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/**
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
#include <aws/common/clock.h>
#include <aws/common/promise.h>
#include <aws/common/thread.h>
#include <aws/testing/aws_test_harness.h>
struct promise_test_work {
struct aws_allocator *allocator;
struct aws_promise *promise;
uint64_t work_time;
int error_code;
void *value;
void (*dtor)(void *);
};
static void s_promise_test_worker(void *data) {
struct promise_test_work *work = data;
aws_promise_acquire(work->promise);
aws_thread_current_sleep(work->work_time);
if (work->error_code) {
aws_promise_fail(work->promise, work->error_code);
} else {
aws_promise_complete(work->promise, work->value, work->dtor);
}
aws_promise_release(work->promise);
}
static struct aws_thread s_promise_test_launch_worker(struct promise_test_work *work) {
const struct aws_thread_options *thread_options = aws_default_thread_options();
AWS_FATAL_ASSERT(thread_options);
struct aws_thread worker_thread;
AWS_FATAL_ASSERT(aws_thread_init(&worker_thread, work->allocator) == AWS_OP_SUCCESS);
AWS_FATAL_ASSERT(aws_thread_launch(&worker_thread, s_promise_test_worker, work, thread_options) == AWS_OP_SUCCESS);
return worker_thread;
}
struct pmr_payload {
struct aws_allocator *allocator;
};
void s_promise_test_free(void *ptr) {
struct pmr_payload *payload = ptr;
aws_mem_release(payload->allocator, payload);
}
static int s_promise_test_wait_forever(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
struct aws_promise *promise = aws_promise_new(allocator);
ASSERT_NOT_NULL(promise);
struct pmr_payload *payload = aws_mem_acquire(allocator, 42);
payload->allocator = allocator;
struct promise_test_work work = {
.allocator = allocator,
.promise = promise,
.work_time = 2 * 1000 * 1000,
.value = payload,
.dtor = s_promise_test_free,
};
struct aws_thread worker_thread = s_promise_test_launch_worker(&work);
aws_promise_wait(promise);
ASSERT_SUCCESS(aws_thread_join(&worker_thread));
aws_promise_release(promise);
return 0;
}
AWS_TEST_CASE(promise_test_wait_forever, s_promise_test_wait_forever)
static int s_promise_test_wait_for_a_bit(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
struct aws_promise *promise = aws_promise_new(allocator);
ASSERT_NOT_NULL(promise);
struct promise_test_work work = {
.allocator = allocator,
.promise = promise,
.work_time = 3 * 1000 * 1000,
};
struct aws_thread worker_thread = s_promise_test_launch_worker(&work);
/* wait until the worker finishes, in 500ms intervals */
while (!aws_promise_wait_for(promise, 500))
;
ASSERT_TRUE(aws_promise_error_code(promise) == 0);
ASSERT_NULL(aws_promise_value(promise));
ASSERT_SUCCESS(aws_thread_join(&worker_thread));
aws_promise_release(promise);
return 0;
}
AWS_TEST_CASE(promise_test_wait_for_a_bit, s_promise_test_wait_for_a_bit)
static int s_promise_test_finish_immediately(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
struct aws_promise *promise = aws_promise_new(allocator);
ASSERT_NOT_NULL(promise);
struct promise_test_work work = {
.allocator = allocator,
.promise = promise,
.work_time = 0,
};
struct aws_thread worker_thread = s_promise_test_launch_worker(&work);
aws_promise_wait(promise);
ASSERT_TRUE(aws_promise_error_code(promise) == 0);
ASSERT_NULL(aws_promise_value(promise));
aws_promise_release(promise);
ASSERT_SUCCESS(aws_thread_join(&worker_thread));
return 0;
}
AWS_TEST_CASE(promise_test_finish_immediately, s_promise_test_finish_immediately)
static int s_promise_test_finish_before_wait(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
struct aws_promise *promise = aws_promise_new(allocator);
ASSERT_NOT_NULL(promise);
aws_promise_fail(promise, 1024);
aws_promise_wait(promise);
ASSERT_TRUE(aws_promise_error_code(promise) == 1024);
ASSERT_NULL(aws_promise_value(promise));
aws_promise_release(promise);
return 0;
}
AWS_TEST_CASE(promise_test_finish_before_wait, s_promise_test_finish_before_wait)
void s_promise_test_waiter(void *data) {
struct promise_test_work *work = data;
aws_promise_acquire(work->promise);
/* sleep 0.2 seconds */
aws_thread_current_sleep(1000 * 1000 * 2);
aws_promise_wait(work->promise);
AWS_FATAL_ASSERT(aws_promise_error_code(work->promise) == 0);
aws_promise_release(work->promise);
}
static int s_promise_test_multiple_waiters(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
struct aws_promise *promise = aws_promise_new(allocator);
ASSERT_NOT_NULL(promise);
struct promise_test_work work = {
.allocator = allocator,
.promise = promise,
.work_time = 2 * 1000 * 1000,
.value = promise,
};
struct aws_thread threads[8];
const struct aws_thread_options *worker_options = aws_default_thread_options();
for (int idx = 0; idx < AWS_ARRAY_SIZE(threads); ++idx) {
aws_thread_init(&threads[idx], allocator);
aws_thread_launch(&threads[idx], s_promise_test_waiter, &work, worker_options);
}
aws_thread_current_sleep(1000 * 1000 * 4);
aws_promise_complete(promise, promise, NULL);
aws_promise_release(promise);
for (int idx = 0; idx < AWS_ARRAY_SIZE(threads); ++idx) {
ASSERT_SUCCESS(aws_thread_join(&threads[idx]));
}
return 0;
}
AWS_TEST_CASE(promise_test_multiple_waiters, s_promise_test_multiple_waiters)
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