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created links to virtual files in master file

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This commit is contained in:
Dhanya Maliakal 2017-03-01 08:44:43 +01:00
parent 829ba49c1c
commit a7309be567
3 changed files with 55 additions and 6 deletions
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2
slsReceiverSoftware/include/GeneralData.h
View File

@ -449,7 +449,7 @@ private:
packetsPerFrame = 256;
imageSize = dataSize*packetsPerFrame;
frameIndexMask = 0xffffff;
maxFramesPerFile = EIGER_MAX_FRAMES_PER_FILE;
maxFramesPerFile = 5;//EIGER_MAX_FRAMES_PER_FILE;
fifoBufferSize = imageSize;
fifoBufferHeaderSize= FIFO_HEADER_NUMBYTES + FILE_FRAME_HEADER_SIZE;
defaultFifoDepth = 100;

45
slsReceiverSoftware/include/HDF5FileStatic.h
View File

@ -533,5 +533,50 @@ public:
free(data_out);
return 0;
}
/**
* Link the Virtual File in the Master File
* In C because H5Lcreate_external exists only in C
* @param virtualfname virtual file name
* @param virtualDatasetname virtual dataset name
* @param masterFileName master file name
* @returns 0 for success and 1 for fail
*/
int LinkVirtualInMaster(string virtualfname, string virtualDatasetname, string masterFileName) {
char linkname[100];
sprintf(linkname, "/entry/data/%s",virtualDatasetname.c_str());
hid_t mfd=-1, vfd=-1, vdset=-1;
hid_t dfal = H5Pcreate (H5P_FILE_ACCESS);
if (H5Pset_fclose_degree (dfal, H5F_CLOSE_STRONG) >= 0) {
mfd = H5Fopen( masterFileName.c_str(), H5F_ACC_RDWR, dfal);
if (mfd >= 0) {
vfd = H5Fopen( virtualfname.c_str(), H5F_ACC_RDWR, dfal);
if (vfd >= 0) {
vdset = H5Dopen2( vfd, virtualDatasetname.c_str(), H5P_DEFAULT);
if (vdset >= 0) {
if(H5Lcreate_external( virtualfname.c_str(), virtualDatasetname.c_str(),
mfd, linkname, H5P_DEFAULT, H5P_DEFAULT) >= 0) {
H5Dclose(vdset);
H5Fclose(mfd);
H5Fclose(vfd);
return 0;
cprintf(BLUE,"link created!\n");
} else cprintf(RED, "could not create link\n");
} else cprintf(RED, "could not open virtual dataset %s\n", virtualDatasetname.c_str());
} else cprintf(RED, "could not open virtual file %s\n", virtualfname.c_str());
} else cprintf(RED, "could not open master file %s\n", masterFileName.c_str());
}else cprintf(RED, "could not set strong file close degree\n");
if(vdset >=0 ) H5Dclose(vdset);
if(mfd >=0 ) H5Fclose(mfd);
if(vfd >=0 ) H5Fclose(vfd);
return 1;
}
};
#endif

4
slsReceiverSoftware/src/HDF5File.cpp
View File

@ -211,6 +211,10 @@ int HDF5File::CreateVirtualFile(uint64_t fnum) {
numReadouts, fileNames, *overWriteEnable, fnum, cdatatype,
framestosave, nPixelsY, ((*dynamicRange==4) ? (nPixelsX/2) : nPixelsX),
framestosave, numDetY * nPixelsY, numDetX * ((*dynamicRange==4) ? (nPixelsX/2) : nPixelsX),HDF5_WRITER_VERSION);
if (ret == OK)
ret = HDF5FileStatic::LinkVirtualInMaster(virtualFileName, virtualDatasetName, masterFileName);
pthread_mutex_unlock(&Mutex);
return ret;
}