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25ec07450a
and replace it with new url for COPYING file. Fix 2 lines in java error test expected output file where messages include line numbers changed by reducing the copyright header by 2 lines.
256 lines
7.5 KiB
C
256 lines
7.5 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/********************************************************************
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*
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* Testing thread safety. Thread Cancellation safety
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* -------------------------------------------------
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*
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* The main thread spawns a child to perform a series of dataset writes
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* to a hdf5 file. The main thread and child thread synchronizes within
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* a callback function called during a H5Diterate call afterwhich the
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* main thread attempts to cancel the child thread.
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*
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* The cancellation should only work after the child thread has safely
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* left the H5Diterate call.
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*
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* Temporary files generated:
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* ttsafe_cancel.h5
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*
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* HDF5 APIs exercised in thread:
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* H5Screate_simple, H5Tcopy, H5Tset_order, H5Dcreate2, H5Dclose,
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* H5Dwrite, H5Dread, H5Diterate, H5Tclose, H5Sclose.
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*
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* Created: May 15 2000
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* Programmer: Chee Wai LEE
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*
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* Modification History
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* --------------------
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*
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* 19 May 2000, Bill Wendling
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* Changed so that it creates its own HDF5 file and removes it at cleanup
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* time.
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*
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********************************************************************/
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#include "ttsafe.h"
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#ifdef H5_HAVE_THREADSAFE
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#ifndef H5_HAVE_WIN_THREADS
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#define FILENAME "ttsafe_cancel.h5"
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#define DATASETNAME "commonname"
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void *tts_cancel_thread(void *);
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void tts_cancel_barrier(void);
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herr_t tts_cancel_callback(void *, hid_t, unsigned , const hsize_t *, void *);
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void cancellation_cleanup(void *);
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hid_t cancel_file;
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typedef struct cleanup_struct {
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hid_t dataset;
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hid_t datatype;
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hid_t dataspace;
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} cancel_cleanup_t;
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pthread_t childthread;
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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void tts_cancel(void)
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{
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pthread_attr_t attribute;
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hid_t dataset;
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int buffer;
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int ret;
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/* make thread scheduling global */
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ret=pthread_attr_init(&attribute);
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assert(ret==0);
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#ifdef H5_HAVE_SYSTEM_SCOPE_THREADS
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ret=pthread_attr_setscope(&attribute, PTHREAD_SCOPE_SYSTEM);
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assert(ret==0);
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#endif /* H5_HAVE_SYSTEM_SCOPE_THREADS */
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/* Initialize mutex & condition variables */
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ret=pthread_mutex_init(&mutex,NULL);
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assert(ret==0);
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ret=pthread_cond_init(&cond,NULL);
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assert(ret==0);
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/*
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* Create a hdf5 file using H5F_ACC_TRUNC access, default file
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* creation plist and default file access plist
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*/
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cancel_file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
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assert(cancel_file>=0);
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ret=pthread_create(&childthread, &attribute, tts_cancel_thread, NULL);
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assert(ret==0);
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tts_cancel_barrier();
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ret=pthread_cancel(childthread);
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assert(ret==0);
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dataset = H5Dopen2(cancel_file, DATASETNAME, H5P_DEFAULT);
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assert(dataset>=0);
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ret=H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &buffer);
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assert(ret>=0);
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if (buffer != 11)
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TestErrPrintf("operation unsuccessful with value at %d instead of 11\n", buffer);
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ret=H5Dclose(dataset);
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assert(ret>=0);
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ret=H5Fclose(cancel_file);
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assert(ret>=0);
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/* Destroy the thread attribute */
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ret=pthread_attr_destroy(&attribute);
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assert(ret==0);
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}
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void *tts_cancel_thread(void H5_ATTR_UNUSED *arg)
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{
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int datavalue;
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int buffer;
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hid_t dataspace, datatype, dataset;
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hsize_t dimsf[1]; /* dataset dimensions */
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cancel_cleanup_t *cleanup_structure;
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int ret;
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/* define dataspace for dataset */
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dimsf[0] = 1;
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dataspace = H5Screate_simple(1, dimsf, NULL);
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assert(dataspace >= 0);
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/* define datatype for the data using native little endian integers */
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datatype = H5Tcopy(H5T_NATIVE_INT);
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assert(datatype >= 0);
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ret = H5Tset_order(datatype, H5T_ORDER_LE);
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assert(ret >= 0);
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/* create a new dataset within the file */
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dataset = H5Dcreate2(cancel_file, DATASETNAME, datatype, dataspace, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
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assert(dataset >= 0);
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/* If thread is cancelled, make cleanup call */
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cleanup_structure = (cancel_cleanup_t*)HDmalloc(sizeof(cancel_cleanup_t));
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cleanup_structure->dataset = dataset;
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cleanup_structure->datatype = datatype;
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cleanup_structure->dataspace = dataspace;
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pthread_cleanup_push(cancellation_cleanup, cleanup_structure);
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datavalue = 1;
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ret=H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &datavalue);
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assert(ret>=0);
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ret=H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &buffer);
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assert(ret>=0);
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ret=H5Diterate(&buffer, H5T_NATIVE_INT, dataspace, tts_cancel_callback, &dataset);
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assert(ret>=0);
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HDsleep(3);
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datavalue = 100;
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ret=H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &datavalue);
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assert(ret>=0);
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ret=H5Dclose(dataset);
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assert(ret>=0);
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ret=H5Tclose(datatype);
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assert(ret>=0);
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ret=H5Sclose(dataspace);
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assert(ret>=0);
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/*
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* Required by pthreads. The argument 0 pops the stack but does not
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* execute the cleanup routine.
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*/
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pthread_cleanup_pop(0);
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return NULL;
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}
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herr_t tts_cancel_callback(void *elem, hid_t H5_ATTR_UNUSED type_id, unsigned H5_ATTR_UNUSED ndim,
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const hsize_t H5_ATTR_UNUSED *point, void *operator_data)
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{
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int value = *(int *)elem;
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hid_t dataset = *(hid_t *)operator_data;
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int ret;
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tts_cancel_barrier();
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HDsleep(3);
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if (value != 1) {
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TestErrPrintf("Error! Element value should be 1 and not %d\n", value);
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return -1;
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}
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value += 10;
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ret=H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &value);
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assert(ret>=0);
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return 0;
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}
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/*
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* Need to perform the dataset, datatype and dataspace close that was never
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* performed because of thread cancellation
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*/
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void cancellation_cleanup(void *arg)
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{
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cancel_cleanup_t *cleanup_structure = (cancel_cleanup_t *)arg;
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int ret;
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ret=H5Dclose(cleanup_structure->dataset);
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assert(ret>=0);
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ret=H5Tclose(cleanup_structure->datatype);
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assert(ret>=0);
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ret=H5Sclose(cleanup_structure->dataspace);
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assert(ret>=0);
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/* retained for debugging */
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/* print_func("cancellation noted, cleaning up ... \n"); */
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}
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/*
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* Artificial (and specific to this test) barrier to keep track of whether
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* both the main and child threads have reached a point in the program.
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*/
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void tts_cancel_barrier(void)
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{
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static int count = 2;
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int ret;
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ret=pthread_mutex_lock(&mutex);
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assert(ret==0);
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if (count != 1) {
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count--;
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ret=pthread_cond_wait(&cond, &mutex);
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assert(ret==0);
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} else {
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ret=pthread_cond_signal(&cond);
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assert(ret==0);
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}
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ret=pthread_mutex_unlock(&mutex);
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assert(ret==0);
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}
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void cleanup_cancel(void)
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{
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HDunlink(FILENAME);
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}
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#endif /*H5_HAVE_WIN_THREADS*/
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#endif /*H5_HAVE_THREADSAFE*/
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