block/dirty-bitmap: refactor bdrv_dirty_bitmap_next

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

diff --git a/migration/qemu-file.h b/migration/qemu-file.h
index f4f356ab12af35e99d4b85be79af268b6a351237..a9b6d6ccb7d268d068a40a7e1de6a7de1f4e7b37 100644 (file)
--- a/migration/qemu-file.h
+++ b/migration/qemu-file.h
@@ -25,12 +25,16 @@
 #ifndef MIGRATION_QEMU_FILE_H
 #define MIGRATION_QEMU_FILE_H
 
+#include <zlib.h>
+#include "exec/cpu-common.h"
+
 /* Read a chunk of data from a file at the given position.  The pos argument
  * can be ignored if the file is only be used for streaming.  The number of
  * bytes actually read should be returned.
  */
 typedef ssize_t (QEMUFileGetBufferFunc)(void *opaque, uint8_t *buf,
-                                        int64_t pos, size_t size);
+                                        int64_t pos, size_t size,
+                                        Error **errp);
 
 /* Close a file
  *
@@ -39,7 +43,7 @@ typedef ssize_t (QEMUFileGetBufferFunc)(void *opaque, uint8_t *buf,
  * The meaning of return value on success depends on the specific back-end being
  * used.
  */
-typedef int (QEMUFileCloseFunc)(void *opaque);
+typedef int (QEMUFileCloseFunc)(void *opaque, Error **errp);
 
 /* Called to return the OS file descriptor associated to the QEMUFile.
  */
@@ -47,14 +51,15 @@ typedef int (QEMUFileGetFD)(void *opaque);
 
 /* Called to change the blocking mode of the file
  */
-typedef int (QEMUFileSetBlocking)(void *opaque, bool enabled);
+typedef int (QEMUFileSetBlocking)(void *opaque, bool enabled, Error **errp);
 
 /*
  * This function writes an iovec to file. The handler must write all
  * of the data or return a negative errno value.
  */
 typedef ssize_t (QEMUFileWritevBufferFunc)(void *opaque, struct iovec *iov,
-                                           int iovcnt, int64_t pos);
+                                           int iovcnt, int64_t pos,
+                                           Error **errp);
 
 /*
  * This function provides hooks around different
@@ -95,7 +100,8 @@ typedef QEMUFile *(QEMURetPathFunc)(void *opaque);
  * Existing blocking reads/writes must be woken
  * Returns 0 on success, -err on error
  */
-typedef int (QEMUFileShutdownFunc)(void *opaque, bool rd, bool wr);
+typedef int (QEMUFileShutdownFunc)(void *opaque, bool rd, bool wr,
+                                   Error **errp);
 
 typedef struct QEMUFileOps {
     QEMUFileGetBufferFunc *get_buffer;
@@ -132,8 +138,8 @@ bool qemu_file_is_writable(QEMUFile *f);
 
 size_t qemu_peek_buffer(QEMUFile *f, uint8_t **buf, size_t size, size_t offset);
 size_t qemu_get_buffer_in_place(QEMUFile *f, uint8_t **buf, size_t size);
-ssize_t qemu_put_compression_data(QEMUFile *f, const uint8_t *p, size_t size,
-                                  int level);
+ssize_t qemu_put_compression_data(QEMUFile *f, z_stream *stream,
+                                  const uint8_t *p, size_t size);
 int qemu_put_qemu_file(QEMUFile *f_des, QEMUFile *f_src);
 
 /*
@@ -145,17 +151,17 @@ int qemu_peek_byte(QEMUFile *f, int offset);
 void qemu_file_skip(QEMUFile *f, int size);
 void qemu_update_position(QEMUFile *f, size_t size);
 void qemu_file_reset_rate_limit(QEMUFile *f);
+void qemu_file_update_transfer(QEMUFile *f, int64_t len);
 void qemu_file_set_rate_limit(QEMUFile *f, int64_t new_rate);
 int64_t qemu_file_get_rate_limit(QEMUFile *f);
-int qemu_file_get_error(QEMUFile *f);
+int qemu_file_get_error_obj(QEMUFile *f, Error **errp);
+void qemu_file_set_error_obj(QEMUFile *f, int ret, Error *err);
 void qemu_file_set_error(QEMUFile *f, int ret);
 int qemu_file_shutdown(QEMUFile *f);
 QEMUFile *qemu_file_get_return_path(QEMUFile *f);
 void qemu_fflush(QEMUFile *f);
 void qemu_file_set_blocking(QEMUFile *f, bool block);
 
-size_t qemu_get_counted_string(QEMUFile *f, char buf[256]);
-
 void ram_control_before_iterate(QEMUFile *f, uint64_t flags);
 void ram_control_after_iterate(QEMUFile *f, uint64_t flags);
 void ram_control_load_hook(QEMUFile *f, uint64_t flags, void *data);
@@ -174,6 +180,4 @@ size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset,
                              ram_addr_t offset, size_t size,
                              uint64_t *bytes_sent);
 
-void qemu_put_counted_string(QEMUFile *f, const char *name);
-
 #endif