Refactored shared pipe/file behavior into ILocalIODevice

[bamtools.git] / src / api / internal / BamReader_p.cpp

diff --git a/src/api/internal/BamReader_p.cpp b/src/api/internal/BamReader_p.cpp
index 87fe310499847103e4e6a213a5a7134b5378e4ed..e4e2310bb451b0490f6086cb5f88ced80060f7aa 100644 (file)
--- a/src/api/internal/BamReader_p.cpp
+++ b/src/api/internal/BamReader_p.cpp
@@ -344,17 +344,23 @@ bool BamReaderPrivate::OpenIndex(const std::string& indexFilename) {
 // returns BAM file pointer to beginning of alignment data
 bool BamReaderPrivate::Rewind(void) {
 
-    if ( !m_stream.IsOpen() )
+    if ( !m_stream.IsOpen() ) {
+        cerr << "BRP::Rewind() - stream not open" << endl;
         return false;
+    }
 
     // attempt rewind to first alignment
-    if ( !m_stream.Seek(m_alignmentsBeginOffset) )
+    if ( !m_stream.Seek(m_alignmentsBeginOffset) ) {
+        cerr << "BRP::Rewind() - could not seek to ABO (1st time)" << endl;
         return false;
+    }
 
     // verify that we can read first alignment
     BamAlignment al;
-    if ( !LoadNextAlignment(al) )
+    if ( !LoadNextAlignment(al) ) {
+        cerr << "BRP::Rewind() - could not read first alignment" << endl;
         return false;
+    }
 
     // reset region
     m_randomAccessController.ClearRegion();