class DbLockPostgres extends DbLock

A Postgres DB lock using advisory locks

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  1. DbLockPostgres
  2. DbLock
  3. FlagCloseable
  4. AutoCloseable
  5. NamedLogging
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Visibility
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Type Members

  1. case class ReaderState(count: Int, readers: MultiSet[String]) extends Product with Serializable
    Definition Classes
    FlagCloseable

Value Members

  1. object ReaderState extends Serializable
    Definition Classes
    FlagCloseable
  2. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  3. final def ##: Int
    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  5. def acquire()(implicit traceContext: TraceContext): EitherT[Future, DbLockError, Unit]

    A blocking acquisition of the lock.

    A blocking acquisition of the lock.

    Blocks until the lock has been acquired. A lock can only be acquired and attempted to be acquired once. A second attempt will fail even when the first attempt is still pending acquisition of the lock.

    Definition Classes
    DbLock
  6. def acquireInternal()(implicit traceContext: TraceContext): EitherT[Future, DbLockError, Unit]

    Internal (DB specific) blocking acquisition of the lock.

    Internal (DB specific) blocking acquisition of the lock.

    Definition Classes
    DbLockPostgresDbLock
  7. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  8. val clock: Clock
    Attributes
    protected
    Definition Classes
    DbLockPostgresDbLock
  9. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
  10. final def close(): Unit

    Blocks until all earlier tasks have completed and then prevents further tasks from being run.

    Blocks until all earlier tasks have completed and then prevents further tasks from being run.

    Definition Classes
    FlagCloseable → AutoCloseable
    Annotations
    @SuppressWarnings()
  11. def closingTimeout: FiniteDuration
    Attributes
    protected
    Definition Classes
    FlagCloseable
  12. val config: DbLockConfig
    Attributes
    protected
    Definition Classes
    DbLockPostgresDbLock
  13. val database: slick.jdbc.JdbcBackend.Database
    Attributes
    protected
    Definition Classes
    DbLockPostgresDbLock
  14. implicit val ec: ExecutionContext
    Attributes
    protected
    Definition Classes
    DbLockPostgresDbLock
  15. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  16. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  17. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  18. def hasLock: EitherT[Future, DbLockError, Boolean]

    Check if the lock is still held by this session.

    Check if the lock is still held by this session.

    Attributes
    protected[resource]
    Definition Classes
    DbLockPostgresDbLock
  19. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  20. def internalPerformUnlessClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): UnlessShutdown[Future[A]]
    Attributes
    protected
    Definition Classes
    FlagCloseable
  21. def isAcquired: Boolean
    Definition Classes
    DbLock
  22. def isClosing: Boolean

    Check whether we're closing.

    Check whether we're closing. Susceptible to race conditions; unless you're using using this as a flag to the retry lib or you really know what you're doing, prefer performUnlessClosing and friends.

    Definition Classes
    FlagCloseable
  23. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  24. def isLost: Boolean
    Definition Classes
    DbLock
  25. def isTaken(implicit traceContext: TraceContext): EitherT[Future, DbLockError, Boolean]

    Returns true if the lock is already taken by another session

    Returns true if the lock is already taken by another session

    Definition Classes
    DbLockPostgresDbLock
  26. def keepTrackOfOpenFutures: Boolean

    track running futures on shutdown

    track running futures on shutdown

    set to true to get detailed information about all futures that did not complete during shutdown. if set to false, we don't do anything.

    Attributes
    protected
    Definition Classes
    FlagCloseable
  27. val lockId: DbLockId

    The application-specific lock ID, which remains the same for the lifetime of the lock.

    The application-specific lock ID, which remains the same for the lifetime of the lock.

    Definition Classes
    DbLockPostgresDbLock
  28. def logger: TracedLogger
    Attributes
    protected
    Definition Classes
    NamedLogging
  29. val loggerFactory: NamedLoggerFactory
    Attributes
    protected
    Definition Classes
    DbLockPostgresNamedLogging
  30. implicit def loggingContext(implicit traceContext: TraceContext): ErrorLoggingContext
    Attributes
    protected
    Definition Classes
    NamedLogging
  31. def maxSleepMillis: Long
    Attributes
    protected
    Definition Classes
    FlagCloseable
  32. val mode: DbLockMode
    Attributes
    protected
    Definition Classes
    DbLockPostgresDbLock
  33. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  34. def noTracingLogger: Logger
    Attributes
    protected
    Definition Classes
    NamedLogging
  35. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  36. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  37. def onClosed(): Unit
    Attributes
    protected
    Definition Classes
    FlagCloseable
  38. def performUnlessClosing[A](name: String)(f: => A)(implicit traceContext: TraceContext): UnlessShutdown[A]

    Performs the task given by f unless a shutdown has been initiated.

    Performs the task given by f unless a shutdown has been initiated. The shutdown will only begin after f completes, but other tasks may execute concurrently with f, if started using this function, or one of the other variants (performUnlessClosingF and performUnlessClosingEitherT). The tasks are assumed to take less than closingTimeout to complete.

    DO NOT CALL this.close as part of f, because it will result in a deadlock.

    f

    The task to perform

    returns

    scala.None$ if a shutdown has been initiated. Otherwise the result of the task.

    Definition Classes
    FlagCloseable
  39. def performUnlessClosingEitherT[E, R](name: String, onClosing: => E)(etf: => EitherT[Future, E, R])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[Future, E, R]

    Performs the EitherT[Future] given by etf unless a shutdown has been initiated, in which case the provided error is returned instead.

    Performs the EitherT[Future] given by etf unless a shutdown has been initiated, in which case the provided error is returned instead. Both etf and the error are lazy; etf is only evaluated if there is no shutdown, the error only if we're shutting down. The shutdown will only begin after etf completes, but other tasks may execute concurrently with etf, if started using this function, or one of the other variants (performUnlessClosing and performUnlessClosingF). The tasks are assumed to take less than closingTimeout to complete.

    DO NOT CALL this.close as part of etf, because it will result in a deadlock.

    etf

    The task to perform

    Definition Classes
    FlagCloseable
  40. def performUnlessClosingEitherTF[E, R](name: String, onClosing: => E)(etf: => EitherT[Future, E, Future[R]])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[Future, E, Future[R]]
    Definition Classes
    FlagCloseable
  41. def performUnlessClosingEitherU[E, R](name: String)(etf: => EitherT[Future, E, R])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[FutureUnlessShutdown, E, R]
    Definition Classes
    FlagCloseable
  42. def performUnlessClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): FutureUnlessShutdown[A]

    Performs the Future given by f unless a shutdown has been initiated.

    Performs the Future given by f unless a shutdown has been initiated. The future is lazy and not evaluated during shutdown. The shutdown will only begin after f completes, but other tasks may execute concurrently with f, if started using this function, or one of the other variants (performUnlessClosing and performUnlessClosingEitherT). The tasks are assumed to take less than closingTimeout to complete.

    DO NOT CALL this.close as part of f, because it will result in a deadlock.

    f

    The task to perform

    returns

    The future completes with com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if a shutdown has been initiated. Otherwise the result of the task wrapped in com.digitalasset.canton.lifecycle.UnlessShutdown.Outcome.

    Definition Classes
    FlagCloseable
  43. val profile: Postgres
    Attributes
    protected
    Definition Classes
    DbLockPostgresDbLock
  44. def release()(implicit traceContext: TraceContext): EitherT[Future, DbLockError, Unit]

    Explicitly release the lock.

    Explicitly release the lock.

    Definition Classes
    DbLock
  45. def releaseInternal()(implicit traceContext: TraceContext): EitherT[Future, DbLockError, Unit]

    Internal (DB specific) release of the lock.

    Internal (DB specific) release of the lock.

    Definition Classes
    DbLockPostgresDbLock
  46. def runOnShutdown[T](task: RunOnShutdown)(implicit traceContext: TraceContext): Unit

    Register a task that will run onClose after all "performUnlessShutdown" tasks have finished

    Register a task that will run onClose after all "performUnlessShutdown" tasks have finished

    Definition Classes
    FlagCloseable
  47. def runStateChanged(waitingState: Boolean = false): Unit
    Attributes
    protected
    Definition Classes
    FlagCloseable
    Annotations
    @VisibleForTesting()
  48. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  49. val timeouts: ProcessingTimeout
    Attributes
    protected
    Definition Classes
    DbLockPostgresDbLockFlagCloseable
  50. def toString(): String
    Definition Classes
    AnyRef → Any
  51. def tryAcquire()(implicit traceContext: TraceContext): EitherT[Future, DbLockError, Boolean]

    A non-blocking acquisition of the lock.

    A non-blocking acquisition of the lock.

    Tries to acquire the lock and immediately returns true or false if the lock was acquired or not. A lock can only be acquired and attempted to be acquired once.

    Definition Classes
    DbLock
  52. def tryAcquireInternal()(implicit traceContext: TraceContext): EitherT[Future, DbLockError, Boolean]

    Internal (DB specific) non-blocking acquisition of the lock.

    Internal (DB specific) non-blocking acquisition of the lock.

    Definition Classes
    DbLockPostgresDbLock
  53. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  54. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  55. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated

Inherited from DbLock

Inherited from FlagCloseable

Inherited from AutoCloseable

Inherited from NamedLogging

Inherited from AnyRef

Inherited from Any

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