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[Qemu-devel] [PATCH 07/13] migration/qemu-file: add qemu_put_counted_str
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[Qemu-devel] [PATCH 07/13] migration/qemu-file: add qemu_put_counted_string() |
Date: |
Wed, 11 Nov 2015 18:16:37 +0300 |
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.
Reviewed-by: John Snow <address@hidden>
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---
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 b5d08d2..ea8aef8 100644
--- a/include/migration/qemu-file.h
+++ b/include/migration/qemu-file.h
@@ -329,4 +329,6 @@ 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 0bbd257..1e90810 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -662,6 +662,19 @@ 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 *name)
+{
+ size_t len = strlen(name);
+
+ assert(len < 256);
+ qemu_put_byte(f, len);
+ qemu_put_buffer(f, (const uint8_t *)name, 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
--
2.1.4
- [Qemu-devel] [PATCH v7 00/13] Dirty bitmaps migration, Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 03/13] block: tiny refactoring: minimize hbitmap_(set/reset) usage, Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 12/13] iotests: add default node-name, Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 05/13] block: add bdrv_next_dirty_bitmap(), Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 10/13] iotests: add add_incoming_migration to VM class, Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 07/13] migration/qemu-file: add qemu_put_counted_string(),
Vladimir Sementsov-Ogievskiy <=
- [Qemu-devel] [PATCH 11/13] qapi: add md5 checksum of last dirty bitmap level to query-block, Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 06/13] qapi: add dirty-bitmaps migration capability, Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 09/13] iotests: maintain several vms in test, Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 01/13] hbitmap: serialization, Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 13/13] iotests: add dirty bitmap migration test, Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 04/13] block: add meta bitmaps, Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 02/13] block: BdrvDirtyBitmap serialization interface, Vladimir Sementsov-Ogievskiy, 2015/11/11
- [Qemu-devel] [PATCH 08/13] migration: add migration/block-dirty-bitmap.c, Vladimir Sementsov-Ogievskiy, 2015/11/11