#include "exec/cpu-common.h"
#include "io/channel.h"
-/*
- * This function provides hooks around different
- * stages of RAM migration.
- * 'data' is call specific data associated with the 'flags' value
- */
-typedef int (QEMURamHookFunc)(QEMUFile *f, uint64_t flags, void *data);
-
-/*
- * Constants used by ram_control_* hooks
- */
-#define RAM_CONTROL_SETUP 0
-#define RAM_CONTROL_ROUND 1
-#define RAM_CONTROL_HOOK 2
-#define RAM_CONTROL_FINISH 3
-#define RAM_CONTROL_BLOCK_REG 4
-
-/*
- * This function allows override of where the RAM page
- * is saved (such as RDMA, for example.)
- */
-typedef size_t (QEMURamSaveFunc)(QEMUFile *f,
- ram_addr_t block_offset,
- ram_addr_t offset,
- size_t size,
- uint64_t *bytes_sent);
-
-typedef struct QEMUFileHooks {
- QEMURamHookFunc *before_ram_iterate;
- QEMURamHookFunc *after_ram_iterate;
- QEMURamHookFunc *hook_ram_load;
- QEMURamSaveFunc *save_page;
-} QEMUFileHooks;
-
QEMUFile *qemu_file_new_input(QIOChannel *ioc);
QEMUFile *qemu_file_new_output(QIOChannel *ioc);
-void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHooks *hooks);
int qemu_fclose(QEMUFile *f);
/*
- * qemu_file_total_transferred:
- *
- * Report the total number of bytes transferred with
- * this file.
- *
- * For writable files, any pending buffers will be
- * flushed, so the reported value will be equal to
- * the number of bytes transferred on the wire.
+ * qemu_file_transferred:
*
- * For readable files, the reported value will be
- * equal to the number of bytes transferred on the
- * wire.
- *
- * Returns: the total bytes transferred
- */
-uint64_t qemu_file_total_transferred(QEMUFile *f);
-
-/*
- * qemu_file_total_transferred_fast:
- *
- * As qemu_file_total_transferred except for writable
- * files, where no flush is performed and the reported
- * amount will include the size of any queued buffers,
- * on top of the amount actually transferred.
+ * No flush is performed and the reported amount will include the size
+ * of any queued buffers, on top of the amount actually transferred.
*
* Returns: the total bytes transferred and queued
*/
-uint64_t qemu_file_total_transferred_fast(QEMUFile *f);
+uint64_t qemu_file_transferred(QEMUFile *f);
/*
* put_buffer without copying the buffer.
*/
void qemu_put_buffer_async(QEMUFile *f, const uint8_t *buf, size_t size,
bool may_free);
-bool qemu_file_mode_is_not_valid(const char *mode);
-bool qemu_file_is_writable(QEMUFile *f);
#include "migration/qemu-file-types.h"
size_t coroutine_mixed_fn qemu_peek_buffer(QEMUFile *f, uint8_t **buf, size_t size, size_t offset);
size_t coroutine_mixed_fn qemu_get_buffer_in_place(QEMUFile *f, uint8_t **buf, size_t size);
-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);
-bool qemu_file_buffer_empty(QEMUFile *file);
/*
* Note that you can only peek continuous bytes from where the current pointer
*/
int coroutine_mixed_fn qemu_peek_byte(QEMUFile *f, int offset);
void qemu_file_skip(QEMUFile *f, int size);
-/*
- * qemu_file_credit_transfer:
- *
- * Report on a number of bytes that have been transferred
- * out of band from the main file object I/O methods. This
- * accounting information tracks the total migration traffic.
- */
-void qemu_file_credit_transfer(QEMUFile *f, size_t size);
-void qemu_file_reset_rate_limit(QEMUFile *f);
-/*
- * qemu_file_acct_rate_limit:
- *
- * Report on a number of bytes the have been transferred
- * out of band from the main file object I/O methods, and
- * need to be applied to the rate limiting calcuations
- */
-void qemu_file_acct_rate_limit(QEMUFile *f, uint64_t len);
-void qemu_file_set_rate_limit(QEMUFile *f, uint64_t new_rate);
-uint64_t qemu_file_get_rate_limit(QEMUFile *f);
-int qemu_file_get_error_obj(QEMUFile *f, Error **errp);
int qemu_file_get_error_obj_any(QEMUFile *f1, QEMUFile *f2, Error **errp);
void qemu_file_set_error_obj(QEMUFile *f, int ret, Error *err);
+int qemu_file_get_error_obj(QEMUFile *f, Error **errp);
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);
+int qemu_fflush(QEMUFile *f);
void qemu_file_set_blocking(QEMUFile *f, bool block);
int qemu_file_get_to_fd(QEMUFile *f, int fd, size_t size);
+void qemu_set_offset(QEMUFile *f, off_t off, int whence);
+off_t qemu_get_offset(QEMUFile *f);
+void qemu_put_buffer_at(QEMUFile *f, const uint8_t *buf, size_t buflen,
+ off_t pos);
+size_t qemu_get_buffer_at(QEMUFile *f, const uint8_t *buf, size_t buflen,
+ off_t pos);
-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);
-
-/* Whenever this is found in the data stream, the flags
- * will be passed to ram_control_load_hook in the incoming-migration
- * side. This lets before_ram_iterate/after_ram_iterate add
- * transport-specific sections to the RAM migration data.
- */
-#define RAM_SAVE_FLAG_HOOK 0x80
-
-#define RAM_SAVE_CONTROL_NOT_SUPP -1000
-#define RAM_SAVE_CONTROL_DELAYED -2000
-
-size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset,
- ram_addr_t offset, size_t size,
- uint64_t *bytes_sent);
QIOChannel *qemu_file_get_ioc(QEMUFile *file);
#endif
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