[svn] Replace opt.no_flush with a function to disable/enable flushing.

Published in <sxssnb6imyz.fsf@florida.arsdigita.de>.

src/ChangeLog

@@ -1,3 +1,9 @@
+2001-11-22  Hrvoje Niksic  <hniksic@arsdigita.com>
+
+	* retr.c (show_progress): Use it.
+
+	* log.c (log_set_flush): New function.
+
 2001-11-22  Hrvoje Niksic  <hniksic@arsdigita.com>
 
 	* utils.c (path_simplify): Don't remove trailing slashes.

src/log.c

@@ -52,6 +52,10 @@ static FILE *logfp;
 /* Whether logging is saved at all.  */
 int save_log_p;
 
+/* Whether the log is flushed after each command. */
+int flush_log_p = 1;
+int needs_flushing;
+
 /* In the event of a hang-up, and if its output was on a TTY, Wget
    redirects its output to `wget-log'.
 
@@ -268,10 +272,13 @@ logputs (enum log_options o, const char *s)
   CANONICALIZE_LOGFP_OR_RETURN;
 
   fputs (s, logfp);
-  if (!opt.no_flush)
-    fflush (logfp);
   if (save_log_p)
     saved_append (s);
+
+  if (flush_log_p)
+    logflush ();
+  else
+    needs_flushing = 1;
 }
 
 /* Print a message to the log.  A copy of message will be saved to
@@ -348,16 +355,41 @@ logvprintf (enum log_options o, const char *fmt, va_list args)
       if (bigmsg)
 	xfree (bigmsg);
     }
-  if (!opt.no_flush)
-    fflush (logfp);
+  if (flush_log_p)
+    logflush ();
+  else
+    needs_flushing = 1;
 }
 
-/* Flush LOGFP.  */
+/* Flush LOGFP.  Useful while flushing is disabled.  */
 void
 logflush (void)
 {
   CANONICALIZE_LOGFP_OR_RETURN;
   fflush (logfp);
+  needs_flushing = 0;
+}
+
+/* Enable or disable log flushing. */
+void
+log_set_flush (int flush)
+{
+  if (flush == flush_log_p)
+    return;
+
+  if (flush == 0)
+    {
+      /* Disable flushing by setting flush_log_p to 0. */
+      flush_log_p = 0;
+    }
+  else
+    {
+      /* Reenable flushing.  If anything was printed in no-flush mode,
+	 flush the log now.  */
+      if (needs_flushing)
+	logflush ();
+      flush_log_p = 1;
+    }
 }
 
 /* Portability with pre-ANSI compilers makes these two functions look

src/options.h

@@ -49,7 +49,6 @@ struct options
 				   data. */
   char *dir_prefix;		/* The top of directory tree */
   char *lfilename;		/* Log filename */
-  int no_flush;			/* If non-zero, inhibit flushing log. */
   char *input_filename;		/* Input filename */
   int force_html;		/* Is the input file an HTML file? */
 

src/retr.c

@@ -50,7 +50,6 @@ extern int errno;
 /* See the comment in gethttp() why this is needed. */
 int global_download_count;
 
-void logflush PARAMS ((void));
 
 /* Flags for show_progress().  */
 enum spflags { SP_NONE, SP_INIT, SP_FINISH };
@@ -198,7 +197,8 @@ show_progress (long res, long expected, enum spflags flags)
     }
 
   /* Temporarily disable flushing.  */
-  opt.no_flush = 1;
+  log_set_flush (0);
+
   /* init set means initialization.  If res is set, it also means that
      the retrieval is *not* done from the beginning.  The part that
      was already retrieved is not shown again.  */
@@ -255,11 +255,10 @@ show_progress (long res, long expected, enum spflags flags)
 	  logprintf (LOG_VERBOSE, "\n%5ldK", nrow * line_bytes / 1024);
 	}
     }
+
   /* Reenable flushing.  */
-  opt.no_flush = 0;
-  if (any_output)
-    /* Force flush.  */
-    logflush ();
+  log_set_flush (1);
+
   return any_output;
 }
 

src/wget.h

@@ -98,6 +98,8 @@ void logprintf ();
 void debug_logprintf ();
 #endif /* not HAVE_STDARG_H */
 void logputs PARAMS ((enum log_options, const char *));
+void logflush PARAMS ((void));
+void log_set_flush PARAMS ((int));
 
 /* Defined in `utils.c', but used literally everywhere.  */
 #ifndef DEBUG_MALLOC