11 files changed, 43 insertions, 0 deletions
diff --git a/utils/libservice/include/libservice/common.hpp b/utils/libservice/include/libservice/common.hpp
index 32e2a50..3c32966 100644
--- a/utils/libservice/include/libservice/common.hpp
+++ b/utils/libservice/include/libservice/common.hpp
@@ -1,4 +1,5 @@
 /**
+ * \file
  * \author Egor Tensin <Egor.Tensin@gmail.com>
  * \date 2015
  * \copyright This file is licensed under the terms of the MIT License.
diff --git a/utils/libservice/include/libservice/interface.hpp b/utils/libservice/include/libservice/interface.hpp
index 058470c..53751b2 100644
--- a/utils/libservice/include/libservice/interface.hpp
+++ b/utils/libservice/include/libservice/interface.hpp
@@ -1,4 +1,5 @@
 /**
+ * \file
  * \author Egor Tensin <Egor.Tensin@gmail.com>
  * \date 2015
  * \copyright This file is licensed under the terms of the MIT License.
diff --git a/utils/libservice/include/libservice/service.hpp b/utils/libservice/include/libservice/service.hpp
index a14f0e2..d350c91 100644
--- a/utils/libservice/include/libservice/service.hpp
+++ b/utils/libservice/include/libservice/service.hpp
@@ -20,6 +20,9 @@ namespace libservice
     class Service
     {
     public:
+        static bool does_exist(const ServiceManager&,
+                               const std::string& name);
+
         static Service open(const ServiceManager&,
                             const std::string& name);
         static Service install(const ServiceManager&,
diff --git a/utils/libservice/include/libservice/service_manager.hpp b/utils/libservice/include/libservice/service_manager.hpp
index a2bb268..c39b99e 100644
--- a/utils/libservice/include/libservice/service_manager.hpp
+++ b/utils/libservice/include/libservice/service_manager.hpp
@@ -1,4 +1,5 @@
 /**
+ * \file
  * \author Egor Tensin <Egor.Tensin@gmail.com>
  * \date 2015
  * \copyright This file is licensed under the terms of the MIT License.
diff --git a/utils/libservice/include/libservice/singleton.hpp b/utils/libservice/include/libservice/singleton.hpp
index bd137e7..a9d55ad 100644
--- a/utils/libservice/include/libservice/singleton.hpp
+++ b/utils/libservice/include/libservice/singleton.hpp
@@ -1,4 +1,5 @@
 /**
+ * \file
  * \author Egor Tensin <Egor.Tensin@gmail.com>
  * \date 2015
  * \copyright This file is licensed under the terms of the MIT License.
diff --git a/utils/libservice/include/libservice/windows_error.hpp b/utils/libservice/include/libservice/windows_error.hpp
index 57730d5..907c7e7 100644
--- a/utils/libservice/include/libservice/windows_error.hpp
+++ b/utils/libservice/include/libservice/windows_error.hpp
@@ -1,4 +1,5 @@
 /**
+ * \file
  * \author Egor Tensin <Egor.Tensin@gmail.com>
  * \date 2015
  * \copyright This file is licensed under the terms of the MIT License.
diff --git a/utils/libservice/src/service.cpp b/utils/libservice/src/service.cpp
index 1f7cbef..efe645f 100644
--- a/utils/libservice/src/service.cpp
+++ b/utils/libservice/src/service.cpp
@@ -95,6 +95,31 @@ namespace libservice
                 throw std::system_error(ec, WinErrorCategory::get(), LIBSERVICE_ERROR_PREFIX);
             }
         }
+
+        bool does_service_exist(const ServiceManager& mgr,
+                                const std::string& name)
+        {
+            const auto raw = OpenService(static_cast<SC_HANDLE>(mgr),
+                                         name.c_str(),
+                                         SERVICE_QUERY_STATUS);
+
+            if (NULL != raw)
+            {
+                ServiceHandle handle(raw);
+                return true;
+            }
+
+            const auto ec = GetLastError();
+
+            switch (ec)
+            {
+                case ERROR_SERVICE_DOES_NOT_EXIST:
+                    return false;
+
+                default:
+                    throw std::system_error(ec, WinErrorCategory::get(), LIBSERVICE_ERROR_PREFIX);
+            }
+        }
         
         SERVICE_STATUS_PROCESS query_service_status(const ServiceHandle& handle)
         {
@@ -174,6 +199,12 @@ namespace libservice
         return Service(install_service(mgr, name, bin_path));
     }
 
+    bool Service::does_exist(const ServiceManager& mgr,
+                                     const std::string& name)
+    {
+        return does_service_exist(mgr, name);
+    }
+
     void Service::start() const
     {
         const auto state = query_service_state(m_handle);
diff --git a/utils/libservice/src/service_handle.cpp b/utils/libservice/src/service_handle.cpp
index 5356b50..21fb78c 100644
--- a/utils/libservice/src/service_handle.cpp
+++ b/utils/libservice/src/service_handle.cpp
@@ -1,4 +1,5 @@
 /**
+ * \file
  * \author Egor Tensin <Egor.Tensin@gmail.com>
  * \date 2015
  * \copyright This file is licensed under the terms of the MIT License.
diff --git a/utils/libservice/src/service_manager.cpp b/utils/libservice/src/service_manager.cpp
index 4888406..b3c0b96 100644
--- a/utils/libservice/src/service_manager.cpp
+++ b/utils/libservice/src/service_manager.cpp
@@ -1,4 +1,5 @@
 /**
+ * \file
  * \author Egor Tensin <Egor.Tensin@gmail.com>
  * \date 2015
  * \copyright This file is licensed under the terms of the MIT License.
diff --git a/utils/libservice/src/windows_error.cpp b/utils/libservice/src/windows_error.cpp
index 6cc7302..1e28345 100644
--- a/utils/libservice/src/windows_error.cpp
+++ b/utils/libservice/src/windows_error.cpp
@@ -1,4 +1,5 @@
 /**
+ * \file
  * \author Egor Tensin <Egor.Tensin@gmail.com>
  * \date 2015
  * \copyright This file is licensed under the terms of the MIT License.
diff --git a/utils/libservice/test/windows_error.cpp b/utils/libservice/test/windows_error.cpp
index f165681..461b4e6 100644
--- a/utils/libservice/test/windows_error.cpp
+++ b/utils/libservice/test/windows_error.cpp
@@ -1,4 +1,5 @@
 /**
+ * \file
  * \author Egor Tensin <Egor.Tensin@gmail.com>
  * \date 2015
  * \copyright This file is licensed under the terms of the MIT License.