Core: Fix the SFMT randgen-initbug

Signed-off-by: click <click@gonnamakeyou.com>

3 files changed, 13 insertions, 1 deletions

diff --git a/src/server/shared/Utilities/Util.cpp b/src/server/shared/Utilities/Util.cpp
index 52ce74be8f8..d3ae82e4ff3 100755
--- a/src/server/shared/Utilities/Util.cpp
+++ b/src/server/shared/Utilities/Util.cpp
@@ -31,6 +31,11 @@
 typedef ACE_TSS<SFMTRand> SFMTRandTSS;
 static SFMTRandTSS sfmtRand;
 
+void init_sfmt()
+{
+    sfmtRand->RandomInit((int)(time(0)));
+}
+
 int32 irand(int32 min, int32 max)
 {
     return int32(sfmtRand->IRandom(min, max));
diff --git a/src/server/shared/Utilities/Util.h b/src/server/shared/Utilities/Util.h
index 4c2c1936993..1a542ff15e1 100755
--- a/src/server/shared/Utilities/Util.h
+++ b/src/server/shared/Utilities/Util.h
@@ -24,6 +24,11 @@
 #include <string>
 #include <vector>
 
+#ifdef USE_SFMT_FOR_RNG
+    // Initialize SFMT before first use, if enabled.
+    void init_sfmt();
+#endif
+
 // Searcher for map of structs
 template<typename T, class S> struct Finder
 {
diff --git a/src/server/worldserver/Master.cpp b/src/server/worldserver/Master.cpp
index d84cfc1a4a4..892328dcc81 100755
--- a/src/server/worldserver/Master.cpp
+++ b/src/server/worldserver/Master.cpp
@@ -139,7 +139,9 @@ int Master::Run()
 #ifdef USE_SFMT_FOR_RNG
     sLog->outString("\n");
     sLog->outString("SFMT has been enabled as the random number generator, if worldserver");
-    sLog->outString("freezes or crashes randomly, first, try disabling SFMT in CMAKE configuration");
+    sLog->outString("freezes or crashes randomly, first, try disabling SFMT in CMAKE configuration.");
+    sLog->outString("Initializing SFMT before first use.");
+    init_sfmt();
     sLog->outString("\n");
 #endif //USE_SFMT_FOR_RNG