X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=include%2Flttngerr.h;h=b14f23218526e4843dc2131bfc1aee76fc8232ed;hp=5c3d8c4fb824a8e877d7e445e6fac389cd5bf772;hb=1fea938d0d3adc783bb49d7ff3d0686ba87b0520;hpb=fac6795d6e2c60e79bdc7dab42da94d2025a57d3;ds=sidebyside

diff --git a/include/lttngerr.h b/include/lttngerr.h
index 5c3d8c4fb..b14f23218 100644
--- a/include/lttngerr.h
+++ b/include/lttngerr.h
@@ -1,9 +1,10 @@
-/* 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
@@ -13,52 +14,75 @@
  * 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) {                                      \
+				fprintf(stdout, fmt, ## args);                            \
+			} else if (((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(stderr, 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 */