X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=trace_snappyfile.cpp;h=1794a829c6635c2a57a11b33e446958dc908fe54;hb=c07f0288b4a5107e4702b4a6c748866509b37612;hp=db20abb97e120df95dcad10438c58fb67666ad81;hpb=5f78882308c311b42c88e14e261289dd4208f4d7;p=apitrace

diff --git a/trace_snappyfile.cpp b/trace_snappyfile.cpp
index db20abb..1794a82 100644
--- a/trace_snappyfile.cpp
+++ b/trace_snappyfile.cpp
@@ -211,7 +211,7 @@ void SnappyFile::flushWriteCache()
     assert(m_cachePtr == m_cache);
 }
 
-void SnappyFile::flushReadCache()
+void SnappyFile::flushReadCache(size_t skipLength)
 {
     //assert(m_cachePtr == m_cache + m_cacheSize);
     m_currentOffset.chunk = m_stream.tellg();
@@ -223,8 +223,10 @@ void SnappyFile::flushReadCache()
         ::snappy::GetUncompressedLength(m_compressedCache, compressedLength,
                                         &m_cacheSize);
         createCache(m_cacheSize);
-        ::snappy::RawUncompress(m_compressedCache, compressedLength,
-                                m_cache);
+        if (skipLength < m_cacheSize) {
+            ::snappy::RawUncompress(m_compressedCache, compressedLength,
+                                    m_cache);
+        }
     } else {
         createCache(0);
     }
@@ -300,7 +302,7 @@ void SnappyFile::setCurrentOffset(const File::Offset &offset)
 
 }
 
-bool SnappyFile::rawSkip(unsigned length)
+bool SnappyFile::rawSkip(size_t length)
 {
     if (endOfData()) {
         return false;
@@ -315,7 +317,7 @@ bool SnappyFile::rawSkip(unsigned length)
             m_cachePtr += chunkSize;
             sizeToRead -= chunkSize;
             if (sizeToRead > 0) {
-                flushReadCache();
+                flushReadCache(sizeToRead);
             }
             if (!m_cacheSize) {
                 break;