btrfs-progs: move message helpers out of utils

Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 131 insertions, 0 deletions

diff --git a/messages.h b/messages.h
new file mode 100644
index 00000000..fa00ff49
--- /dev/null
+++ b/messages.h
@@ -0,0 +1,131 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#ifndef __BTRFS_MESSAGES_H__
+#define __BTRFS_MESSAGES_H__
+
+#if DEBUG_VERBOSE_ERROR
+#define	PRINT_VERBOSE_ERROR	fprintf(stderr, "%s:%d:", __FILE__, __LINE__)
+#else
+#define PRINT_VERBOSE_ERROR
+#endif
+
+#if DEBUG_TRACE_ON_ERROR
+#define PRINT_TRACE_ON_ERROR	print_trace()
+#else
+#define PRINT_TRACE_ON_ERROR
+#endif
+
+#if DEBUG_ABORT_ON_ERROR
+#define DO_ABORT_ON_ERROR	abort()
+#else
+#define DO_ABORT_ON_ERROR
+#endif
+
+#define error(fmt, ...)							\
+	do {								\
+		PRINT_TRACE_ON_ERROR;					\
+		PRINT_VERBOSE_ERROR;					\
+		__error((fmt), ##__VA_ARGS__);				\
+		DO_ABORT_ON_ERROR;					\
+	} while (0)
+
+#define error_on(cond, fmt, ...)					\
+	do {								\
+		if ((cond))						\
+			PRINT_TRACE_ON_ERROR;				\
+		if ((cond))						\
+			PRINT_VERBOSE_ERROR;				\
+		__error_on((cond), (fmt), ##__VA_ARGS__);		\
+		if ((cond))						\
+			DO_ABORT_ON_ERROR;				\
+	} while (0)
+
+#define warning(fmt, ...)						\
+	do {								\
+		PRINT_TRACE_ON_ERROR;					\
+		PRINT_VERBOSE_ERROR;					\
+		__warning((fmt), ##__VA_ARGS__);			\
+	} while (0)
+
+#define warning_on(cond, fmt, ...)					\
+	do {								\
+		if ((cond))						\
+			PRINT_TRACE_ON_ERROR;				\
+		if ((cond))						\
+			PRINT_VERBOSE_ERROR;				\
+		__warning_on((cond), (fmt), ##__VA_ARGS__);		\
+	} while (0)
+
+__attribute__ ((format (printf, 1, 2)))
+static inline void __warning(const char *fmt, ...)
+{
+	va_list args;
+
+	fputs("WARNING: ", stderr);
+	va_start(args, fmt);
+	vfprintf(stderr, fmt, args);
+	va_end(args);
+	fputc('\n', stderr);
+}
+
+__attribute__ ((format (printf, 1, 2)))
+static inline void __error(const char *fmt, ...)
+{
+	va_list args;
+
+	fputs("ERROR: ", stderr);
+	va_start(args, fmt);
+	vfprintf(stderr, fmt, args);
+	va_end(args);
+	fputc('\n', stderr);
+}
+
+__attribute__ ((format (printf, 2, 3)))
+static inline int __warning_on(int condition, const char *fmt, ...)
+{
+	va_list args;
+
+	if (!condition)
+		return 0;
+
+	fputs("WARNING: ", stderr);
+	va_start(args, fmt);
+	vfprintf(stderr, fmt, args);
+	va_end(args);
+	fputc('\n', stderr);
+
+	return 1;
+}
+
+__attribute__ ((format (printf, 2, 3)))
+static inline int __error_on(int condition, const char *fmt, ...)
+{
+	va_list args;
+
+	if (!condition)
+		return 0;
+
+	fputs("ERROR: ", stderr);
+	va_start(args, fmt);
+	vfprintf(stderr, fmt, args);
+	va_end(args);
+	fputc('\n', stderr);
+
+	return 1;
+}
+
+#endif