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This commit is contained in:
koennecke
2007-11-27 13:36:15 +00:00
parent 1265ae957b
commit 22b0e8ec83
50 changed files with 6025 additions and 171 deletions

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nxinterhelper.c Normal file
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/*
This is a library of support functions and data structures which can be
used in order to create interfaces between the NeXus-API and scripting
languages or data analysis systems with a native code interface.
copyright: GPL
Mark Koennecke, October 2002
Mark Koennecke, November 2002
*/
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <stdio.h>
#include "nxinterhelper.h"
#include "nxdataset.h"
/*-----------------------------------------------------------------
An own error handler. nx_getlasterror will return the test of
the last NeXus error.
--------------------------------------------------------------------*/
static char errorText[256]= "";
static void nxinterError(void *pData, char *error){
strncpy(errorText,error,255);
}
/*-----------------------------------------------------------------------*/
char *nx_getlasterror(void){
return strdup(errorText);
}
/*-------------------- opening and closing -------------------------------*/
void *nx_open(char *filename, int accessMethod){
NXhandle handle = NULL;
int status;
NXMSetError(NULL,nxinterError);
status = NXopen(filename,(NXaccess)accessMethod, &handle);
if(status == NX_OK){
return handle;
}else{
return NULL;
}
}
/*------------------------------------------------------------------------*/
void *nx_flush(void *hundle){
NXhandle handle;
int status;
handle = (NXhandle)hundle;
status = NXflush(&handle);
if(status == NX_OK){
return handle;
} else {
return NULL;
}
}
/*-----------------------------------------------------------------------*/
void nx_close(void *hundle){
NXhandle handle;
handle = (NXhandle)hundle;
NXclose(&handle);
}
/*=================== group handling functions ========================*/
int nx_makegroup(void *handle, char *name, char *nxclass){
int status;
NXhandle hfil;
hfil = (NXhandle)handle;
status = NXmakegroup(hfil,name, nxclass);
if(status == NX_OK){
return 1;
} else {
return 0;
}
}
/*---------------------------------------------------------------------*/
int nx_opengroup(void *handle, char *name, char *nxclass){
int status;
NXhandle hfil;
hfil = (NXhandle)handle;
status = NXopengroup(hfil,name, nxclass);
if(status == NX_OK){
return 1;
} else {
return 0;
}
}
/*---------------------------------------------------------------------*/
int nx_openpath(void *handle, char *path){
int status;
NXhandle hfil;
hfil = (NXhandle)handle;
status = NXopenpath(hfil,path);
if(status == NX_OK){
return 1;
} else {
return 0;
}
}
/*---------------------------------------------------------------------*/
int nx_opengrouppath(void *handle, char *path){
int status;
NXhandle hfil;
hfil = (NXhandle)handle;
status = NXopengrouppath(hfil,path);
if(status == NX_OK){
return 1;
} else {
return 0;
}
}
/*--------------------------------------------------------------------*/
int nx_closegroup(void *handle){
int status;
NXhandle hfil;
hfil = (NXhandle)handle;
status = NXclosegroup(hfil);
if(status == NX_OK){
return 1;
} else {
return 0;
}
}
/*-------------------------------------------------------------------*/
char *nx_getnextentry(void *handle, char separator){
int status, length, type;
NXhandle hfil;
char *resultBuffer = NULL;
NXname group,nxclass;
hfil = (NXhandle)handle;
status = NXgetnextentry(hfil,group, nxclass,&type);
if(status == NX_OK){
length = 30 + strlen(group) + strlen(nxclass);
/*
This introduces a memory leak. I had hoped, that swig would
kill it for me after use, but I'am afraid, this is not the
case. Unfortately I do not know how to fix the issue.
*/
resultBuffer = (char *)malloc(length*sizeof(char));
if(resultBuffer == NULL){
return NULL;
}
sprintf(resultBuffer,"%s%c%s%c%d",group,separator,nxclass,
separator,type);
return resultBuffer;
} else {
return NULL;
}
}
/*-------------------------------------------------------------------*/
void *nx_getgroupID(void *handle){
int status;
NXhandle hfil;
NXlink *linki;
linki = (NXlink *)malloc(sizeof(NXlink));
if(linki == NULL){
return NULL;
}
hfil = (NXhandle)handle;
status = NXgetgroupID(hfil,linki);
if(status == NX_OK){
return linki;
} else {
return NULL;
}
}
/*------------------------------------------------------------------*/
int nx_initgroupdir(void *handle){
int status;
NXhandle hfil;
hfil = (NXhandle)handle;
status = NXinitgroupdir(hfil);
if(status == NX_OK){
return 1;
} else {
return 0;
}
}
/*========================== dataset handling =======================*/
int nx_makedata(void *ptr, char *name, int rank, int type,
void *dimPtr){
int status;
NXhandle hfil;
pNXDS dimData;
hfil = (NXhandle)ptr;
dimData = (pNXDS)dimPtr;
if(dimData->type != NX_INT32){
NXIReportError(NULL,"ERROR: dimension data not integer");
return 0;
}
status = NXmakedata(hfil, name, type, rank,
dimData->u.iPtr);
if(status == NX_OK){
return 1;
} else {
return 0;
}
}
/*--------------------------------------------------------------------*/
int nx_compmakedata(void *ptr, char *name, int rank, int type,
void *dimPtr, void *bufPtr){
int status;
NXhandle hfil;
pNXDS dimData, bufData;
hfil = (NXhandle)ptr;
dimData = (pNXDS)dimPtr;
if(dimData->type != NX_INT32){
NXIReportError(NULL,"ERROR: dimension data not integer");
return 0;
}
bufData = (pNXDS)bufPtr;
status = NXcompmakedata(hfil, name, type, rank,
dimData->u.iPtr, NX_COMP_LZW,bufData->u.iPtr);
if(status == NX_OK){
return 1;
} else {
return 0;
}
}
/*----------------------------------------------------------------------*/
int nx_opendata(void *handle, char *name){
int status;
NXhandle hfil;
hfil = (NXhandle)handle;
status = NXopendata(hfil,name);
if(status == NX_OK){
return 1;
} else {
return 0;
}
}
/*----------------------------------------------------------------------*/
int nx_closedata(void *handle){
int status;
NXhandle hfil;
hfil = (NXhandle)handle;
status = NXclosedata(hfil);
if(status == NX_OK){
return 1;
} else {
return 0;
}
}
/*------------------------------------------------------------------------*/
int nx_putslab(void *handle, void *dataset, void *startDim){
int status;
NXhandle hfil;
pNXDS data;
pNXDS start;
int end[NX_MAXRANK], i;
hfil = (NXhandle)handle;
data = (pNXDS)dataset;
start = (pNXDS)startDim;
for(i = 0; i < data->rank;i++){
end[i] = data->dim[i];
}
status = NXputslab(hfil,data->u.ptr,start->u.iPtr,end);
if(status == NX_OK){
return 1;
} else {
return 0;
}
}
/*-----------------------------------------------------------------------*/
void *nx_getslab(void *handle, void *startdim, void *sizedim){
pNXDS resultdata;
pNXDS start, size;
int status, rank, type, dim[NX_MAXRANK];
NXhandle hfil;
hfil = (NXhandle)handle;
start = (pNXDS)startdim;
size = (pNXDS)sizedim;
/*
get info first, then allocate data
*/
status = NXgetinfo(hfil, &rank,dim,&type);
if(status != NX_OK){
return NULL;
}
resultdata = createNXDataset(rank,type,size->u.iPtr);
if(resultdata == NULL){
return NULL;
}
status = NXgetslab(hfil,resultdata->u.ptr,start->u.iPtr,
size->u.iPtr);
if(status == NX_OK){
return resultdata;
}else{
dropNXDataset(resultdata);
return NULL;
}
}
/*------------------------------------------------------------------------*/
void *nx_getds(void *handle, char *name){
pNXDS result = NULL;
int rank, type,dim[NX_MAXRANK],status;
NXhandle hfil;
hfil = (NXhandle)handle;
status = NXopendata(hfil,name);
if(status != NX_OK){
return NULL;
}
status = NXgetinfo(hfil,&rank,dim,&type);
if(status != NX_OK){
return NULL;
}
result = createNXDataset(rank,type,dim);
if(result == NULL){
NXclosedata(hfil);
return NULL;
}
status = NXgetdata(hfil,result->u.ptr);
if(result == NULL){
NXclosedata(hfil);
dropNXDataset(result);
return NULL;
}
NXclosedata(hfil);
return result;
}
/*----------------------------------------------------------------------*/
int nx_putds(void *handle, char *name, void *dataset){
NXhandle hfil;
int status;
pNXDS data;
hfil = (NXhandle)handle;
data = (pNXDS)dataset;
status = NXopendata(hfil,name);
if(status != NX_OK){
status = NXmakedata(hfil,name,data->type,data->rank,data->dim);
if(status != NX_OK){
return 0;
}
NXopendata(hfil,name);
}
status = NXputdata(hfil,data->u.ptr);
NXclosedata(hfil);
if(status != NX_OK){
return 0;
}else{
return 1;
}
}
/*------------------------------------------------------------------------*/
void *nx_getdata(void *handle){
pNXDS result = NULL;
int rank, type,dim[NX_MAXRANK],status;
NXhandle hfil;
hfil = (NXhandle)handle;
status = NXgetinfo(hfil,&rank,dim,&type);
if(status != NX_OK){
return NULL;
}
result = createNXDataset(rank,type,dim);
if(result == NULL){
NXclosedata(hfil);
return NULL;
}
status = NXgetdata(hfil,result->u.ptr);
if(result == NULL){
dropNXDataset(result);
return NULL;
}
return result;
}
/*----------------------------------------------------------------------*/
int nx_putdata(void *handle, void *dataset){
NXhandle hfil;
int status;
pNXDS data;
hfil = (NXhandle)handle;
data = (pNXDS)dataset;
if(data == NULL){
NXIReportError(NULL,"ERROR: NULL data pointer in nx_putdata");
return 0;
}
status = NXputdata(hfil,data->u.ptr);
if(status != NX_OK){
return 0;
}else{
return 1;
}
}
/*----------------------------------------------------------------------*/
void *nx_getinfo(void *handle){
NXhandle hfil;
int status, type, rank, dim[NX_MAXRANK], rdim[1], i;
pNXDS data = NULL;
hfil = (NXhandle)handle;
status = NXgetinfo(handle,&rank,dim,&type);
if(status != NX_OK){
return NULL;
}
rdim[0] = 2 + rank;
data = createNXDataset(1,NX_INT32,rdim);
data->u.iPtr[0] = type;
data->u.iPtr[1] = rank;
for(i = 0; i < rank; i++){
data->u.iPtr[2+i] = dim[i];
}
return data;
}
/*----------------------------------------------------------------------*/
void *nx_getdataID(void *handle){
NXhandle hfil;
int status;
NXlink *linki;
linki = (NXlink *)malloc(sizeof(NXlink));
if(linki == NULL){
return NULL;
}
hfil = (NXhandle)handle;
status = NXgetdataID(hfil,linki);
if(status == NX_OK){
return linki;
} else {
free(linki);
return NULL;
}
}
/*-------------------------------------------------------------------*/
char *nx_getnextattr(void *handle, char separator){
int status, length, type;
char *result;
NXhandle hfil;
NXname aName;
hfil = (NXhandle)handle;
status = NXgetnextattr(hfil,aName, &length, &type);
if(status == NX_OK){
/*
This introduces a memory leak. I had hoped, that swig would
kill it for me after use, but I'am afraid, this is not the
case. Unfortately I do not know how to fix the issue.
*/
result = (char *)malloc((20+strlen(aName))*sizeof(char));
if(result == NULL){
return NULL;
}
memset(result,0,(20+strlen(aName))*sizeof(char));
sprintf(result,"%s%c%d%c%d", aName,separator,
length,separator,type);
return result;
} else {
return NULL;
}
}
/*-------------------------------------------------------------------*/
int nx_putattr(void *handle, char *name, void *ds){
int status;
NXhandle hfil;
pNXDS data;
hfil = (NXhandle)handle;
data = (pNXDS)ds;
status = NXputattr(hfil,name,data->u.ptr,data->dim[0],data->type);
if(status == NX_OK){
return 1;
}else{
return 0;
}
}
/*-------------------------------------------------------------------*/
void *nx_getattr(void *handle, char *name, int type, int length){
NXhandle hfil;
int status, tp, ll, dim[1];
pNXDS data = NULL;
hfil = (NXhandle)handle;
/*
prepare dataset
*/
dim[0] = length+1;
data = createNXDataset(1,type,dim);
if(data == NULL){
return NULL;
}
/*
finally read the real data
*/
ll = length;
tp = type;
status = NXgetattr(hfil,name,data->u.ptr,&ll,&tp);
if(status != NX_OK){
dropNXDataset(data);
return NULL;
}
return data;
}
/*-----------------------------------------------------------------------*/
int nx_makelink(void *handle, void *link){
NXhandle hfil;
NXlink* lk;
int status;
hfil = (NXhandle)handle;
lk = (NXlink *)link;
status = NXmakelink(hfil,lk);
if(status == NX_OK){
return 1;
}else{
return 0;
}
}
/*-----------------------------------------------------------------------*/
int nx_opensourcegroup(void *handle){
NXhandle hfil;
int status;
hfil = (NXhandle)handle;
status = NXopensourcegroup(hfil);
if(status == NX_OK){
return 1;
}else{
return 0;
}
}