1 files changed, 114 insertions, 0 deletions
diff --git a/include/json_print.h b/include/json_print.h
new file mode 100644
index 0000000..daebcf5
--- /dev/null
+++ b/include/json_print.h
@@ -0,0 +1,114 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * json_print.h		print regular or json output, based on json_writer.
+ *
+ * Authors:    Julien Fortin, <julien@cumulusnetworks.com>
+ */
+
+#ifndef _JSON_PRINT_H_
+#define _JSON_PRINT_H_
+
+#include "json_writer.h"
+#include "color.h"
+
+#define _IS_JSON_CONTEXT(type) (is_json_context() && (type & PRINT_JSON || type & PRINT_ANY))
+#define _IS_FP_CONTEXT(type)   (!is_json_context() && (type & PRINT_FP || type & PRINT_ANY))
+
+json_writer_t *get_json_writer(void);
+
+/*
+ * use:
+ *      - PRINT_ANY for context based output
+ *      - PRINT_FP for non json specific output
+ *      - PRINT_JSON for json specific output
+ */
+enum output_type {
+	PRINT_FP = 1,
+	PRINT_JSON = 2,
+	PRINT_ANY = 4,
+};
+
+void new_json_obj(int json);
+void delete_json_obj(void);
+void new_json_obj_plain(int json);
+void delete_json_obj_plain(void);
+
+bool is_json_context(void);
+
+void open_json_object(const char *str);
+void close_json_object(void);
+void open_json_array(enum output_type type, const char *delim);
+void close_json_array(enum output_type type, const char *delim);
+
+void print_nl(void);
+
+#define _PRINT_FUNC(type_name, type)					\
+	int print_color_##type_name(enum output_type t,			\
+				    enum color_attr color,		\
+				    const char *key,			\
+				    const char *fmt,			\
+				    type value);			\
+									\
+	static inline int print_##type_name(enum output_type t,		\
+					    const char *key,		\
+					    const char *fmt,		\
+					    type value)			\
+	{								\
+		return print_color_##type_name(t, COLOR_NONE, key, fmt,	\
+					       value);			\
+	}
+
+/* These functions return 0 if printing to a JSON context, number of
+ * characters printed otherwise (as calculated by printf(3)).
+ */
+_PRINT_FUNC(int, int)
+_PRINT_FUNC(s64, int64_t)
+_PRINT_FUNC(bool, bool)
+_PRINT_FUNC(on_off, bool)
+_PRINT_FUNC(null, const char*)
+_PRINT_FUNC(string, const char*)
+_PRINT_FUNC(uint, unsigned int)
+_PRINT_FUNC(size, __u32)
+_PRINT_FUNC(u64, uint64_t)
+_PRINT_FUNC(hhu, unsigned char)
+_PRINT_FUNC(hu, unsigned short)
+_PRINT_FUNC(hex, unsigned int)
+_PRINT_FUNC(0xhex, unsigned long long)
+_PRINT_FUNC(luint, unsigned long)
+_PRINT_FUNC(lluint, unsigned long long)
+_PRINT_FUNC(float, double)
+_PRINT_FUNC(tv, const struct timeval *)
+#undef _PRINT_FUNC
+
+#define _PRINT_NAME_VALUE_FUNC(type_name, type, format_char)		  \
+	void print_##type_name##_name_value(const char *name, type value) \
+
+_PRINT_NAME_VALUE_FUNC(uint, unsigned int, u);
+_PRINT_NAME_VALUE_FUNC(string, const char*, s);
+#undef _PRINT_NAME_VALUE_FUNC
+
+int print_color_rate(bool use_iec, enum output_type t, enum color_attr color,
+		     const char *key, const char *fmt, unsigned long long rate);
+
+static inline int print_rate(bool use_iec, enum output_type t,
+			     const char *key, const char *fmt,
+			     unsigned long long rate)
+{
+	return print_color_rate(use_iec, t, COLOR_NONE, key, fmt, rate);
+}
+
+unsigned int print_range(const char *name, __u32 start, __u32 end);
+
+int print_color_bool_opt(enum output_type type, enum color_attr color,
+			 const char *key, bool value, bool show);
+
+static inline int print_bool_opt(enum output_type type,
+				 const char *key, bool value, bool show)
+{
+	return print_color_bool_opt(type, COLOR_NONE, key, value, show);
+}
+
+/* A backdoor to the size formatter. Please use print_size() instead. */
+char *sprint_size(__u32 sz, char *buf);
+
+#endif /* _JSON_PRINT_H_ */