Add thread pool size to config

FossilOrigin-Name: e7a3187b94e5a277a7bb0126e6e599f5a788ec695e428440dc755aac71376081

config.sample.yaml

@@ -9,6 +9,7 @@ instance:
 
 http:
   port: 4050
+  thread_pool_size: 12
   
 database:
   db_type: "sqlite"

src/config/config_http.cpp

@@ -22,6 +22,7 @@
 void Config::load_http(Config::HTTP& cfg, YAML::Node& node)
 try {
     cfg.port = node["http"]["port"].as<unsigned>();
+    cfg.pool_size = node["http"]["thread_pool_size"].as<unsigned>();
 }
 catch(const YAML::BadConversion& err)
 {}

src/config/config_http.h

@@ -27,6 +27,7 @@ namespace Config
     struct HTTP
     {
         uint16_t port{8080};
+        uint16_t pool_size{8};
     };
 
     void load_http(Config::HTTP& cfg, YAML::Node& node);

src/http/microhttpd_server.cpp

@@ -22,6 +22,7 @@
 #include <utility>
 #include <microhttpd.h>
 #include <cerrno>
+#include "config/config_loader.h"
 #include "logger.h"
 #include "microhttpd_server.h"
 #include "http/mime.h"
@@ -183,6 +184,8 @@ void MicroHttpdServer::start()
                                       MHD_OPTION_NOTIFY_CONNECTION,
                                       request_completed,
                                       this,
+                                      MHD_OPTION_THREAD_POOL_SIZE,
+                                      Config::instance().config.http.pool_size,
                                       MHD_OPTION_END);
     if (!dm)
     {