libtest: improve output format; makes eyes hurt less

[awesomized/libmemcached] / libtest / stream.h

diff --git a/libtest/stream.h b/libtest/stream.h
index 1555d98dc776b653e3be7830155c6171ec0f561d..0124b9d256d0242f2c9fb6038771b2c19e18ad22 100644 (file)
--- a/libtest/stream.h
+++ b/libtest/stream.h
@@ -48,58 +48,97 @@ namespace stream {
 namespace detail {
 
 template<class Ch, class Tr, class A>
-  class cerr {
+  class channel {
   private:
 
   public:
     typedef std::basic_ostringstream<Ch, Tr, A> stream_buffer;
 
   public:
-    void operator()(const stream_buffer &s)
+    void operator()(const stream_buffer& s, std::ostream& _out,
+                    const char* filename, int line_number, const char* func)
     {
-      std::cerr << s.str() << std::endl;
-    }
-  };
-
-template<class Ch, class Tr, class A>
-  class make_cerr {
-  private:
-
-  public:
-    typedef std::basic_ostringstream<Ch, Tr, A> stream_buffer;
-
-  public:
-    void operator()(const stream_buffer &s)
-    {
-      std::cerr << std::endl << s.str() << std::endl;
+      if (filename)
+      {
+        _out
+          << filename 
+          << ":" 
+          << line_number 
+          << ": in " 
+          << func << "() "
+          << s.str()
+          << std::endl;
+      }
+      else
+      {
+        _out
+          << s.str()
+          << std::endl;
+      }
     }
   };
 
 template<class Ch, class Tr, class A>
-  class cout {
+  class channelln {
   private:
 
   public:
     typedef std::basic_ostringstream<Ch, Tr, A> stream_buffer;
 
   public:
-    void operator()(const stream_buffer &s)
+    void operator()(const stream_buffer& s, std::ostream& _out,
+                    const char* filename, int line_number, const char* func)
     {
-      std::cout << s.str() << std::endl;
+      if (filename)
+      {
+        _out
+          << std::endl
+          << filename 
+          << ":" 
+          << line_number 
+          << ": in " 
+          << func << "() "
+          << s.str()
+          << std::endl;
+      }
+      else
+      {
+        _out
+          << std::endl
+          << s.str()
+          << std::endl;
+      }
     }
   };
 
 template<class Ch, class Tr, class A>
-  class clog {
+  class channelfl {
   private:
 
   public:
     typedef std::basic_ostringstream<Ch, Tr, A> stream_buffer;
 
   public:
-    void operator()(const stream_buffer &s)
+    void operator()(const stream_buffer& s, std::ostream& _out,
+                    const char* filename, int line_number, const char* func)
     {
-      std::cerr<< s.str() << std::endl;
+      if (filename)
+      {
+        _out
+          << filename
+          << ":"
+          << line_number
+          << ": in "
+          << func << "() "
+          << s.str()
+          << std::flush;
+      }
+      else
+      {
+        _out
+          << s.str()
+          << std::flush;
+      }
     }
   };
 
@@ -107,79 +146,115 @@ template<template <class Ch, class Tr, class A> class OutputPolicy, class Ch = c
   class log {
   private:
     typedef OutputPolicy<Ch, Tr, A> output_policy;
+
+  private:
+    std::ostream& _out;
     const char *_filename;
     int _line_number;
     const char *_func;
 
   public:
-    log() :
-      _filename(NULL),
-      _line_number(0)
+    log(std::ostream& out_arg, const char* filename, int line_number, const char* func) :
+      _out(out_arg),
+      _filename(filename),
+      _line_number(line_number),
+      _func(func)
     { }
 
-    void set_filename(const char *filename, int line_number, const char *func)
-    {
-      _filename= filename;
-      _line_number= line_number;
-      _func= func;
-    }
-
-    ~log()
+    virtual ~log()
     {
-      output_policy()(arg);
+      output_policy()(arg, _out, _filename, _line_number, _func);
     }
 
   public:
     template<class T>
       log &operator<<(const T &x)
       {
-        if (_filename)
-        {
-          arg << _filename << ":" << _line_number << ": in " << _func << "() ";
-          _filename= NULL;
-        }
         arg << x;
         return *this;
       }
 
   private:
     typename output_policy::stream_buffer arg;
+
+  private:
+    log( const log& );
+    const log& operator=( const log& );
   };
-}
+} // namespace detail
 
-class make_cerr : public detail::log<detail::make_cerr> {
+class make_cerr : public detail::log<detail::channelln> {
 public:
-  make_cerr(const char *filename, int line_number, const char *func)
-  {
-    set_filename(filename, line_number, func);
-  }
+  make_cerr(const char* filename, int line_number, const char* func) :
+    detail::log<detail::channelln>(std::cerr, filename, line_number, func)
+  { }
+
+private:
+  make_cerr( const make_cerr& );
+  const make_cerr& operator=( const make_cerr& );
 };
 
-class cerr : public detail::log<detail::cerr> {
+class cerr : public detail::log<detail::channel> {
 public:
-  cerr(const char *filename, int line_number, const char *func)
-  {
-    set_filename(filename, line_number, func);
-  }
+  cerr(const char* filename, int line_number, const char* func) :
+    detail::log<detail::channel>(std::cout, filename, line_number, func)
+  { }
+
+private:
+  cerr( const cerr& );
+  const cerr& operator=( const cerr& );
 };
 
-class clog : public detail::log<detail::clog> {
+class clog : public detail::log<detail::channel> {
 public:
-  clog(const char *, int, const char*)
+  clog(const char* filename, int line_number, const char* func) :
+    detail::log<detail::channel>(std::clog, filename, line_number, func)
   { }
+
+private:
+  clog( const clog& );
+  const clog& operator=( const clog& );
 };
 
-class cout : public detail::log<detail::cout> {
+class make_cout : public detail::log<detail::channelln> {
 public:
-  cout(const char *, int, const char *)
+  make_cout(const char* filename, int line_number, const char* func) :
+    detail::log<detail::channelln>(std::cout, filename, line_number, func)
   { }
+
+private:
+  make_cout( const make_cout& );
+  const make_cout& operator=( const make_cout& );
 };
 
+class cout : public detail::log<detail::channel> {
+public:
+  cout(const char* filename, int line_number, const char* func) :
+    detail::log<detail::channel>(std::cout, filename, line_number, func)
+  { }
+
+private:
+  cout( const cout& );
+  const cout& operator=( const cout& );
+};
+
+class cecho : public detail::log<detail::channelfl> {
+public:
+  cecho(const char* filename, int line_number, const char* func) :
+    detail::log<detail::channelfl>(std::cout, filename, line_number, func)
+  { }
+
+private:
+  cecho( const cecho& );
+  const cecho& operator=( const cecho& );
+};
 
 } // namespace stream
 
 #define Error stream::cerr(__FILE__, __LINE__, __func__)
 
+#define Echo stream::cecho(NULL, __LINE__, __func__)
+
 #define Out stream::cout(NULL, __LINE__, __func__)
 
 #define Outn() stream::cout(NULL, __LINE__, __func__) << " "