int debug_level = -1;
static FILE* log_output;
+static log_callback_t *log_callbacks = NULL;
-static void *privData;
-static logCallback callback;
+static time_t start;
-void log_setCallback(logCallback c, void *p)
+static char *log_strings[5] =
{
- callback = c;
- privData = p;
-}
-
-static char *log_strings[5] =
-{
- "User: ",
+ "User: ",
"Error: ",
"Warning:",
"Info: ",
"Debug: "
};
-void log_printf(enum log_levels level, const char *file, int line, const char *function, const char *format, ...)
+static int count = 0;
+
+static void log_printfv(enum log_levels level, const char *file, int line, const char *function, const char *format, va_list args)
{
- static int count = 0;
- count++;
- va_list args;
char buffer[512];
+ log_callback_t *cb;
- if (level > debug_level)
- return;
-
- va_start(args, format);
vsnprintf(buffer, 512, format, args);
+ if (level == LOG_OUTPUT)
+ {
+ /* do not prepend any headers, just print out what we were given and return */
+ fputs(buffer, log_output);
+ fflush(log_output);
+ return;
+ }
+
char *f = strrchr(file, '/');
if (f != NULL)
file = f + 1;
- fprintf(log_output, "%s %d %ld %s:%d %s(): %s\n", log_strings[level+1], count, time(NULL), file, line, function, buffer);
+ if (debug_level >= LOG_DEBUG)
+ {
+ /* print with count and time information */
+ int t=(int)(time(NULL)-start);
+ fprintf(log_output, "%s %d %d %s:%d %s(): %s", log_strings[level+1], count, t, file, line, function, buffer);
+ }
+ else
+ {
+ /* do not print count and time */
+ fprintf(log_output, "%s %s:%d %s(): %s", log_strings[level+1], file, line, function, buffer);
+ }
+
fflush(log_output);
- va_end(args);
-
/* Never forward LOG_DEBUG, too verbose and they can be found in the log if need be */
- if (callback && (level <= LOG_INFO))
+ if (level <= LOG_INFO)
{
- va_start(args, format);
- callback(privData, file, line, function, format, args);
- va_end(args);
+ for (cb = log_callbacks; cb; cb = cb->next)
+ {
+ cb->fn(cb->priv, file, line, function, format, args);
+ }
}
}
+void log_printf(enum log_levels level, const char *file, int line, const char *function, const char *format, ...)
+{
+ count++;
+ if (level > debug_level)
+ return;
+
+ va_list args;
+ va_start(args, format);
+ log_printfv(level, file, line, function, format, args);
+ va_end(args);
+
+}
+
+void log_printfnl(enum log_levels level, const char *file, int line, const char *function, const char *format, ...)
+{
+ count++;
+ if (level > debug_level)
+ return;
+
+ char *t=malloc(strlen(format)+2);
+ strcpy(t, format);
+ strcat(t, "\n");
+
+ va_list args;
+ va_start(args, format);
+ log_printfv(level, file, line, function, t, args);
+ va_end(args);
+}
+
/* change the current debug level on the fly
* 0: only ERRORS
* 1: + WARNINGS
int log_register_commands(struct command_context_s *cmd_ctx)
{
+ start = time(NULL);
register_command(cmd_ctx, NULL, "log_output", handle_log_output_command,
COMMAND_ANY, "redirect logging to <file> (default: stderr)");
register_command(cmd_ctx, NULL, "debug_level", handle_debug_level_command,
return ERROR_OK;
}
+/* add/remove log callback handler */
+int log_add_callback(log_callback_fn fn, void *priv)
+{
+ log_callback_t *cb;
+
+ /* prevent the same callback to be registered more than once, just for sure */
+ for (cb = log_callbacks; cb; cb = cb->next)
+ {
+ if (cb->fn == fn && cb->priv == priv)
+ return ERROR_INVALID_ARGUMENTS;
+ }
+
+ /* alloc memory, it is safe just to return in case of an error, no need for the caller to check this */
+ if ((cb = malloc(sizeof(log_callback_t))) == NULL)
+ return ERROR_BUF_TOO_SMALL;
+
+ /* add item to the beginning of the linked list */
+ cb->fn = fn;
+ cb->priv = priv;
+ cb->next = log_callbacks;
+ log_callbacks = cb;
+
+ return ERROR_OK;
+}
+
+int log_remove_callback(log_callback_fn fn, void *priv)
+{
+ log_callback_t *cb, **p;
+
+ for (p = &log_callbacks; (cb = *p); p = &(*p)->next)
+ {
+ if (cb->fn == fn && cb->priv == priv)
+ {
+ *p = cb->next;
+ free(cb);
+ return ERROR_OK;
+ }
+ }
+
+ /* no such item */
+ return ERROR_INVALID_ARGUMENTS;
+}
+
/* return allocated string w/printf() result */
-char *allocPrintf(const char *fmt, va_list ap)
+char *alloc_printf(const char *fmt, va_list ap)
{
char *string = NULL;