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Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type FeatOpt ¶
type FeatOpt func(*featCfg)
FeatOpt is used to configure failure feature.
func WithIntervalFeatOpt ¶
WithIntervalFeatOpt updates the up time for the feature.
func WithSyncFSFeatOpt ¶
WithSyncFSFeatOpt is to determine if the caller wants to synchronize filesystem before inject failure.
type Flakey ¶
type Flakey interface {
// DevicePath returns the flakey device path.
DevicePath() string
// Filesystem returns filesystem's type.
Filesystem() FSType
// AllowWrites allows write I/O.
AllowWrites(opts ...FeatOpt) error
// DropWrites drops all write I/O silently.
DropWrites(opts ...FeatOpt) error
// ErrorWrites drops all write I/O and returns error.
ErrorWrites(opts ...FeatOpt) error
// Teardown releases the flakey device.
Teardown() error
}
Flakey is to inject failure into device.
func InitFlakey ¶
func InitFlakey(flakeyDevice, dataStorePath string, fsType FSType, mkfsOpt string) (_ Flakey, retErr error)
InitFlakey creates an filesystem on a loopback device and returns Flakey on it.
The device-mapper device will be /dev/mapper/$flakeyDevice. And the filesystem image will be created at $dataStorePath/$flakeyDevice.img. By default, the device is available for 2 minutes and size is 10 GiB.
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