From a790ffc2d1e89c0d9e1ee2bdf11aa3eaa7710747 Mon Sep 17 00:00:00 2001
From: DennisOSRM <luxen@kit.edu>
Date: Thu, 22 Nov 2012 17:23:31 +0100
Subject: [PATCH] Fetching number of threads from extractor.ini

---
 extractor.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/extractor.cpp b/extractor.cpp
index eb4e643ba..ba2815cfc 100644
--- a/extractor.cpp
+++ b/extractor.cpp
@@ -32,6 +32,7 @@ or see http://www.gnu.org/licenses/agpl.txt.
 #include "Util/BaseConfiguration.h"
 #include "Util/InputFileUtil.h"
 #include "Util/MachineInfo.h"
+#include "Util/StringUtil.h"
 
 typedef BaseConfiguration ExtractorConfiguration;
 
@@ -42,6 +43,16 @@ int main (int argc, char *argv[]) {
         ERR("usage: \n" << argv[0] << " <file.osm/.osm.bz2/.osm.pbf> [<profile.lua>]");
     }
 
+    unsigned numberOfThreads = omp_get_num_procs();
+    if(testDataFile("extractor.ini")) {
+        ExtractorConfiguration extractorConfig("extractor.ini");
+        unsigned rawNumber = stringToInt(extractorConfig.GetParameter("Threads"));
+        if( rawNumber != 0 && rawNumber <= numberOfThreads)
+            numberOfThreads = rawNumber;
+    }
+    omp_set_num_threads(numberOfThreads);
+
+
     INFO("extracting data from input file " << argv[1]);
     bool isPBF(false);
     std::string outputFileName(argv[1]);