Add function opposite to qemu_get_counted_string.
qemu_put_counted_string puts one-byte length of the string (string
should not be longer than 255 characters), and then it puts the string,
without last zero byte.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com>
Reviewed-by: John Snow <js...@redhat.com>
Reviewed-by: Juan Quintela <quint...@redhat.com>
---
include/migration/qemu-file.h | 2 ++
migration/qemu-file.c | 13 +++++++++++++
2 files changed, 15 insertions(+)
diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h
index abedd46..d860c92 100644
--- a/include/migration/qemu-file.h
+++ b/include/migration/qemu-file.h
@@ -309,4 +309,6 @@ static inline void qemu_get_sbe64s(QEMUFile *f, int64_t *pv)
size_t qemu_get_counted_string(QEMUFile *f, char buf[256]);
+void qemu_put_counted_string(QEMUFile *f, const char *name);
+
#endif
diff --git a/migration/qemu-file.c b/migration/qemu-file.c
index e9fae31..8e928b2 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -691,6 +691,19 @@ size_t qemu_get_counted_string(QEMUFile *f, char buf[256])
}
/*
+ * Put a string with one preceding byte containing its length. The length of
+ * the string should be less than 256.
+ */
+void qemu_put_counted_string(QEMUFile *f, const char *str)
+{
+ size_t len = strlen(str);
+
+ assert(len < 256);
+ qemu_put_byte(f, len);
+ qemu_put_buffer(f, (const uint8_t *)str, len);
+}
+
+/*
* Set the blocking state of the QEMUFile.
* Note: On some transports the OS only keeps a single blocking state for
* both directions, and thus changing the blocking on the main
--
1.8.3.1
