Add a file identifier to snappy compressed traces

[apitrace] / trace_file.hpp

diff --git a/trace_file.hpp b/trace_file.hpp
index 5a460f79b0c13e1027970d89c6b281757878f389..ddc36c0c8b49a616a0ff5307f40746395b1f7d63 100644 (file)
--- a/trace_file.hpp
+++ b/trace_file.hpp
@@ -12,6 +12,9 @@ public:
         Read,
         Write
     };
+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);
@@ -26,13 +29,13 @@ public:
     bool read(void *buffer, int length);
     void close();
     void flush();
-    char getc();
+    int getc();
 
 protected:
     virtual bool rawOpen(const std::string &filename, File::Mode mode) = 0;
     virtual bool rawWrite(const void *buffer, int length) = 0;
     virtual bool rawRead(void *buffer, int length) = 0;
-    virtual char rawGetc() = 0;
+    virtual int rawGetc() = 0;
     virtual void rawClose() = 0;
     virtual void rawFlush() = 0;
 
@@ -52,7 +55,7 @@ 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 char rawGetc();
+    virtual int rawGetc();
     virtual void rawClose();
     virtual void rawFlush();
 private:
@@ -74,7 +77,7 @@ 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 char rawGetc();
+    virtual int rawGetc();
     virtual void rawClose();
     virtual void rawFlush();