daemon: Factor out code into new function daemonize_post_detach().

[openvswitch] / lib / daemon.h

diff --git a/lib/daemon.h b/lib/daemon.h
index 1d630768e18579120f91161d26c26234bd2f41bc..8cbcfafe2442472eb1e16ea65269a2980ea498af 100644 (file)
--- a/lib/daemon.h
+++ b/lib/daemon.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,20 +21,19 @@
 #include <stdbool.h>
 #include <sys/types.h>
 
-enum {
-    OPT_DETACH = UCHAR_MAX + 2048,
-    OPT_NO_CHDIR,
-    OPT_OVERWRITE_PIDFILE,
-    OPT_PIDFILE,
+#define DAEMON_OPTION_ENUMS                     \
+    OPT_DETACH,                                 \
+    OPT_NO_CHDIR,                               \
+    OPT_OVERWRITE_PIDFILE,                      \
+    OPT_PIDFILE,                                \
     OPT_MONITOR
-};
 
-#define DAEMON_LONG_OPTIONS                                          \
-        {"detach",            no_argument, 0, OPT_DETACH},           \
-        {"no-chdir",          no_argument, 0, OPT_NO_CHDIR},         \
-        {"pidfile",           optional_argument, 0, OPT_PIDFILE},    \
-        {"overwrite-pidfile", no_argument, 0, OPT_OVERWRITE_PIDFILE},\
-        {"monitor",           no_argument, 0, OPT_MONITOR}
+#define DAEMON_LONG_OPTIONS                                             \
+        {"detach",            no_argument, NULL, OPT_DETACH},           \
+        {"no-chdir",          no_argument, NULL, OPT_NO_CHDIR},         \
+        {"pidfile",           optional_argument, NULL, OPT_PIDFILE},    \
+        {"overwrite-pidfile", no_argument, NULL, OPT_OVERWRITE_PIDFILE}, \
+        {"monitor",           no_argument, NULL, OPT_MONITOR}
 
 #define DAEMON_OPTION_HANDLERS                  \
         case OPT_DETACH:                        \
@@ -65,12 +64,16 @@ bool is_chdir_enabled(void);
 void set_detach(void);
 bool get_detach(void);
 void daemon_set_monitor(void);
+void daemon_save_fd(int fd);
 void daemonize(void);
 void daemonize_start(void);
 void daemonize_complete(void);
-void die_if_already_running(void);
 void ignore_existing_pidfile(void);
 void daemon_usage(void);
 pid_t read_pidfile(const char *name);
+pid_t read_pidfile_if_exists(const char *name);
+
+pid_t fork_and_clean_up(void);
+void daemonize_post_detach(void);
 
 #endif /* daemon.h */