1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/********************************************************************
*
* Testing thread safety. Thread Cancellation safety
* -------------------------------------------------
*
* The main thread spawns a child to perform a series of dataset writes
* to a hdf5 file. The main thread and child thread synchronizes within
* a callback function called during a H5Diterate call afterwhich the
* main thread attempts to cancel the child thread.
*
* The cancellation should only work after the child thread has safely
* left the H5Diterate call.
*
* Temporary files generated:
* ttsafe_cancel.h5
*
* Created: May 15 2000
* Programmer: Chee Wai LEE
*
********************************************************************/
#include "ttsafe.h"
#ifdef H5_HAVE_THREADSAFE
#ifndef H5_HAVE_WIN_THREADS
#define FILENAME "ttsafe_cancel.h5"
#define DATASETNAME "commonname"
void *tts_cancel_thread(void *);
void tts_cancel_barrier(void);
herr_t tts_cancel_callback(void *, hid_t, unsigned , const hsize_t *, void *);
void cancellation_cleanup(void *);
hid_t cancel_file;
typedef struct cleanup_struct {
hid_t dataset;
hid_t datatype;
hid_t dataspace;
} cancel_cleanup_t;
pthread_t childthread;
pthread_mutex_t mutex;
pthread_cond_t cond;
void
tts_cancel(void)
{
pthread_attr_t attribute;
hid_t dataset;
int buffer;
int ret;
/* 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 */
/* Initialize mutex & condition variables */
ret=pthread_mutex_init(&mutex,NULL);
assert(ret==0);
ret=pthread_cond_init(&cond,NULL);
assert(ret==0);
/*
* Create a hdf5 file using H5F_ACC_TRUNC access, default file
* creation plist and default file access plist
*/
cancel_file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
assert(cancel_file>=0);
ret=pthread_create(&childthread, &attribute, tts_cancel_thread, NULL);
assert(ret==0);
tts_cancel_barrier();
ret=pthread_cancel(childthread);
assert(ret==0);
dataset = H5Dopen2(cancel_file, DATASETNAME, H5P_DEFAULT);
assert(dataset>=0);
ret=H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &buffer);
assert(ret>=0);
if (buffer != 11)
TestErrPrintf("operation unsuccessful with value at %d instead of 11\n", buffer);
ret=H5Dclose(dataset);
assert(ret>=0);
ret=H5Fclose(cancel_file);
assert(ret>=0);
/* Destroy the thread attribute */
ret=pthread_attr_destroy(&attribute);
assert(ret==0);
} /* end tts_cancel() */
void *
tts_cancel_thread(void H5_ATTR_UNUSED *arg)
{
hid_t dataspace = H5I_INVALID_HID;
hid_t datatype = H5I_INVALID_HID;
hid_t dataset = H5I_INVALID_HID;
int datavalue;
int buffer;
hsize_t dimsf[1]; /* dataset dimensions */
cancel_cleanup_t *cleanup_structure;
herr_t status;
/* define dataspace for dataset */
dimsf[0] = 1;
dataspace = H5Screate_simple(1, dimsf, NULL);
CHECK(dataspace, H5I_INVALID_HID, "H5Screate_simple");
/* define datatype for the data using native little endian integers */
datatype = H5Tcopy(H5T_NATIVE_INT);
CHECK(datatype, H5I_INVALID_HID, "H5Tcopy");
status = H5Tset_order(datatype, H5T_ORDER_LE);
CHECK(status, FAIL, "H5Tset_order");
/* create a new dataset within the file */
dataset = H5Dcreate2(cancel_file, DATASETNAME, datatype, dataspace, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
CHECK(dataset, H5I_INVALID_HID, "H5Dcreate2");
/* If thread is cancelled, make cleanup call */
cleanup_structure = (cancel_cleanup_t*)HDmalloc(sizeof(cancel_cleanup_t));
cleanup_structure->dataset = dataset;
cleanup_structure->datatype = datatype;
cleanup_structure->dataspace = dataspace;
pthread_cleanup_push(cancellation_cleanup, cleanup_structure);
datavalue = 1;
status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &datavalue);
CHECK(status, FAIL, "H5Dwrite");
status = H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &buffer);
CHECK(status, FAIL, "H5Dread");
status = H5Diterate(&buffer, H5T_NATIVE_INT, dataspace, tts_cancel_callback, &dataset);
CHECK(status, FAIL, "H5Diterate");
HDsleep(3);
datavalue = 100;
status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &datavalue);
CHECK(status, FAIL, "H5Dwrite");
status = H5Dclose(dataset);
CHECK(status, FAIL, "H5Dclose");
status = H5Tclose(datatype);
CHECK(status, FAIL, "H5Tclose");
status = H5Sclose(dataspace);
CHECK(status, FAIL, "H5Sclose");
/*
* Required by pthreads. The argument 0 pops the stack but does not
* execute the cleanup routine.
*/
pthread_cleanup_pop(0);
return NULL;
} /* end tts_cancel_thread() */
herr_t
tts_cancel_callback(void *elem, hid_t H5_ATTR_UNUSED type_id, unsigned H5_ATTR_UNUSED ndim,
const hsize_t H5_ATTR_UNUSED *point, void *operator_data)
{
hid_t dataset = *(hid_t *)operator_data;
int value = *(int *)elem;
herr_t status;
tts_cancel_barrier();
HDsleep(3);
if (value != 1) {
TestErrPrintf("Error! Element value should be 1 and not %d\n", value);
return FAIL;
}
value += 10;
status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, &value);
CHECK(status, FAIL, "H5Dwrite");
return SUCCEED;
} /* end tts_cancel_callback() */
/*
* Need to perform the dataset, datatype and dataspace close that was never
* performed because of thread cancellation
*/
void
cancellation_cleanup(void *arg)
{
cancel_cleanup_t *cleanup_structure = (cancel_cleanup_t *)arg;
herr_t status;
status = H5Dclose(cleanup_structure->dataset);
CHECK(status, FAIL, "H5Dclose");
status = H5Tclose(cleanup_structure->datatype);
CHECK(status, FAIL, "H5Tclose");
status = H5Sclose(cleanup_structure->dataspace);
CHECK(status, FAIL, "H5Sclose");
/* retained for debugging */
/* print_func("cancellation noted, cleaning up ... \n"); */
} /* end cancellation_cleanup() */
/*
* Artificial (and specific to this test) barrier to keep track of whether
* both the main and child threads have reached a point in the program.
*/
void
tts_cancel_barrier(void)
{
static int count = 2;
int status;
status = pthread_mutex_lock(&mutex);
VERIFY(status, 0, "pthread_mutex_lock");
if (count != 1) {
count--;
status = pthread_cond_wait(&cond, &mutex);
VERIFY(status, 0, "pthread_cond_wait");
}
else {
status = pthread_cond_signal(&cond);
VERIFY(status, 0, "pthread_cond_signal");
}
status = pthread_mutex_unlock(&mutex);
VERIFY(status, 0, "pthread_mutex_unlock");
} /* end tts_cancel_barrier() */
void cleanup_cancel(void)
{
HDunlink(FILENAME);
}
#endif /*H5_HAVE_WIN_THREADS*/
#endif /*H5_HAVE_THREADSAFE*/
|