From 73ef35474f089f56d40307b595d5a330f0bdd0d5 Mon Sep 17 00:00:00 2001
From: dgotwisner <dave.gotwisner@rangenetworks.com>
Date: Mon, 31 Mar 2014 12:03:44 +0200
Subject: [PATCH] Eliminate getpid() calls when logging.

---
 Logger.cpp | 1 +
 Logger.h   | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/Logger.cpp b/Logger.cpp
index 8363102..05bbfeb 100644
--- a/Logger.cpp
+++ b/Logger.cpp
@@ -47,6 +47,7 @@ std::list<std::string>    alarmsList;
 void            addAlarm(const std::string&);
 //@}
 
+pid_t gPid = 0;
 
 
 // (pat) If Log messages are printed before the classes in this module are inited
diff --git a/Logger.h b/Logger.h
index c16b34a..a30ac96 100644
--- a/Logger.h
+++ b/Logger.h
@@ -44,6 +44,8 @@
 #include <string>
 #include <assert.h>
 #include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/unistd.h>
 
 // We cannot include Utils.h because it includes Logger.h, so just declare timestr() here.
 // If timestr decl is changed G++ will whine when Utils.h is included.
@@ -53,8 +55,10 @@ namespace Utils { const std::string timestr(); };
 # define gettid() syscall(SYS_gettid)
 #endif // !defined(gettid)
 
+extern pid_t gPid;
+
 #define _LOG(level) \
-	Log(LOG_##level).get() << "pid(" << getpid() << "), tid(" << gettid() << ") " \
+	Log(LOG_##level).get() << "pid(" << gPid << "), tid(" << gettid() << ") " \
 	<< Utils::timestr() << " " __FILE__  ":"  << __LINE__ << ":" << __FUNCTION__ << ": "
 
 // (pat) If you '#define LOG_GROUP groupname' before including Logger.h, then you can set Log.Level.groupname as well as Log.Level.filename.