added -d option to enable debug log (written to $HOME/.psensor/log)

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

diff --git a/src/lib/log.c b/src/lib/log.c
index fd7cf7a..73079f3 100644 (file)
--- a/src/lib/log.c
+++ b/src/lib/log.c
@@ -21,12 +21,14 @@
 #include <libintl.h>
 #define _(str) gettext(str)
 
+#include <stdarg.h>
 #include <stdio.h>
+#include <sys/time.h>
 
 #include "log.h"
 
 static FILE *file;
-static int log_level =  LOG_DEBUG;
+int log_level =  LOG_INFO;
 
 void log_open(const char *path, int lvl)
 {
@@ -40,39 +42,56 @@ void log_open(const char *path, int lvl)
 
 void log_puts(int lvl, const char *msg)
 {
+       log_printf(lvl, msg);
+}
+
+void log_close()
+{
+       if (!file)
+               return ;
+
+       fclose(file);
+
+       file = NULL;
+}
+
+#define LOG_BUFFER 4096
+void log_printf(int lvl, const char *fmt, ...)
+{
+       struct timeval tv;
+       static char buffer[1 + LOG_BUFFER];
+       va_list ap;
+       char *lvl_str;
+
        if (!file || lvl > log_level)
                return ;
 
+       va_start(ap, fmt);
+       vsnprintf(buffer, LOG_BUFFER, fmt, ap);
+       buffer[LOG_BUFFER] = '\0';
+       va_end(ap);
+
+       if (gettimeofday(&tv, NULL) != 0)
+               timerclear(&tv);
+
        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);
-
+       fprintf(file, "[%ld] %s %s\n", tv.tv_sec, lvl_str, buffer);
        fflush(file);
 }
 
-void log_close()
-{
-       if (!file)
-               return ;
-
-       fclose(file);
-
-       file = NULL;
-}
-