X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsgml.cpp;h=2facb3ed539e280d459fed50a9f9fba1ba7f3b48;hb=b96ce9a9c101a711ef8a1cdd5d6fe812a18966da;hp=4842b07912e8f2f4524782a12093a5b3865174b8;hpb=2be29006adc748e343ad17126e0e62ef75b16afc;p=lyx.git

diff --git a/src/sgml.cpp b/src/sgml.cpp
index 4842b07912..2facb3ed53 100644
--- a/src/sgml.cpp
+++ b/src/sgml.cpp
@@ -27,7 +27,9 @@
 #include "support/lstrings.h"
 #include "support/textutils.h"
 
+#include <atomic>
 #include <map>
+#include <QThreadStorage>
 
 using namespace std;
 using namespace lyx::support;
@@ -102,9 +104,10 @@ docstring sgml::escapeString(docstring const & raw)
 }
 
 
-docstring const sgml::uniqueID(docstring const label)
+docstring const sgml::uniqueID(docstring const & label)
 {
-	static unsigned int seed = 1000;
+	// thread-safe
+	static atomic_uint seed(1000);
 	return label + convert<docstring>(++seed);
 }
 
@@ -133,8 +136,10 @@ docstring sgml::cleanID(Buffer const & buf, OutputParams const & runparams,
 	docstring content;
 
 	typedef map<docstring, docstring> MangledMap;
-	static MangledMap mangledNames;
-	static int mangleID = 1;
+	static QThreadStorage<MangledMap> tMangledNames;
+	static QThreadStorage<int> tMangleID;
+
+	MangledMap & mangledNames = tMangledNames.localData();
 
 	MangledMap::const_iterator const known = mangledNames.find(orig);
 	if (known != mangledNames.end())
@@ -163,9 +168,10 @@ docstring sgml::cleanID(Buffer const & buf, OutputParams const & runparams,
 		}
 	}
 
-	if (mangle)
+	if (mangle) {
+		int & mangleID = tMangleID.localData();
 		content += "-" + convert<docstring>(mangleID++);
-	else if (isDigitASCII(content[content.size() - 1]))
+	} else if (isDigitASCII(content[content.size() - 1]))
 		content += ".";
 
 	mangledNames[orig] = content;