xmlRMutex          29 third_party/libxml/src/include/libxml/threads.h typedef struct _xmlRMutex xmlRMutex;
xmlRMutex          30 third_party/libxml/src/include/libxml/threads.h typedef xmlRMutex *xmlRMutexPtr;
xmlRMutex         301 third_party/libxml/src/threads.c     if ((tok = malloc(sizeof(xmlRMutex))) == NULL)