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-rw-r--r--3rdparty/asio/src/tests/unit/io_context_strand.cpp316
1 files changed, 316 insertions, 0 deletions
diff --git a/3rdparty/asio/src/tests/unit/io_context_strand.cpp b/3rdparty/asio/src/tests/unit/io_context_strand.cpp
new file mode 100644
index 00000000000..be03eb40dd2
--- /dev/null
+++ b/3rdparty/asio/src/tests/unit/io_context_strand.cpp
@@ -0,0 +1,316 @@
+//
+// io_context_strand.cpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2024 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+// Disable autolinking for unit tests.
+#if !defined(BOOST_ALL_NO_LIB)
+#define BOOST_ALL_NO_LIB 1
+#endif // !defined(BOOST_ALL_NO_LIB)
+
+// Test that header file is self-contained.
+#include "asio/io_context_strand.hpp"
+
+#include <functional>
+#include <sstream>
+#include "asio/io_context.hpp"
+#include "asio/dispatch.hpp"
+#include "asio/post.hpp"
+#include "asio/thread.hpp"
+#include "unit_test.hpp"
+
+#if defined(ASIO_HAS_BOOST_DATE_TIME)
+# include "asio/deadline_timer.hpp"
+#else // defined(ASIO_HAS_BOOST_DATE_TIME)
+# include "asio/steady_timer.hpp"
+#endif // defined(ASIO_HAS_BOOST_DATE_TIME)
+
+using namespace asio;
+
+namespace bindns = std;
+
+#if defined(ASIO_HAS_BOOST_DATE_TIME)
+typedef deadline_timer timer;
+namespace chronons = boost::posix_time;
+#else // defined(ASIO_HAS_BOOST_DATE_TIME)
+typedef steady_timer timer;
+namespace chronons = asio::chrono;
+#endif // defined(ASIO_HAS_BOOST_DATE_TIME)
+
+void increment(int* count)
+{
+ ++(*count);
+}
+
+void increment_without_lock(io_context::strand* s, int* count)
+{
+ ASIO_CHECK(!s->running_in_this_thread());
+
+ int original_count = *count;
+
+ dispatch(*s, bindns::bind(increment, count));
+
+ // No other functions are currently executing through the locking dispatcher,
+ // so the previous call to dispatch should have successfully nested.
+ ASIO_CHECK(*count == original_count + 1);
+}
+
+void increment_with_lock(io_context::strand* s, int* count)
+{
+ ASIO_CHECK(s->running_in_this_thread());
+
+ int original_count = *count;
+
+ dispatch(*s, bindns::bind(increment, count));
+
+ // The current function already holds the strand's lock, so the
+ // previous call to dispatch should have successfully nested.
+ ASIO_CHECK(*count == original_count + 1);
+}
+
+void sleep_increment(io_context* ioc, int* count)
+{
+ timer t(*ioc, chronons::seconds(2));
+ t.wait();
+
+ ++(*count);
+}
+
+void increment_by_a(int* count, int a)
+{
+ (*count) += a;
+}
+
+void increment_by_a_b(int* count, int a, int b)
+{
+ (*count) += a + b;
+}
+
+void increment_by_a_b_c(int* count, int a, int b, int c)
+{
+ (*count) += a + b + c;
+}
+
+void increment_by_a_b_c_d(int* count, int a, int b, int c, int d)
+{
+ (*count) += a + b + c + d;
+}
+
+void start_sleep_increments(io_context* ioc, io_context::strand* s, int* count)
+{
+ // Give all threads a chance to start.
+ timer t(*ioc, chronons::seconds(2));
+ t.wait();
+
+ // Start three increments.
+ post(*s, bindns::bind(sleep_increment, ioc, count));
+ post(*s, bindns::bind(sleep_increment, ioc, count));
+ post(*s, bindns::bind(sleep_increment, ioc, count));
+}
+
+void throw_exception()
+{
+ throw 1;
+}
+
+void io_context_run(io_context* ioc)
+{
+ ioc->run();
+}
+
+void strand_test()
+{
+ io_context ioc;
+ io_context::strand s(ioc);
+ int count = 0;
+
+ post(ioc, bindns::bind(increment_without_lock, &s, &count));
+
+ // No handlers can be called until run() is called.
+ ASIO_CHECK(count == 0);
+
+ ioc.run();
+
+ // The run() call will not return until all work has finished.
+ ASIO_CHECK(count == 1);
+
+ count = 0;
+ ioc.restart();
+ post(s, bindns::bind(increment_with_lock, &s, &count));
+
+ // No handlers can be called until run() is called.
+ ASIO_CHECK(count == 0);
+
+ ioc.run();
+
+ // The run() call will not return until all work has finished.
+ ASIO_CHECK(count == 1);
+
+ count = 0;
+ ioc.restart();
+ post(ioc, bindns::bind(start_sleep_increments, &ioc, &s, &count));
+ thread thread1(bindns::bind(io_context_run, &ioc));
+ thread thread2(bindns::bind(io_context_run, &ioc));
+
+ // Check all events run one after another even though there are two threads.
+ timer timer1(ioc, chronons::seconds(3));
+ timer1.wait();
+ ASIO_CHECK(count == 0);
+#if defined(ASIO_HAS_BOOST_DATE_TIME)
+ timer1.expires_at(timer1.expires_at() + chronons::seconds(2));
+#else // defined(ASIO_HAS_BOOST_DATE_TIME)
+ timer1.expires_at(timer1.expiry() + chronons::seconds(2));
+#endif // defined(ASIO_HAS_BOOST_DATE_TIME)
+ timer1.wait();
+ ASIO_CHECK(count == 1);
+#if defined(ASIO_HAS_BOOST_DATE_TIME)
+ timer1.expires_at(timer1.expires_at() + chronons::seconds(2));
+#else // defined(ASIO_HAS_BOOST_DATE_TIME)
+ timer1.expires_at(timer1.expiry() + chronons::seconds(2));
+#endif // defined(ASIO_HAS_BOOST_DATE_TIME)
+ timer1.wait();
+ ASIO_CHECK(count == 2);
+
+ thread1.join();
+ thread2.join();
+
+ // The run() calls will not return until all work has finished.
+ ASIO_CHECK(count == 3);
+
+ count = 0;
+ int exception_count = 0;
+ ioc.restart();
+ post(s, throw_exception);
+ post(s, bindns::bind(increment, &count));
+ post(s, bindns::bind(increment, &count));
+ post(s, throw_exception);
+ post(s, bindns::bind(increment, &count));
+
+ // No handlers can be called until run() is called.
+ ASIO_CHECK(count == 0);
+ ASIO_CHECK(exception_count == 0);
+
+ for (;;)
+ {
+ try
+ {
+ ioc.run();
+ break;
+ }
+ catch (int)
+ {
+ ++exception_count;
+ }
+ }
+
+ // The run() calls will not return until all work has finished.
+ ASIO_CHECK(count == 3);
+ ASIO_CHECK(exception_count == 2);
+
+ count = 0;
+ ioc.restart();
+
+ // Check for clean shutdown when handlers posted through an orphaned strand
+ // are abandoned.
+ {
+ io_context::strand s2(ioc);
+ post(s2, bindns::bind(increment, &count));
+ post(s2, bindns::bind(increment, &count));
+ post(s2, bindns::bind(increment, &count));
+ }
+
+ // No handlers can be called until run() is called.
+ ASIO_CHECK(count == 0);
+}
+
+void strand_wrap_test()
+{
+#if !defined(ASIO_NO_DEPRECATED)
+ io_context ioc;
+ io_context::strand s(ioc);
+ int count = 0;
+
+ s.wrap(bindns::bind(increment, &count))();
+
+ // No handlers can be called until run() is called.
+ ASIO_CHECK(count == 0);
+
+ ioc.restart();
+ ioc.run();
+
+ // The run() calls will not return until all work has finished.
+ ASIO_CHECK(count == 1);
+
+ count = 0;
+ s.wrap(increment)(&count);
+
+ // No handlers can be called until run() is called.
+ ASIO_CHECK(count == 0);
+
+ ioc.restart();
+ ioc.run();
+
+ // The run() calls will not return until all work has finished.
+ ASIO_CHECK(count == 1);
+
+ count = 0;
+ s.wrap(increment_by_a)(&count, 1);
+
+ // No handlers can be called until run() is called.
+ ASIO_CHECK(count == 0);
+
+ ioc.restart();
+ ioc.run();
+
+ // The run() calls will not return until all work has finished.
+ ASIO_CHECK(count == 1);
+
+ count = 0;
+ s.wrap(increment_by_a_b)(&count, 1, 2);
+
+ // No handlers can be called until run() is called.
+ ASIO_CHECK(count == 0);
+
+ ioc.restart();
+ ioc.run();
+
+ // The run() calls will not return until all work has finished.
+ ASIO_CHECK(count == 3);
+
+ count = 0;
+ s.wrap(increment_by_a_b_c)(&count, 1, 2, 3);
+
+ // No handlers can be called until run() is called.
+ ASIO_CHECK(count == 0);
+
+ ioc.restart();
+ ioc.run();
+
+ // The run() calls will not return until all work has finished.
+ ASIO_CHECK(count == 6);
+
+ count = 0;
+ s.wrap(increment_by_a_b_c_d)(&count, 1, 2, 3, 4);
+
+ // No handlers can be called until run() is called.
+ ASIO_CHECK(count == 0);
+
+ ioc.restart();
+ ioc.run();
+
+ // The run() calls will not return until all work has finished.
+ ASIO_CHECK(count == 10);
+#endif // !defined(ASIO_NO_DEPRECATED)
+}
+
+ASIO_TEST_SUITE
+(
+ "strand",
+ ASIO_TEST_CASE(strand_test)
+ ASIO_TEST_CASE(strand_wrap_test)
+)