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| author | Paolo Bonzini <pbonzini@redhat.com> | 2012-09-28 17:22:50 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2012-09-28 19:14:32 +0200 |
| commit | 8acc72a4d20910d522516dab31272fe66da8da28 (patch) | |
| tree | 4d521649f4d3a32eb74cf021ea12cfc1fc763e8f /qerror.h | |
| parent | 8d65883fff22e00d70f5880a26b7a1248c59a2d8 (diff) | |
| download | qemu-8acc72a4d20910d522516dab31272fe66da8da28.tar.gz | |
block: add support for job pause/resume
Job pausing reuses the existing support for cancellable sleeps. A pause
happens at the next sleeping point and lasts until the coroutine is
re-entered explicitly. Cancellation was already doing a forced resume,
so implement it explicitly in terms of resume.
Paused jobs cannot be canceled without first resuming them. This ensures
that I/O errors are never missed by management.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qerror.h')
| -rw-r--r-- | qerror.h | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -51,6 +51,9 @@ void assert_no_error(Error *err); #define QERR_BLOCK_JOB_NOT_ACTIVE \ ERROR_CLASS_DEVICE_NOT_ACTIVE, "No active block job on device '%s'" +#define QERR_BLOCK_JOB_PAUSED \ + ERROR_CLASS_GENERIC_ERROR, "The block job for device '%s' is currently paused" + #define QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED \ ERROR_CLASS_GENERIC_ERROR, "Block format '%s' used by device '%s' does not support feature '%s'" |