Timer safety.

[nssm.git] / service.cpp

diff --git a/service.cpp b/service.cpp
index 4f7ff03..60a8db0 100644 (file)
--- a/service.cpp
+++ b/service.cpp
@@ -210,6 +210,9 @@ void WINAPI service_main(unsigned long argc, char **argv) {
 \r
   /* Used for signalling a resume if the service pauses when throttled. */\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
   monitor_service();\r
 }\r
@@ -259,6 +262,7 @@ unsigned long WINAPI service_control_handler(unsigned long control, unsigned lon
       return NO_ERROR;\r
 \r
     case SERVICE_CONTROL_CONTINUE:\r
+      if (! throttle_timer) return ERROR_CALL_NOT_IMPLEMENTED;\r
       throttle = 0;\r
       ZeroMemory(&throttle_duetime, sizeof(throttle_duetime));\r
       SetWaitableTimer(throttle_timer, &throttle_duetime, 0, 0, 0, 0);\r
@@ -455,12 +459,15 @@ void throttle_restart() {
   _snprintf(milliseconds, sizeof(milliseconds), "%d", ms);\r
   log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_THROTTLED, service_name, threshold, milliseconds, 0);\r
 \r
-  ZeroMemory(&throttle_duetime, sizeof(throttle_duetime));\r
-  throttle_duetime.QuadPart = 0 - (ms * 10000);\r
-  SetWaitableTimer(throttle_timer, &throttle_duetime, 0, 0, 0, 0);\r
+  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
-  WaitForSingleObject(throttle_timer, INFINITE);\r
+  if (throttle_timer) WaitForSingleObject(throttle_timer, INFINITE);\r
+  else Sleep(ms);\r
 }\r