Merge pull request #33 from sy-c/master

added central reference for error codes

CMakeLists.txt

@@ -382,7 +382,7 @@ foreach (f ${TEST_SRCS})
   message ("${exe}")
   add_executable(${exe} ${f} ${INFOLOGGER_LIB_OBJECTS} $<TARGET_OBJECTS:objCommonTimer>)
   target_link_libraries(${exe} InfoLogger)
-  target_include_directories(${exe} PRIVATE ${COMMON_STANDALONE_INCLUDE_DIRS})
+  target_include_directories(${exe} PRIVATE ${COMMON_STANDALONE_INCLUDE_DIRS} src)
   add_test(NAME ${test_name} COMMAND ${exe})
 endforeach()
 

doc/releaseNotes.md

@@ -23,3 +23,6 @@ This file describes the main feature changes for each InfoLogger released versio
 ## v1.3.5 - 06/09/2019
 - added process stdout/stderr capture and redirection to infologger
 - added infoLoggerTester to check full message pipeline from client to server and database.
+
+## next version
+- added header file InfoLoggerErrorCodes.h to reference centrally the definition of error code ranges reserved specifically for each o2 module, and possibly the individual description / documentation of each error code.

src/InfoLoggerErrorCodes.h

@@ -0,0 +1,64 @@
+// Copyright CERN and copyright holders of ALICE O2. This software is
+// distributed under the terms of the GNU General Public License v3 (GPL
+// Version 3), copied verbatim in the file "COPYING".
+//
+// See http://alice-o2.web.cern.ch/license for full licensing information.
+//
+// In applying this license CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+
+
+// This file is used to define the error codes used in InfoLogger
+// Some ranges are reserved for each external module making use of error codes.
+// Error codes are referenced and documented centrally here.
+
+
+namespace AliceO2
+{
+namespace InfoLogger
+{
+
+
+// Structure to describe the ranges of error codes
+typedef struct {
+  const int errorCodeMin; // minimum error code
+  const int errorCodeMax; // maximum error code max
+  const char *component; // component associated to this error code range
+  const char *url; // link to corresponding troubleshooting documentation
+} ErrorCodeRange;
+
+// Static array defining reserved error code ranges to be used by the o2 modules.
+// Error code definitions within each range is left to the corresponding package.
+// Terminated by a null entry
+static constexpr ErrorCodeRange errorCodeRanges[]={
+  { 0, 999, "reserved for general purpose", "" },
+  { 1000, 1999, "infoLogger", "" },
+  { 2000, 2999, "aliECS", "" },
+  { 0, 0, nullptr, nullptr}  
+};
+
+// Constant giving the number of error code ranges defined in errorCodeRanges[]
+static int numberOfErrorCodeRanges = sizeof(errorCodeRanges)/sizeof(ErrorCodeRange)-1;
+
+// Structure to describe each error code
+typedef struct {
+  const int errorCode; // minimum error code
+  const char *description; // short description of the error / hint
+  const char *url; // link to corresponding troubleshooting documentation
+} ErrorCode;
+
+// Static array defining available error codes
+// Terminated by a null entry
+static constexpr ErrorCode errorCodes[]={
+  { 0, nullptr, nullptr}
+};
+
+// Constant giving the number of error codes defined in errorCodes[]
+static int numberOfErrorCodes = sizeof(errorCodes)/sizeof(ErrorCode)-1;
+
+
+// end namespace InfoLogger
+}
+// end namespace AliceO2
+}

test/testInfoLogger.cxx

@@ -15,6 +15,7 @@
 
 #include <InfoLogger/InfoLogger.hxx>
 #include <boost/format.hpp>
+#include <InfoLoggerErrorCodes.h>
 
 using namespace AliceO2::InfoLogger;