Add async logger set-up (#47)

* Allow sync and async loggers to be created respectively

* Fix and use string for map key

* Change to TYPE instead of SYNC for stating sync/async logger

* Reuse function instead of using special enum find

* Add parsing of global and named thread pools

* Add mapping of thread pool to async logger

* Implement getting async overflow policy

* Split up impl of parsing logger

* Add unit tests for basic async loggers

* Rename unit_test.cpp to others.cpp

* Add logger with sink test cases

* Add global thread pool testing

* Change all versions to 0.3.0-pre

* Add test cases for localized thread pool

* Add test case for multiple thread pools

* Add to CHANGELOG

* Fix GCC 4.9 old syntax issue

* Add async into proper testing and put into README

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+- Add support for async logger. This fixes
+  ([#44](https://github.com/guangie88/spdlog_setup/issues/44))
+  - This makes logger accepts `type`, which takes in `sync` or `async`.
+    `sync` is default. Refer to the README for more details.
 - Change support to `spdlog` `v1.y.z` tag release, currently tested all `v1.0.0`
   to `v1.3.1` to be working. This fixes
   ([#26](https://github.com/guangie88/spdlog_setup/issues/26)).

CMakeLists.txt

@@ -99,9 +99,10 @@ install(
 endif()
 
 # spdlog_setup_unit_test
+FILE(GLOB unit_test_cpps src/unit_test/*.cpp)
 if(SPDLOG_SETUP_INCLUDE_UNIT_TESTS)
   add_executable(spdlog_setup_unit_test
-    src/unit_test/unit_test.cpp)
+    ${unit_test_cpps})
 
   set_property(TARGET spdlog_setup_unit_test PROPERTY CXX_STANDARD 11)
 

README.md

@@ -298,6 +298,31 @@ level = "trace"
 name = "console"
 sinks = ["console_st", "console_mt"]
 pattern = "succient"
+
+# Async
+
+[global_thread_pool]
+queue_size = 8192
+num_threads = 1
+
+[[thread_pool]]
+name = "tp"
+queue_size = 4096
+num_threads = 2
+
+[[logger]]
+type = "async"
+name = "global_async"
+sinks = ["console_mt"]
+pattern = "succient"
+
+[[logger]]
+type = "async"
+name = "local_async"
+sinks = ["console_mt"]
+pattern = "succient"
+thread_pool = "tp"
+overflow_policy = "overrun_oldest"  # block (default) | overrun_oldest
 ```
 
 ### Tagged-Base Pre-TOML File Configuration

config/log_conf_linux.toml

@@ -125,3 +125,28 @@ level = "trace"
 name = "console"
 sinks = ["console_st", "console_mt"]
 pattern = "succient"
+
+# Async
+
+[global_thread_pool]
+queue_size = 8192
+num_threads = 1
+
+[[thread_pool]]
+name = "tp"
+queue_size = 4096
+num_threads = 2
+
+[[logger]]
+type = "async"
+name = "global_async"
+sinks = ["console_mt"]
+pattern = "succient"
+
+[[logger]]
+type = "async"
+name = "local_async"
+sinks = ["console_mt"]
+pattern = "succient"
+thread_pool = "tp"
+overflow_policy = "overrun_oldest"  # block (default) | overrun_oldest

config/log_conf_win.toml

@@ -13,6 +13,20 @@
 # check out https://github.com/gabime/spdlog/wiki/3.-Custom-formatting
 global_pattern = "[%Y-%m-%dT%T%z] [%L] <%n>: %v"
 
+[global_thread_pool]
+queue_size = 8192
+num_threads = 1
+
+[[thread_pool]]
+name = "tp_1"
+queue_size = 4096
+num_threads = 2
+
+[[thread_pool]]
+name = "tp_2"
+queue_size = 2048
+num_threads = 4
+
 [[sink]]
 name = "console_st"
 type = "stdout_sink_st"
@@ -106,3 +120,28 @@ level = "trace"
 name = "console"
 sinks = ["console_st", "console_mt"]
 pattern = "succient"
+
+# Async
+
+[global_thread_pool]
+queue_size = 8192
+num_threads = 1
+
+[[thread_pool]]
+name = "tp"
+queue_size = 4096
+num_threads = 2
+
+[[logger]]
+type = "async"
+name = "global_async"
+sinks = ["console_mt"]
+pattern = "succient"
+
+[[logger]]
+type = "async"
+name = "local_async"
+sinks = ["console_mt"]
+pattern = "succient"
+thread_pool = "tp"
+overflow_policy = "overrun_oldest"  # block (default) | overrun_oldest

include/spdlog_setup/conf.h

@@ -110,7 +110,7 @@ void from_file_with_tag_replacement(
         cpptoml::parser parser(toml_ss);
         const auto config = parser.parse();
 
-        details::setup_impl(config);
+        details::setup(config);
     } catch (const setup_error &) {
         throw;
     } catch (const exception &e) {
@@ -158,7 +158,7 @@ auto from_file_and_override_with_tag_replacement(
             details::merge_config_root(merged_config, override_config);
         }
 
-        details::setup_impl(merged_config);
+        details::setup(merged_config);
         return has_override;
     } catch (const setup_error &) {
         throw;
@@ -174,7 +174,7 @@ inline void from_file(const std::string &toml_path) {
 
     try {
         const auto config = cpptoml::parse_file(toml_path);
-        details::setup_impl(config);
+        details::setup(config);
     } catch (const exception &e) {
         throw setup_error(e.what());
     }
@@ -205,7 +205,7 @@ inline auto from_file_and_override(
             details::merge_config_root(merged_config, override_config);
         }
 
-        details::setup_impl(merged_config);
+        details::setup(merged_config);
         return has_override;
     } catch (const exception &e) {
         throw setup_error(e.what());