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Diffstat (limited to 'include/sysemu/block-backend-io.h')
-rw-r--r-- | include/sysemu/block-backend-io.h | 230 |
1 files changed, 0 insertions, 230 deletions
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h deleted file mode 100644 index d174275..0000000 --- a/include/sysemu/block-backend-io.h +++ /dev/null @@ -1,230 +0,0 @@ -/* - * QEMU Block backends - * - * Copyright (C) 2014-2016 Red Hat, Inc. - * - * Authors: - * Markus Armbruster <armbru@redhat.com>, - * - * This work is licensed under the terms of the GNU LGPL, version 2.1 - * or later. See the COPYING.LIB file in the top-level directory. - */ - -#ifndef BLOCK_BACKEND_IO_H -#define BLOCK_BACKEND_IO_H - -#include "block-backend-common.h" -#include "block/accounting.h" - -/* - * I/O API functions. These functions are thread-safe. - * - * See include/block/block-io.h for more information about - * the I/O API. - */ - -const char *blk_name(const BlockBackend *blk); - -BlockDriverState *blk_bs(BlockBackend *blk); - -void blk_set_allow_write_beyond_eof(BlockBackend *blk, bool allow); -void blk_set_allow_aio_context_change(BlockBackend *blk, bool allow); -void blk_set_disable_request_queuing(BlockBackend *blk, bool disable); -bool blk_iostatus_is_enabled(const BlockBackend *blk); - -char *blk_get_attached_dev_id(BlockBackend *blk); - -BlockAIOCB *blk_aio_pwrite_zeroes(BlockBackend *blk, int64_t offset, - int64_t bytes, BdrvRequestFlags flags, - BlockCompletionFunc *cb, void *opaque); - -BlockAIOCB *blk_aio_preadv(BlockBackend *blk, int64_t offset, - QEMUIOVector *qiov, BdrvRequestFlags flags, - BlockCompletionFunc *cb, void *opaque); -BlockAIOCB *blk_aio_pwritev(BlockBackend *blk, int64_t offset, - QEMUIOVector *qiov, BdrvRequestFlags flags, - BlockCompletionFunc *cb, void *opaque); -BlockAIOCB *blk_aio_flush(BlockBackend *blk, - BlockCompletionFunc *cb, void *opaque); -BlockAIOCB *blk_aio_zone_report(BlockBackend *blk, int64_t offset, - unsigned int *nr_zones, - BlockZoneDescriptor *zones, - BlockCompletionFunc *cb, void *opaque); -BlockAIOCB *blk_aio_zone_mgmt(BlockBackend *blk, BlockZoneOp op, - int64_t offset, int64_t len, - BlockCompletionFunc *cb, void *opaque); -BlockAIOCB *blk_aio_zone_append(BlockBackend *blk, int64_t *offset, - QEMUIOVector *qiov, BdrvRequestFlags flags, - BlockCompletionFunc *cb, void *opaque); -BlockAIOCB *blk_aio_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes, - BlockCompletionFunc *cb, void *opaque); -void blk_aio_cancel_async(BlockAIOCB *acb); -BlockAIOCB *blk_aio_ioctl(BlockBackend *blk, unsigned long int req, void *buf, - BlockCompletionFunc *cb, void *opaque); - -void blk_inc_in_flight(BlockBackend *blk); -void blk_dec_in_flight(BlockBackend *blk); - -bool coroutine_fn GRAPH_RDLOCK blk_co_is_inserted(BlockBackend *blk); -bool co_wrapper_mixed_bdrv_rdlock blk_is_inserted(BlockBackend *blk); - -bool coroutine_fn GRAPH_RDLOCK blk_co_is_available(BlockBackend *blk); -bool co_wrapper_mixed_bdrv_rdlock blk_is_available(BlockBackend *blk); - -void coroutine_fn blk_co_lock_medium(BlockBackend *blk, bool locked); -void co_wrapper blk_lock_medium(BlockBackend *blk, bool locked); - -void coroutine_fn blk_co_eject(BlockBackend *blk, bool eject_flag); -void co_wrapper blk_eject(BlockBackend *blk, bool eject_flag); - -int64_t coroutine_fn blk_co_getlength(BlockBackend *blk); -int64_t co_wrapper_mixed blk_getlength(BlockBackend *blk); - -void coroutine_fn blk_co_get_geometry(BlockBackend *blk, - uint64_t *nb_sectors_ptr); -void blk_get_geometry(BlockBackend *blk, uint64_t *nb_sectors_ptr); - -int64_t coroutine_fn blk_co_nb_sectors(BlockBackend *blk); -int64_t blk_nb_sectors(BlockBackend *blk); - -void *blk_try_blockalign(BlockBackend *blk, size_t size); -void *blk_blockalign(BlockBackend *blk, size_t size); -bool blk_is_writable(BlockBackend *blk); -bool blk_enable_write_cache(BlockBackend *blk); -BlockdevOnError blk_get_on_error(BlockBackend *blk, bool is_read); -BlockErrorAction blk_get_error_action(BlockBackend *blk, bool is_read, - int error); -void blk_error_action(BlockBackend *blk, BlockErrorAction action, - bool is_read, int error); -void blk_iostatus_set_err(BlockBackend *blk, int error); -int blk_get_max_iov(BlockBackend *blk); -int blk_get_max_hw_iov(BlockBackend *blk); - -AioContext *blk_get_aio_context(BlockBackend *blk); -BlockAcctStats *blk_get_stats(BlockBackend *blk); -void *blk_aio_get(const AIOCBInfo *aiocb_info, BlockBackend *blk, - BlockCompletionFunc *cb, void *opaque); -BlockAIOCB *blk_abort_aio_request(BlockBackend *blk, - BlockCompletionFunc *cb, - void *opaque, int ret); - -uint32_t blk_get_request_alignment(BlockBackend *blk); -uint32_t blk_get_max_transfer(BlockBackend *blk); -uint64_t blk_get_max_hw_transfer(BlockBackend *blk); - -int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in, - BlockBackend *blk_out, int64_t off_out, - int64_t bytes, BdrvRequestFlags read_flags, - BdrvRequestFlags write_flags); - -int coroutine_fn blk_co_block_status_above(BlockBackend *blk, - BlockDriverState *base, - int64_t offset, int64_t bytes, - int64_t *pnum, int64_t *map, - BlockDriverState **file); -int coroutine_fn blk_co_is_allocated_above(BlockBackend *blk, - BlockDriverState *base, - bool include_base, int64_t offset, - int64_t bytes, int64_t *pnum); - -/* - * "I/O or GS" API functions. These functions can run without - * the BQL, but only in one specific iothread/main loop. - * - * See include/block/block-io.h for more information about - * the "I/O or GS" API. - */ - -int co_wrapper_mixed blk_pread(BlockBackend *blk, int64_t offset, - int64_t bytes, void *buf, - BdrvRequestFlags flags); -int coroutine_fn blk_co_pread(BlockBackend *blk, int64_t offset, int64_t bytes, - void *buf, BdrvRequestFlags flags); - -int co_wrapper_mixed blk_preadv(BlockBackend *blk, int64_t offset, - int64_t bytes, QEMUIOVector *qiov, - BdrvRequestFlags flags); -int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset, - int64_t bytes, QEMUIOVector *qiov, - BdrvRequestFlags flags); - -int co_wrapper_mixed blk_preadv_part(BlockBackend *blk, int64_t offset, - int64_t bytes, QEMUIOVector *qiov, - size_t qiov_offset, - BdrvRequestFlags flags); -int coroutine_fn blk_co_preadv_part(BlockBackend *blk, int64_t offset, - int64_t bytes, QEMUIOVector *qiov, - size_t qiov_offset, BdrvRequestFlags flags); - -int co_wrapper_mixed blk_pwrite(BlockBackend *blk, int64_t offset, - int64_t bytes, const void *buf, - BdrvRequestFlags flags); -int coroutine_fn blk_co_pwrite(BlockBackend *blk, int64_t offset, int64_t bytes, - const void *buf, BdrvRequestFlags flags); - -int co_wrapper_mixed blk_pwritev(BlockBackend *blk, int64_t offset, - int64_t bytes, QEMUIOVector *qiov, - BdrvRequestFlags flags); -int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset, - int64_t bytes, QEMUIOVector *qiov, - BdrvRequestFlags flags); - -int co_wrapper_mixed blk_pwritev_part(BlockBackend *blk, int64_t offset, - int64_t bytes, QEMUIOVector *qiov, - size_t qiov_offset, - BdrvRequestFlags flags); -int coroutine_fn blk_co_pwritev_part(BlockBackend *blk, int64_t offset, - int64_t bytes, - QEMUIOVector *qiov, size_t qiov_offset, - BdrvRequestFlags flags); - -int co_wrapper_mixed blk_pwrite_compressed(BlockBackend *blk, - int64_t offset, int64_t bytes, - const void *buf); -int coroutine_fn blk_co_pwrite_compressed(BlockBackend *blk, int64_t offset, - int64_t bytes, const void *buf); - -int co_wrapper_mixed blk_pwrite_zeroes(BlockBackend *blk, int64_t offset, - int64_t bytes, - BdrvRequestFlags flags); -int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset, - int64_t bytes, BdrvRequestFlags flags); - -int coroutine_fn blk_co_zone_report(BlockBackend *blk, int64_t offset, - unsigned int *nr_zones, - BlockZoneDescriptor *zones); -int co_wrapper_mixed blk_zone_report(BlockBackend *blk, int64_t offset, - unsigned int *nr_zones, - BlockZoneDescriptor *zones); -int coroutine_fn blk_co_zone_mgmt(BlockBackend *blk, BlockZoneOp op, - int64_t offset, int64_t len); -int co_wrapper_mixed blk_zone_mgmt(BlockBackend *blk, BlockZoneOp op, - int64_t offset, int64_t len); -int coroutine_fn blk_co_zone_append(BlockBackend *blk, int64_t *offset, - QEMUIOVector *qiov, - BdrvRequestFlags flags); -int co_wrapper_mixed blk_zone_append(BlockBackend *blk, int64_t *offset, - QEMUIOVector *qiov, - BdrvRequestFlags flags); - -int co_wrapper_mixed blk_pdiscard(BlockBackend *blk, int64_t offset, - int64_t bytes); -int coroutine_fn blk_co_pdiscard(BlockBackend *blk, int64_t offset, - int64_t bytes); - -int co_wrapper_mixed blk_flush(BlockBackend *blk); -int coroutine_fn blk_co_flush(BlockBackend *blk); - -int co_wrapper_mixed blk_ioctl(BlockBackend *blk, unsigned long int req, - void *buf); -int coroutine_fn blk_co_ioctl(BlockBackend *blk, unsigned long int req, - void *buf); - -int co_wrapper_mixed blk_truncate(BlockBackend *blk, int64_t offset, - bool exact, PreallocMode prealloc, - BdrvRequestFlags flags, Error **errp); -int coroutine_fn blk_co_truncate(BlockBackend *blk, int64_t offset, bool exact, - PreallocMode prealloc, BdrvRequestFlags flags, - Error **errp); - -#endif /* BLOCK_BACKEND_IO_H */ |