-/* Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
+/*
+ * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
*
* 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.
+ * as published by the Free Software Foundation; only version 2
+ * of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
*/
#ifndef _LTTNGERR_H
#define _LTTNGERR_H
#include <errno.h>
-#include <stdarg.h>
+#include <stdio.h>
+
+/* Stringify the expansion of a define */
+#define XSTR(d) STR(d)
+#define STR(s) #s
extern int opt_quiet;
extern int opt_verbose;
-enum __lttng_print_type {
- PRINT_ERR,
- PRINT_WARN,
- PRINT_BUG,
- PRINT_DBG,
- PRINT_MSG,
-};
+#define PRINT_ERR 0x1
+#define PRINT_WARN 0x2
+#define PRINT_BUG 0x3
+#define PRINT_MSG 0x4
+#define PRINT_DBG 0x10
+#define PRINT_DBG2 0x20
+#define PRINT_DBG3 0x30
/*
- * __lttng_print
- *
- * Internal function for printing message
- * depending on command line option and verbosity.
+ * Macro for printing message depending on command line option and verbosity.
*/
-void __lttng_print(enum __lttng_print_type type, const char *fmt, ...)
-{
- va_list ap;
- va_start(ap, fmt);
+#define __lttng_print(type, fmt, args...) \
+ do { \
+ if (opt_quiet == 0) { \
+ if (type == PRINT_MSG || \
+ ((type & PRINT_DBG) && opt_verbose == 1) || \
+ ((type & (PRINT_DBG | PRINT_DBG2)) && \
+ opt_verbose == 2) || \
+ ((type & (PRINT_DBG | PRINT_DBG2 | PRINT_DBG3)) && \
+ opt_verbose == 3)) { \
+ fprintf(stdout, fmt, ## args); \
+ } else if (type & (PRINT_ERR | PRINT_WARN | PRINT_BUG)) { \
+ fprintf(stderr, fmt, ## args); \
+ } \
+ } \
+ } while (0);
+
+#define MSG(fmt, args...) \
+ __lttng_print(PRINT_MSG, fmt "\n", ## args)
+#define ERR(fmt, args...) \
+ __lttng_print(PRINT_ERR, "Error: " fmt "\n", ## args)
+#define WARN(fmt, args...) \
+ __lttng_print(PRINT_WARN, "Warning: " fmt "\n", ## args)
+#define BUG(fmt, args...) \
+ __lttng_print(PRINT_BUG, "BUG: " fmt "\n", ## args)
- if (opt_quiet == 0) {
- if (type == PRINT_MSG || (opt_verbose && type == PRINT_DBG)) {
- vfprintf(stdout, fmt, ap);
- } else if (type != PRINT_MSG && type != PRINT_DBG) {
- vfprintf(stderr, fmt, ap);
- }
- }
+/* Three level of debug. Use -v, -vv or -vvv for the levels */
+#define DBG(fmt, args...) __lttng_print(PRINT_DBG, "DEBUG1: " fmt \
+ " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__)
+#define DBG2(fmt, args...) __lttng_print(PRINT_DBG2, "DEBUG2: " fmt \
+ " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__)
+#define DBG3(fmt, args...) __lttng_print(PRINT_DBG3, "DEBUG3: " fmt \
+ " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__)
- va_end(ap);
-}
+#define _PERROR(fmt, args...) \
+ __lttng_print(PRINT_ERR, "perror " fmt "\n", ## args)
-#define MSG(fmt, args...) __lttng_print(PRINT_MSG, fmt "\n", ## args)
-#define ERR(fmt, args...) __lttng_print(PRINT_ERR, "Error: " fmt "\n", ## args)
-#define WARN(fmt, args...) __lttng_print(PRINT_WARN, "Warning: " fmt "\n", ## args)
-#define BUG(fmt, args...) __lttng_print(PRINT_BUG, "BUG: " fmt "\n", ## args)
-#define DBG(fmt, args...) __lttng_print(PRINT_DBG, "DEBUG: " fmt "\n", ## args)
+#define PERROR(call, args...) \
+ do { \
+ char *buf; \
+ char tmp[200]; \
+ buf = strerror_r(errno, tmp, sizeof(tmp)); \
+ _PERROR(call ": %s", ## args, buf); \
+ } while(0);
#endif /* _LTTNGERR_H */