[Qemu-devel] [PATCH 07/12] migration/qemu-file: add qemu_put_counted_string()

[Vladimir Sementsov-Ogievskiy]

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 <address@hidden>
---
 include/migration/qemu-file.h | 2 ++
 migration/qemu-file.c         | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h
index ea49f33..cfbbdcb 100644
--- a/include/migration/qemu-file.h
+++ b/include/migration/qemu-file.h
@@ -319,4 +319,6 @@ 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 6bb3dc1..206cb54 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -611,3 +611,12 @@ size_t qemu_get_counted_string(QEMUFile *f, char buf[256])
 
     return res == len ? res : 0;
 }
+
+void qemu_put_counted_string(QEMUFile *f, const char *name)
+{
+    int len = strlen(name);
+
+    assert(len < 256);
+    qemu_put_byte(f, len);
+    qemu_put_buffer(f, (const uint8_t *)name, len);
+}
-- 
2.1.4