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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/********************************************************************
*
* Testing thread safety. Deliberate per-thread errors to test error stack
* -----------------------------------------------------------------------
*
* Create 16 multiple threads to create datasets with the same name. The
* library should respond with 15 equivalent error stack printouts (one for
* each bad thread). The final hdf5 file should be a valid file with one
* entry.
*
* Temporary files generated:
*
* ttsafe_error.h5
*
* HDF5 APIs exercised in thread:
*
* H5Screate_simple, H5Tcopy, H5Tset_order, H5Dcreate, H5Dclose,
* H5Tclose, H5Sclose.
*
* Created: Apr 28 2000
* Programmer: Chee Wai LEE
*
* Modification History
* --------------------
*
* 19 May 2000, Bill Wendling
* Modified so that it creates a unique HDF5 file and removes it on
* cleanup.
*
********************************************************************/
#include "ttsafe.h"
#ifdef H5_HAVE_THREADSAFE
#define NUM_THREAD 16
#define FILENAME "ttsafe_error.h5"
/* Having a common dataset name is an error */
#define DATASETNAME "commonname"
#define EXPECTED_ERROR_DEPTH 8
#define WRITE_NUMBER 37
static herr_t error_callback(hid_t , void *);
static herr_t walk_error_callback(unsigned, const H5E_error_stack_t *, void *);
static void *tts_error_thread(void *);
/* Global variables */
hid_t error_file;
typedef struct err_num_struct {
hid_t maj_num;
hid_t min_num;
} err_num_t;
err_num_t expected[8];
int error_flag = 0;
int error_count = 0;
pthread_mutex_t error_mutex;
void tts_error(void)
{
pthread_t threads[NUM_THREAD];
pthread_attr_t attribute;
hid_t dataset;
int value, i;
int ret;
/* Must initialize these at runtime */
expected[0].maj_num = H5E_LINK;
expected[0].min_num = H5E_CANTINIT;
expected[1].maj_num = H5E_LINK;
expected[1].min_num = H5E_CANTINIT;
expected[2].maj_num = H5E_SYM;
expected[2].min_num = H5E_CANTINSERT;
expected[3].maj_num = H5E_SYM;
expected[3].min_num = H5E_NOTFOUND;
expected[4].maj_num = H5E_SYM;
expected[4].min_num = H5E_CALLBACK;
expected[5].maj_num = H5E_SYM;
expected[5].min_num = H5E_EXISTS;
/* set up mutex for global count of errors */
ret=pthread_mutex_init(&error_mutex, NULL);
assert(ret==0);
/* make thread scheduling global */
ret=pthread_attr_init(&attribute);
assert(ret==0);
#ifdef H5_HAVE_SYSTEM_SCOPE_THREADS
ret=pthread_attr_setscope(&attribute, PTHREAD_SCOPE_SYSTEM);
assert(ret==0);
#endif /* H5_HAVE_SYSTEM_SCOPE_THREADS */
/*
* Create a hdf5 file using H5F_ACC_TRUNC access, default file
* creation plist and default file access plist
*/
error_file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
assert(error_file>=0);
for (i = 0; i < NUM_THREAD; i++){
ret=pthread_create(&threads[i], &attribute, tts_error_thread, NULL);
assert(ret==0);
}
for (i = 0; i < NUM_THREAD; i++){
ret=pthread_join(threads[i],NULL);
assert(ret==0);
}
if (error_flag)
TestErrPrintf("Threads reporting different error values!\n");
if (error_count != NUM_THREAD - 1)
TestErrPrintf("Error: %d threads failed instead of %d\n", error_count, NUM_THREAD-1);
dataset = H5Dopen(error_file, DATASETNAME);
assert(dataset>=0);
ret=H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &value);
assert(ret>=0);
if (value != WRITE_NUMBER)
TestErrPrintf("Error: Successful thread wrote value %d instead of %d\n", value, WRITE_NUMBER);
ret=H5Dclose(dataset);
assert(ret>=0);
ret=H5Fclose(error_file);
assert(ret>=0);
/* Destroy the thread attribute */
ret=pthread_attr_destroy(&attribute);
assert(ret==0);
}
static
void *tts_error_thread(void UNUSED *arg)
{
hid_t dataspace, datatype, dataset;
hsize_t dimsf[1]; /* dataset dimensions */
H5E_auto_stack_t old_error_cb;
void *old_error_client_data;
int value;
int ret;
/* preserve previous error stack handler */
H5Eget_auto_stack(H5E_DEFAULT, &old_error_cb, &old_error_client_data);
/* set each thread's error stack handler */
H5Eset_auto_stack(H5E_DEFAULT, error_callback, NULL);
/* define dataspace for dataset */
dimsf[0] = 1;
dataspace = H5Screate_simple(1,dimsf,NULL);
assert(dataspace>=0);
/* define datatype for the data using native little endian integers */
datatype = H5Tcopy(H5T_NATIVE_INT);
assert(datatype>=0);
H5Tset_order(datatype, H5T_ORDER_LE);
/* create a new dataset within the file */
dataset = H5Dcreate(error_file, DATASETNAME, datatype, dataspace, H5P_DEFAULT);
if (dataset >= 0) { /* not an error */
value = WRITE_NUMBER;
H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &value);
H5Dclose(dataset);
}
ret=H5Tclose(datatype);
assert(ret>=0);
ret=H5Sclose(dataspace);
assert(ret>=0);
/* turn our error stack handler off */
H5Eset_auto_stack(H5E_DEFAULT, old_error_cb, old_error_client_data);
return NULL;
}
static
herr_t error_callback(hid_t estack_id, void *client_data)
{
int ret;
ret=pthread_mutex_lock(&error_mutex);
assert(ret==0);
error_count++;
ret=pthread_mutex_unlock(&error_mutex);
assert(ret==0);
return H5Ewalk_stack(H5E_DEFAULT, H5E_WALK_DOWNWARD, walk_error_callback, client_data);
}
static
herr_t walk_error_callback(unsigned n, const H5E_error_stack_t *err_desc, void UNUSED *client_data)
{
hid_t maj_num, min_num;
if (err_desc) {
maj_num = err_desc->maj_num;
min_num = err_desc->min_num;
if (n < EXPECTED_ERROR_DEPTH && maj_num == expected[n].maj_num &&
min_num == expected[n].min_num)
return SUCCEED;
}
error_flag = -1;
return SUCCEED;
}
void cleanup_error(void)
{
HDunlink(FILENAME);
}
#endif /*H5_HAVE_THREADSAFE*/
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