId, segmentSize);
} else {
fprintf(stderr,"SCICreateSegment failed - Error code 0x%x\n",error);
return 0;
}
//localSegmentId = (localNodeId2 << 16) | remoteNodeId2;
/*
SCICreateSegment(sdTwo,&localSegmentTwo,localSegmentId+1, segmentSize, NO_CALLBACK, NULL, NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("Local segment (id=%d, size=%d) is created (2). \n", localSegmentId, segmentSize);
} else {
fprintf(stderr,"SCICreateSegment failed - Error code 0x%x\n",error);
return 0;
}
printf("segment one %p segment 2 %p\n", localSegmentOne, localSegmentTwo);
*/
/* Prepare the segment */
SCIPrepareSegment(localSegmentOne,localAdapterNo,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("Local segment (id=%d, size=%d) is prepared. \n", localSegmentId, segmentSize);
} else {
fprintf(stderr,"SCIPrepareSegment failed - Error code 0x%x\n",error);
return 0;
}
/* Prepare the segment */
SCIPrepareSegment(localSegmentOne,standbyAdapterNo,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("Local segment (id=%d, size=%d) is created. \n", localSegmentId, segmentSize);
} else {
fprintf(stderr,"SCIPrepareSegment failed - Error code 0x%x\n",error);
return 0;
}
/* Map local segment to user space */
localMapAddr = (unsigned int *)SCIMapLocalSegment(localSegmentOne,&localMapOne, offset,segmentSize, NULL,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("Local segment (id=0x%x) is mapped to user space @ 0x%x.\n", localSegmentId, localMapAddr);
} else {
fprintf(stderr,"SCIMapLocalSegment failed - Error code 0x%x\n",error);
return 0;
}
/* Map local segment to user space */
/*
localMapAddr = (unsigned int *)SCIMapLocalSegment(localSegmentTwo,&localMapTwo, offset,segmentSize, NULL,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("Local segment (id=0x%x) is mapped to user space @ 0x%x.\n", localSegmentId, localMapAddr);
printf("Local segment (id=%d) is mapped to user space.\n", localSegmentId);
} else {
fprintf(stderr,"SCIMapLocalSegment failed - Error code 0x%x\n",error);
return 0;
}
*/
/* Set the segment available */
SCISetSegmentAvailable(localSegmentOne, localAdapterNo, NO_FLAGS, &error);
if (error == SCI_ERR_OK) {
printf("Local segment (id=0x%x) is available for remote connections. \n", localSegmentId);
} else {
fprintf(stderr,"SCISetSegmentAvailable failed - Error code 0x%x\n",error);
return 0;
}
SCISetSegmentAvailable(localSegmentOne, standbyAdapterNo, NO_FLAGS, &error);
if (error == SCI_ERR_OK) {
printf("Local segment (id=0x%x) is available for remote connections. \n", localSegmentId);
} else {
fprintf(stderr,"SCISetSegmentAvailable failed - Error code 0x%x\n",error);
return 0;
}
int timeout=0;
error = ReceiveInterrupt(sdOne,localAdapterNo,localNodeId1,DATA_TRANSFER_READY, timeout);
if (error == SCI_ERR_OK) {
printf("\nThe data transfer is ready\n");
} else {
printf("\nInterrupt synchronization failed\n");
return 0;
}
again:
// printf("Wait for the shared memory data transfer .....");
/* Wait for interrupt signal telling that block transfer is ready */
//printf("\nData transfer done!\n");
//PrintClientData()
PrintServerData(localMapAddr);
/*Uint32 micros;
Uint32 micros2;
NDB_TICKS secs;
NdbTick_CurrentMicrosecond(&secs, µs);
error = SendInterrupt(sdOne,localAdapterNo,localNodeId1,remoteNodeId1, DATA_TRANSFER_READY);
NdbTick_CurrentMicrosecond(&secs, µs2);
printf("TIME ELAPSED %d \n", micros2-micros);
// NdbSleep_MilliSleep(100);
*/
goto again;
/* Unmap local segment */
SCIUnmapSegment(localMapTwo,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("The local segment is unmapped\n");
} else {
fprintf(stderr,"SCIUnmapSegment failed - Error code 0x%x\n",error);
return 0;
}
/* Unmap local segment */
SCIUnmapSegment(localMapOne,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("The local segment is unmapped\n");
} else {
fprintf(stderr,"SCIUnmapSegment failed - Error code 0x%x\n",error);
return 0;
}
/* Remove local segment */
SCIRemoveSegment(localSegmentOne,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("The local segment is removed\n");
} else {
fprintf(stderr,"SCIRemoveSegment failed - Error code 0x%x\n",error);
return 0;
}
/* Remove local segment */
SCIRemoveSegment(localSegmentTwo,NO_FLAGS,&error);
if (error == SCI_ERR_OK) {
printf("The local segment is removed\n");
} else {
fprintf(stderr,"SCIRemoveSegment failed - Error code 0x%x\n",error);
return 0;
}
return 1;
}
sci_error_t SCI_Transporter::initLocalSegment() {
DBUG_ENTER("SCI_Transporter::initLocalSegment");
Uint32 segmentSize = m_BufferSize;
Uint32 offset = 0;
sci_error_t err;
if(!m_sciinit) {
for(Uint32 i=0; i<m_adapters ; i++) {
SCIOpen(&(sciAdapters[i].scidesc), FLAGS, &err);
sciAdapters[i].localSciNodeId=getLocalNodeId(i);
DBUG_PRINT("info", ("SCInode iD %d adapter %d\n",
sciAdapters[i].localSciNodeId, i));
if(err != SCI_ERR_OK) {
DBUG_PRINT("error",
("Cannot open an SCI virtual device. Error code 0x%x",
err));
DBUG_RETURN(err);
}
}
}
m_sciinit=true;
SCICreateSegment(sciAdapters[0].scidesc,
&(m_SourceSegm[0].localHandle),
hostSegmentId(localNodeId, remoteNodeId),
segmentSize,
0,
0,
0,
&err);
if(err != SCI_ERR_OK) {
DBUG_PRINT("error", ("Error creating segment, err = 0x%x", err));
DBUG_RETURN(err);
} else {
DBUG_PRINT("info", ("created segment id : %d",
hostSegmentId(localNodeId, remoteNodeId)));
}
/** Prepare the segment*/
for(Uint32 i=0; i < m_adapters; i++) {
SCIPrepareSegment((m_SourceSegm[0].localHandle),
i,
FLAGS,
&err);
if(err != SCI_ERR_OK) {
DBUG_PRINT("error",
("Local Segment is not accessible by an SCI adapter. Error code 0x%x\n",
err));
DBUG_RETURN(err);
}
}
m_SourceSegm[0].mappedMemory =
SCIMapLocalSegment((m_SourceSegm[0].localHandle),
&(m_SourceSegm[0].lhm[0].map),
offset,
segmentSize,
NULL,
FLAGS,
&err);
if(err != SCI_ERR_OK) {
DBUG_PRINT("error", ("Cannot map area of size %d. Error code 0x%x",
segmentSize,err));
doDisconnect();
DBUG_RETURN(err);
}
/** Make the local segment available*/
for(Uint32 i=0; i < m_adapters; i++) {
SCISetSegmentAvailable((m_SourceSegm[0].localHandle),
i,
FLAGS,
&err);
if(err != SCI_ERR_OK) {
DBUG_PRINT("error",
("Local Segment is not available for remote connections. Error code 0x%x\n",
err));
DBUG_RETURN(err);
}
}
setupLocalSegment();
DBUG_RETURN(err);
} // initLocalSegment()
sci_error_t sci_segment_create_and_export(sci_desc_t v_device,
sci_local_segment_t *local_segment,
sci_map_t *local_map,
volatile int **local_address,
unsigned int mem_id,
unsigned int mem_size,
struct client *cl) {
sci_error_t error;
// allocation du segment controle et du segment donnees
SCICreateSegment(v_device,
local_segment,
mem_id,
mem_size,
local_segment_cb,
(void*)cl,
SCI_FLAG_USE_CALLBACK,
&error);
if (error != SCI_ERR_OK) {
log_message("erreur SCICreateSegment local_ctl_segment\n");
log_message("%s",Sci_error(error));
return error;
}
log_message("creating segment %d size %d\n",
mem_id, mem_size);
/* mapping des segments locaux et reception des adresses */
*local_address =
(int*)SCIMapLocalSegment(*local_segment, local_map,
0 /* offset */, mem_size,
0 /* address hint */, NO_FLAGS, &error);
if (error != SCI_ERR_OK) {
log_message("erreur SCIMapLocalSegment\n");
log_message("%s",Sci_error(error));
return error;
}
log_message("mapping segment %d size %d l_address=%p\n",
mem_id, mem_size,*local_address);
/* export local segment */
SCIPrepareSegment(*local_segment, ADAPTER_NO, NO_FLAGS, &error);
if (error != SCI_ERR_OK) {
log_message("erreur SCIPrepareSegment\n");
log_message("%s\n",Sci_error(error));
return error;
}
SCISetSegmentAvailable(*local_segment, ADAPTER_NO, NO_FLAGS, &error);
if (error != SCI_ERR_OK) {
log_message("erreur SCISetSegmentAvailable\n");
log_message("%s\n",Sci_error(error));
return error;
}
log_message("exporting segment %d size %d\n",
mem_id, mem_size);
return SCI_ERR_OK;
}