[2216] added -d option to dump debug logs

not directly related, but would be useful for extending the benchmark
code and to check the server behavioer.

src/bin/auth/benchmarks/query_bench.cc

@@ -14,13 +14,6 @@
 
 #include <config.h>
 
-#include <stdlib.h>
-
-#include <iostream>
-#include <vector>
-
-#include <boost/shared_ptr.hpp>
-
 #include <bench/benchmark.h>
 #include <bench/benchmark_util.h>
 
@@ -42,6 +35,13 @@
 #include <asiodns/asiodns.h>
 #include <asiolink/asiolink.h>
 
+#include <boost/shared_ptr.hpp>
+
+#include <stdlib.h>
+
+#include <iostream>
+#include <vector>
+
 using namespace std;
 using namespace isc;
 using namespace isc::data;
@@ -187,8 +187,9 @@ enum DataSrcType {
 void
 usage() {
     cerr <<
-        "Usage: query_bench [-n iterations] [-t datasrc_type] [-o origin] "
-        "datasrc_file query_datafile\n"
+        "Usage: query_bench [-d] [-n iterations] [-t datasrc_type] [-o origin]"
+        " datasrc_file query_datafile\n"
+        "  -d Enable debug logging to stdout\n"
         "  -n Number of iterations per test case (default: "
          << ITERATION_DEFAULT << ")\n"
         "  -t Type of data source: sqlite3|memory (default: sqlite3)\n"
@@ -208,7 +209,8 @@ main(int argc, char* argv[]) {
     int iteration = ITERATION_DEFAULT;
     const char* opt_datasrc_type = "sqlite3";
     const char* origin = NULL;
-    while ((ch = getopt(argc, argv, "n:t:o:")) != -1) {
+    bool debug_log = false;
+    while ((ch = getopt(argc, argv, "dn:t:o:")) != -1) {
         switch (ch) {
         case 'n':
             iteration = atoi(optarg);
@@ -219,6 +221,9 @@ main(int argc, char* argv[]) {
         case 'o':
             origin = optarg;
             break;
+        case 'd':
+            debug_log = true;
+            break;
         case '?':
         default:
             usage();
@@ -232,9 +237,9 @@ main(int argc, char* argv[]) {
     const char* const datasrc_file = argv[0];
     const char* const query_data_file = argv[1];
 
-    // We disable logging to avoid unwanted noise. (We may eventually want to
-    // make it more configurable)
-    initLogger("query-bench", isc::log::NONE);
+    // By default disable logging to avoid unwanted noise.
+    initLogger("query-bench", debug_log ? isc::log::DEBUG : isc::log::NONE,
+               isc::log::MAX_DEBUG_LEVEL, NULL);
 
     DataSrcType datasrc_type = SQLITE3;
     if (strcmp(opt_datasrc_type, "sqlite3") == 0) {