updated copyright end date to 2013

[psensor.git] / src / lib / log.c

diff --git a/src/lib/log.c b/src/lib/log.c
index fd7cf7a..9df4629 100644 (file)
--- a/src/lib/log.c
+++ b/src/lib/log.c
@@ -1,78 +1,157 @@
 /*
-    Copyright (C) 2010-2011 jeanfi@gmail.com
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 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 General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-    02110-1301 USA
-*/
+ * Copyright (C) 2010-2014 jeanfi@gmail.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#define _LARGEFILE_SOURCE 1
+#include "config.h"
 
 #include <locale.h>
 #include <libintl.h>
 #define _(str) gettext(str)
 
+#include <stdarg.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <time.h>
 
 #include "log.h"
+#include "ptime.h"
 
 static FILE *file;
-static int log_level =  LOG_DEBUG;
+int log_level =  LOG_WARN;
 
-void log_open(const char *path, int lvl)
+void log_open(const char *path)
 {
        file = fopen(path, "a");
 
-       if (file)
-               log_puts(LOG_INFO, "Start logging");
-       else
-               fprintf(stderr, _("Cannot open log file: %s\n"), path);
+       if (!file)
+               log_printf(LOG_ERR, _("Cannot open log file: %s"), path);
+}
+
+void log_close()
+{
+       if (!file)
+               return ;
+
+       fclose(file);
+
+       file = NULL;
 }
 
-void log_puts(int lvl, const char *msg)
+
+#define LOG_BUFFER 4096
+static void vlogf(int lvl, const char *fmt, va_list ap)
 {
-       if (!file || lvl > log_level)
+       char buffer[1 + LOG_BUFFER];
+       char *lvl_str, *t;
+       FILE *stdf;
+
+       if (lvl > LOG_INFO && (!file || lvl > log_level))
                return ;
 
+       vsnprintf(buffer, LOG_BUFFER, fmt, ap);
+       buffer[LOG_BUFFER] = '\0';
+
        switch (lvl) {
        case LOG_WARN:
-               fputs("[WARN] ", file);
+               lvl_str = "[WARN]";
                break;
        case LOG_ERR:
-               fputs("[ERR] ", file);
+               lvl_str = "[ERR]";
                break;
        case LOG_DEBUG:
-               fputs("[DEBUG] ", file);
+               lvl_str = "[DEBUG]";
                break;
        case LOG_INFO:
-               fputs("[INFO] ", file);
+               lvl_str = "[INFO]";
                break;
        default:
-               fputs("[??] ", file);
+               lvl_str = "[??]";
        }
 
-       fputs(msg, file);
-       fputc('\n', file);
+       t = get_time_str();
+       if (!t)
+               return ;
+
+       if (file && lvl <= log_level) {
+               fprintf(file, "[%s] %s %s\n", t, lvl_str, buffer);
+               fflush(file);
+       } else {
+               t = NULL;
+       }
+
+       if (lvl <= LOG_INFO) {
+               if (lvl == LOG_WARN || lvl == LOG_ERR)
+                       stdf = stderr;
+               else
+                       stdf = stdout;
+
 
-       fflush(file);
+               fprintf(stdf, "[%s] %s %s\n", t, lvl_str, buffer);
+       }
+
+       free(t);
 }
 
-void log_close()
+void log_printf(int lvl, const char *fmt, ...)
 {
-       if (!file)
+       va_list ap;
+
+       va_start(ap, fmt);
+       vlogf(lvl, fmt, ap);
+       va_end(ap);
+}
+
+void log_debug(const char *fmt, ...)
+{
+       va_list ap;
+
+       if (log_level < LOG_DEBUG)
                return ;
 
-       fclose(file);
+       va_start(ap, fmt);
+       vlogf(LOG_DEBUG, fmt, ap);
+       va_end(ap);
+}
 
-       file = NULL;
+void log_err(const char *fmt, ...)
+{
+       va_list ap;
+
+       va_start(ap, fmt);
+       vlogf(LOG_ERR, fmt, ap);
+       va_end(ap);
+}
+
+void log_warn(const char *fmt, ...)
+{
+       va_list ap;
+
+       va_start(ap, fmt);
+       vlogf(LOG_WARN, fmt, ap);
+       va_end(ap);
 }
 
+void log_info(const char *fmt, ...)
+{
+       va_list ap;
+
+       va_start(ap, fmt);
+       vlogf(LOG_INFO, fmt, ap);
+       va_end(ap);
+}