Implement scanning/skipping of fragments of the trace

[apitrace] / trace_snappyfile.hpp

diff --git a/trace_snappyfile.hpp b/trace_snappyfile.hpp
index c8c415bf57b47dacf0ee47e4138fdd6f25063ab0..ecf39dedbe649a470f531aaba1bf56918812e797 100644 (file)
--- a/trace_snappyfile.hpp
+++ b/trace_snappyfile.hpp
@@ -52,6 +52,9 @@ public:
                File::Mode mode = File::Read);
     virtual ~SnappyFile();
 
+    virtual bool supportsOffsets() const;
+    virtual File::Offset currentOffset();
+    virtual void setCurrentOffset(const File::Offset &offset);
 protected:
     virtual bool rawOpen(const std::string &filename, File::Mode mode);
     virtual bool rawWrite(const void *buffer, int length);
@@ -59,6 +62,7 @@ protected:
     virtual int rawGetc();
     virtual void rawClose();
     virtual void rawFlush();
+    virtual bool rawSkip(unsigned length);
 
 private:
     inline int freeCacheSize() const
@@ -83,6 +87,8 @@ private:
     size_t m_cacheSize;
 
     char *m_compressedCache;
+
+    File::Offset m_currentOffset;
 };
 
 }