#include "nssm.h"\r
\r
+bool is_admin;\r
SERVICE_STATUS service_status;\r
SERVICE_STATUS_HANDLE service_handle;\r
+HANDLE process_handle;\r
HANDLE wait_handle;\r
-HANDLE pid;\r
-static char service_name[MAX_PATH];\r
-char exe[MAX_PATH];\r
-char flags[MAX_PATH];\r
+unsigned long pid;\r
+static char service_name[SERVICE_NAME_LENGTH];\r
+char exe[EXE_LENGTH];\r
+char flags[CMD_LENGTH];\r
char dir[MAX_PATH];\r
-\r
-static enum { NSSM_EXIT_RESTART, NSSM_EXIT_IGNORE, NSSM_EXIT_REALLY } exit_actions;\r
-static const char *exit_action_strings[] = { "Restart", "Ignore", "Exit", 0 };\r
+bool stopping;\r
+bool allow_restart;\r
+unsigned long throttle_delay;\r
+unsigned long stop_method;\r
+unsigned long kill_console_delay;\r
+unsigned long kill_window_delay;\r
+unsigned long kill_threads_delay;\r
+CRITICAL_SECTION throttle_section;\r
+CONDITION_VARIABLE throttle_condition;\r
+HANDLE throttle_timer;\r
+LARGE_INTEGER throttle_duetime;\r
+bool use_critical_section;\r
+FILETIME creation_time;\r
+\r
+extern imports_t imports;\r
+\r
+static enum { NSSM_EXIT_RESTART, NSSM_EXIT_IGNORE, NSSM_EXIT_REALLY, NSSM_EXIT_UNCLEAN } exit_actions;\r
+static const char *exit_action_strings[] = { "Restart", "Ignore", "Exit", "Suicide", 0 };\r
+\r
+static unsigned long throttle;\r
+\r
+static inline int throttle_milliseconds() {\r
+ /* pow() operates on doubles. */\r
+ int ret = 1; for (unsigned long i = 1; i < throttle; i++) ret *= 2;\r
+ return ret * 1000;\r
+}\r
\r
/* Connect to the service manager */\r
SC_HANDLE open_service_manager() {\r
SC_HANDLE ret = OpenSCManager(0, SERVICES_ACTIVE_DATABASE, SC_MANAGER_ALL_ACCESS);\r
if (! ret) {\r
- eventprintf(EVENTLOG_ERROR_TYPE, NSSM_MESSAGE_DEFAULT, "Unable to connect to service manager!\nPerhaps you need to be an administrator...");\r
+ if (is_admin) log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENSCMANAGER_FAILED, 0);\r
return 0;\r
}\r
\r
\r
/* About to install the service */\r
int pre_install_service(int argc, char **argv) {\r
- /* Show the dialogue box if we didn't give the */\r
+ /* Show the dialogue box if we didn't give the service name and path */\r
if (argc < 2) return nssm_gui(IDD_INSTALL, argv[0]);\r
\r
/* Arguments are optional */\r
char *flags;\r
- if (argc == 2) flags = "";\r
- else flags = argv[2];\r
+ size_t flagslen = 0;\r
+ size_t s = 0;\r
+ int i;\r
+ for (i = 2; i < argc; i++) flagslen += strlen(argv[i]) + 1;\r
+ if (! flagslen) flagslen = 1;\r
+\r
+ flags = (char *) HeapAlloc(GetProcessHeap(), 0, flagslen);\r
+ if (! flags) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "flags", "pre_install_service()", 0);\r
+ return 2;\r
+ }\r
+ ZeroMemory(flags, flagslen);\r
+\r
+ /*\r
+ This probably isn't UTF8-safe and should use std::string or something\r
+ but it's been broken for the best part of a decade and due for a rewrite\r
+ anyway so it'll do as a quick-'n'-dirty fix. Note that we don't free\r
+ the flags buffer but as the program exits that isn't a big problem.\r
+ */\r
+ for (i = 2; i < argc; i++) {\r
+ size_t len = strlen(argv[i]);\r
+ memmove(flags + s, argv[i], len);\r
+ s += len;\r
+ if (i < argc - 1) flags[s++] = ' ';\r
+ }\r
\r
return install_service(argv[0], argv[1], flags);\r
}\r
/* Show dialogue box if we didn't pass service name and "confirm" */\r
if (argc < 2) return nssm_gui(IDD_REMOVE, argv[0]);\r
if (str_equiv(argv[1], "confirm")) return remove_service(argv[0]);\r
- fprintf(stderr, "To remove a service without confirmation: nssm remove <servicename> confirm\n");\r
+ print_message(stderr, NSSM_MESSAGE_PRE_REMOVE_SERVICE);\r
return 100;\r
}\r
\r
/* Open service manager */\r
SC_HANDLE services = open_service_manager();\r
if (! services) {\r
- fprintf(stderr, "Error opening service manager!\n");\r
+ print_message(stderr, NSSM_MESSAGE_OPEN_SERVICE_MANAGER_FAILED);\r
return 2;\r
}\r
- \r
+\r
/* Get path of this program */\r
char path[MAX_PATH];\r
GetModuleFileName(0, path, MAX_PATH);\r
\r
/* Construct command */\r
- char command[MAX_PATH];\r
- size_t runlen = strlen(NSSM_RUN);\r
+ char command[CMD_LENGTH];\r
size_t pathlen = strlen(path);\r
- if (pathlen + runlen + 2 >= MAX_PATH) {\r
- fprintf(stderr, "The full path to " NSSM " is too long!\n");\r
+ if (pathlen + 1 >= VALUE_LENGTH) {\r
+ print_message(stderr, NSSM_MESSAGE_PATH_TOO_LONG, NSSM);\r
return 3;\r
}\r
- if (snprintf(command, sizeof(command), "\"%s\" %s", path, NSSM_RUN) < 0) {\r
- fprintf(stderr, "Out of memory for ImagePath!\n");\r
+ if (_snprintf_s(command, sizeof(command), _TRUNCATE, "\"%s\"", path) < 0) {\r
+ print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY_FOR_IMAGEPATH);\r
return 4;\r
}\r
\r
/* Create the service */\r
SC_HANDLE service = CreateService(services, name, name, SC_MANAGER_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START, SERVICE_ERROR_NORMAL, command, 0, 0, 0, 0, 0);\r
if (! service) {\r
- fprintf(stderr, "Error creating service!\n");\r
+ print_message(stderr, NSSM_MESSAGE_CREATESERVICE_FAILED);\r
CloseServiceHandle(services);\r
return 5;\r
}\r
\r
/* Now we need to put the parameters into the registry */\r
if (create_parameters(name, exe, flags, dir)) {\r
- fprintf(stderr, "Error setting startup parameters for the service!\n");\r
+ print_message(stderr, NSSM_MESSAGE_CREATE_PARAMETERS_FAILED);\r
DeleteService(service);\r
CloseServiceHandle(services);\r
return 6;\r
}\r
\r
+ set_service_recovery(service, name);\r
+\r
/* Cleanup */\r
CloseServiceHandle(service);\r
CloseServiceHandle(services);\r
\r
- printf("Service \"%s\" installed successfully!\n", name);\r
+ print_message(stdout, NSSM_MESSAGE_SERVICE_INSTALLED, name);\r
return 0;\r
}\r
\r
/* Open service manager */\r
SC_HANDLE services = open_service_manager();\r
if (! services) {\r
- fprintf(stderr, "Error opening service manager!\n");\r
+ print_message(stderr, NSSM_MESSAGE_OPEN_SERVICE_MANAGER_FAILED);\r
return 2;\r
}\r
- \r
+\r
/* Try to open the service */\r
SC_HANDLE service = OpenService(services, name, SC_MANAGER_ALL_ACCESS);\r
if (! service) {\r
- fprintf(stderr, "Can't open service!");\r
+ print_message(stderr, NSSM_MESSAGE_OPENSERVICE_FAILED);\r
CloseServiceHandle(services);\r
return 3;\r
}\r
\r
/* Try to delete the service */\r
if (! DeleteService(service)) {\r
- fprintf(stderr, "Error deleting service!\n");\r
+ print_message(stderr, NSSM_MESSAGE_DELETESERVICE_FAILED);\r
CloseServiceHandle(service);\r
CloseServiceHandle(services);\r
return 4;\r
CloseServiceHandle(service);\r
CloseServiceHandle(services);\r
\r
- printf("Service \"%s\" removed successfully!\n", name);\r
+ print_message(stdout, NSSM_MESSAGE_SERVICE_REMOVED, name);\r
return 0;\r
}\r
\r
/* Service initialisation */\r
void WINAPI service_main(unsigned long argc, char **argv) {\r
- if (_snprintf(service_name, sizeof(service_name), "%s", argv[0]) < 0) {\r
- eventprintf(EVENTLOG_ERROR_TYPE, NSSM_MESSAGE_DEFAULT, "service_main(): Out of memory for service_name!");\r
+ if (_snprintf_s(service_name, sizeof(service_name), _TRUNCATE, "%s", argv[0]) < 0) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "service_name", "service_main()", 0);\r
return;\r
}\r
\r
+ /* We can use a condition variable in a critical section on Vista or later. */\r
+ if (imports.SleepConditionVariableCS && imports.WakeConditionVariable) use_critical_section = true;\r
+ else use_critical_section = false;\r
+\r
/* Initialise status */\r
ZeroMemory(&service_status, sizeof(service_status));\r
service_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS | SERVICE_INTERACTIVE_PROCESS;\r
- service_status.dwCurrentState = SERVICE_RUNNING;\r
- service_status.dwControlsAccepted = SERVICE_ACCEPT_SHUTDOWN | SERVICE_ACCEPT_STOP;\r
+ service_status.dwControlsAccepted = SERVICE_ACCEPT_SHUTDOWN | SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE;\r
service_status.dwWin32ExitCode = NO_ERROR;\r
service_status.dwServiceSpecificExitCode = 0;\r
service_status.dwCheckPoint = 0;\r
- service_status.dwWaitHint = 1000;\r
+ service_status.dwWaitHint = NSSM_WAITHINT_MARGIN;\r
\r
/* Signal we AREN'T running the server */\r
+ process_handle = 0;\r
pid = 0;\r
\r
- /* Get startup parameters */\r
- int ret = get_parameters(argv[0], exe, sizeof(exe), flags, sizeof(flags), dir, sizeof(dir));\r
- if (ret) {\r
- eventprintf(EVENTLOG_ERROR_TYPE, NSSM_MESSAGE_DEFAULT, "service_main(): Can't get startup parameters: error %d", ret);\r
- return;\r
- }\r
-\r
/* Register control handler */\r
service_handle = RegisterServiceCtrlHandlerEx(NSSM, service_control_handler, 0);\r
if (! service_handle) {\r
- eventprintf(EVENTLOG_ERROR_TYPE, NSSM_MESSAGE_DEFAULT, "service_main(): RegisterServiceCtrlHandlerEx() failed: %s", error_string(GetLastError()));\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_REGISTERSERVICECTRLHANDER_FAILED, error_string(GetLastError()), 0);\r
return;\r
}\r
\r
- /* Try to create the exit action parameters; we don't care if it fails */\r
- create_exit_action(argv[0], exit_action_strings[0]);\r
+ log_service_control(service_name, 0, true);\r
+\r
+ service_status.dwCurrentState = SERVICE_START_PENDING;\r
+ service_status.dwWaitHint = throttle_delay + NSSM_WAITHINT_MARGIN;\r
+ SetServiceStatus(service_handle, &service_status);\r
+\r
+ if (is_admin) {\r
+ /* Try to create the exit action parameters; we don't care if it fails */\r
+ create_exit_action(argv[0], exit_action_strings[0]);\r
+\r
+ set_service_recovery(0, service_name);\r
+ }\r
+\r
+ /* Used for signalling a resume if the service pauses when throttled. */\r
+ if (use_critical_section) InitializeCriticalSection(&throttle_section);\r
+ else {\r
+ throttle_timer = CreateWaitableTimer(0, 1, 0);\r
+ if (! throttle_timer) {\r
+ log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_CREATEWAITABLETIMER_FAILED, service_name, error_string(GetLastError()), 0);\r
+ }\r
+ }\r
\r
monitor_service();\r
}\r
\r
+/* Make sure service recovery actions are taken where necessary */\r
+void set_service_recovery(SC_HANDLE service, char *service_name) {\r
+ SC_HANDLE services = 0;\r
+\r
+ if (! service) {\r
+ services = open_service_manager();\r
+ if (! services) return;\r
+\r
+ service = OpenService(services, service_name, SC_MANAGER_ALL_ACCESS);\r
+ if (! service) return;\r
+ }\r
+\r
+ SERVICE_FAILURE_ACTIONS_FLAG flag;\r
+ ZeroMemory(&flag, sizeof(flag));\r
+ flag.fFailureActionsOnNonCrashFailures = true;\r
+\r
+ /* This functionality was added in Vista so the call may fail */\r
+ if (! ChangeServiceConfig2(service, SERVICE_CONFIG_FAILURE_ACTIONS_FLAG, &flag)) {\r
+ unsigned long error = GetLastError();\r
+ /* Pre-Vista we expect to fail with ERROR_INVALID_LEVEL */\r
+ if (error != ERROR_INVALID_LEVEL) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CHANGESERVICECONFIG2_FAILED, service_name, error_string(error), 0);\r
+ }\r
+ }\r
+\r
+ if (services) {\r
+ CloseServiceHandle(service);\r
+ CloseServiceHandle(services);\r
+ }\r
+}\r
+\r
int monitor_service() {\r
/* Set service status to started */\r
int ret = start_service();\r
if (ret) {\r
- eventprintf(EVENTLOG_ERROR_TYPE, NSSM_MESSAGE_DEFAULT, "Can't start service %s: error code %d", service_name, ret);\r
+ char code[16];\r
+ _snprintf_s(code, sizeof(code), _TRUNCATE, "%d", ret);\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_START_SERVICE_FAILED, exe, service_name, ret, 0);\r
return ret;\r
}\r
- eventprintf(EVENTLOG_INFORMATION_TYPE, NSSM_MESSAGE_DEFAULT, "Started process %s %s in %s for service %s", exe, flags, dir, service_name);\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_STARTED_SERVICE, exe, flags, service_name, dir, 0);\r
\r
- /* Monitor service service */\r
- if (! RegisterWaitForSingleObject(&wait_handle, pid, end_service, 0, INFINITE, WT_EXECUTEONLYONCE | WT_EXECUTELONGFUNCTION)) {\r
- eventprintf(EVENTLOG_WARNING_TYPE, NSSM_MESSAGE_DEFAULT, "RegisterWaitForSingleObject() returned %s - service may claim to be still running when %s exits ", error_string(GetLastError()), exe);\r
+ /* Monitor service */\r
+ if (! RegisterWaitForSingleObject(&wait_handle, process_handle, end_service, (void *) pid, INFINITE, WT_EXECUTEONLYONCE | WT_EXECUTELONGFUNCTION)) {\r
+ log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_REGISTERWAITFORSINGLEOBJECT_FAILED, service_name, exe, error_string(GetLastError()), 0);\r
}\r
\r
return 0;\r
}\r
\r
+char *service_control_text(unsigned long control) {\r
+ switch (control) {\r
+ /* HACK: there is no SERVICE_CONTROL_START constant */\r
+ case 0: return "START";\r
+ case SERVICE_CONTROL_STOP: return "STOP";\r
+ case SERVICE_CONTROL_SHUTDOWN: return "SHUTDOWN";\r
+ case SERVICE_CONTROL_PAUSE: return "PAUSE";\r
+ case SERVICE_CONTROL_CONTINUE: return "CONTINUE";\r
+ case SERVICE_CONTROL_INTERROGATE: return "INTERROGATE";\r
+ default: return 0;\r
+ }\r
+}\r
+\r
+void log_service_control(char *service_name, unsigned long control, bool handled) {\r
+ char *text = service_control_text(control);\r
+ unsigned long event;\r
+\r
+ if (! text) {\r
+ /* "0x" + 8 x hex + NULL */\r
+ text = (char *) HeapAlloc(GetProcessHeap(), 0, 11);\r
+ if (! text) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "control code", "log_service_control()", 0);\r
+ return;\r
+ }\r
+ if (_snprintf_s(text, 11, _TRUNCATE, "0x%08x", control) < 0) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "control code", "log_service_control()", 0);\r
+ HeapFree(GetProcessHeap(), 0, text);\r
+ return;\r
+ }\r
+\r
+ event = NSSM_EVENT_SERVICE_CONTROL_UNKNOWN;\r
+ }\r
+ else if (handled) event = NSSM_EVENT_SERVICE_CONTROL_HANDLED;\r
+ else event = NSSM_EVENT_SERVICE_CONTROL_NOT_HANDLED;\r
+\r
+ log_event(EVENTLOG_INFORMATION_TYPE, event, service_name, text, 0);\r
+\r
+ if (event == NSSM_EVENT_SERVICE_CONTROL_UNKNOWN) {\r
+ HeapFree(GetProcessHeap(), 0, text);\r
+ }\r
+}\r
+\r
/* Service control handler */\r
unsigned long WINAPI service_control_handler(unsigned long control, unsigned long event, void *data, void *context) {\r
switch (control) {\r
+ case SERVICE_CONTROL_INTERROGATE:\r
+ /* We always keep the service status up-to-date so this is a no-op. */\r
+ return NO_ERROR;\r
+\r
case SERVICE_CONTROL_SHUTDOWN:\r
case SERVICE_CONTROL_STOP:\r
- stop_service(0);\r
+ log_service_control(service_name, control, true);\r
+ stop_service(0, true, true);\r
return NO_ERROR;\r
+\r
+ case SERVICE_CONTROL_CONTINUE:\r
+ log_service_control(service_name, control, true);\r
+ throttle = 0;\r
+ if (use_critical_section) imports.WakeConditionVariable(&throttle_condition);\r
+ else {\r
+ if (! throttle_timer) return ERROR_CALL_NOT_IMPLEMENTED;\r
+ ZeroMemory(&throttle_duetime, sizeof(throttle_duetime));\r
+ SetWaitableTimer(throttle_timer, &throttle_duetime, 0, 0, 0, 0);\r
+ }\r
+ service_status.dwCurrentState = SERVICE_CONTINUE_PENDING;\r
+ service_status.dwWaitHint = throttle_milliseconds() + NSSM_WAITHINT_MARGIN;\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_RESET_THROTTLE, service_name, 0);\r
+ SetServiceStatus(service_handle, &service_status);\r
+ return NO_ERROR;\r
+\r
+ case SERVICE_CONTROL_PAUSE:\r
+ /*\r
+ We don't accept pause messages but it isn't possible to register\r
+ only for continue messages so we have to handle this case.\r
+ */\r
+ log_service_control(service_name, control, false);\r
+ return ERROR_CALL_NOT_IMPLEMENTED;\r
}\r
\r
/* Unknown control */\r
+ log_service_control(service_name, control, false);\r
return ERROR_CALL_NOT_IMPLEMENTED;\r
}\r
\r
/* Start the service */\r
int start_service() {\r
- if (pid) return 0;\r
+ stopping = false;\r
+ allow_restart = true;\r
+\r
+ if (process_handle) return 0;\r
\r
/* Allocate a STARTUPINFO structure for a new process */\r
STARTUPINFO si;\r
PROCESS_INFORMATION pi;\r
ZeroMemory(&pi, sizeof(pi));\r
\r
+ /* Get startup parameters */\r
+ char *env = 0;\r
+ int ret = get_parameters(service_name, exe, sizeof(exe), flags, sizeof(flags), dir, sizeof(dir), &env, &throttle_delay, &stop_method, &kill_console_delay, &kill_window_delay, &kill_threads_delay, &si);\r
+ if (ret) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_GET_PARAMETERS_FAILED, service_name, 0);\r
+ return stop_service(2, true, true);\r
+ }\r
+\r
/* Launch executable with arguments */\r
- char cmd[MAX_PATH];\r
- if (_snprintf(cmd, sizeof(cmd), "%s %s", exe, flags) < 0) {\r
- eventprintf(EVENTLOG_ERROR_TYPE, NSSM_MESSAGE_DEFAULT, "Error constructing command line");\r
- return stop_service(2);\r
+ char cmd[CMD_LENGTH];\r
+ if (_snprintf_s(cmd, sizeof(cmd), _TRUNCATE, "\"%s\" %s", exe, flags) < 0) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "command line", "start_service", 0);\r
+ close_output_handles(&si);\r
+ return stop_service(2, true, true);\r
}\r
- if (! CreateProcess(0, cmd, 0, 0, 0, 0, 0, dir, &si, &pi)) {\r
- eventprintf(EVENTLOG_ERROR_TYPE, NSSM_MESSAGE_DEFAULT, "Can't launch %s. CreateProcess() returned %s", exe, error_string(GetLastError()));\r
- return stop_service(3);\r
+\r
+ throttle_restart();\r
+\r
+ bool inherit_handles = false;\r
+ if (si.dwFlags & STARTF_USESTDHANDLES) inherit_handles = true;\r
+ if (! CreateProcess(0, cmd, 0, 0, inherit_handles, 0, env, dir, &si, &pi)) {\r
+ unsigned long error = GetLastError();\r
+ if (error == ERROR_INVALID_PARAMETER && env) log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEPROCESS_FAILED_INVALID_ENVIRONMENT, service_name, exe, NSSM_REG_ENV, 0);\r
+ else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEPROCESS_FAILED, service_name, exe, error_string(error), 0);\r
+ close_output_handles(&si);\r
+ return stop_service(3, true, true);\r
}\r
- pid = pi.hProcess;\r
+ process_handle = pi.hProcess;\r
+ pid = pi.dwProcessId;\r
+\r
+ if (get_process_creation_time(process_handle, &creation_time)) ZeroMemory(&creation_time, sizeof(creation_time));\r
+\r
+ close_output_handles(&si);\r
+\r
+ /* Wait for a clean startup. */\r
+ if (WaitForSingleObject(process_handle, throttle_delay) == WAIT_TIMEOUT) throttle = 0;\r
\r
/* Signal successful start */\r
service_status.dwCurrentState = SERVICE_RUNNING;\r
}\r
\r
/* Stop the service */\r
-int stop_service(unsigned long exitcode) {\r
+int stop_service(unsigned long exitcode, bool graceful, bool default_action) {\r
+ allow_restart = false;\r
+ if (wait_handle) UnregisterWait(wait_handle);\r
+\r
+ if (default_action && ! exitcode && ! graceful) {\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_GRACEFUL_SUICIDE, service_name, exe, exit_action_strings[NSSM_EXIT_UNCLEAN], exit_action_strings[NSSM_EXIT_UNCLEAN], exit_action_strings[NSSM_EXIT_UNCLEAN], exit_action_strings[NSSM_EXIT_REALLY] ,0);\r
+ graceful = true;\r
+ }\r
+\r
/* Signal we are stopping */\r
- service_status.dwCurrentState = SERVICE_STOP_PENDING;\r
- SetServiceStatus(service_handle, &service_status);\r
+ if (graceful) {\r
+ service_status.dwCurrentState = SERVICE_STOP_PENDING;\r
+ service_status.dwWaitHint = NSSM_WAITHINT_MARGIN;\r
+ if (stop_method & NSSM_STOP_METHOD_CONSOLE && imports.AttachConsole) service_status.dwWaitHint += kill_console_delay;\r
+ if (stop_method & NSSM_STOP_METHOD_WINDOW) service_status.dwWaitHint += kill_window_delay;\r
+ if (stop_method & NSSM_STOP_METHOD_THREADS) service_status.dwWaitHint += kill_threads_delay;\r
+ SetServiceStatus(service_handle, &service_status);\r
+ }\r
\r
- /* Nothing to do if server isn't running */\r
+ /* Nothing to do if service isn't running */\r
if (pid) {\r
- /* Shut down server */\r
- TerminateProcess(pid, 0);\r
- pid = 0;\r
+ /* Shut down service */\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_TERMINATEPROCESS, service_name, exe, 0);\r
+ kill_process(service_name, stop_method, process_handle, pid, 0);\r
}\r
+ else log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_PROCESS_ALREADY_STOPPED, service_name, exe, 0);\r
+\r
+ end_service((void *) pid, true);\r
\r
/* Signal we stopped */\r
- service_status.dwCurrentState = SERVICE_STOPPED;\r
- if (exitcode) {\r
- service_status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;\r
- service_status.dwServiceSpecificExitCode = exitcode;\r
- }\r
- else {\r
- service_status.dwWin32ExitCode = NO_ERROR;\r
- service_status.dwServiceSpecificExitCode = 0;\r
+ if (graceful) {\r
+ service_status.dwCurrentState = SERVICE_STOPPED;\r
+ if (exitcode) {\r
+ service_status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;\r
+ service_status.dwServiceSpecificExitCode = exitcode;\r
+ }\r
+ else {\r
+ service_status.dwWin32ExitCode = NO_ERROR;\r
+ service_status.dwServiceSpecificExitCode = 0;\r
+ }\r
+ SetServiceStatus(service_handle, &service_status);\r
}\r
- SetServiceStatus(service_handle, &service_status);\r
\r
return exitcode;\r
}\r
\r
/* Callback function triggered when the server exits */\r
void CALLBACK end_service(void *arg, unsigned char why) {\r
+ if (stopping) return;\r
+\r
+ stopping = true;\r
+\r
+ pid = (unsigned long) arg;\r
+\r
/* Check exit code */\r
- unsigned long ret = 0;\r
- GetExitCodeProcess(pid, &ret);\r
+ unsigned long exitcode = 0;\r
+ char code[16];\r
+ FILETIME exit_time;\r
+ GetExitCodeProcess(process_handle, &exitcode);\r
+ if (exitcode == STILL_ACTIVE || get_process_exit_time(process_handle, &exit_time)) GetSystemTimeAsFileTime(&exit_time);\r
+ CloseHandle(process_handle);\r
+\r
+ /*\r
+ Log that the service ended BEFORE logging about killing the process\r
+ tree. See below for the possible values of the why argument.\r
+ */\r
+ if (! why) {\r
+ _snprintf_s(code, sizeof(code), _TRUNCATE, "%lu", exitcode);\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_ENDED_SERVICE, exe, service_name, code, 0);\r
+ }\r
+\r
+ /* Clean up. */\r
+ if (exitcode == STILL_ACTIVE) exitcode = 0;\r
+ kill_process_tree(service_name, stop_method, pid, exitcode, pid, &creation_time, &exit_time);\r
\r
- eventprintf(EVENTLOG_INFORMATION_TYPE, NSSM_MESSAGE_DEFAULT, "Process %s for service %s exited with return code %u", exe, service_name, ret);\r
+ /*\r
+ The why argument is true if our wait timed out or false otherwise.\r
+ Our wait is infinite so why will never be true when called by the system.\r
+ If it is indeed true, assume we were called from stop_service() because\r
+ this is a controlled shutdown, and don't take any restart action.\r
+ */\r
+ if (why) return;\r
+ if (! allow_restart) return;\r
\r
/* What action should we take? */\r
int action = NSSM_EXIT_RESTART;\r
unsigned char action_string[ACTION_LEN];\r
- if (! get_exit_action(service_name, &ret, action_string)) {\r
+ bool default_action;\r
+ if (! get_exit_action(service_name, &exitcode, action_string, &default_action)) {\r
for (int i = 0; exit_action_strings[i]; i++) {\r
if (! _strnicmp((const char *) action_string, exit_action_strings[i], ACTION_LEN)) {\r
action = i;\r
}\r
}\r
\r
+ process_handle = 0;\r
pid = 0;\r
switch (action) {\r
/* Try to restart the service or return failure code to service manager */\r
case NSSM_EXIT_RESTART:\r
- eventprintf(EVENTLOG_INFORMATION_TYPE, NSSM_MESSAGE_DEFAULT, "Action for exit code %lu is %s: Attempting to restart %s for service %s", ret, exit_action_strings[action], exe, service_name);\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_EXIT_RESTART, service_name, code, exit_action_strings[action], exe, 0);\r
while (monitor_service()) {\r
- eventprintf(EVENTLOG_INFORMATION_TYPE, NSSM_MESSAGE_DEFAULT, "Failed to restart %s - sleeping ", exe, ret);\r
+ log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_RESTART_SERVICE_FAILED, exe, service_name, 0);\r
Sleep(30000);\r
}\r
break;\r
\r
/* Do nothing, just like srvany would */\r
case NSSM_EXIT_IGNORE:\r
- eventprintf(EVENTLOG_INFORMATION_TYPE, NSSM_MESSAGE_DEFAULT, "Action for exit code %lu is %s: Not attempting to restart %s for service %s", ret, exit_action_strings[action], exe, service_name);\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_EXIT_IGNORE, service_name, code, exit_action_strings[action], exe, 0);\r
Sleep(INFINITE);\r
break;\r
\r
/* Tell the service manager we are finished */\r
case NSSM_EXIT_REALLY:\r
- eventprintf(EVENTLOG_INFORMATION_TYPE, NSSM_MESSAGE_DEFAULT, "Action for exit code %lu is %s: Stopping service %s", ret, exit_action_strings[action], service_name);\r
- stop_service(ret);\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_EXIT_REALLY, service_name, code, exit_action_strings[action], 0);\r
+ stop_service(exitcode, true, default_action);\r
break;\r
+\r
+ /* Fake a crash so pre-Vista service managers will run recovery actions. */\r
+ case NSSM_EXIT_UNCLEAN:\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_EXIT_UNCLEAN, service_name, code, exit_action_strings[action], 0);\r
+ stop_service(exitcode, false, default_action);\r
+ free_imports();\r
+ exit(exitcode);\r
+ break;\r
+ }\r
+}\r
+\r
+void throttle_restart() {\r
+ /* This can't be a restart if the service is already running. */\r
+ if (! throttle++) return;\r
+\r
+ int ms = throttle_milliseconds();\r
+\r
+ if (throttle > 7) throttle = 8;\r
+\r
+ char threshold[8], milliseconds[8];\r
+ _snprintf_s(threshold, sizeof(threshold), _TRUNCATE, "%lu", throttle_delay);\r
+ _snprintf_s(milliseconds, sizeof(milliseconds), _TRUNCATE, "%lu", ms);\r
+ log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_THROTTLED, service_name, threshold, milliseconds, 0);\r
+\r
+ if (use_critical_section) EnterCriticalSection(&throttle_section);\r
+ else if (throttle_timer) {\r
+ ZeroMemory(&throttle_duetime, sizeof(throttle_duetime));\r
+ throttle_duetime.QuadPart = 0 - (ms * 10000LL);\r
+ SetWaitableTimer(throttle_timer, &throttle_duetime, 0, 0, 0, 0);\r
+ }\r
+\r
+ service_status.dwCurrentState = SERVICE_PAUSED;\r
+ SetServiceStatus(service_handle, &service_status);\r
+\r
+ if (use_critical_section) {\r
+ imports.SleepConditionVariableCS(&throttle_condition, &throttle_section, ms);\r
+ LeaveCriticalSection(&throttle_section);\r
+ }\r
+ else {\r
+ if (throttle_timer) WaitForSingleObject(throttle_timer, INFINITE);\r
+ else Sleep(ms);\r
+ }\r
+}\r
+\r
+/*\r
+ When responding to a stop (or any other) request we need to set dwWaitHint to\r
+ the number of milliseconds we expect the operation to take, and optionally\r
+ increase dwCheckPoint. If dwWaitHint milliseconds elapses without the\r
+ operation completing or dwCheckPoint increasing, the system will consider the\r
+ service to be hung.\r
+\r
+ However the system will consider the service to be hung after 30000\r
+ milliseconds regardless of the value of dwWaitHint if dwCheckPoint has not\r
+ changed. Therefore if we want to wait longer than that we must periodically\r
+ increase dwCheckPoint.\r
+\r
+ Furthermore, it will consider the service to be hung after 60000 milliseconds\r
+ regardless of the value of dwCheckPoint unless dwWaitHint is increased every\r
+ time dwCheckPoint is also increased.\r
+\r
+ Our strategy then is to retrieve the initial dwWaitHint and wait for\r
+ NSSM_SHUTDOWN_CHECKPOINT milliseconds. If the process is still running and\r
+ we haven't finished waiting we increment dwCheckPoint and add whichever is\r
+ smaller of NSSM_SHUTDOWN_CHECKPOINT or the remaining timeout to dwWaitHint.\r
+\r
+ Only doing both these things will prevent the system from killing the service.\r
+\r
+ Returns: 1 if the wait timed out.\r
+ 0 if the wait completed.\r
+ -1 on error.\r
+*/\r
+int await_shutdown(char *function_name, char *service_name, SERVICE_STATUS_HANDLE service_handle, SERVICE_STATUS *service_status, HANDLE process_handle, unsigned long timeout) {\r
+ unsigned long interval;\r
+ unsigned long waithint;\r
+ unsigned long ret;\r
+ unsigned long waited;\r
+ char interval_milliseconds[16];\r
+ char timeout_milliseconds[16];\r
+ char waited_milliseconds[16];\r
+ char *function = function_name;\r
+\r
+ /* Add brackets to function name. */\r
+ size_t funclen = strlen(function_name) + 3;\r
+ char *func = (char *) HeapAlloc(GetProcessHeap(), 0, funclen);\r
+ if (func) {\r
+ if (_snprintf_s(func, funclen, _TRUNCATE, "%s()", function_name) > -1) function = func;\r
}\r
+\r
+ _snprintf_s(timeout_milliseconds, sizeof(timeout_milliseconds), _TRUNCATE, "%lu", timeout);\r
+\r
+ waithint = service_status->dwWaitHint;\r
+ waited = 0;\r
+ while (waited < timeout) {\r
+ interval = timeout - waited;\r
+ if (interval > NSSM_SHUTDOWN_CHECKPOINT) interval = NSSM_SHUTDOWN_CHECKPOINT;\r
+\r
+ service_status->dwCurrentState = SERVICE_STOP_PENDING;\r
+ service_status->dwWaitHint += interval;\r
+ service_status->dwCheckPoint++;\r
+ SetServiceStatus(service_handle, service_status);\r
+\r
+ if (waited) {\r
+ _snprintf_s(waited_milliseconds, sizeof(waited_milliseconds), _TRUNCATE, "%lu", waited);\r
+ _snprintf_s(interval_milliseconds, sizeof(interval_milliseconds), _TRUNCATE, "%lu", interval);\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_AWAITING_SHUTDOWN, function, service_name, waited_milliseconds, interval_milliseconds, timeout_milliseconds, 0);\r
+ }\r
+\r
+ switch (WaitForSingleObject(process_handle, interval)) {\r
+ case WAIT_OBJECT_0:\r
+ ret = 0;\r
+ goto awaited;\r
+\r
+ case WAIT_TIMEOUT:\r
+ ret = 1;\r
+ break;\r
+\r
+ default:\r
+ ret = -1;\r
+ goto awaited;\r
+ }\r
+\r
+ waited += interval;\r
+ }\r
+\r
+awaited:\r
+ if (func) HeapFree(GetProcessHeap(), 0, func);\r
+\r
+ return ret;\r
}\r
git://git.iain.cx/iain / nssm.git / blobdiff