1 files changed, 45 insertions, 3 deletions
diff --git a/chromium/third_party/libxml/src/include/private/threads.h b/chromium/third_party/libxml/src/include/private/threads.h
index c054a6fb956..b337bfa0b6d 100644
--- a/chromium/third_party/libxml/src/include/private/threads.h
+++ b/chromium/third_party/libxml/src/include/private/threads.h
@@ -1,8 +1,50 @@
 #ifndef XML_THREADS_H_PRIVATE__
 #define XML_THREADS_H_PRIVATE__
 
-void __xmlGlobalInitMutexLock(void);
-void __xmlGlobalInitMutexUnlock(void);
-void __xmlGlobalInitMutexDestroy(void);
+#include <libxml/threads.h>
+
+#ifdef LIBXML_THREAD_ENABLED
+  #ifdef HAVE_PTHREAD_H
+    #include <pthread.h>
+    #define HAVE_POSIX_THREADS
+  #elif defined(_WIN32)
+    #define WIN32_LEAN_AND_MEAN
+    #include <windows.h>
+    #ifndef HAVE_COMPILER_TLS
+      #include <process.h>
+    #endif
+    #define HAVE_WIN32_THREADS
+  #endif
+#endif
+
+/*
+ * xmlMutex are a simple mutual exception locks
+ */
+struct _xmlMutex {
+#ifdef HAVE_POSIX_THREADS
+    pthread_mutex_t lock;
+#elif defined HAVE_WIN32_THREADS
+    CRITICAL_SECTION cs;
+#else
+    int empty;
+#endif
+};
+
+XML_HIDDEN void
+__xmlGlobalInitMutexLock(void);
+XML_HIDDEN void
+__xmlGlobalInitMutexUnlock(void);
+XML_HIDDEN void
+__xmlGlobalInitMutexDestroy(void);
+
+XML_HIDDEN void
+xmlInitThreadsInternal(void);
+XML_HIDDEN void
+xmlCleanupThreadsInternal(void);
+
+XML_HIDDEN void
+xmlInitMutex(xmlMutexPtr mutex);
+XML_HIDDEN void
+xmlCleanupMutex(xmlMutexPtr mutex);
 
 #endif /* XML_THREADS_H_PRIVATE__ */