Imported Upstream version 1.5.1

[routino] / src / logging.c

diff --git a/src/logging.c b/src/logging.c
new file mode 100644 (file)
index 0000000..bb43c07
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+++ b/src/logging.c
@@ -0,0 +1,253 @@
+/***************************************
+ $Header: /home/amb/routino/src/RCS/logging.c,v 1.1 2010/11/13 14:22:40 amb Exp $
+
+ Functions to handle logging functions.
+
+ Part of the Routino routing software.
+ ******************/ /******************
+ This file Copyright 2008-2010 Andrew M. Bishop
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ ***************************************/
+
+
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "logging.h"
+
+
+/*+ The option to print the output in a way that allows logging to a file. +*/
+int option_loggable=0;
+
+
+/* Local functions */
+
+static void vfprintf_first(FILE *file,const char *format,va_list ap);
+static void vfprintf_middle(FILE *file,const char *format,va_list ap);
+static void vfprintf_last(FILE *file,const char *format,va_list ap);
+
+/* Local variables */
+
+static int printed_length=0;
+
+
+/*++++++++++++++++++++++++++++++++++++++
+  Print the first message in an overwriting sequence.
+
+  const char *format The format string.
+
+  ... The other arguments.
+  ++++++++++++++++++++++++++++++++++++++*/
+
+void printf_first(const char *format, ...)
+{
+ va_list ap;
+
+ if(option_loggable)
+    return;
+
+ va_start(ap,format);
+
+ vfprintf_first(stdout,format,ap);
+
+ va_end(ap);
+}
+
+
+/*++++++++++++++++++++++++++++++++++++++
+  Print the middle message in an overwriting sequence.
+
+  const char *format The format string.
+
+  ... The other arguments.
+  ++++++++++++++++++++++++++++++++++++++*/
+
+void printf_middle(const char *format, ...)
+{
+ va_list ap;
+
+ if(option_loggable)
+    return;
+
+ va_start(ap,format);
+
+ vfprintf_middle(stdout,format,ap);
+
+ va_end(ap);
+}
+
+
+/*++++++++++++++++++++++++++++++++++++++
+  Print the last message in an overwriting sequence.
+
+  const char *format The format string.
+
+  ... The other arguments.
+  ++++++++++++++++++++++++++++++++++++++*/
+
+void printf_last(const char *format, ...)
+{
+ va_list ap;
+
+ va_start(ap,format);
+
+ vfprintf_last(stdout,format,ap);
+
+ va_end(ap);
+}
+
+
+/*++++++++++++++++++++++++++++++++++++++
+  Print the first message in an overwriting sequence.
+
+  FILE *file The file to write to.
+
+  const char *format The format string.
+
+  ... The other arguments.
+  ++++++++++++++++++++++++++++++++++++++*/
+
+void fprintf_first(FILE *file,const char *format, ...)
+{
+ va_list ap;
+
+ if(option_loggable)
+    return;
+
+ va_start(ap,format);
+
+ vfprintf_first(file,format,ap);
+
+ va_end(ap);
+}
+
+
+/*++++++++++++++++++++++++++++++++++++++
+  Print the middle message in an overwriting sequence.
+
+  FILE *file The file to write to.
+
+  const char *format The format string.
+
+  ... The other arguments.
+  ++++++++++++++++++++++++++++++++++++++*/
+
+void fprintf_middle(FILE *file,const char *format, ...)
+{
+ va_list ap;
+
+ if(option_loggable)
+    return;
+
+ va_start(ap,format);
+
+ vfprintf_middle(file,format,ap);
+
+ va_end(ap);
+}
+
+
+/*++++++++++++++++++++++++++++++++++++++
+  Print the last message in an overwriting sequence.
+
+  FILE *file The file to write to.
+
+  const char *format The format string.
+
+  ... The other arguments.
+  ++++++++++++++++++++++++++++++++++++++*/
+
+void fprintf_last(FILE *file,const char *format, ...)
+{
+ va_list ap;
+
+ va_start(ap,format);
+
+ vfprintf_last(file,format,ap);
+
+ va_end(ap);
+}
+
+
+/*++++++++++++++++++++++++++++++++++++++
+  Print the first message in an overwriting sequence.
+
+  FILE *file The file to write to.
+
+  const char *format The format string.
+
+  va_list ap The other arguments.
+  ++++++++++++++++++++++++++++++++++++++*/
+
+static void vfprintf_first(FILE *file,const char *format,va_list ap)
+{
+ int retval;
+
+ retval=vfprintf(file,format,ap);
+ fflush(file);
+
+ if(retval>0)
+    printed_length=retval;
+}
+
+
+/*++++++++++++++++++++++++++++++++++++++
+  Print the middle message in an overwriting sequence.
+
+  FILE *file The file to write to.
+
+  const char *format The format string.
+
+  va_list ap The other arguments.
+  ++++++++++++++++++++++++++++++++++++++*/
+
+static void vfprintf_middle(FILE *file,const char *format,va_list ap)
+{
+ int retval;
+
+ putchar('\r');
+ retval=vfprintf(file,format,ap);
+ fflush(file);
+
+ if(retval>0)
+    printed_length=retval;
+}
+
+
+/*++++++++++++++++++++++++++++++++++++++
+  Print the last message in an overwriting sequence.
+
+  FILE *file The file to write to.
+
+  const char *format The format string.
+
+  va_list ap The other arguments.
+  ++++++++++++++++++++++++++++++++++++++*/
+
+static void vfprintf_last(FILE *file,const char *format,va_list ap)
+{
+ int retval;
+
+ if(!option_loggable)
+    putchar('\r');
+ retval=vfprintf(file,format,ap);
+
+ if(retval>0)
+    while(retval++<printed_length)
+       putchar(' ');
+
+ putchar('\n');
+ fflush(file);
+}