From 2a9f015d989f41520dfdaa424bf6f598fa6a7c3c Mon Sep 17 00:00:00 2001
From: Sathishkumar <x0203598@ti.com>
Date: Thu, 5 Sep 2013 12:12:28 +0530
Subject: [PATCH 1/1] [TRACE] Debug Log levels enabled

This patch adds debug log levels to libdce.
To enable traces, set the DCE_DEBUG_ENABLE.
The trace level can be changed by setting
DCE_DEBUG_LEVEL= [1/2/3] during compile time.

Change-Id: I4bed53cc6e3af938c02221376662318e3a1b8ec4
Signed-off-by: Sathishkumar <x0203598@ti.com>
---
 Makefile.am |  3 ++-
 dce_priv.h  | 38 +++++++++++++++++++++++---------------
 libdce.c    |  2 +-
 3 files changed, 26 insertions(+), 17 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 356c4cb..f10122f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -16,7 +16,8 @@ CE_CFLAGS                    = \
                                -I$(top_srcdir)/packages/xdais \
                                -I$(top_srcdir)/packages/xdctools \
                                -I$(IPC_HEADERS)/ \
-			       -DBUILDOS_LINUX=1 \
+			       -DBUILDOS_LINUX=1 -DDCE_DEBUG_LEVEL=1 \
+			       -DDCE_DEBUG_ENABLE=1 \
                                -Wno-pointer-to-int-cast
 
 
diff --git a/dce_priv.h b/dce_priv.h
index 7f2624f..70ee4c5 100644
--- a/dce_priv.h
+++ b/dce_priv.h
@@ -33,28 +33,36 @@
 #ifndef __DCE_PRIV_H__
 #define __DCE_PRIV_H__
 
-
-#ifdef BUILDOS_QNX
-#include <sys/slog.h>
-
+extern int dce_debug;
 
 /********************* MACROS ************************/
 /***************** TRACE MACROS  *********************/
 /* Need to make it OS specific and support different trace levels */
-#define ERROR(FMT, ...)  do { \
+
+/* set desired trace level:
+ *   1 - error
+ *   2 - error, debug
+ *   3 - error, debug, info  (very verbose)
+ */
+#ifdef DCE_DEBUG_ENABLE
+#define ERROR(FMT,...)   TRACE(1, "ERROR: " FMT, ##__VA_ARGS__)
+#define DEBUG(FMT,...)   TRACE(2, "DEBUG: " FMT, ##__VA_ARGS__)
+#define INFO(FMT,...)    TRACE(3, "INFO: " FMT, ##__VA_ARGS__)
+#else
+#define ERROR(FMT,...)
+#define DEBUG(FMT,...)
+#define INFO(FMT,...)
+#endif
+
+#ifdef BUILDOS_QNX
+#include <sys/slog.h>
+#define TRACE(lvl,FMT, ...)  do if ((lvl) <= dce_debug) { \
         slogf(42, _SLOG_INFO, "%s:%d:\t%s\terror: " FMT, __FILE__, __LINE__, __FUNCTION__, ##__VA_ARGS__); \
 } while( 0 )
-#define DEBUG(FMT, ...)  do { \
-        slogf(42, _SLOG_DEBUG2, "%s:%d:\t%s\tdebug: " FMT, __FILE__, __LINE__, __FUNCTION__, ##__VA_ARGS__); \
-} while( 0 )
-#endif
 
-#ifdef BUILDOS_LINUX
-#define ERROR(FMT, ...) do { \
-	printf("%s:%d:\t%s\t Error: "FMT,__FILE__, __LINE__,__FUNCTION__ ,##__VA_ARGS__); \
-}while( 0 )
-#define DEBUG(FMT, ...) do { \
-	printf("%s:%d:\t%s\t Debug: "FMT,__FILE__, __LINE__,__FUNCTION__ ,##__VA_ARGS__); \
+#elif defined BUILDOS_LINUX
+#define TRACE(lvl,FMT, ...)  do if ((lvl) <= dce_debug) { \
+        printf("%s:%d:\t%s\t Error: "FMT,__FILE__, __LINE__,__FUNCTION__ ,##__VA_ARGS__); \
 }while( 0 )
 #endif
 
diff --git a/libdce.c b/libdce.c
index 3bbed45..b781972 100644
--- a/libdce.c
+++ b/libdce.c
@@ -86,7 +86,7 @@
 MmRpc_Handle    MmRpcHandle = NULL;
 sem_t          *dce_semaphore = NULL;
 static int      count = 0;
-
+int             dce_debug = DCE_DEBUG_LEVEL;
 
 /****************** INLINE FUNCTIONS ********************/
 
-- 
2.39.2