From 7b1d0135921b9f5e795798e9a020c59a58301e8c Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jos=C3=A9=20Fonseca?= <jose.r.fonseca@gmail.com>
Date: Sun, 11 Sep 2011 14:12:12 +0100
Subject: [PATCH] Implement ZlibFile::currentOffset.

It helps making the parsing code simpler, and should not have any
performance impact.
---
 trace_file.cpp | 9 ++++-----
 trace_file.hpp | 9 +++++----
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/trace_file.cpp b/trace_file.cpp
index 45473b3..81bc343 100644
--- a/trace_file.cpp
+++ b/trace_file.cpp
@@ -57,11 +57,6 @@ File::~File()
 }
 
 
-File::Offset File::currentOffset()
-{
-    return File::Offset();
-}
-
 void File::setCurrentOffset(const File::Offset &offset)
 {
 }
@@ -163,6 +158,10 @@ void ZLibFile::rawFlush()
     gzflush(m_gzFile, Z_SYNC_FLUSH);
 }
 
+File::Offset ZLibFile::currentOffset()
+{
+    return File::Offset(gztell(m_gzFile));
+}
 
 bool ZLibFile::supportsOffsets() const
 {
diff --git a/trace_file.hpp b/trace_file.hpp
index f6e77ae..7214d78 100644
--- a/trace_file.hpp
+++ b/trace_file.hpp
@@ -40,9 +40,9 @@ public:
         Write
     };
     struct Offset {
-        Offset()
-            : chunk(0),
-              offsetInChunk(0)
+        Offset(uint64_t _chunk = 0, uint32_t _offsetInChunk = 0)
+            : chunk(_chunk),
+              offsetInChunk(_offsetInChunk)
         {}
         uint64_t chunk;
         uint32_t offsetInChunk;
@@ -71,7 +71,7 @@ public:
     int percentRead();
 
     virtual bool supportsOffsets() const = 0;
-    virtual File::Offset currentOffset();
+    virtual File::Offset currentOffset() = 0;
     virtual void setCurrentOffset(const File::Offset &offset);
 protected:
     virtual bool rawOpen(const std::string &filename, File::Mode mode) = 0;
@@ -178,6 +178,7 @@ public:
 
 
     virtual bool supportsOffsets() const;
+    virtual File::Offset currentOffset();
 protected:
     virtual bool rawOpen(const std::string &filename, File::Mode mode);
     virtual bool rawWrite(const void *buffer, size_t length);
-- 
2.45.2