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/*
* The MIT License
*
* Copyright (C) 2016-2019 Alexander Saprykin <saprykin.spb@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* 'Software'), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#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,
NULL);
PUThread *reader_thr2 = p_uthread_create ((PUThreadFunc) reader_thread_func,
NULL,
TRUE,
NULL);
PUThread *writer_thr1 = p_uthread_create ((PUThreadFunc) writer_thread_func,
NULL,
TRUE,
NULL);
PUThread *writer_thr2 = p_uthread_create ((PUThreadFunc) writer_thread_func,
NULL,
TRUE,
NULL);
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()
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