Fix problems that occurred when multiple threads were trying to read/convert files at the same time (ie: indexing and previewing threads in the GUI calling internfile()). Either get rid of or lock-protect all shared data, eliminate misc initialization possible conflicts by using static initializers. Hopefuly closes issue #51

src/index/fsindexer.cpp

@@ -63,7 +63,13 @@ using namespace std;
 #define deleteZ(X) {delete X;X = 0;}
 #endif
 
+FsIndexer::FsIndexer(RclConfig *cnf, Rcl::Db *db, DbIxStatusUpdater *updfunc) 
+    : m_config(cnf), m_db(db), m_updater(updfunc), m_missing(new FIMissingStore)
+{
+    m_havelocalfields = m_config->hasNameAnywhere("localfields");
+}
 FsIndexer::~FsIndexer() {
+    delete m_missing;
 }
 
 bool FsIndexer::init()
@@ -121,7 +127,7 @@ bool FsIndexer::index()
     }
 
     string missing;
-    FileInterner::getMissingDescription(missing);
+    FileInterner::getMissingDescription(m_missing, missing);
     if (!missing.empty()) {
 	LOGINFO(("FsIndexer::index missing helper program(s):\n%s\n", 
 		 missing.c_str()));
@@ -359,6 +365,7 @@ FsIndexer::processone(const std::string &fn, const struct stat *stp,
         // indexallfilenames is not set
         return FsTreeWalker::FtwOk;
     }
+    interner.setMissingStore(m_missing);
 
     // File name transcoded to utf8 for indexing. 
     string charset = m_config->getDefCharset(true);

src/index/fsindexer.h

@@ -26,6 +26,7 @@ using std::list;
 #include "rcldb.h"
 
 class DbIxStatusUpdater;
+class FIMissingStore;
 
 /** Index selected parts of the file system
  
@@ -45,12 +46,7 @@ class FsIndexer : public FsTreeWalkerCB {
      * @param cnf Configuration data
      * @param updfunc Status updater callback
      */
-    FsIndexer(RclConfig *cnf, Rcl::Db *db, DbIxStatusUpdater *updfunc = 0) 
-	: m_config(cnf), m_db(db), m_updater(updfunc)
-    {
-        m_havelocalfields = m_config->hasNameAnywhere("localfields");
-    }
-	
+    FsIndexer(RclConfig *cnf, Rcl::Db *db, DbIxStatusUpdater *updfunc = 0);
     virtual ~FsIndexer();
 
     /** 
@@ -79,6 +75,7 @@ class FsIndexer : public FsTreeWalkerCB {
     string       m_reason;
     DbIxStatusUpdater *m_updater;
     list<string> m_tdl;
+    FIMissingStore *m_missing;
 
     // The configuration can set attribute fields to be inherited by
     // all files in a file system area. Ie: set "rclaptg = thunderbird"