From e0f182e26d12875ad2e03f634f5d8eb46f75038b Mon Sep 17 00:00:00 2001
From: Iain Patterson <me@iain.cx>
Date: Mon, 13 Jan 2014 23:53:33 +0000
Subject: [PATCH] Fixed regression with offline rotation.

We weren't falling through to direct I/O when online rotation was
completely disabled, only when it was attempted but failed.
We weren't closing pipe handles after a failed attempt to enable online
rotation.
We were incorrectly complaining about I/O errors in the event log when the
application was exiting.
---
 io.cpp      | 39 ++++++++++++++++++++++++---------------
 service.cpp |  4 ++++
 2 files changed, 28 insertions(+), 15 deletions(-)

diff --git a/io.cpp b/io.cpp
index 5efffe0..2578800 100644
--- a/io.cpp
+++ b/io.cpp
@@ -276,18 +276,22 @@ int get_output_handles(nssm_service_t *service, HKEY key, STARTUPINFO *si) {
     HANDLE stdout_handle = append_to_file(service->stdout_path, service->stdout_sharing, 0, service->stdout_disposition, service->stdout_flags);
     if (! stdout_handle) return 4;
 
-    /* Try online rotation only if a size threshold is set. */
     if (service->rotate_files && service->rotate_stdout_online) {
       service->stdout_pipe = si->hStdOutput = 0;
       service->stdout_thread = create_logging_thread(service->name, service->stdout_path, service->stdout_sharing, service->stdout_disposition, service->stdout_flags, &service->stdout_pipe, &si->hStdOutput, &stdout_handle, service->rotate_bytes_low, service->rotate_bytes_high, &service->stdout_tid, &service->rotate_stdout_online);
-
       if (! service->stdout_thread) {
-        if (! DuplicateHandle(GetCurrentProcess(), stdout_handle, GetCurrentProcess(), &si->hStdOutput, 0, true, DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) {
-          log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DUPLICATEHANDLE_FAILED, NSSM_REG_STDOUT, error_string(GetLastError()), 0);
-          return 4;
-        }
-        service->rotate_stdout_online = NSSM_ROTATE_OFFLINE;
+        CloseHandle(service->stdout_pipe);
+        CloseHandle(si->hStdOutput);
+      }
+    }
+    else service->stdout_thread = 0;
+
+    if (! service->stdout_thread) {
+      if (! DuplicateHandle(GetCurrentProcess(), stdout_handle, GetCurrentProcess(), &si->hStdOutput, 0, true, DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) {
+        log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DUPLICATEHANDLE_FAILED, NSSM_REG_STDOUT, error_string(GetLastError()), 0);
+        return 4;
       }
+      service->rotate_stdout_online = NSSM_ROTATE_OFFLINE;
     }
 
     set_flags = true;
@@ -323,14 +327,19 @@ int get_output_handles(nssm_service_t *service, HKEY key, STARTUPINFO *si) {
       if (service->rotate_files && service->rotate_stderr_online) {
         service->stderr_pipe = si->hStdError = 0;
         service->stderr_thread = create_logging_thread(service->name, service->stderr_path, service->stderr_sharing, service->stderr_disposition, service->stderr_flags, &service->stderr_pipe, &si->hStdError, &stderr_handle, service->rotate_bytes_low, service->rotate_bytes_high, &service->stderr_tid, &service->rotate_stderr_online);
-
         if (! service->stderr_thread) {
-          if (! DuplicateHandle(GetCurrentProcess(), stderr_handle, GetCurrentProcess(), &si->hStdError, 0, true, DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) {
-            log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DUPLICATEHANDLE_FAILED, NSSM_REG_STDERR, error_string(GetLastError()), 0);
-            return 7;
-          }
-          service->rotate_stderr_online = NSSM_ROTATE_OFFLINE;
+          CloseHandle(service->stderr_pipe);
+          CloseHandle(si->hStdError);
+        }
+      }
+      else service->stderr_thread = 0;
+
+      if (! service->stderr_thread) {
+        if (! DuplicateHandle(GetCurrentProcess(), stderr_handle, GetCurrentProcess(), &si->hStdError, 0, true, DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) {
+          log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DUPLICATEHANDLE_FAILED, NSSM_REG_STDERR, error_string(GetLastError()), 0);
+          return 7;
         }
+        service->rotate_stderr_online = NSSM_ROTATE_OFFLINE;
       }
 
       set_flags = true;
@@ -390,8 +399,8 @@ static int try_read(logger_t *logger, void *address, unsigned long bufsize, unsi
   }
 
 complain_read:
-  /* Ignore the error if we've been requested to exit for rotation anyway. */
-  if (*logger->rotate_online == NSSM_ROTATE_ONLINE_ASAP) return ret;
+  /* Ignore the error if we've been requested to exit anyway. */
+  if (*logger->rotate_online != NSSM_ROTATE_ONLINE) return ret;
   if (! (*complained & COMPLAINED_READ)) log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_READFILE_FAILED, logger->service_name, logger->path, error_string(error), 0);
   *complained |= COMPLAINED_READ;
   return ret;
diff --git a/service.cpp b/service.cpp
index a86d744..53ee349 100644
--- a/service.cpp
+++ b/service.cpp
@@ -1612,6 +1612,8 @@ int stop_service(nssm_service_t *service, unsigned long exitcode, bool graceful,
     service->wait_handle = 0;
   }
 
+  service->rotate_stdout_online = service->rotate_stderr_online = NSSM_ROTATE_OFFLINE;
+
   if (default_action && ! exitcode && ! graceful) {
     log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_GRACEFUL_SUICIDE, service->name, service->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);
     graceful = true;
@@ -1659,6 +1661,8 @@ void CALLBACK end_service(void *arg, unsigned char why) {
 
   service->stopping = true;
 
+  service->rotate_stdout_online = service->rotate_stderr_online = NSSM_ROTATE_OFFLINE;
+
   /* Check exit code */
   unsigned long exitcode = 0;
   TCHAR code[16];
-- 
2.20.1