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authorPaolo Bonzini <pbonzini@redhat.com>2012-12-17 18:19:44 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2012-12-19 08:31:31 +0100
commit737e150e89c44c6b33691a627e24bac7fb58f349 (patch)
tree6599e1e5a3bd131ba2c18f06d71db71504137b17 /block.h
parent7b1b5d191385ca52e96caae2a05c64f3a63855d9 (diff)
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block: move include files to include/block/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'block.h')
-rw-r--r--block.h439
1 files changed, 0 insertions, 439 deletions
diff --git a/block.h b/block.h
deleted file mode 100644
index 0b22892..0000000
--- a/block.h
+++ /dev/null
@@ -1,439 +0,0 @@
-#ifndef BLOCK_H
-#define BLOCK_H
-
-#include "qemu-aio.h"
-#include "qemu-common.h"
-#include "qemu-option.h"
-#include "qemu-coroutine.h"
-#include "qapi/qmp/qobject.h"
-#include "qapi-types.h"
-
-/* block.c */
-typedef struct BlockDriver BlockDriver;
-typedef struct BlockJob BlockJob;
-
-typedef struct BlockDriverInfo {
- /* in bytes, 0 if irrelevant */
- int cluster_size;
- /* offset at which the VM state can be saved (0 if not possible) */
- int64_t vm_state_offset;
- bool is_dirty;
-} BlockDriverInfo;
-
-typedef struct BlockFragInfo {
- uint64_t allocated_clusters;
- uint64_t total_clusters;
- uint64_t fragmented_clusters;
-} BlockFragInfo;
-
-typedef struct QEMUSnapshotInfo {
- char id_str[128]; /* unique snapshot id */
- /* the following fields are informative. They are not needed for
- the consistency of the snapshot */
- char name[256]; /* user chosen name */
- uint64_t vm_state_size; /* VM state info size */
- uint32_t date_sec; /* UTC date of the snapshot */
- uint32_t date_nsec;
- uint64_t vm_clock_nsec; /* VM clock relative to boot */
-} QEMUSnapshotInfo;
-
-/* Callbacks for block device models */
-typedef struct BlockDevOps {
- /*
- * Runs when virtual media changed (monitor commands eject, change)
- * Argument load is true on load and false on eject.
- * Beware: doesn't run when a host device's physical media
- * changes. Sure would be useful if it did.
- * Device models with removable media must implement this callback.
- */
- void (*change_media_cb)(void *opaque, bool load);
- /*
- * Runs when an eject request is issued from the monitor, the tray
- * is closed, and the medium is locked.
- * Device models that do not implement is_medium_locked will not need
- * this callback. Device models that can lock the medium or tray might
- * want to implement the callback and unlock the tray when "force" is
- * true, even if they do not support eject requests.
- */
- void (*eject_request_cb)(void *opaque, bool force);
- /*
- * Is the virtual tray open?
- * Device models implement this only when the device has a tray.
- */
- bool (*is_tray_open)(void *opaque);
- /*
- * Is the virtual medium locked into the device?
- * Device models implement this only when device has such a lock.
- */
- bool (*is_medium_locked)(void *opaque);
- /*
- * Runs when the size changed (e.g. monitor command block_resize)
- */
- void (*resize_cb)(void *opaque);
-} BlockDevOps;
-
-#define BDRV_O_RDWR 0x0002
-#define BDRV_O_SNAPSHOT 0x0008 /* open the file read only and save writes in a snapshot */
-#define BDRV_O_NOCACHE 0x0020 /* do not use the host page cache */
-#define BDRV_O_CACHE_WB 0x0040 /* use write-back caching */
-#define BDRV_O_NATIVE_AIO 0x0080 /* use native AIO instead of the thread pool */
-#define BDRV_O_NO_BACKING 0x0100 /* don't open the backing file */
-#define BDRV_O_NO_FLUSH 0x0200 /* disable flushing on this disk */
-#define BDRV_O_COPY_ON_READ 0x0400 /* copy read backing sectors into image */
-#define BDRV_O_INCOMING 0x0800 /* consistency hint for incoming migration */
-#define BDRV_O_CHECK 0x1000 /* open solely for consistency check */
-#define BDRV_O_ALLOW_RDWR 0x2000 /* allow reopen to change from r/o to r/w */
-
-#define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH)
-
-#define BDRV_SECTOR_BITS 9
-#define BDRV_SECTOR_SIZE (1ULL << BDRV_SECTOR_BITS)
-#define BDRV_SECTOR_MASK ~(BDRV_SECTOR_SIZE - 1)
-
-typedef enum {
- BDRV_ACTION_REPORT, BDRV_ACTION_IGNORE, BDRV_ACTION_STOP
-} BlockErrorAction;
-
-typedef QSIMPLEQ_HEAD(BlockReopenQueue, BlockReopenQueueEntry) BlockReopenQueue;
-
-typedef struct BDRVReopenState {
- BlockDriverState *bs;
- int flags;
- void *opaque;
-} BDRVReopenState;
-
-
-void bdrv_iostatus_enable(BlockDriverState *bs);
-void bdrv_iostatus_reset(BlockDriverState *bs);
-void bdrv_iostatus_disable(BlockDriverState *bs);
-bool bdrv_iostatus_is_enabled(const BlockDriverState *bs);
-void bdrv_iostatus_set_err(BlockDriverState *bs, int error);
-void bdrv_info_print(Monitor *mon, const QObject *data);
-void bdrv_info(Monitor *mon, QObject **ret_data);
-void bdrv_stats_print(Monitor *mon, const QObject *data);
-void bdrv_info_stats(Monitor *mon, QObject **ret_data);
-
-/* disk I/O throttling */
-void bdrv_io_limits_enable(BlockDriverState *bs);
-void bdrv_io_limits_disable(BlockDriverState *bs);
-bool bdrv_io_limits_enabled(BlockDriverState *bs);
-
-void bdrv_init(void);
-void bdrv_init_with_whitelist(void);
-BlockDriver *bdrv_find_protocol(const char *filename);
-BlockDriver *bdrv_find_format(const char *format_name);
-BlockDriver *bdrv_find_whitelisted_format(const char *format_name);
-int bdrv_create(BlockDriver *drv, const char* filename,
- QEMUOptionParameter *options);
-int bdrv_create_file(const char* filename, QEMUOptionParameter *options);
-BlockDriverState *bdrv_new(const char *device_name);
-void bdrv_make_anon(BlockDriverState *bs);
-void bdrv_swap(BlockDriverState *bs_new, BlockDriverState *bs_old);
-void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top);
-void bdrv_delete(BlockDriverState *bs);
-int bdrv_parse_cache_flags(const char *mode, int *flags);
-int bdrv_file_open(BlockDriverState **pbs, const char *filename, int flags);
-int bdrv_open_backing_file(BlockDriverState *bs);
-int bdrv_open(BlockDriverState *bs, const char *filename, int flags,
- BlockDriver *drv);
-BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue *bs_queue,
- BlockDriverState *bs, int flags);
-int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp);
-int bdrv_reopen(BlockDriverState *bs, int bdrv_flags, Error **errp);
-int bdrv_reopen_prepare(BDRVReopenState *reopen_state,
- BlockReopenQueue *queue, Error **errp);
-void bdrv_reopen_commit(BDRVReopenState *reopen_state);
-void bdrv_reopen_abort(BDRVReopenState *reopen_state);
-void bdrv_close(BlockDriverState *bs);
-void bdrv_add_close_notifier(BlockDriverState *bs, Notifier *notify);
-int bdrv_attach_dev(BlockDriverState *bs, void *dev);
-void bdrv_attach_dev_nofail(BlockDriverState *bs, void *dev);
-void bdrv_detach_dev(BlockDriverState *bs, void *dev);
-void *bdrv_get_attached_dev(BlockDriverState *bs);
-void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops,
- void *opaque);
-void bdrv_dev_eject_request(BlockDriverState *bs, bool force);
-bool bdrv_dev_has_removable_media(BlockDriverState *bs);
-bool bdrv_dev_is_tray_open(BlockDriverState *bs);
-bool bdrv_dev_is_medium_locked(BlockDriverState *bs);
-int bdrv_read(BlockDriverState *bs, int64_t sector_num,
- uint8_t *buf, int nb_sectors);
-int bdrv_read_unthrottled(BlockDriverState *bs, int64_t sector_num,
- uint8_t *buf, int nb_sectors);
-int bdrv_write(BlockDriverState *bs, int64_t sector_num,
- const uint8_t *buf, int nb_sectors);
-int bdrv_pread(BlockDriverState *bs, int64_t offset,
- void *buf, int count);
-int bdrv_pwrite(BlockDriverState *bs, int64_t offset,
- const void *buf, int count);
-int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset,
- const void *buf, int count);
-int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num,
- int nb_sectors, QEMUIOVector *qiov);
-int coroutine_fn bdrv_co_copy_on_readv(BlockDriverState *bs,
- int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
-int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num,
- int nb_sectors, QEMUIOVector *qiov);
-/*
- * Efficiently zero a region of the disk image. Note that this is a regular
- * I/O request like read or write and should have a reasonable size. This
- * function is not suitable for zeroing the entire image in a single request
- * because it may allocate memory for the entire region.
- */
-int coroutine_fn bdrv_co_write_zeroes(BlockDriverState *bs, int64_t sector_num,
- int nb_sectors);
-int coroutine_fn bdrv_co_is_allocated(BlockDriverState *bs, int64_t sector_num,
- int nb_sectors, int *pnum);
-int coroutine_fn bdrv_co_is_allocated_above(BlockDriverState *top,
- BlockDriverState *base,
- int64_t sector_num,
- int nb_sectors, int *pnum);
-BlockDriverState *bdrv_find_backing_image(BlockDriverState *bs,
- const char *backing_file);
-int bdrv_get_backing_file_depth(BlockDriverState *bs);
-int bdrv_truncate(BlockDriverState *bs, int64_t offset);
-int64_t bdrv_getlength(BlockDriverState *bs);
-int64_t bdrv_get_allocated_file_size(BlockDriverState *bs);
-void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr);
-int bdrv_commit(BlockDriverState *bs);
-int bdrv_commit_all(void);
-int bdrv_change_backing_file(BlockDriverState *bs,
- const char *backing_file, const char *backing_fmt);
-void bdrv_register(BlockDriver *bdrv);
-int bdrv_drop_intermediate(BlockDriverState *active, BlockDriverState *top,
- BlockDriverState *base);
-BlockDriverState *bdrv_find_overlay(BlockDriverState *active,
- BlockDriverState *bs);
-BlockDriverState *bdrv_find_base(BlockDriverState *bs);
-
-
-typedef struct BdrvCheckResult {
- int corruptions;
- int leaks;
- int check_errors;
- int corruptions_fixed;
- int leaks_fixed;
- BlockFragInfo bfi;
-} BdrvCheckResult;
-
-typedef enum {
- BDRV_FIX_LEAKS = 1,
- BDRV_FIX_ERRORS = 2,
-} BdrvCheckMode;
-
-int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix);
-
-/* async block I/O */
-typedef void BlockDriverDirtyHandler(BlockDriverState *bs, int64_t sector,
- int sector_num);
-BlockDriverAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num,
- QEMUIOVector *iov, int nb_sectors,
- BlockDriverCompletionFunc *cb, void *opaque);
-BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num,
- QEMUIOVector *iov, int nb_sectors,
- BlockDriverCompletionFunc *cb, void *opaque);
-BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs,
- BlockDriverCompletionFunc *cb, void *opaque);
-BlockDriverAIOCB *bdrv_aio_discard(BlockDriverState *bs,
- int64_t sector_num, int nb_sectors,
- BlockDriverCompletionFunc *cb, void *opaque);
-void bdrv_aio_cancel(BlockDriverAIOCB *acb);
-
-typedef struct BlockRequest {
- /* Fields to be filled by multiwrite caller */
- int64_t sector;
- int nb_sectors;
- QEMUIOVector *qiov;
- BlockDriverCompletionFunc *cb;
- void *opaque;
-
- /* Filled by multiwrite implementation */
- int error;
-} BlockRequest;
-
-int bdrv_aio_multiwrite(BlockDriverState *bs, BlockRequest *reqs,
- int num_reqs);
-
-/* sg packet commands */
-int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf);
-BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs,
- unsigned long int req, void *buf,
- BlockDriverCompletionFunc *cb, void *opaque);
-
-/* Invalidate any cached metadata used by image formats */
-void bdrv_invalidate_cache(BlockDriverState *bs);
-void bdrv_invalidate_cache_all(void);
-
-void bdrv_clear_incoming_migration_all(void);
-
-/* Ensure contents are flushed to disk. */
-int bdrv_flush(BlockDriverState *bs);
-int coroutine_fn bdrv_co_flush(BlockDriverState *bs);
-void bdrv_flush_all(void);
-void bdrv_close_all(void);
-void bdrv_drain_all(void);
-
-int bdrv_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors);
-int bdrv_co_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors);
-int bdrv_has_zero_init(BlockDriverState *bs);
-int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
- int *pnum);
-
-void bdrv_set_on_error(BlockDriverState *bs, BlockdevOnError on_read_error,
- BlockdevOnError on_write_error);
-BlockdevOnError bdrv_get_on_error(BlockDriverState *bs, bool is_read);
-BlockErrorAction bdrv_get_error_action(BlockDriverState *bs, bool is_read, int error);
-void bdrv_error_action(BlockDriverState *bs, BlockErrorAction action,
- bool is_read, int error);
-int bdrv_is_read_only(BlockDriverState *bs);
-int bdrv_is_sg(BlockDriverState *bs);
-int bdrv_enable_write_cache(BlockDriverState *bs);
-void bdrv_set_enable_write_cache(BlockDriverState *bs, bool wce);
-int bdrv_is_inserted(BlockDriverState *bs);
-int bdrv_media_changed(BlockDriverState *bs);
-void bdrv_lock_medium(BlockDriverState *bs, bool locked);
-void bdrv_eject(BlockDriverState *bs, bool eject_flag);
-const char *bdrv_get_format_name(BlockDriverState *bs);
-BlockDriverState *bdrv_find(const char *name);
-BlockDriverState *bdrv_next(BlockDriverState *bs);
-void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs),
- void *opaque);
-int bdrv_is_encrypted(BlockDriverState *bs);
-int bdrv_key_required(BlockDriverState *bs);
-int bdrv_set_key(BlockDriverState *bs, const char *key);
-int bdrv_query_missing_keys(void);
-void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
- void *opaque);
-const char *bdrv_get_device_name(BlockDriverState *bs);
-int bdrv_get_flags(BlockDriverState *bs);
-int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,
- const uint8_t *buf, int nb_sectors);
-int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi);
-
-const char *bdrv_get_encrypted_filename(BlockDriverState *bs);
-void bdrv_get_backing_filename(BlockDriverState *bs,
- char *filename, int filename_size);
-void bdrv_get_full_backing_filename(BlockDriverState *bs,
- char *dest, size_t sz);
-BlockInfo *bdrv_query_info(BlockDriverState *s);
-BlockStats *bdrv_query_stats(const BlockDriverState *bs);
-int bdrv_can_snapshot(BlockDriverState *bs);
-int bdrv_is_snapshot(BlockDriverState *bs);
-BlockDriverState *bdrv_snapshots(void);
-int bdrv_snapshot_create(BlockDriverState *bs,
- QEMUSnapshotInfo *sn_info);
-int bdrv_snapshot_goto(BlockDriverState *bs,
- const char *snapshot_id);
-int bdrv_snapshot_delete(BlockDriverState *bs, const char *snapshot_id);
-int bdrv_snapshot_list(BlockDriverState *bs,
- QEMUSnapshotInfo **psn_info);
-int bdrv_snapshot_load_tmp(BlockDriverState *bs,
- const char *snapshot_name);
-char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn);
-
-char *get_human_readable_size(char *buf, int buf_size, int64_t size);
-int path_is_absolute(const char *path);
-void path_combine(char *dest, int dest_size,
- const char *base_path,
- const char *filename);
-
-int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf,
- int64_t pos, int size);
-
-int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
- int64_t pos, int size);
-
-void bdrv_img_create(const char *filename, const char *fmt,
- const char *base_filename, const char *base_fmt,
- char *options, uint64_t img_size, int flags, Error **errp);
-
-void bdrv_set_buffer_alignment(BlockDriverState *bs, int align);
-void *qemu_blockalign(BlockDriverState *bs, size_t size);
-
-#define BDRV_SECTORS_PER_DIRTY_CHUNK 2048
-
-void bdrv_set_dirty_tracking(BlockDriverState *bs, int enable);
-int bdrv_get_dirty(BlockDriverState *bs, int64_t sector);
-void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors);
-void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors);
-int64_t bdrv_get_next_dirty(BlockDriverState *bs, int64_t sector);
-int64_t bdrv_get_dirty_count(BlockDriverState *bs);
-
-void bdrv_enable_copy_on_read(BlockDriverState *bs);
-void bdrv_disable_copy_on_read(BlockDriverState *bs);
-
-void bdrv_set_in_use(BlockDriverState *bs, int in_use);
-int bdrv_in_use(BlockDriverState *bs);
-
-enum BlockAcctType {
- BDRV_ACCT_READ,
- BDRV_ACCT_WRITE,
- BDRV_ACCT_FLUSH,
- BDRV_MAX_IOTYPE,
-};
-
-typedef struct BlockAcctCookie {
- int64_t bytes;
- int64_t start_time_ns;
- enum BlockAcctType type;
-} BlockAcctCookie;
-
-void bdrv_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie,
- int64_t bytes, enum BlockAcctType type);
-void bdrv_acct_done(BlockDriverState *bs, BlockAcctCookie *cookie);
-
-typedef enum {
- BLKDBG_L1_UPDATE,
-
- BLKDBG_L1_GROW_ALLOC_TABLE,
- BLKDBG_L1_GROW_WRITE_TABLE,
- BLKDBG_L1_GROW_ACTIVATE_TABLE,
-
- BLKDBG_L2_LOAD,
- BLKDBG_L2_UPDATE,
- BLKDBG_L2_UPDATE_COMPRESSED,
- BLKDBG_L2_ALLOC_COW_READ,
- BLKDBG_L2_ALLOC_WRITE,
-
- BLKDBG_READ_AIO,
- BLKDBG_READ_BACKING_AIO,
- BLKDBG_READ_COMPRESSED,
-
- BLKDBG_WRITE_AIO,
- BLKDBG_WRITE_COMPRESSED,
-
- BLKDBG_VMSTATE_LOAD,
- BLKDBG_VMSTATE_SAVE,
-
- BLKDBG_COW_READ,
- BLKDBG_COW_WRITE,
-
- BLKDBG_REFTABLE_LOAD,
- BLKDBG_REFTABLE_GROW,
-
- BLKDBG_REFBLOCK_LOAD,
- BLKDBG_REFBLOCK_UPDATE,
- BLKDBG_REFBLOCK_UPDATE_PART,
- BLKDBG_REFBLOCK_ALLOC,
- BLKDBG_REFBLOCK_ALLOC_HOOKUP,
- BLKDBG_REFBLOCK_ALLOC_WRITE,
- BLKDBG_REFBLOCK_ALLOC_WRITE_BLOCKS,
- BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE,
- BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE,
-
- BLKDBG_CLUSTER_ALLOC,
- BLKDBG_CLUSTER_ALLOC_BYTES,
- BLKDBG_CLUSTER_FREE,
-
- BLKDBG_EVENT_MAX,
-} BlkDebugEvent;
-
-#define BLKDBG_EVENT(bs, evt) bdrv_debug_event(bs, evt)
-void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event);
-
-int bdrv_debug_breakpoint(BlockDriverState *bs, const char *event,
- const char *tag);
-int bdrv_debug_resume(BlockDriverState *bs, const char *tag);
-bool bdrv_debug_is_suspended(BlockDriverState *bs, const char *tag);
-
-#endif