Add qemu 2.4.0

[kvmfornfv.git] / qemu / migration / qemu-file-internal.h

diff --git a/qemu/migration/qemu-file-internal.h b/qemu/migration/qemu-file-internal.h
new file mode 100644 (file)
index 0000000..d95e853
--- /dev/null
+++ b/qemu/migration/qemu-file-internal.h
@@ -0,0 +1,53 @@
+/*
+ * QEMU System Emulator
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef QEMU_FILE_INTERNAL_H
+#define QEMU_FILE_INTERNAL_H 1
+
+#include "qemu-common.h"
+#include "qemu/iov.h"
+
+#define IO_BUF_SIZE 32768
+#define MAX_IOV_SIZE MIN(IOV_MAX, 64)
+
+struct QEMUFile {
+    const QEMUFileOps *ops;
+    void *opaque;
+
+    int64_t bytes_xfer;
+    int64_t xfer_limit;
+
+    int64_t pos; /* start of buffer when writing, end of buffer
+                    when reading */
+    int buf_index;
+    int buf_size; /* 0 when writing */
+    uint8_t buf[IO_BUF_SIZE];
+
+    struct iovec iov[MAX_IOV_SIZE];
+    unsigned int iovcnt;
+
+    int last_error;
+};
+
+#endif