[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v6 02/11] Add uleb encoding/decoding functions
From: |
Orit Wasserman |
Subject: |
[Qemu-devel] [PATCH v6 02/11] Add uleb encoding/decoding functions |
Date: |
Wed, 25 Jan 2012 13:26:40 +0200 |
Implement Unsigned Little Endian Base 128.
Signed-off-by: Orit Wasserman <address@hidden>
---
migration.h | 4 ++++
savevm.c | 26 ++++++++++++++++++++++++++
2 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/migration.h b/migration.h
index 372b066..50dec18 100644
--- a/migration.h
+++ b/migration.h
@@ -95,4 +95,8 @@ void migrate_add_blocker(Error *reason);
*/
void migrate_del_blocker(Error *reason);
+/* ULEB128 */
+int uleb128_encode_small(uint8_t *out, uint32_t n);
+int uleb128_decode_small(const uint8 *in, uint32_t *n);
+
#endif
diff --git a/savevm.c b/savevm.c
index 80be1ff..304db31 100644
--- a/savevm.c
+++ b/savevm.c
@@ -2297,3 +2297,29 @@ void vmstate_register_ram_global(MemoryRegion *mr)
{
vmstate_register_ram(mr, NULL);
}
+
+/* ULEB128 */
+int uleb128_encode_small(uint8_t *out, uint32_t n)
+{
+ if (n < 0x80) {
+ *out++ = n;
+ return 1;
+ } else {
+ *out++ = (n & 0x7f) | 0x80;
+ *out++ = n >> 7;
+ }
+ return 0;
+}
+
+int uleb128_decode_small(const uint8 *in, uint32_t *n)
+{
+ if (!(*in & 0x80)) {
+ *n = *in++;
+ return 1;
+ } else {
+ *n = *in++ & 0x7f;
+ *n |= *in++ << 7;
+ return 0;
+ }
+}
+
--
1.7.6.5
- [Qemu-devel] [PATCH v6 00/11] XBRLE delta for live migration of large memory app, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 03/11] Add save_block_hdr function, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 04/11] Add host_from_stream_offset_versioned function, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 05/11] Add XBZRLE to ram_save_block and ram_save_live, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 06/11] Add MigrationParams structure, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 07/11] Add XBZRLE parameters to MigrationState, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 08/11] Add migration capabilties, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 09/11] Add set_cachesize command, Orit Wasserman, 2012/01/25