mirror of
https://github.com/HDFGroup/hdf5.git
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fd933f30b1
* Removes Programmer: and Date: fields * Fixes a few Modifications: fields leftover from previous work
251 lines
8.0 KiB
C
251 lines
8.0 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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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://www.hdfgroup.org/licenses. *
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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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********************************************************************/
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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
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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 H5_ATTR_NDEBUG_UNUSED 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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} /* end tts_cancel() */
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void *
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tts_cancel_thread(void H5_ATTR_UNUSED *arg)
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{
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hid_t dataspace = H5I_INVALID_HID;
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hid_t datatype = H5I_INVALID_HID;
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hid_t dataset = H5I_INVALID_HID;
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int datavalue;
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int buffer;
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hsize_t dimsf[1]; /* dataset dimensions */
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cancel_cleanup_t *cleanup_structure;
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herr_t status;
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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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CHECK(dataspace, H5I_INVALID_HID, "H5Screate_simple");
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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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CHECK(datatype, H5I_INVALID_HID, "H5Tcopy");
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status = H5Tset_order(datatype, H5T_ORDER_LE);
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CHECK(status, FAIL, "H5Tset_order");
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/* create a new dataset within the file */
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dataset =
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H5Dcreate2(cancel_file, DATASETNAME, datatype, dataspace, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
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CHECK(dataset, H5I_INVALID_HID, "H5Dcreate2");
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/* If thread is cancelled, make cleanup call */
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cleanup_structure = (cancel_cleanup_t *)malloc(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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status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &datavalue);
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CHECK(status, FAIL, "H5Dwrite");
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status = H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &buffer);
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CHECK(status, FAIL, "H5Dread");
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status = H5Diterate(&buffer, H5T_NATIVE_INT, dataspace, tts_cancel_callback, &dataset);
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CHECK(status, FAIL, "H5Diterate");
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HDsleep(3);
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datavalue = 100;
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status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &datavalue);
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CHECK(status, FAIL, "H5Dwrite");
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status = H5Dclose(dataset);
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CHECK(status, FAIL, "H5Dclose");
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status = H5Tclose(datatype);
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CHECK(status, FAIL, "H5Tclose");
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status = H5Sclose(dataspace);
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CHECK(status, FAIL, "H5Sclose");
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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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} /* end tts_cancel_thread() */
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herr_t
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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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hid_t dataset = *(hid_t *)operator_data;
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int value = *(int *)elem;
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herr_t status;
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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 FAIL;
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}
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value += 10;
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status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &value);
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CHECK(status, FAIL, "H5Dwrite");
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return SUCCEED;
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} /* end tts_cancel_callback() */
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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
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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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herr_t status;
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status = H5Dclose(cleanup_structure->dataset);
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CHECK(status, FAIL, "H5Dclose");
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status = H5Tclose(cleanup_structure->datatype);
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CHECK(status, FAIL, "H5Tclose");
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status = H5Sclose(cleanup_structure->dataspace);
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CHECK(status, FAIL, "H5Sclose");
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/* retained for debugging */
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/* print_func("cancellation noted, cleaning up ... \n"); */
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} /* end cancellation_cleanup() */
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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
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tts_cancel_barrier(void)
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{
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static int count = 2;
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int status;
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status = pthread_mutex_lock(&mutex);
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VERIFY(status, 0, "pthread_mutex_lock");
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if (count != 1) {
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count--;
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status = pthread_cond_wait(&cond, &mutex);
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VERIFY(status, 0, "pthread_cond_wait");
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}
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else {
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status = pthread_cond_signal(&cond);
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VERIFY(status, 0, "pthread_cond_signal");
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}
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status = pthread_mutex_unlock(&mutex);
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VERIFY(status, 0, "pthread_mutex_unlock");
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} /* end tts_cancel_barrier() */
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void
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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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