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Diffstat (limited to 'src/Win32Main.cxx')
| -rw-r--r-- | src/Win32Main.cxx | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/src/Win32Main.cxx b/src/Win32Main.cxx new file mode 100644 index 00000000..0cd5e445 --- /dev/null +++ b/src/Win32Main.cxx @@ -0,0 +1,171 @@ +/* + * Copyright (C) 2003-2011 The Music Player Daemon Project + * http://www.musicpd.org + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "config.h" +#include "Main.hxx" + +#ifdef WIN32 + +#include "mpd_error.h" +#include "GlobalEvents.hxx" + +#include <cstdlib> +#include <atomic> + +#include <glib.h> + +#include <windows.h> + +static int service_argc; +static char **service_argv; +static char service_name[] = ""; +static std::atomic_bool running; +static SERVICE_STATUS_HANDLE service_handle; + +static void WINAPI +service_main(DWORD argc, CHAR *argv[]); + +static SERVICE_TABLE_ENTRY service_registry[] = { + {service_name, service_main}, + {NULL, NULL} +}; + +static void +service_notify_status(DWORD status_code) +{ + SERVICE_STATUS current_status; + + current_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS; + current_status.dwControlsAccepted = status_code == SERVICE_START_PENDING + ? 0 + : SERVICE_ACCEPT_SHUTDOWN | SERVICE_ACCEPT_STOP; + + current_status.dwCurrentState = status_code; + current_status.dwWin32ExitCode = NO_ERROR; + current_status.dwCheckPoint = 0; + current_status.dwWaitHint = 1000; + + SetServiceStatus(service_handle, ¤t_status); +} + +static DWORD WINAPI +service_dispatcher(G_GNUC_UNUSED DWORD control, G_GNUC_UNUSED DWORD event_type, + G_GNUC_UNUSED void *event_data, G_GNUC_UNUSED void *context) +{ + switch (control) { + case SERVICE_CONTROL_SHUTDOWN: + case SERVICE_CONTROL_STOP: + GlobalEvents::Emit(GlobalEvents::SHUTDOWN); + return NO_ERROR; + default: + return NO_ERROR; + } +} + +static void WINAPI +service_main(G_GNUC_UNUSED DWORD argc, G_GNUC_UNUSED CHAR *argv[]) +{ + DWORD error_code; + gchar* error_message; + + service_handle = + RegisterServiceCtrlHandlerEx(service_name, + service_dispatcher, NULL); + + if (service_handle == 0) { + error_code = GetLastError(); + error_message = g_win32_error_message(error_code); + MPD_ERROR("RegisterServiceCtrlHandlerEx() failed: %s", + error_message); + } + + service_notify_status(SERVICE_START_PENDING); + mpd_main(service_argc, service_argv); + service_notify_status(SERVICE_STOPPED); +} + +static BOOL WINAPI +console_handler(DWORD event) +{ + switch (event) { + case CTRL_C_EVENT: + case CTRL_CLOSE_EVENT: + if (running.load()) { + // Recent msdn docs that process is terminated + // if this function returns TRUE. + // We initiate correct shutdown sequence (if possible). + // Once main() returns CRT will terminate our process + // regardless our thread is still active. + // If this did not happen within 3 seconds + // let's shutdown anyway. + GlobalEvents::Emit(GlobalEvents::SHUTDOWN); + // Under debugger it's better to wait indefinitely + // to allow debugging of shutdown code. + Sleep(IsDebuggerPresent() ? INFINITE : 3000); + } + // If we're not running main loop there is no chance for + // clean shutdown. + std::exit(EXIT_FAILURE); + return TRUE; + default: + return FALSE; + } +} + +int win32_main(int argc, char *argv[]) +{ + DWORD error_code; + gchar* error_message; + + service_argc = argc; + service_argv = argv; + + if (StartServiceCtrlDispatcher(service_registry)) + return 0; /* run as service successefully */ + + error_code = GetLastError(); + if (error_code == ERROR_FAILED_SERVICE_CONTROLLER_CONNECT) { + /* running as console app */ + running.store(false); + SetConsoleTitle("Music Player Daemon"); + SetConsoleCtrlHandler(console_handler, TRUE); + return mpd_main(argc, argv); + } + + error_message = g_win32_error_message(error_code); + MPD_ERROR("StartServiceCtrlDispatcher() failed: %s", error_message); +} + +void win32_app_started() +{ + if (service_handle != 0) + service_notify_status(SERVICE_RUNNING); + else + running.store(true); +} + +void win32_app_stopping() +{ + if (service_handle != 0) + service_notify_status(SERVICE_STOP_PENDING); + else + running.store(false); +} + +#endif |