[PATCH v6 3/6] common: console: introduce console_record_isempty helper

[Svyatoslav Ryhel]

From: Ion Agorria <ion at agorria.com>

Add console_record_isempty to check if console record buffer
contains any data.

Signed-off-by: Ion Agorria <ion at agorria.com>
Signed-off-by: Svyatoslav Ryhel <clamor95 at gmail.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek at baylibre.com>
---
 common/console.c  |  5 +++++
 include/console.h | 13 +++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/common/console.c b/common/console.c
index 1ffda49c87..6f2089caa0 100644
--- a/common/console.c
+++ b/common/console.c
@@ -853,6 +853,11 @@ int console_record_avail(void)
 	return membuff_avail((struct membuff *)&gd->console_out);
 }
 
+bool console_record_isempty(void)
+{
+	return membuff_isempty((struct membuff *)&gd->console_out);
+}
+
 int console_in_puts(const char *str)
 {
 	return membuff_put((struct membuff *)&gd->console_in, str, strlen(str));
diff --git a/include/console.h b/include/console.h
index e29817e57b..2617e16007 100644
--- a/include/console.h
+++ b/include/console.h
@@ -84,6 +84,13 @@ int console_record_readline(char *str, int maxlen);
  */
 int console_record_avail(void);
 
+/**
+ * console_record_isempty() - Returns if console output is empty
+ *
+ * Return: true if empty
+ */
+bool console_record_isempty(void);
+
 /**
  * console_in_puts() - Write a string to the console input buffer
  *
@@ -131,6 +138,12 @@ static inline int console_in_puts(const char *str)
 	return 0;
 }
 
+static inline bool console_record_isempty(void)
+{
+	/* Always empty */
+	return true;
+}
+
 #endif /* !CONFIG_CONSOLE_RECORD */
 
 /**
-- 
2.40.1