Export SnappyFile class to its own file.

[apitrace] / trace_file.hpp

diff --git a/trace_file.hpp b/trace_file.hpp
index 3afa7096553c97a2ee7281862e5eaa85db0590f8..f1a63f2affaf73262729767f58d788c59c8ae288 100644 (file)
--- a/trace_file.hpp
+++ b/trace_file.hpp
@@ -12,8 +12,13 @@ public:
         Read,
         Write
     };
+    enum FlushType {
+        FlushShallow,
+        FlushDeep
+    };
 public:
     static bool isZLibCompressed(const std::string &filename);
+    static bool isSnappyCompressed(const std::string &filename);
 public:
     File(const std::string &filename = std::string(),
          File::Mode mode = File::Read);
@@ -27,7 +32,7 @@ public:
     bool write(const void *buffer, int length);
     bool read(void *buffer, int length);
     void close();
-    void flush();
+    void flush(FlushType type = FlushShallow);
     int getc();
 
 protected:
@@ -36,7 +41,7 @@ protected:
     virtual bool rawRead(void *buffer, int length) = 0;
     virtual int rawGetc() = 0;
     virtual void rawClose() = 0;
-    virtual void rawFlush() = 0;
+    virtual void rawFlush(FlushType type) = 0;
 
 protected:
     std::string m_filename;
@@ -56,50 +61,11 @@ protected:
     virtual bool rawRead(void *buffer, int length);
     virtual int rawGetc();
     virtual void rawClose();
-    virtual void rawFlush();
+    virtual void rawFlush(FlushType type);
 private:
     void *m_gzFile;
 };
 
-namespace snappy {
-    class File;
-}
-
-#define SNAPPY_CHUNK_SIZE (1 * 1024 * 1024)
-class SnappyFile : public File {
-public:
-    SnappyFile(const std::string &filename = std::string(),
-               File::Mode mode = File::Read);
-    virtual ~SnappyFile();
-
-protected:
-    virtual bool rawOpen(const std::string &filename, File::Mode mode);
-    virtual bool rawWrite(const void *buffer, int length);
-    virtual bool rawRead(void *buffer, int length);
-    virtual int rawGetc();
-    virtual void rawClose();
-    virtual void rawFlush();
-
-private:
-    inline int freeCacheSize() const
-    {
-        if (m_cacheSize > 0)
-            return m_cacheSize - (m_cachePtr - m_cache);
-        else
-            return 0;
-    }
-    void flushCache();
-    void createCache(size_t size);
-private:
-    std::fstream m_stream;
-    char *m_cache;
-    char *m_cachePtr;
-    size_t m_cacheSize;
-
-    char *m_compressedCache;
-};
-
-
 }
 
 #endif