* Turned the msg() and debug() functions into macros, since they

  turned out to be a huge performance bottleneck (the text to printed
  would always be evaluated, even when it was above the verbosity
  level).  This reduces fix-ng execution time by over 50%.

  gprof(1) is very useful. :-)

1 files changed, 14 insertions, 16 deletions

diff --git a/src/libnix/util.cc b/src/libnix/util.cc
index 016ee991a45c..299a37f6c877 100644
--- a/src/libnix/util.cc
+++ b/src/libnix/util.cc
@@ -110,7 +110,7 @@ bool pathExists(const Path & path)
 
 void deletePath(const Path & path)
 {
-    msg(lvlVomit, format("deleting path `%1%'") % path);
+    printMsg(lvlVomit, format("deleting path `%1%'") % path);
 
     struct stat st;
     if (lstat(path.c_str(), &st))
@@ -194,15 +194,9 @@ Verbosity verbosity = lvlError;
 static int nestingLevel = 0;
 
 
-Nest::Nest(Verbosity level, const format & f)
+Nest::Nest()
 {
-    if (level > verbosity)
-        nest = false;
-    else {
-        msg(level, f);
-        nest = true;
-        nestingLevel++;
-    }
+    nest = false;
 }
 
 
@@ -212,7 +206,17 @@ Nest::~Nest()
 }
 
 
-void msg(Verbosity level, const format & f)
+void Nest::open(Verbosity level, const format & f)
+{
+    if (level <= verbosity) {
+        printMsg_(level, f);
+        nest = true;
+        nestingLevel++;
+    }
+}
+
+
+void printMsg_(Verbosity level, const format & f)
 {
     if (level > verbosity) return;
     string spaces;
@@ -222,12 +226,6 @@ void msg(Verbosity level, const format & f)
 }
 
 
-void debug(const format & f)
-{
-    msg(lvlDebug, f);
-}
-
-
 void readFull(int fd, unsigned char * buf, size_t count)
 {
     while (count) {