ram_reply_t ramtest_join(ramtest_test_t *test_arg)
{
size_t i = 0;
ram_reply_t myreply = RAM_REPLY_OK;
size_t unused = 0;
RAM_FAIL_NOTNULL(test_arg);
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr,
"[0] i am waiting for my threads to finish...\n"));
for (i = 0; i < test_arg->ramtestt_params.ramtestp_threadcount; ++i)
{
ram_reply_t e = RAM_REPLY_INSANE;
RAM_FAIL_TRAP(ramthread_join(&e, test_arg->ramtestt_threads[i]));
if (RAM_REPLY_OK != e)
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr,
"[0] thread %zu replied with an unexpected failure (%d).\n",
i + 1, (int)e));
/* if i haven't yet recorded an error as my reply, do so now. this
* ensures that the primary symptom is recorded and not any echoes
* of the problem. */
RAM_FAIL_TRAP(ram_fail_accumulate(&myreply, e));
}
}
return myreply;
}
ram_reply_t ramtest_test(const ramtest_params_t *params_arg)
{
ram_reply_t e = RAM_REPLY_INSANE;
ramtest_test_t test = {0};
size_t unused = 0;
RAM_FAIL_NOTNULL(params_arg);
RAM_FAIL_TRAP(ramtest_describe(stderr, params_arg));
/* if a dry run has been specified, i'll quit now. */
if (params_arg->ramtestp_dryrun)
return RAM_REPLY_OK;
RAM_FAIL_TRAP(ramtest_inittest(&test, params_arg));
e = ramtest_test2(&test);
RAM_FAIL_TRAP(ram_fail_accumulate(&e, ramtest_fintest(&test)));
if (RAM_REPLY_OK == e)
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr,
"[0] the test succeeded.\n"));
return RAM_REPLY_OK;
}
else
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr,
"[0] the test failed (reply code %d).\n", e));
RAM_FAIL_TRAP(e);
return RAM_REPLY_INSANE;
}
}
ram_reply_t ramtest_start(ramtest_test_t *test_arg)
{
size_t i = 0;
size_t unused = 0;
RAM_FAIL_NOTNULL(test_arg);
for (i = 0; i < test_arg->ramtestt_params.ramtestp_threadcount; ++i)
{
ramtest_start_t *start = NULL;
const size_t threadid = i + 1;
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr,
"[0] starting thread %zu...\n", threadid));
/* i'm the sole producer of this memory; *ramtest_start()* is the sole
* consumer. */
start = (ramtest_start_t *)calloc(sizeof(*start), 1);
RAM_FAIL_EXPECT(RAM_REPLY_RESOURCEFAIL, NULL != start);
start->ramtests_test = test_arg;
start->ramtests_threadidx = i;
RAM_FAIL_TRAP(ramthread_mkthread(&test_arg->ramtestt_threads[i],
&ramtest_thread, start));
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr,
"[0] started thread %zu.\n", threadid));
}
return RAM_REPLY_OK;
}
ram_reply_t ramtest_test2(ramtest_test_t *test_arg)
{
size_t unused = 0;
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr,
"[0] beginning test...\n"));
RAM_FAIL_TRAP(ramtest_start(test_arg));
RAM_FAIL_TRAP(ramtest_join(test_arg));
return RAM_REPLY_OK;
}
ram_reply_t runtest2(const ramtest_params_t *params_arg,
extra_t *extra_arg)
{
ramtest_params_t testparams = {0};
size_t unused = 0;
testparams = *params_arg;
/* i am responsible for policing the minimum and maximum allocation
* size here. */
if (testparams.ramtestp_minsize < sizeof(void *) ||
testparams.ramtestp_maxsize < sizeof(void *))
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr,
"you cannot specify a size smaller than %zu bytes.\n",
sizeof(void *)));
return RAM_REPLY_INPUTFAIL;
}
/* TODO: shouldn't this test be moved into the framework? */
if (testparams.ramtestp_minsize > testparams.ramtestp_maxsize)
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr,
"please specify a minimum size (%zu bytes) that is smaller than "
"or equal to the maximum (%zu bytes).\n",
testparams.ramtestp_minsize, testparams.ramtestp_maxsize));
return RAM_REPLY_INPUTFAIL;
}
/* TODO: how do i determine the maximum allocation size ahead of time? */
testparams.ramtestp_extra = extra_arg;
testparams.ramtestp_acquire = &acquire;
testparams.ramtestp_release = &release;
testparams.ramtestp_query = &query;
testparams.ramtestp_flush = &flush;
testparams.ramtestp_check = ✓
RAM_FAIL_TRAP(ramtest_test(&testparams));
return RAM_REPLY_OK;
}
ram_reply_t ramtest_thread(void *arg)
{
ramtest_start_t *start = (ramtest_start_t *)arg;
ramtest_test_t *test = NULL;
size_t threadidx = 0, threadid = 0;
ram_reply_t e = RAM_REPLY_INSANE;
size_t unused = 0;
RAM_FAIL_NOTNULL(arg);
test = start->ramtests_test;
threadidx = start->ramtests_threadidx;
/* i'm the sole consumer of this memory; *ramtest_start()* is the sole
* producer. */
free(start);
threadid = threadidx + 1;
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr, "[%zu] testing...\n",
threadid));
e = ramtest_thread2(test, threadidx);
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr, "[%zu] finished.\n",
threadid));
return e;
}
int main(int argc, char *argv[])
{
ram_reply_t e = RAM_REPLY_INSANE;
size_t unused = 0;
e = main2(argc, argv);
if (RAM_REPLY_OK != e)
RAM_FAIL_TRAP(ramtest_fprintf(&unused,stderr, "fail (%d).", e));
if (RAM_REPLY_INPUTFAIL == e)
{
usage(e, argc, argv);
ram_fail_panic("unreachable code.");
return RAM_REPLY_INSANE;
}
else
return e;
}
ram_reply_t ramtest_describe(FILE *out_arg,
const ramtest_params_t *params_arg)
{
size_t unused = 0;
RAM_FAIL_NOTNULL(out_arg);
RAM_FAIL_NOTNULL(params_arg);
if (params_arg->ramtestp_dryrun)
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"you have specified the following test:\n\n"));
}
else
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"i will run the following test:\n\n"));
}
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"%zu allocation(s) (and corresponding deallocations).\n",
params_arg->ramtestp_alloccount));
if (1 == params_arg->ramtestp_threadcount)
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"this test will not be parallelized.\n"));
}
else
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"%zu parallel operation(s) allowed.\n",
params_arg->ramtestp_threadcount));
}
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"%d%% of the allocations will be managed by malloc() "
"and free().\n", params_arg->ramtestp_mallocchance));
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"allocations will not be smaller than %zu bytes.\n",
params_arg->ramtestp_minsize));
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"allocations will not be larger than %zu bytes.\n",
params_arg->ramtestp_maxsize));
if (params_arg->ramtestp_userngseed)
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"the random number generator will use seed %u.\n",
params_arg->ramtestp_rngseed));
}
else
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"the random number generator will use a randomly "
"selected seed.\n"));
}
#if RAM_WANT_OVERCONFIDENT
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"warning: this is an overconfident build, so the results cannot "
"be trusted. rebuild with RAMOPT_UNSUPPORTED_OVERCONFIDENT "
"#define'd as 0 if you wish to have reliable results.\n");
#endif
if (params_arg->ramtestp_dryrun)
{
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg,
"\nto run this test, omit the --dry-run option.\n"));
}
else
RAM_FAIL_TRAP(ramtest_fprintf(&unused, out_arg, "-----\n"));
return RAM_REPLY_OK;
}
ram_reply_t ramtest_inittest2(ramtest_test_t *test_arg,
const ramtest_params_t *params_arg)
{
size_t i = 0;
size_t seqlen = 0;
size_t maxthreads = 0;
size_t unused = 0;
RAM_FAIL_NOTNULL(params_arg);
RAM_FAIL_NOTZERO(params_arg->ramtestp_alloccount);
RAM_FAIL_EXPECT(RAM_REPLY_RANGEFAIL, params_arg->ramtestp_minsize > 0);
RAM_FAIL_EXPECT(RAM_REPLY_RANGEFAIL,
params_arg->ramtestp_minsize <= params_arg->ramtestp_maxsize);
RAM_FAIL_EXPECT(RAM_REPLY_RANGEFAIL, params_arg->ramtestp_mallocchance >= 0);
RAM_FAIL_EXPECT(RAM_REPLY_RANGEFAIL, params_arg->ramtestp_mallocchance <= 100);
RAM_FAIL_NOTNULL(params_arg->ramtestp_acquire);
RAM_FAIL_NOTNULL(params_arg->ramtestp_release);
RAM_FAIL_NOTNULL(params_arg->ramtestp_query);
/* *params_arg->ramtestp_flush* is allowed to be NULL. */
RAM_FAIL_NOTNULL(params_arg->ramtestp_check);
RAM_FAIL_TRAP(ramtest_maxthreadcount(&maxthreads));
RAM_FAIL_EXPECT(RAM_REPLY_DISALLOWED,
params_arg->ramtestp_threadcount <= maxthreads);
test_arg->ramtestt_params = *params_arg;
if (0 == test_arg->ramtestt_params.ramtestp_threadcount)
{
RAM_FAIL_TRAP(ramtest_defaultthreadcount(
&test_arg->ramtestt_params.ramtestp_threadcount));
}
test_arg->ramtestt_records =
calloc(test_arg->ramtestt_params.ramtestp_alloccount,
sizeof(*test_arg->ramtestt_records));
RAM_FAIL_EXPECT(RAM_REPLY_RESOURCEFAIL,
NULL != test_arg->ramtestt_records);
test_arg->ramtestt_threads =
calloc(test_arg->ramtestt_params.ramtestp_threadcount,
sizeof(*test_arg->ramtestt_threads));
RAM_FAIL_EXPECT(RAM_REPLY_RESOURCEFAIL,
NULL != test_arg->ramtestt_threads);
seqlen = test_arg->ramtestt_params.ramtestp_alloccount * 2;
test_arg->ramtestt_sequence = calloc(seqlen,
sizeof(*test_arg->ramtestt_sequence));
RAM_FAIL_EXPECT(RAM_REPLY_RESOURCEFAIL,
NULL != test_arg->ramtestt_sequence);
RAM_FAIL_TRAP(rammtx_mkmutex(&test_arg->ramtestt_mtx));
for (i = 0; i < test_arg->ramtestt_params.ramtestp_alloccount; ++i)
{
RAM_FAIL_TRAP(rammtx_mkmutex(
&test_arg->ramtestt_records[i].ramtestar_mtx));
}
/* the sequence array must contain two copies of each index into
* *test_arg->ramtestt_records*. the first represents an allocation.
* the second, a deallocation. */
for (i = 0; i < seqlen; ++i)
test_arg->ramtestt_sequence[i] = (i / 2);
/* i shuffle the sequence array to ensure a randomized order of
* operations. */
RAM_FAIL_TRAP(ramtest_shuffle(test_arg->ramtestt_sequence,
sizeof(test_arg->ramtestt_sequence[0]), seqlen));
if (!test_arg->ramtestt_params.ramtestp_userngseed)
test_arg->ramtestt_params.ramtestp_rngseed = (unsigned int)time(NULL);
srand(test_arg->ramtestt_params.ramtestp_rngseed);
RAM_FAIL_TRAP(ramtest_fprintf(&unused, stderr,
"[0] i seeded the random generator with the value %u.\n",
test_arg->ramtestt_params.ramtestp_rngseed));
test_arg->ramtestt_nextrec = 0;
return RAM_REPLY_OK;
}