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block: Split change_cb() into change_media_cb(), resize_cb()

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Multiplexing callbacks complicates matters needlessly.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2011-08-03 15:07:42 +02:00 • committed by Kevin Wolf
parent 0e49de5232
commit 145feb176f
6 changed files with 33 additions and 29 deletions
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12
block.h
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@ -28,8 +28,18 @@ typedef struct QEMUSnapshotInfo {
uint64_t vm_clock_nsec; /* VM clock relative to boot */
} QEMUSnapshotInfo;
/* Callbacks for block device models */
typedef struct BlockDevOps {
void (*change_cb)(void *opaque, int reason);
/*
* Runs when virtual media changed (monitor commands eject, change)
* Beware: doesn't run when a host device's physical media
* changes. Sure would be useful if it did.
*/
void (*change_media_cb)(void *opaque);
/*
* Runs when the size changed (e.g. monitor command block_resize)
*/
void (*resize_cb)(void *opaque);
} BlockDevOps;
#define BDRV_O_RDWR 0x0002