Use bool for return type of parse_args().

[loba.git] / options.cpp

diff --git a/options.cpp b/options.cpp
index e4d1236ecd51205c4dd87ed536d05e5392f27dc6..142056600f93c83bfe2ec94e1c16cefe496191f0 100644 (file)
--- a/options.cpp
+++ b/options.cpp
@@ -1,16 +1,24 @@
-#include "options.h"
-
 #include <iomanip>
 #include <iostream>
 #include <sstream>
 #include <unistd.h>             // getopt
 #include <xbt/log.h>
-#include "loba_simple.h"
 
 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(main);
 
+#include "loba_simple.h"
+#include "loba_fairstrategy.h"
+
+#include "options.h"
+
 namespace opt {
 
+    // Constants
+
+    // A sum of loads if considered null if it is less than
+    // load_ratio_threshold percent of the sum of loads at init.
+    const double load_ratio_threshold = 1e-4;
+
     // Global options
     std::string program_name;
     int help_requested = 0;
@@ -45,14 +53,15 @@ namespace opt {
     loba_algorithms_type loba_algorithms;
     loba_algorithms_type::loba_algorithms_type()
     {
-        NOL_INSERT("none", "no load-balancing (for testing)", process);
+        NOL_INSERT("fairstrategy", "balance with fair strategy", loba_fairstrategy);
+        NOL_INSERT("none", "no load-balancing (for testing only)", process);
         NOL_INSERT("simple", "balance with least loaded neighbor", loba_simple);
     }
 
     topologies_type topologies;
     topologies_type::topologies_type()
     {
-        NOL_INSERT("btree", "binary tree topologym intiial load at root", 
+        NOL_INSERT("btree", "binary tree topology, initial load at root",
                    deployment_btree);
         NOL_INSERT("clique", "all connected topology", deployment_clique);
         NOL_INSERT("hcube", "hypercube topology", deployment_hcube);
@@ -66,23 +75,23 @@ namespace opt {
 
 } // namespace opt
 
-int opt::parse_args(int* argc, char* argv[])
+bool opt::parse_args(int* argc, char* argv[])
 {
-    int result = 1;
+    bool result = true;
 
     opt::program_name = argv[0];
     opt::program_name.erase(0, 1 + opt::program_name.find_last_of('/'));
     
     int c;
     opterr = 0;
-    while ((c = getopt(*argc, argv, "a:bc:C:ehi:l:L:N:T:V")) != -1) {
+    while ((c = getopt(*argc, argv, "a:bc:C:ehi:l:L:N:T:vV")) != -1) {
         switch (c) {
         case 'a':
             opt::loba_algo = optarg;
             if (!opt::loba_algorithms.exists(opt::loba_algo)) {
                 ERROR1("unknownw load balancing algorithm -- %s",
                        opt::loba_algo.c_str());
-                result = 0;
+                result = false;
             }
             break;
         case 'b':
@@ -117,15 +126,19 @@ int opt::parse_args(int* argc, char* argv[])
             if (!opt::topologies.exists(opt::auto_depl::topology)) {
                 ERROR1("unknownw topology -- %s",
                        opt::auto_depl::topology.c_str());
-                result = 0;
+                result = false;
             }
             break;
+        case 'v':
+            // nothing to do: this option is checked at the very
+            // beginning of main()
+            break;
         case 'V':
             opt::version_requested = true;
             break;
         case '?':
             ERROR1("invalid option -- '%c'", optopt);
-            result = 0;
+            result = false;
             break;
         }
     }
@@ -137,7 +150,7 @@ int opt::parse_args(int* argc, char* argv[])
         opt::platform_file = argv[optind++];
     } else {
         ERROR0("missing parameter -- <plaform_file>");
-        result = 0;
+        result = false;
     }
     if (optind < *argc) {
         opt::deployment_file = argv[optind++];
@@ -146,7 +159,7 @@ int opt::parse_args(int* argc, char* argv[])
 
     while (optind < *argc) {
         ERROR1("unused parameter -- \"%s\"", argv[optind++]);
-        result = 0;
+        result = false;
     }
 
     return result;
@@ -235,6 +248,8 @@ void opt::usage()
     std::clog << o("-l value")
               << "print current load every n-th iterations, 0 to disable"
               << " (" << opt::log_rate << ")\n";
+    std::clog << o("-v")
+              << "verbose: do not override the default logging parameters\n";
 
     std::clog << "\nAutomatic deployment options\n";
     std::clog << o("-T name")