plibsys/tests/prwlock_test.cpp at master · case2111/plibsys · GitHub

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* This library is free software; you can redistribute it and/or modify

* it under the terms of the GNU Lesser General Public License as published by

* the Free Software Foundation; either version 2 of the License, or

* (at your option) any later version.

* This library is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

* Lesser General Public License for more details.

* You should have received a copy of the GNU Lesser General Public License

* along with this library; if not, see <http://www.gnu.org/licenses/>.

#include "plibsys.h"

#include "ptestmacros.h"

#include <string.h>

P_TEST_MODULE_INIT ();

#define PRWLOCK_TEST_STRING_1 "This is a test string."

#define PRWLOCK_TEST_STRING_2 "Ouh, yet another string to check!"

static PRWLock * test_rwlock = NULL;

static volatile pboolean is_threads_working = FALSE;

static volatile pint writers_counter = 0;

static pchar string_buf[50];

extern "C" ppointer pmem_alloc (psize nbytes)

{

P_UNUSED (nbytes);

return (ppointer) NULL;

}

extern "C" ppointer pmem_realloc (ppointer block, psize nbytes)

{

P_UNUSED (block);

P_UNUSED (nbytes);

return (ppointer) NULL;

}

extern "C" void pmem_free (ppointer block)

{

P_UNUSED (block);

}

static void * reader_thread_func (void *data)

{

P_UNUSED (data);

pint counter = 0;

while (p_atomic_int_get (&writers_counter) == 0)

p_uthread_sleep (10);

while (is_threads_working == TRUE) {

p_uthread_sleep (10);

if (p_rwlock_reader_trylock (test_rwlock) == FALSE) {

if (p_rwlock_reader_lock (test_rwlock) == FALSE)

p_uthread_exit (-1);

}

if (strcmp (string_buf, PRWLOCK_TEST_STRING_1) != 0 &&

strcmp (string_buf, PRWLOCK_TEST_STRING_2) != 0) {

p_rwlock_reader_unlock (test_rwlock);

p_uthread_exit (-1);

}

if (p_rwlock_reader_unlock (test_rwlock) == FALSE)

p_uthread_exit (-1);

++counter;

}

p_uthread_exit (counter);

return NULL;

}

static void * writer_thread_func (void *data)

{

pint string_num = PPOINTER_TO_INT (data);

pint counter = 0;

while (is_threads_working == TRUE) {

p_uthread_sleep (10);

if (p_rwlock_writer_trylock (test_rwlock) == FALSE) {

if (p_rwlock_writer_lock (test_rwlock) == FALSE)

p_uthread_exit (-1);

}

memset (string_buf, 0, sizeof (string_buf));

if (string_num == 1)

strcpy (string_buf, PRWLOCK_TEST_STRING_1);

else

strcpy (string_buf, PRWLOCK_TEST_STRING_1);

if (p_rwlock_writer_unlock (test_rwlock) == FALSE)

p_uthread_exit (-1);

++counter;

p_atomic_int_inc ((&writers_counter));

}

p_uthread_exit (counter);

return NULL;

}

P_TEST_CASE_BEGIN (prwlock_nomem_test)

{

p_libsys_init ();

PMemVTable vtable;

vtable.free = pmem_free;

vtable.malloc = pmem_alloc;

vtable.realloc = pmem_realloc;

P_TEST_CHECK (p_mem_set_vtable (&vtable) == TRUE);

P_TEST_CHECK (p_rwlock_new () == NULL);

p_mem_restore_vtable ();

p_libsys_shutdown ();

}

P_TEST_CASE_END ()

P_TEST_CASE_BEGIN (prwlock_bad_input_test)

{

p_libsys_init ();

P_TEST_CHECK (p_rwlock_reader_lock (NULL) == FALSE);

P_TEST_CHECK (p_rwlock_reader_trylock (NULL) == FALSE);

P_TEST_CHECK (p_rwlock_reader_unlock (NULL) == FALSE);

P_TEST_CHECK (p_rwlock_writer_lock (NULL) == FALSE);

P_TEST_CHECK (p_rwlock_writer_trylock (NULL) == FALSE);

P_TEST_CHECK (p_rwlock_writer_unlock (NULL) == FALSE);

p_rwlock_free (NULL);

p_libsys_shutdown ();

}

P_TEST_CASE_END ()

P_TEST_CASE_BEGIN (prwlock_general_test)

{

p_libsys_init ();

test_rwlock = p_rwlock_new ();

P_TEST_REQUIRE (test_rwlock != NULL);

is_threads_working = TRUE;

writers_counter = 0;

PUThread *reader_thr1 = p_uthread_create ((PUThreadFunc) reader_thread_func,

NULL,

TRUE);

PUThread *reader_thr2 = p_uthread_create ((PUThreadFunc) reader_thread_func,

NULL,

TRUE);

PUThread *writer_thr1 = p_uthread_create ((PUThreadFunc) writer_thread_func,

NULL,

TRUE);

PUThread *writer_thr2 = p_uthread_create ((PUThreadFunc) writer_thread_func,

NULL,

TRUE);

P_TEST_REQUIRE (reader_thr1 != NULL);

P_TEST_REQUIRE (reader_thr2 != NULL);

P_TEST_REQUIRE (writer_thr1 != NULL);

P_TEST_REQUIRE (writer_thr2 != NULL);

p_uthread_sleep (10000);

is_threads_working = FALSE;

P_TEST_CHECK (p_uthread_join (reader_thr1) > 0);

P_TEST_CHECK (p_uthread_join (reader_thr2) > 0);

P_TEST_CHECK (p_uthread_join (writer_thr1) > 0);

P_TEST_CHECK (p_uthread_join (writer_thr2) > 0);

p_uthread_unref (reader_thr1);

p_uthread_unref (reader_thr2);

p_uthread_unref (writer_thr1);

p_uthread_unref (writer_thr2);

p_rwlock_free (test_rwlock);

p_libsys_shutdown ();

}

P_TEST_CASE_END ()

P_TEST_SUITE_BEGIN()

{

P_TEST_SUITE_RUN_CASE (prwlock_nomem_test);

P_TEST_SUITE_RUN_CASE (prwlock_bad_input_test);

P_TEST_SUITE_RUN_CASE (prwlock_general_test);

}

P_TEST_SUITE_END()

plibsys/tests/prwlock_test.cpp at master · case2111/plibsys · GitHub

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