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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
/***********************************************************
*
* Test program: tvlstr
*
* Test the variable length string functionality
*
*************************************************************/
#ifdef OLD_HEADER_FILENAME
#include <iostream.h>
#else
#include <iostream>
#endif
#include <string>
#ifndef H5_NO_NAMESPACE
#ifndef H5_NO_STD
using std::cerr;
using std::endl;
#endif // H5_NO_STD
#endif
#include "testhdf5.h" // C test header file
#include "H5Cpp.h" // C++ API header file
#ifndef H5_NO_NAMESPACE
using namespace H5;
#endif
#include "h5cpputil.h" // C++ utilility header file
const H5std_string DATAFILE("tvlstr.h5");
const H5std_string DATAFILE2("tvlstr2.h5");
// 1-D dataset with fixed dimensions
const int SPACE1_RANK = 1;
const hsize_t SPACE1_DIM1 = 4;
// 2-D dataset with fixed dimensions
const int SPACE2_RANK = 2;
const hsize_t SPACE2_DIM1 = 10;
const hsize_t SPACE2_DIM2 = 10;
const H5std_string VLSTR_TYPE("vl_string_type");
// Definitions for the VL re-writing test
const int REWRITE_NDATASETS = 32;
/***********************************************************
*
* Test program: tvlstr
*
* Test the Variable-Length String functionality
*
*************************************************************/
void *test_vlstr_alloc_custom(size_t size, void *info);
void test_vlstr_free_custom(void *mem, void *info);
/****************************************************************
**
** test_vlstr_alloc_custom(): Test VL datatype custom memory
** allocation routines. This routine just uses malloc to
** allocate the memory and increments the amount of memory
** allocated.
**
****************************************************************/
void *test_vlstr_alloc_custom(size_t size, void *info)
{
void *ret_value=NULL; // Pointer to return
int *mem_used=(int *)info; // Get the pointer to the memory used
size_t extra; // Extra space needed
/*
* This weird contortion is required on the DEC Alpha to keep the
* alignment correct - QAK
*/
extra=MAX(sizeof(void *),sizeof(size_t));
if((ret_value=HDmalloc(extra+size))!=NULL) {
*(size_t *)ret_value=size;
*mem_used+=size;
} // end if
ret_value=((unsigned char *)ret_value)+extra;
return(ret_value);
}
/****************************************************************
**
** test_vlstr_free_custom(): Test VL datatype custom memory
** allocation routines. This routine just uses free to
** release the memory and decrements the amount of memory
** allocated.
**
****************************************************************/
void test_vlstr_free_custom(void *_mem, void *info)
{
unsigned char *mem;
int *mem_used=(int *)info; // Get the pointer to the memory used
size_t extra; // Extra space needed
/*
* This weird contortion is required on the DEC Alpha to keep the
* alignment correct - QAK
*/
extra=MAX(sizeof(void *),sizeof(size_t));
if(_mem!=NULL) {
mem=((unsigned char *)_mem)-extra;
*mem_used-=*(size_t *)mem;
HDfree(mem);
} // end if
}
/****************************************************************
**
** test_vlstrings_basic(): Test basic VL string code.
** Tests simple VL string I/O
**
****************************************************************/
static void
test_vlstrings_basic(void)
{
const char *wdata[SPACE1_DIM1]= {
"Four score and seven years ago our forefathers brought forth on this continent a new nation,",
"conceived in liberty and dedicated to the proposition that all men are created equal.",
"Now we are engaged in a great civil war,",
"testing whether that nation or any nation so conceived and so dedicated can long endure."
}; // Information to write
// Output message about test being performed
MESSAGE(5, ("Testing Basic VL String Functionality\n"));
H5File* file1 = NULL;
try {
// Create file.
file1 = new H5File (DATAFILE, H5F_ACC_TRUNC);
// Create dataspace for datasets.
hsize_t dims1[] = {SPACE1_DIM1};
DataSpace sid1(SPACE1_RANK, dims1);
// Create a datatype to refer to.
StrType tid1(0, H5T_VARIABLE);
// Create a dataset.
DataSet dataset(file1->createDataSet("Dataset1", tid1, sid1));
// Write dataset to disk.
dataset.write(wdata, tid1);
// Create H5S_SCALAR data space.
DataSpace dataspace;
DataSet dataset2(file1->createDataSet("Dataset2", tid1, dataspace));
char *wdata2 = (char*)HDcalloc(65534, sizeof(char));
HDmemset(wdata2, 'A', 65533);
dataset2.write(&wdata2, tid1);
dataspace.close();
dataset2.close();
HDfree(wdata2);
// Change to the custom memory allocation routines for reading VL string.
DSetMemXferPropList xfer;
int mem_used=0; // Memory used during allocation
xfer.setVlenMemManager(test_vlstr_alloc_custom, &mem_used, test_vlstr_free_custom, &mem_used);
// Make certain the correct amount of memory will be used.
hsize_t vlsize = dataset.getVlenBufSize(tid1, sid1);
// Count the actual number of bytes used by the strings.
int str_used; // String data in memory
hsize_t i; // counting variable
for (i=0,str_used=0; i<SPACE1_DIM1; i++)
str_used+=HDstrlen(wdata[i])+1;
// Compare against the strings actually written.
verify_val((int)vlsize,str_used,"DataSet::getVlenBufSize", __LINE__, __FILE__);
// Read dataset from disk.
char *rdata[SPACE1_DIM1]; // Information read in
dataset.read(rdata, tid1, DataSpace::ALL, DataSpace::ALL, xfer);
// Make certain the correct amount of memory has been used.
VERIFY(mem_used, str_used, "H5Dread");
// Compare data read in.
for (i=0; i<SPACE1_DIM1; i++) {
if(HDstrlen(wdata[i])!=strlen(rdata[i])) {
TestErrPrintf("VL data length don't match!, strlen(wdata[%d])=%d, strlen(rdata[%d])=%d\n",(int)i,(int)strlen(wdata[i]),(int)i,(int)strlen(rdata[i]));
continue;
} // end if
if( HDstrcmp(wdata[i],rdata[i]) != 0 ) {
TestErrPrintf("VL data values don't match!, wdata[%d]=%s, rdata[%d]=%s\n",(int)i,wdata[i],(int)i,rdata[i]);
continue;
} // end if
} // end for
// Reclaim the read VL data.
DataSet::vlenReclaim((void *)rdata, tid1, sid1, xfer);
// Make certain the VL memory has been freed.
VERIFY(mem_used, 0, "DataSet::vlenReclaim");
// Close objects and file.
dataset.close();
tid1.close();
sid1.close();
xfer.close();
file1->close();
} // end try
// Catch all exceptions.
catch (Exception E)
{
issue_fail_msg(E.getCFuncName(), __LINE__, __FILE__, E.getCDetailMsg());
if (file1 != NULL) // clean up
delete file1;
}
} // end test_vlstrings_basic()
/****************************************************************
**
** test_vlstrings_special(): Test VL string code for special
** string cases, nil and zero-sized.
**
****************************************************************/
static void
test_vlstrings_special(void)
{
const char *wdata[SPACE1_DIM1] = {"one", "two", "", "four"};
const char *wdata2[SPACE1_DIM1] = {NULL, NULL, NULL, NULL};
char *rdata[SPACE1_DIM1]; // Information read in
// Output message about test being performed.
MESSAGE(5, ("Testing Special VL Strings\n"));
try {
// Create file.
H5File file1(DATAFILE, H5F_ACC_TRUNC);
// Create dataspace for datasets.
hsize_t dims1[] = {SPACE1_DIM1};
DataSpace sid1(SPACE1_RANK, dims1);
// Create a datatype to refer to.
StrType tid1(0, H5T_VARIABLE);
// Create a dataset.
DataSet dataset(file1.createDataSet("Dataset3", tid1, sid1));
// Read from dataset before writing data.
dataset.read(rdata, tid1);
// Check data read in.
hsize_t i; // counting variable
for (i=0; i<SPACE1_DIM1; i++)
if(rdata[i]!=NULL)
TestErrPrintf("VL doesn't match!, rdata[%d]=%p\n",(int)i,rdata[i]);
// Write dataset to disk.
dataset.write(wdata, tid1);
// Read dataset from disk.
dataset.read(rdata, tid1);
// Compare data read in.
for (i=0; i<SPACE1_DIM1; i++) {
if(HDstrlen(wdata[i])!=strlen(rdata[i])) {
TestErrPrintf("VL data length don't match!, strlen(wdata[%d])=%d, strlen(rdata[%d])=%d\n",(int)i,(int)strlen(wdata[i]),(int)i,(int)strlen(rdata[i]));
continue;
} // end if
if( HDstrcmp(wdata[i],rdata[i]) != 0 ) {
TestErrPrintf("VL data values don't match!, wdata[%d]=%s, rdata[%d]=%s\n",(int)i,wdata[i],(int)i,rdata[i]);
continue;
} // end if
} // end for
// Reclaim the read VL data.
DataSet::vlenReclaim((void *)rdata, tid1, sid1);
// Close Dataset.
dataset.close();
// Create another dataset to test nil strings.
DSetCreatPropList dcpl;
// Set the fill value for the second dataset.
char *fill = NULL; // Fill value
dcpl.setFillValue(tid1, &fill);
dataset = file1.createDataSet("Dataset4", tid1, sid1, dcpl);
// Close dataset creation property list.
dcpl.close();
// Read from dataset before writing data.
dataset.read(rdata, tid1);
// Check data read in.
for (i=0; i<SPACE1_DIM1; i++)
if(rdata[i]!=NULL)
TestErrPrintf("VL doesn't match!, rdata[%d]=%p\n",(int)i,rdata[i]);
// Try to write nil strings to disk.
dataset.write(wdata2, tid1);
// Read nil strings back from disk.
dataset.read(rdata, tid1);
// Check data read in.
for (i=0; i<SPACE1_DIM1; i++)
if(rdata[i]!=NULL)
TestErrPrintf("VL doesn't match!, rdata[%d]=%p\n",(int)i,rdata[i]);
// Close objects and file.
dataset.close();
tid1.close();
sid1.close();
file1.close();
} // end try
// Catch all exceptions.
catch (Exception E)
{
issue_fail_msg(E.getCFuncName(), __LINE__, __FILE__, E.getCDetailMsg());
}
} // test_vlstrings_special
/****************************************************************
**
** test_vlstring_type(): Test VL string type.
** Tests if VL string is treated as string.
**
****************************************************************/
static void test_vlstring_type(void)
{
// Output message about test being performed.
MESSAGE(5, ("Testing VL String type\n"));
H5File* file1 = NULL;
try {
// Open file.
file1 = new H5File(DATAFILE, H5F_ACC_RDWR);
// Create a datatype to refer to.
StrType vlstr_type(PredType::C_S1);
// Change padding and verify it.
vlstr_type.setStrpad(H5T_STR_NULLPAD);
H5T_str_t pad = vlstr_type.getStrpad();
verify_val(pad, H5T_STR_NULLPAD, "StrType::getStrpad", __LINE__, __FILE__);
// Convert to variable-length string.
vlstr_type.setSize(H5T_VARIABLE);
// Check if datatype is VL string.
H5T_class_t type_class = vlstr_type.getClass();
verify_val(type_class, H5T_STRING, "DataType::getClass", __LINE__, __FILE__);
bool is_variable_str = vlstr_type.isVariableStr();
verify_val(is_variable_str, true, "DataType::isVariableStr", __LINE__, __FILE__);
// Check default character set and padding.
H5T_cset_t cset = vlstr_type.getCset();
verify_val(cset, H5T_CSET_ASCII, "StrType::getCset", __LINE__, __FILE__);
pad = vlstr_type.getStrpad();
verify_val(pad, H5T_STR_NULLPAD, "StrType::getStrpad", __LINE__, __FILE__);
// Commit variable-length string datatype to storage.
vlstr_type.commit(*file1, VLSTR_TYPE);
// Close datatype.
vlstr_type.close();
// Try opening datatype again.
vlstr_type = file1->openStrType(VLSTR_TYPE);
// Close datatype and file.
vlstr_type.close();
file1->close();
// Open file.
file1 = new H5File(DATAFILE, H5F_ACC_RDWR);
//fid = H5Fopen(DATAFILE.c_str(), H5F_ACC_RDWR, H5P_DEFAULT);
// Open the variable-length string datatype just created
vlstr_type.setId((file1->openStrType(VLSTR_TYPE)).getId());
//tid_vlstr = H5Topen(fid, VLSTR_TYPE.c_str());
// Verify character set and padding
cset = vlstr_type.getCset();
verify_val(cset, H5T_CSET_ASCII, "StrType::getCset", __LINE__, __FILE__);
//cset = H5Tget_cset(tid_vlstr);
pad = vlstr_type.getStrpad();
//pad = H5Tget_strpad(tid_vlstr);
verify_val(pad, H5T_STR_NULLPAD, "StrType::getStrpad", __LINE__, __FILE__);
// Close datatype and file
vlstr_type.close();
file1->close();
} // end try
// Catch all exceptions.
catch (Exception E)
{
issue_fail_msg(E.getCFuncName(), __LINE__, __FILE__, E.getCDetailMsg());
}
} // end test_vlstring_type()
/****************************************************************
**
** test_compact_vlstring(): Test code for storing VL strings in
** compact datasets.
**
****************************************************************/
static void
test_compact_vlstring(void)
{
const char *wdata[SPACE1_DIM1] = {"one", "two", "three", "four"};
char *rdata[SPACE1_DIM1]; // Information read in
// Output message about test being performed
MESSAGE(5, ("Testing VL Strings in compact dataset\n"));
try {
// Create file
H5File file1(DATAFILE, H5F_ACC_TRUNC);
// Create dataspace for datasets
hsize_t dims1[] = {SPACE1_DIM1};
DataSpace sid1(SPACE1_RANK, dims1);
// Create a datatype to refer to
StrType tid1(0, H5T_VARIABLE);
// Create dataset create property list and set layout
DSetCreatPropList plist;
plist.setLayout(H5D_COMPACT);
// Create a dataset
DataSet dataset(file1.createDataSet("Dataset5", tid1, sid1, plist));
// Write dataset to disk
dataset.write(wdata, tid1);
// Read dataset from disk
dataset.read(rdata, tid1);
// Compare data read in
hsize_t i;
for (i=0; i<SPACE1_DIM1; i++) {
if (HDstrlen(wdata[i])!=strlen(rdata[i])) {
TestErrPrintf("VL data length don't match!, strlen(wdata[%d])=%d, strlen(rdata[%d])=%d\n",(int)i,(int)strlen(wdata[i]),(int)i,(int)strlen(rdata[i]));
continue;
} // end if
if (HDstrcmp(wdata[i],rdata[i]) != 0) {
TestErrPrintf("VL data values don't match!, wdata[%d]=%s, rdata[%d]=%s\n",(int)i,wdata[i],(int)i,rdata[i]);
continue;
} // end if
} // end for
// Reclaim the read VL data
DataSet::vlenReclaim((void *)rdata, tid1, sid1);
// Close objects and file
dataset.close();
tid1.close();
sid1.close();
plist.close();
file1.close();
} // end try
// Catch all exceptions.
catch (Exception E)
{
issue_fail_msg(E.getCFuncName(), __LINE__, __FILE__, E.getCDetailMsg());
}
} // test_compact_vlstrings
/****************************************************************
**
** test_write_vl_string_attribute(): Test basic VL string code.
** Tests writing VL strings as attributes
**
****************************************************************/
// String for testing attributes
static const char *string_att = "This is the string for the attribute";
static char *string_att_write=NULL;
// Info for a string attribute
const H5std_string ATTRSTR_NAME("String_attr");
const H5std_string ATTRSTR_DATA("String Attribute");
static void
test_write_vl_string_attribute(void)
{
// Output message about test being performed
MESSAGE(5, ("Testing writing VL String as attributes\n"));
try {
// Open the file
H5File file1(DATAFILE, H5F_ACC_RDWR);
// Create a datatype to refer to.
StrType tid1(0, H5T_VARIABLE);
// Open the root group.
Group root = file1.openGroup("/");
// Create dataspace for the attribute.
DataSpace att_space (H5S_SCALAR);
// Create an attribute for the root group.
Attribute gr_attr = root.createAttribute(ATTRSTR_NAME, tid1, att_space);
// Write data to the attribute.
gr_attr.write(tid1, ATTRSTR_DATA);
// Read and verify the attribute string as a string of chars.
char *string_att_check;
gr_attr.read(tid1, &string_att_check);
if(HDstrcmp(string_att_check, ATTRSTR_DATA.c_str())!=0)
TestErrPrintf("Line %d: Attribute data different: ATTRSTR_DATA=%s,string_att_check=%s\n",__LINE__, ATTRSTR_DATA.c_str(), string_att_check);
HDfree(string_att_check); // note: no need for std::string test
// Read and verify the attribute string as an std::string.
H5std_string read_str;
gr_attr.read(tid1, read_str);
if (read_str != ATTRSTR_DATA)
TestErrPrintf("Line %d: Attribute data different: ATTRSTR_DATA=%s,read_str=%s\n",__LINE__, ATTRSTR_DATA.c_str(), read_str.c_str());
// Close group's attribute.
gr_attr.close();
// Test creating a "large" sized string attribute
gr_attr = root.createAttribute("test_scalar_large", tid1, att_space);
string_att_write = (char*)HDcalloc(8192, sizeof(char));
HDmemset(string_att_write, 'A', 8191);
// Write data to the attribute.
gr_attr.write(tid1, &string_att_write);
gr_attr.read(tid1, &string_att_check);
if(HDstrcmp(string_att_check,string_att_write)!=0)
TestErrPrintf("VL string attributes don't match!, string_att_write=%s, string_att_check=%s\n",string_att_write,string_att_check);
HDfree(string_att_check);
gr_attr = root.openAttribute(ATTRSTR_NAME);
// The attribute string written is freed below, in the
// test_read_vl_string_attribute() test
// Close attribute and file
gr_attr.close();
file1.close();
} // end try block
// Catch all exceptions.
catch (Exception E) {
issue_fail_msg(E.getCFuncName(), __LINE__, __FILE__, E.getCDetailMsg());
}
} // test_string_attr()
/****************************************************************
**
** test_read_vl_string_attribute(): Test basic VL string code.
** Tests reading VL strings from attributes
**
****************************************************************/
static void test_read_vl_string_attribute(void)
{
char *string_att_check;
try {
// Open file
H5File file1(DATAFILE, H5F_ACC_RDONLY);
// Create a datatype to refer to.
StrType tid1(0, H5T_VARIABLE);
Group root = file1.openGroup("/");
Attribute att = root.openAttribute(ATTRSTR_NAME);
// Test reading "normal" sized string attribute
att.read(tid1, &string_att_check);
if(HDstrcmp(string_att_check,ATTRSTR_DATA.c_str())!=0)
TestErrPrintf("VL string attributes don't match!, string_att=%s, string_att_check=%s\n",ATTRSTR_DATA.c_str(),string_att_check);
HDfree(string_att_check);
// Close this attribute.
att.close();
// Test reading "large" sized string attribute
att = root.openAttribute("test_scalar_large");
att.read(tid1, &string_att_check);
if(HDstrcmp(string_att_check,string_att_write)!=0)
TestErrPrintf("VL string attributes don't match!, string_att_write=%s, string_att_check=%s\n",string_att_write,string_att_check);
HDfree(string_att_check);
HDfree(string_att_write); // Free string allocated in test_write_vl_string_attribute
// Close objects and file.
att.close();
tid1.close();
root.close();
file1.close();
} // end try
// Catch all exceptions.
catch (Exception E) {
issue_fail_msg(E.getCFuncName(), __LINE__, __FILE__, E.getCDetailMsg());
}
} // test_read_vl_string_attribute
/* Helper routine for test_vl_rewrite() */
static void write_scalar_dset(H5File& file, DataType& type, DataSpace& space, char *name, char *data)
{
DataSet dset;
try {
dset = file.createDataSet(name, type, space);
dset.write(&data, type, space, space);
dset.close();
} // end try
catch (FileIException ferr) {
throw;
}
catch (DataSetIException derr) {
throw;
}
}
/* Helper routine for test_vl_rewrite() */
static void read_scalar_dset(H5File& file, DataType& type, DataSpace& space, char *name, char *data)
{
char *data_read;
DataSet dset;
try {
dset = file.openDataSet(name);
dset.read(&data_read, type, space, space);
dset.close();
if(HDstrcmp(data, data_read))
TestErrPrintf("Expected %s for dataset %s but read %s\n", data, name, data_read);
HDfree(data_read);
} // end try
catch (FileIException ferr) {
throw;
}
catch (DataSetIException derr) {
throw;
}
}
/****************************************************************
**
** test_vl_rewrite(): Test basic VL string code.
** Tests I/O on VL strings when lots of objects in the file
** have been linked/unlinked.
**
****************************************************************/
static void test_vl_rewrite(void)
{
try {
// Create the files.
H5File file1(DATAFILE, H5F_ACC_TRUNC);
H5File file2(DATAFILE2, H5F_ACC_TRUNC);
// Create the VL string datatype.
StrType type(0, H5T_VARIABLE);
// Create dataspace for the attribute.
DataSpace space (H5S_SCALAR);
// Create in file 1.
int i;
char name[256]; // Buffer for names & data
for (i=0; i<REWRITE_NDATASETS; i++) {
sprintf(name, "/set_%d", i);
write_scalar_dset(file1, type, space, name, name);
}
// Effectively copy data from file 1 to 2.
for (i=0; i<REWRITE_NDATASETS; i++) {
sprintf(name, "/set_%d", i);
read_scalar_dset(file1, type, space, name, name);
write_scalar_dset(file2, type, space, name, name);
}
// Read back from file 2.
for (i=0; i<REWRITE_NDATASETS; i++) {
sprintf(name, "/set_%d", i);
read_scalar_dset(file2, type, space, name, name);
}
// Remove from file 2.
for (i=0; i<REWRITE_NDATASETS; i++) {
sprintf(name, "/set_%d", i);
file2.unlink(name);
}
// Effectively copy from file 1 to file 2.
for (i=0; i<REWRITE_NDATASETS; i++) {
sprintf(name, "/set_%d", i);
read_scalar_dset(file1, type, space, name, name);
write_scalar_dset(file2, type, space, name, name);
}
// Close objects and file.
type.close();
space.close();
file1.close();
file2.close();
} // end try
// Catch all exceptions.
catch (Exception E) {
issue_fail_msg(E.getCFuncName(), __LINE__, __FILE__, E.getCDetailMsg());
}
} // end test_vl_rewrite()
/****************************************************************
**
** test_vlstrings(): Main VL string testing routine.
**
****************************************************************/
void test_vlstrings(void)
{
// Output message about test being performed
MESSAGE(5, ("Testing Variable-Length Strings\n"));
// These tests use the same file
// Test basic VL string datatype
test_vlstrings_basic();
test_vlstrings_special();
test_vlstring_type();
test_compact_vlstring();
// Test using VL strings in attributes
test_write_vl_string_attribute();
test_read_vl_string_attribute();
// Test writing VL datasets in files with lots of unlinking
test_vl_rewrite();
} // test_vlstrings()
/*-------------------------------------------------------------------------
* Function: cleanup_vlstrings
*
* Purpose: Cleanup temporary test files
*
* Return: none
*
* Programmer: Quincey Koziol
* September 10, 1999
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
void
cleanup_vlstrings(void)
{
HDremove(DATAFILE.c_str());
HDremove(DATAFILE2.c_str());
}
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