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authorEgor Tensin <Egor.Tensin@gmail.com>2015-05-10 23:00:08 +0300
committerEgor Tensin <Egor.Tensin@gmail.com>2015-05-10 23:00:08 +0300
commit10e1921d30a66db85d8707e554e0eeb5efbb8b00 (patch)
tree4ceb7ceb63a54a3c7d63120ba23cd7d04b6237ce /utils/libservice/src
parentREADME update (diff)
downloadwindows7-drivers-10e1921d30a66db85d8707e554e0eeb5efbb8b00.tar.gz
windows7-drivers-10e1921d30a66db85d8707e554e0eeb5efbb8b00.zip
add service mgmt lib & utils
Diffstat (limited to 'utils/libservice/src')
-rw-r--r--utils/libservice/src/service.cpp235
-rw-r--r--utils/libservice/src/service_handle.cpp30
-rw-r--r--utils/libservice/src/service_manager.cpp48
-rw-r--r--utils/libservice/src/windows_error.cpp41
4 files changed, 354 insertions, 0 deletions
diff --git a/utils/libservice/src/service.cpp b/utils/libservice/src/service.cpp
new file mode 100644
index 0000000..1f7cbef
--- /dev/null
+++ b/utils/libservice/src/service.cpp
@@ -0,0 +1,235 @@
+/**
+ * \file
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ * See LICENSE.txt for details.
+ */
+
+#include "libservice/common.hpp"
+#include "libservice/service.hpp"
+#include "libservice/service_handle.hpp"
+#include "libservice/service_manager.hpp"
+#include "libservice/windows_error.hpp"
+
+#include <Windows.h>
+
+#include <string>
+#include <utility>
+#include <vector>
+
+namespace libservice
+{
+ namespace
+ {
+ ServiceHandle open_service(const ServiceManager& mgr, const std::string& name)
+ {
+ const auto raw = OpenServiceA(
+ static_cast<SC_HANDLE>(mgr),
+ name.c_str(),
+ SERVICE_ALL_ACCESS);
+
+ if (NULL == raw)
+ {
+ const auto ec = GetLastError();
+ throw std::system_error(ec, WinErrorCategory::get(), LIBSERVICE_ERROR_PREFIX);
+ }
+
+ return ServiceHandle(raw);
+ }
+
+ ServiceHandle install_service(
+ const ServiceManager& mgr,
+ const std::string& name,
+ const std::string& bin_path)
+ {
+ const auto raw = CreateServiceA(
+ static_cast<SC_HANDLE>(mgr),
+ name.c_str(),
+ name.c_str(),
+ SERVICE_ALL_ACCESS,
+ SERVICE_KERNEL_DRIVER,
+ SERVICE_DEMAND_START,
+ SERVICE_ERROR_NORMAL,
+ bin_path.c_str(),
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL);
+
+ if (NULL == raw)
+ {
+ const auto ec = GetLastError();
+ throw std::system_error(ec, WinErrorCategory::get(), LIBSERVICE_ERROR_PREFIX);
+ }
+
+ return ServiceHandle(raw);
+ }
+
+ void start_service(const ServiceHandle& handle)
+ {
+ if (!StartService(static_cast<SC_HANDLE>(handle), 0, NULL))
+ {
+ const auto ec = GetLastError();
+ throw std::system_error(ec, WinErrorCategory::get(), LIBSERVICE_ERROR_PREFIX);
+ }
+ }
+
+ void stop_service(const ServiceHandle& handle)
+ {
+ SERVICE_STATUS service_status;
+
+ if (!ControlService(static_cast<SC_HANDLE>(handle), SERVICE_CONTROL_STOP, &service_status))
+ {
+ const auto ec = GetLastError();
+ throw std::system_error(ec, WinErrorCategory::get(), LIBSERVICE_ERROR_PREFIX);
+ }
+ }
+
+ void uninstall_service(const ServiceHandle& handle)
+ {
+ if (!DeleteService(static_cast<SC_HANDLE>(handle)))
+ {
+ const auto ec = GetLastError();
+ throw std::system_error(ec, WinErrorCategory::get(), LIBSERVICE_ERROR_PREFIX);
+ }
+ }
+
+ SERVICE_STATUS_PROCESS query_service_status(const ServiceHandle& handle)
+ {
+ SERVICE_STATUS_PROCESS status;
+ DWORD nbreq;
+
+ if (!QueryServiceStatusEx(static_cast<SC_HANDLE>(handle),
+ SC_STATUS_PROCESS_INFO,
+ reinterpret_cast<BYTE*>(&status),
+ sizeof(status),
+ &nbreq))
+ {
+ const auto ec = GetLastError();
+ throw std::system_error(ec, WinErrorCategory::get(), LIBSERVICE_ERROR_PREFIX);
+ }
+
+ return status;
+ }
+
+ DWORD query_service_state(const ServiceHandle& handle)
+ {
+ return query_service_status(handle).dwCurrentState;
+ }
+
+ SERVICE_STATUS_PROCESS wait_for_service_state(
+ const ServiceHandle& handle,
+ const DWORD desired_state)
+ {
+ auto status = query_service_status(handle);
+
+ DWORD old_timestamp = GetTickCount();
+
+ DWORD old_check_point = status.dwCheckPoint;
+ DWORD old_wait_hint = status.dwWaitHint;
+
+ while (desired_state != status.dwCurrentState)
+ {
+ DWORD wait_time = old_wait_hint / 10;
+
+ if (wait_time < 1000)
+ wait_time = 1000;
+ else if (wait_time > 10000)
+ wait_time = 10000;
+
+ Sleep(wait_time);
+
+ status = query_service_status(handle);
+
+ if (desired_state == status.dwCurrentState)
+ break;
+
+ if (status.dwCheckPoint > old_check_point)
+ {
+ old_timestamp = GetTickCount();
+
+ old_check_point = status.dwCheckPoint;
+ old_wait_hint = status.dwWaitHint;
+ }
+ else if (GetTickCount() - old_timestamp > old_wait_hint)
+ {
+ return status;
+ }
+ }
+ return status;
+ }
+ }
+
+ Service Service::open(const ServiceManager& mgr, const std::string& name)
+ {
+ return Service(open_service(mgr, name));
+ }
+
+ Service Service::install(const ServiceManager& mgr,
+ const std::string& name,
+ const std::string& bin_path)
+ {
+ return Service(install_service(mgr, name, bin_path));
+ }
+
+ void Service::start() const
+ {
+ const auto state = query_service_state(m_handle);
+
+ switch (state)
+ {
+ case SERVICE_STOPPED:
+ break;
+
+ case SERVICE_STOP_PENDING:
+ wait_for_service_state(m_handle, SERVICE_STOPPED);
+ break;
+
+ default:
+ return;
+ }
+
+ start_service(m_handle);
+ wait_for_service_state(m_handle, SERVICE_RUNNING);
+ }
+
+ void Service::stop() const
+ {
+ switch (query_service_state(m_handle))
+ {
+ case SERVICE_STOPPED:
+ return;
+
+ case SERVICE_STOP_PENDING:
+ wait_for_service_state(m_handle, SERVICE_STOPPED);
+ return;
+ }
+
+ stop_service(m_handle);
+ wait_for_service_state(m_handle, SERVICE_STOPPED);
+ }
+
+ void Service::uninstall() const
+ {
+ stop();
+ uninstall_service(m_handle);
+ }
+
+ void swap(Service& a, Service& b) LIBSERVICE_NOEXCEPT
+ {
+ a.swap(b);
+ }
+}
+
+namespace std
+{
+ template <>
+ void swap<libservice::Service>(
+ libservice::Service& a,
+ libservice::Service& b) LIBSERVICE_NOEXCEPT
+ {
+ a.swap(b);
+ }
+}
diff --git a/utils/libservice/src/service_handle.cpp b/utils/libservice/src/service_handle.cpp
new file mode 100644
index 0000000..5356b50
--- /dev/null
+++ b/utils/libservice/src/service_handle.cpp
@@ -0,0 +1,30 @@
+/**
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ * See LICENSE.txt for details.
+ */
+
+#include "libservice/common.hpp"
+#include "libservice/service_handle.hpp"
+
+#include <utility>
+
+namespace libservice
+{
+ void swap(ServiceHandle& a, ServiceHandle& b) LIBSERVICE_NOEXCEPT
+ {
+ a.swap(b);
+ }
+}
+
+namespace std
+{
+ template <>
+ void swap<libservice::ServiceHandle>(
+ libservice::ServiceHandle& a,
+ libservice::ServiceHandle& b) LIBSERVICE_NOEXCEPT
+ {
+ a.swap(b);
+ }
+}
diff --git a/utils/libservice/src/service_manager.cpp b/utils/libservice/src/service_manager.cpp
new file mode 100644
index 0000000..4888406
--- /dev/null
+++ b/utils/libservice/src/service_manager.cpp
@@ -0,0 +1,48 @@
+/**
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ * See LICENSE.txt for details.
+ */
+
+#include "libservice/common.hpp"
+#include "libservice/service_handle.hpp"
+#include "libservice/service_manager.hpp"
+#include "libservice/windows_error.hpp"
+
+#include <Windows.h>
+
+#include <system_error>
+#include <utility>
+
+namespace libservice
+{
+ ServiceManager ServiceManager::open()
+ {
+ SC_HANDLE raw = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
+
+ if (NULL == raw)
+ {
+ const auto ec = GetLastError();
+ throw std::system_error(ec, WinErrorCategory::get());
+ }
+
+ return ServiceManager(ServiceHandle(raw));
+ }
+
+ void swap(ServiceManager& a, ServiceManager& b) LIBSERVICE_NOEXCEPT
+ {
+ a.swap(b);
+ }
+}
+
+namespace std
+{
+ template <>
+ void swap<libservice::ServiceManager>(
+ libservice::ServiceManager& a,
+ libservice::ServiceManager& b) LIBSERVICE_NOEXCEPT
+ {
+ a.swap(b);
+ }
+}
diff --git a/utils/libservice/src/windows_error.cpp b/utils/libservice/src/windows_error.cpp
new file mode 100644
index 0000000..6cc7302
--- /dev/null
+++ b/utils/libservice/src/windows_error.cpp
@@ -0,0 +1,41 @@
+/**
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ * See LICENSE.txt for details.
+ */
+
+#include "libservice/windows_error.hpp"
+
+#include <Windows.h>
+
+#include <string>
+
+namespace libservice
+{
+ std::string WinErrorCategory::message(int code) const
+ {
+ char* buf_ptr;
+
+ DWORD written = FormatMessageA(
+ FORMAT_MESSAGE_ALLOCATE_BUFFER
+ | FORMAT_MESSAGE_FROM_SYSTEM
+ | FORMAT_MESSAGE_IGNORE_INSERTS,
+ NULL,
+ code,
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+ reinterpret_cast<char*>(&buf_ptr),
+ 0,
+ NULL);
+
+ if (0 == written)
+ {
+ LocalFree(buf_ptr);
+ return "Couldn't format error message";
+ }
+
+ std::string str(buf_ptr, written - 2);
+ LocalFree(buf_ptr);
+ return str;
+ }
+}