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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/********************************************************************
*
* Testing thread safety in dataset creation in the HDF5 library
* -------------------------------------------------------------
*
* Set of tests to run multiple threads so that each creates a different
* dataset. This is likely to cause race-conditions if run in a non
* threadsafe environment.
*
* Temporary files generated:
* ttsafe_dcreate.h5
*
********************************************************************/
#include "ttsafe.h"
#ifdef H5_HAVE_THREADSAFE
#define FILENAME "ttsafe_dcreate.h5"
#define NUM_THREAD 16
void *tts_dcreate_creator(void *);
typedef struct thread_info {
int id;
hid_t file;
const char *dsetname;
} thread_info;
/*
* Set individual dataset names (rather than generated the names
* automatically)
*/
const char *dsetname[NUM_THREAD] = {"zero", "one", "two", "three", "four", "five",
"six", "seven", "eight", "nine", "ten", "eleven",
"twelve", "thirteen", "fourteen", "fifteen"};
thread_info thread_out[NUM_THREAD];
/*
**********************************************************************
* Thread safe test - multiple dataset creation
**********************************************************************
*/
void
tts_dcreate(void)
{
/* thread definitions */
H5TS_thread_t threads[NUM_THREAD];
/* HDF5 data definitions */
hid_t file = H5I_INVALID_HID;
hid_t dataset = H5I_INVALID_HID;
int datavalue, i;
H5TS_attr_t attribute;
herr_t status;
/* set pthread attribute to perform global scheduling */
H5TS_attr_init(&attribute);
/* set thread scope to system */
#ifdef H5_HAVE_SYSTEM_SCOPE_THREADS
H5TS_attr_setscope(&attribute, H5TS_SCOPE_SYSTEM);
#endif /* H5_HAVE_SYSTEM_SCOPE_THREADS */
/*
* Create a hdf5 file using H5F_ACC_TRUNC access, default file
* creation plist and default file access plist
*/
file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
CHECK(file, H5I_INVALID_HID, "H5Fcreate");
/* simultaneously create a large number of datasets within the file */
for (i = 0; i < NUM_THREAD; i++) {
thread_out[i].id = i;
thread_out[i].file = file;
thread_out[i].dsetname = dsetname[i];
threads[i] = H5TS_create_thread(tts_dcreate_creator, NULL, &thread_out[i]);
}
for (i = 0; i < NUM_THREAD; i++)
H5TS_wait_for_thread(threads[i]);
/* compare data to see if it is written correctly */
for (i = 0; i < NUM_THREAD; i++) {
if ((dataset = H5Dopen2(file, dsetname[i], H5P_DEFAULT)) < 0) {
TestErrPrintf("Dataset name not found - test failed\n");
H5Fclose(file);
return;
}
else {
status = H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &datavalue);
CHECK(status, FAIL, "H5Dread");
if (datavalue != i) {
TestErrPrintf("Wrong value read %d for dataset name %s - test failed\n", datavalue,
dsetname[i]);
status = H5Dclose(dataset);
CHECK(status, FAIL, "H5Dclose");
status = H5Fclose(file);
CHECK(status, FAIL, "H5Fclose");
return;
}
status = H5Dclose(dataset);
CHECK(status, FAIL, "H5Dclose");
}
}
/* close remaining resources */
status = H5Fclose(file);
CHECK(status, FAIL, "H5Fclose");
/* Destroy the thread attribute */
H5TS_attr_destroy(&attribute);
} /* end tts_dcreate() */
void *
tts_dcreate_creator(void *_thread_data)
{
hid_t dataspace = H5I_INVALID_HID;
hid_t dataset = H5I_INVALID_HID;
herr_t status;
hsize_t dimsf[1]; /* dataset dimensions */
struct thread_info thread_data;
memcpy(&thread_data, _thread_data, sizeof(struct thread_info));
/* define dataspace for dataset */
dimsf[0] = 1;
dataspace = H5Screate_simple(1, dimsf, NULL);
CHECK(dataspace, H5I_INVALID_HID, "H5Screate_simple");
/* create a new dataset within the file */
dataset = H5Dcreate2(thread_data.file, thread_data.dsetname, H5T_NATIVE_INT, dataspace, H5P_DEFAULT,
H5P_DEFAULT, H5P_DEFAULT);
CHECK(dataset, H5I_INVALID_HID, "H5Dcreate2");
/* initialize data for dataset and write value to dataset */
status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &thread_data.id);
CHECK(status, FAIL, "H5Dwrite");
/* close dataset and dataspace resources */
status = H5Dclose(dataset);
CHECK(status, FAIL, "H5Dclose");
status = H5Sclose(dataspace);
CHECK(status, FAIL, "H5Sclose");
return NULL;
} /* end tts_dcreate_creator() */
void
cleanup_dcreate(void)
{
HDunlink(FILENAME);
}
#endif /*H5_HAVE_THREADSAFE*/
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