async test

README.md

@@ -170,7 +170,7 @@ int main(int, char*[])
 
 void async_example()
 {
-    size_t q_size = 4096; //queue size must be power of 2
+    size_t q_size = 4096; 
     spd::set_async_mode(q_size);
     auto async_file = spd::daily_logger_st("async_file_logger", "logs/async_log.txt");
     for (int i = 0; i < 100; ++i)

bench/spdlog-async.cpp

@@ -25,8 +25,8 @@ int main(int argc, char *argv[])
 
     int howmany = 1000000;
 
-    spdlog::set_async_mode(1048576);
-    auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("file_logger", "logs/spdlog-bench-async.log", false);
+    spdlog::set_async_mode(1000000);
+    auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("file_logger", "logs/spdlog-bench-async.log", true);
     logger->set_pattern("[%Y-%m-%d %T.%F]: %L %t %v");
 
     std::cout << "To stop, press <Enter>" << std::endl;

example/bench.cpp

@@ -45,7 +45,7 @@ int main(int argc, char *argv[])
             threads = atoi(argv[2]);
         if (argc > 3)
             queue_size = atoi(argv[3]);
-
+        
         cout << "*******************************************************************************\n";
         cout << "Single thread, " << format(howmany) << " iterations" << endl;
         cout << "*******************************************************************************\n";

example/example.cpp

@@ -105,7 +105,7 @@ int main(int, char *[])
 
 void async_example()
 {
-    size_t q_size = 4096; // queue size must be power of 2
+    size_t q_size = 4096; 
     spdlog::set_async_mode(q_size);
     auto async_file = spd::daily_logger_st("async_file_logger", "logs/async_log.txt");
     for (int i = 0; i < 100; ++i)

tests/test_async.cpp

+#include "includes.h"
+#include "test_sink.h"
+
+template<class T>
+std::string log_info(const T &what, spdlog::level::level_enum logger_level = spdlog::level::info)
+{
+
+    std::ostringstream oss;
+    auto oss_sink = std::make_shared<spdlog::sinks::ostream_sink_mt>(oss);
+
+    spdlog::logger oss_logger("oss", oss_sink);
+    oss_logger.set_level(logger_level);
+    oss_logger.set_pattern("%v");
+    oss_logger.info(what);
+
+    return oss.str().substr(0, oss.str().length() - strlen(spdlog::details::os::default_eol));
+}
+
+TEST_CASE("basic async test ", "[async]")
+{
+    auto test_sink = std::make_shared<spdlog::sinks::test_sink_mt>();
+    size_t queue_size = 128;
+    size_t messages = 256;
+    auto logger = spdlog::create_async("as", test_sink, 128, spdlog::async_overflow_policy::block_retry);
+    for (size_t i = 0; i < messages; i++)
+    {
+        logger->info("Hello message #{}", i);
+    }
+
+    // the dtor wait for all messages in the queue to get processed
+    logger.reset();
+    spdlog::drop("as");
+    REQUIRE(test_sink->msg_counter() == messages);
+    REQUIRE(test_sink->flushed_msg_counter() == messages);
+}
+
+TEST_CASE("discard policy ", "[async]")
+{
+    auto test_sink = std::make_shared<spdlog::sinks::test_sink_mt>();
+    size_t queue_size = 2;
+    size_t messages = 1024;
+	spdlog::drop("as");
+    auto logger = spdlog::create_async("as", test_sink, queue_size, spdlog::async_overflow_policy::discard_log_msg);
+    for (size_t i = 0; i < messages; i++)
+    {
+        logger->info("Hello message #{}", i);
+    }
+
+    // the dtor wait for all messages in the queue to get processed
+    logger.reset();
+    spdlog::drop("as");
+    REQUIRE(test_sink->msg_counter() < messages);
+    REQUIRE(test_sink->flushed_msg_counter() < messages);
+}
+
+
+TEST_CASE("flush", "[async]")
+{
+    auto test_sink = std::make_shared<spdlog::sinks::test_sink_mt>();
+    size_t queue_size = 256;
+    size_t messages = 256;
+	spdlog::drop("as");
+	auto logger = std::make_shared<spdlog::async_logger>("as", test_sink, queue_size);     
+    for (size_t i = 0; i < messages; i++)
+    {
+        logger->info("Hello message #{}", i);
+    }
+
+    // the dtor wait for all messages in the queue to get processed
+	logger->flush();
+	std::this_thread::sleep_for(std::chrono::milliseconds(250));
+    REQUIRE(test_sink->msg_counter() == messages);
+    REQUIRE(test_sink->flushed_msg_counter() == messages);
+	
+	
+	REQUIRE(test_sink->flushed_msg_counter() == messages);
+	
+}
+
+TEST_CASE("multi threads", "[async]")
+{
+    auto test_sink = std::make_shared<spdlog::sinks::test_sink_mt>();
+    size_t queue_size = 128;
+    size_t messages = 256;
+    size_t n_threads = 10;	
+	auto logger = std::make_shared<spdlog::async_logger>("as", test_sink, queue_size);    
+
+    std::vector<std::thread> threads;
+    for (size_t i = 0; i < n_threads; i++)
+    {
+        threads.emplace_back([logger, messages] {
+            for (size_t j = 0; j < messages; j++)
+            {
+                logger->info("Hello message #{}", j);
+            }
+        });
+    }
+
+    for (auto &t : threads)
+    {
+        t.join();
+    }
+
+    // the dtor wait for all messages in the queue to get processed
+    logger.reset();    
+    REQUIRE(test_sink->msg_counter() == messages * n_threads);
+    REQUIRE(test_sink->flushed_msg_counter() == messages * n_threads);
+}
+
+
+TEST_CASE("to_file", "[async]")
+{
+	
+	prepare_logdir();	
+    size_t queue_size = 512;
+    size_t messages = 512;
+    size_t n_threads = 4;		
+	auto file_sink = std::make_shared<spdlog::sinks::simple_file_sink_mt>("logs/async_test.log", true);
+	auto logger = spdlog::create_async("as", file_sink, queue_size);
+	std::vector<std::thread> threads;
+    for (size_t i = 0; i < n_threads; i++)
+    {
+        threads.emplace_back([logger, messages] {
+            for (size_t j = 0; j < messages; j++)
+            {
+                logger->info("Hello message #{}", j);
+            }
+        });
+    }
+
+    for (auto &t : threads)
+    {
+        t.join();
+    }
+	logger.reset();
+	spdlog::drop("as");
+	REQUIRE(count_lines("logs/async_test.log") == messages * n_threads);	
+}
+
+