    {-# LANGUAGE TypeApplications #-}

    -- | Copyright  : Will Thompson, Iñaki García Etxebarria and Jonas Platte
    -- License    : LGPL-2.1
    -- Maintainer : Iñaki García Etxebarria
    --
    -- Represents a precise time, with seconds and microseconds.
    -- Similar to the struct timeval returned by the @/gettimeofday()/@
    -- UNIX system call.
    --
    -- GLib is attempting to unify around the use of 64-bit integers to
    -- represent microsecond-precision time. As such, this type will be
    -- removed from a future version of GLib. A consequence of using @glong@ for
    -- @tv_sec@ is that on 32-bit systems @GTimeVal@ is subject to the year 2038
    -- problem.

    #if !defined(__HADDOCK_VERSION__)
    #define ENABLE_OVERLOADING
    #endif

    module GI.GLib.Structs.TimeVal
        (

    -- * Exported types
        TimeVal(..)                             ,
        newZeroTimeVal                          ,

     -- * Methods
    -- ** Overloaded methods #method:Overloaded methods#

    #if defined(ENABLE_OVERLOADING)
        ResolveTimeValMethod                    ,
    #endif

    -- ** add #method:add#

    #if defined(ENABLE_OVERLOADING)
        TimeValAddMethodInfo                    ,
    #endif
        timeValAdd                              ,

    -- ** fromIso8601 #method:fromIso8601#

        timeValFromIso8601                      ,

    -- ** toIso8601 #method:toIso8601#

    #if defined(ENABLE_OVERLOADING)
        TimeValToIso8601MethodInfo              ,
    #endif
        timeValToIso8601                        ,

     -- * Properties
    -- ** tvSec #attr:tvSec#
    -- | seconds

        getTimeValTvSec                         ,
        setTimeValTvSec                         ,
    #if defined(ENABLE_OVERLOADING)
        timeVal_tvSec                           ,
    #endif

    -- ** tvUsec #attr:tvUsec#
    -- | microseconds

        getTimeValTvUsec                        ,
        setTimeValTvUsec                        ,
    #if defined(ENABLE_OVERLOADING)
        timeVal_tvUsec                          ,
    #endif

        ) where

    import Data.GI.Base.ShortPrelude
    import qualified Data.GI.Base.ShortPrelude as SP
    import qualified Data.GI.Base.Overloading as O
    import qualified Prelude as P

    import qualified Data.GI.Base.Attributes as GI.Attributes
    import qualified Data.GI.Base.BasicTypes as B.Types
    import qualified Data.GI.Base.ManagedPtr as B.ManagedPtr
    import qualified Data.GI.Base.GArray as B.GArray
    import qualified Data.GI.Base.GClosure as B.GClosure
    import qualified Data.GI.Base.GError as B.GError
    import qualified Data.GI.Base.GVariant as B.GVariant
    import qualified Data.GI.Base.GValue as B.GValue
    import qualified Data.GI.Base.GParamSpec as B.GParamSpec
    import qualified Data.GI.Base.CallStack as B.CallStack
    import qualified Data.GI.Base.Properties as B.Properties
    import qualified Data.GI.Base.Signals as B.Signals
    import qualified Control.Monad.IO.Class as MIO
    import qualified Data.Text as T
    import qualified Data.ByteString.Char8 as B
    import qualified Data.Map as Map
    import qualified Foreign.Ptr as FP
    import qualified GHC.OverloadedLabels as OL

    -- | Memory-managed wrapper type.
    newtype TimeVal = TimeVal (SP.ManagedPtr TimeVal)
        deriving (TimeVal -> TimeVal -> Bool
    (TimeVal -> TimeVal -> Bool)
    -> (TimeVal -> TimeVal -> Bool) -> Eq TimeVal
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    /= :: TimeVal -> TimeVal -> Bool
    $c/= :: TimeVal -> TimeVal -> Bool
    == :: TimeVal -> TimeVal -> Bool
    $c== :: TimeVal -> TimeVal -> Bool
    Eq)

    instance SP.ManagedPtrNewtype TimeVal where
        toManagedPtr :: TimeVal -> ManagedPtr TimeVal
    toManagedPtr (TimeVal p :: ManagedPtr TimeVal
    p) = ManagedPtr TimeVal
    p

    instance BoxedPtr TimeVal where
        boxedPtrCopy :: TimeVal -> IO TimeVal
    boxedPtrCopy = \p :: TimeVal
    p -> TimeVal -> (Ptr TimeVal -> IO TimeVal) -> IO TimeVal
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    B.ManagedPtr.withManagedPtr TimeVal
    p (Int -> Ptr TimeVal -> IO (Ptr TimeVal)
    forall a. (HasCallStack, CallocPtr a) => Int -> Ptr a -> IO (Ptr a)
    copyBytes 16 (Ptr TimeVal -> IO (Ptr TimeVal))
    -> (Ptr TimeVal -> IO TimeVal) -> Ptr TimeVal -> IO TimeVal
    forall (m :: * -> *) a b c.
    Monad m =>
    (a -> m b) -> (b -> m c) -> a -> m c
    >=> (ManagedPtr TimeVal -> TimeVal) -> Ptr TimeVal -> IO TimeVal
    forall a.
    (HasCallStack, BoxedPtr a) =>
    (ManagedPtr a -> a) -> Ptr a -> IO a
    B.ManagedPtr.wrapPtr ManagedPtr TimeVal -> TimeVal
    TimeVal)
        boxedPtrFree :: TimeVal -> IO ()
    boxedPtrFree = \x :: TimeVal
    x -> TimeVal -> (Ptr TimeVal -> IO ()) -> IO ()
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    SP.withManagedPtr TimeVal
    x Ptr TimeVal -> IO ()
    forall a. Ptr a -> IO ()
    SP.freeMem
    instance CallocPtr TimeVal where
        boxedPtrCalloc :: IO (Ptr TimeVal)
    boxedPtrCalloc = Int -> IO (Ptr TimeVal)
    forall a. Int -> IO (Ptr a)
    callocBytes 16

    -- | Construct a `TimeVal` struct initialized to zero.
    newZeroTimeVal :: MonadIO m => m TimeVal
    newZeroTimeVal :: m TimeVal
    newZeroTimeVal = IO TimeVal -> m TimeVal
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO TimeVal -> m TimeVal) -> IO TimeVal -> m TimeVal
    forall a b. (a -> b) -> a -> b
    $ IO (Ptr TimeVal)
    forall a. CallocPtr a => IO (Ptr a)
    boxedPtrCalloc IO (Ptr TimeVal) -> (Ptr TimeVal -> IO TimeVal) -> IO TimeVal
    forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
    >>= (ManagedPtr TimeVal -> TimeVal) -> Ptr TimeVal -> IO TimeVal
    forall a.
    (HasCallStack, BoxedPtr a) =>
    (ManagedPtr a -> a) -> Ptr a -> IO a
    wrapPtr ManagedPtr TimeVal -> TimeVal
    TimeVal

    instance tag ~ 'AttrSet => Constructible TimeVal tag where
        new :: (ManagedPtr TimeVal -> TimeVal)
    -> [AttrOp TimeVal tag] -> m TimeVal
    new _ attrs :: [AttrOp TimeVal tag]
    attrs = do
            TimeVal
    o <- m TimeVal
    forall (m :: * -> *). MonadIO m => m TimeVal
    newZeroTimeVal
            TimeVal -> [AttrOp TimeVal 'AttrSet] -> m ()
    forall o (m :: * -> *).
    MonadIO m =>
    o -> [AttrOp o 'AttrSet] -> m ()
    GI.Attributes.set TimeVal
    o [AttrOp TimeVal tag]
    [AttrOp TimeVal 'AttrSet]
    attrs
            TimeVal -> m TimeVal
    forall (m :: * -> *) a. Monad m => a -> m a
    return TimeVal
    o

    -- | Get the value of the “@tv_sec@” field.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' timeVal #tvSec
    -- @
    getTimeValTvSec :: MonadIO m => TimeVal -> m CLong
    getTimeValTvSec :: TimeVal -> m CLong
    getTimeValTvSec s :: TimeVal
    s = IO CLong -> m CLong
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO CLong -> m CLong) -> IO CLong -> m CLong
    forall a b. (a -> b) -> a -> b
    $ TimeVal -> (Ptr TimeVal -> IO CLong) -> IO CLong
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    withManagedPtr TimeVal
    s ((Ptr TimeVal -> IO CLong) -> IO CLong)
    -> (Ptr TimeVal -> IO CLong) -> IO CLong
    forall a b. (a -> b) -> a -> b
    $ \ptr :: Ptr TimeVal
    ptr -> do
        CLong
    val <- Ptr CLong -> IO CLong
    forall a. Storable a => Ptr a -> IO a
    peek (Ptr TimeVal
    ptr Ptr TimeVal -> Int -> Ptr CLong
    forall a b. Ptr a -> Int -> Ptr b
    `plusPtr` 0) :: IO CLong
        CLong -> IO CLong
    forall (m :: * -> *) a. Monad m => a -> m a
    return CLong
    val

    -- | Set the value of the “@tv_sec@” field.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.set' timeVal [ #tvSec 'Data.GI.Base.Attributes.:=' value ]
    -- @
    setTimeValTvSec :: MonadIO m => TimeVal -> CLong -> m ()
    setTimeValTvSec :: TimeVal -> CLong -> m ()
    setTimeValTvSec s :: TimeVal
    s val :: CLong
    val = IO () -> m ()
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ TimeVal -> (Ptr TimeVal -> IO ()) -> IO ()
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    withManagedPtr TimeVal
    s ((Ptr TimeVal -> IO ()) -> IO ())
    -> (Ptr TimeVal -> IO ()) -> IO ()
    forall a b. (a -> b) -> a -> b
    $ \ptr :: Ptr TimeVal
    ptr -> do
        Ptr CLong -> CLong -> IO ()
    forall a. Storable a => Ptr a -> a -> IO ()
    poke (Ptr TimeVal
    ptr Ptr TimeVal -> Int -> Ptr CLong
    forall a b. Ptr a -> Int -> Ptr b
    `plusPtr` 0) (CLong
    val :: CLong)

    #if defined(ENABLE_OVERLOADING)
    data TimeValTvSecFieldInfo
    instance AttrInfo TimeValTvSecFieldInfo where
        type AttrBaseTypeConstraint TimeValTvSecFieldInfo = (~) TimeVal
        type AttrAllowedOps TimeValTvSecFieldInfo = '[ 'AttrSet, 'AttrGet]
        type AttrSetTypeConstraint TimeValTvSecFieldInfo = (~) CLong
        type AttrTransferTypeConstraint TimeValTvSecFieldInfo = (~)CLong
        type AttrTransferType TimeValTvSecFieldInfo = CLong
        type AttrGetType TimeValTvSecFieldInfo = CLong
        type AttrLabel TimeValTvSecFieldInfo = "tv_sec"
        type AttrOrigin TimeValTvSecFieldInfo = TimeVal
        attrGet = getTimeValTvSec
        attrSet = setTimeValTvSec
        attrConstruct = undefined
        attrClear = undefined
        attrTransfer _ v = do
            return v

    timeVal_tvSec :: AttrLabelProxy "tvSec"
    timeVal_tvSec = AttrLabelProxy

    #endif

    -- | Get the value of the “@tv_usec@” field.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' timeVal #tvUsec
    -- @
    getTimeValTvUsec :: MonadIO m => TimeVal -> m CLong
    getTimeValTvUsec :: TimeVal -> m CLong
    getTimeValTvUsec s :: TimeVal
    s = IO CLong -> m CLong
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO CLong -> m CLong) -> IO CLong -> m CLong
    forall a b. (a -> b) -> a -> b
    $ TimeVal -> (Ptr TimeVal -> IO CLong) -> IO CLong
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    withManagedPtr TimeVal
    s ((Ptr TimeVal -> IO CLong) -> IO CLong)
    -> (Ptr TimeVal -> IO CLong) -> IO CLong
    forall a b. (a -> b) -> a -> b
    $ \ptr :: Ptr TimeVal
    ptr -> do
        CLong
    val <- Ptr CLong -> IO CLong
    forall a. Storable a => Ptr a -> IO a
    peek (Ptr TimeVal
    ptr Ptr TimeVal -> Int -> Ptr CLong
    forall a b. Ptr a -> Int -> Ptr b
    `plusPtr` 8) :: IO CLong
        CLong -> IO CLong
    forall (m :: * -> *) a. Monad m => a -> m a
    return CLong
    val

    -- | Set the value of the “@tv_usec@” field.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.set' timeVal [ #tvUsec 'Data.GI.Base.Attributes.:=' value ]
    -- @
    setTimeValTvUsec :: MonadIO m => TimeVal -> CLong -> m ()
    setTimeValTvUsec :: TimeVal -> CLong -> m ()
    setTimeValTvUsec s :: TimeVal
    s val :: CLong
    val = IO () -> m ()
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ TimeVal -> (Ptr TimeVal -> IO ()) -> IO ()
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    withManagedPtr TimeVal
    s ((Ptr TimeVal -> IO ()) -> IO ())
    -> (Ptr TimeVal -> IO ()) -> IO ()
    forall a b. (a -> b) -> a -> b
    $ \ptr :: Ptr TimeVal
    ptr -> do
        Ptr CLong -> CLong -> IO ()
    forall a. Storable a => Ptr a -> a -> IO ()
    poke (Ptr TimeVal
    ptr Ptr TimeVal -> Int -> Ptr CLong
    forall a b. Ptr a -> Int -> Ptr b
    `plusPtr` 8) (CLong
    val :: CLong)

    #if defined(ENABLE_OVERLOADING)
    data TimeValTvUsecFieldInfo
    instance AttrInfo TimeValTvUsecFieldInfo where
        type AttrBaseTypeConstraint TimeValTvUsecFieldInfo = (~) TimeVal
        type AttrAllowedOps TimeValTvUsecFieldInfo = '[ 'AttrSet, 'AttrGet]
        type AttrSetTypeConstraint TimeValTvUsecFieldInfo = (~) CLong
        type AttrTransferTypeConstraint TimeValTvUsecFieldInfo = (~)CLong
        type AttrTransferType TimeValTvUsecFieldInfo = CLong
        type AttrGetType TimeValTvUsecFieldInfo = CLong
        type AttrLabel TimeValTvUsecFieldInfo = "tv_usec"
        type AttrOrigin TimeValTvUsecFieldInfo = TimeVal
        attrGet = getTimeValTvUsec
        attrSet = setTimeValTvUsec
        attrConstruct = undefined
        attrClear = undefined
        attrTransfer _ v = do
            return v

    timeVal_tvUsec :: AttrLabelProxy "tvUsec"
    timeVal_tvUsec = AttrLabelProxy

    #endif

    #if defined(ENABLE_OVERLOADING)
    instance O.HasAttributeList TimeVal
    type instance O.AttributeList TimeVal = TimeValAttributeList
    type TimeValAttributeList = ('[ '("tvSec", TimeValTvSecFieldInfo), '("tvUsec", TimeValTvUsecFieldInfo)] :: [(Symbol, *)])
    #endif

    -- method TimeVal::add
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "time_"
    --           , argType =
    --               TInterface Name { namespace = "GLib" , name = "TimeVal" }
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a #GTimeVal" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "microseconds"
    --           , argType = TBasicType TLong
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "number of microseconds to add to @time"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Nothing
    -- throws : False
    -- Skip return : False

    foreign import ccall "g_time_val_add" g_time_val_add ::
        Ptr TimeVal ->                          -- time_ : TInterface (Name {namespace = "GLib", name = "TimeVal"})
        CLong ->                                -- microseconds : TBasicType TLong
        IO ()

    {-# DEPRECATED timeValAdd ["(Since version 2.62)","t'GI.GLib.Structs.TimeVal.TimeVal' is not year-2038-safe. Use @guint64@ for","   representing microseconds since the epoch, or use t'GI.GLib.Structs.DateTime.DateTime'."] #-}
    -- | Adds the given number of microseconds to /@time_@/. /@microseconds@/ can
    -- also be negative to decrease the value of /@time_@/.
    timeValAdd ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        TimeVal
        -- ^ /@time_@/: a t'GI.GLib.Structs.TimeVal.TimeVal'
        -> CLong
        -- ^ /@microseconds@/: number of microseconds to add to /@time@/
        -> m ()
    timeValAdd :: TimeVal -> CLong -> m ()
    timeValAdd time_ :: TimeVal
    time_ microseconds :: CLong
    microseconds = IO () -> m ()
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        Ptr TimeVal
    time_' <- TimeVal -> IO (Ptr TimeVal)
    forall a. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr a)
    unsafeManagedPtrGetPtr TimeVal
    time_
        Ptr TimeVal -> CLong -> IO ()
    g_time_val_add Ptr TimeVal
    time_' CLong
    microseconds
        TimeVal -> IO ()
    forall a. ManagedPtrNewtype a => a -> IO ()
    touchManagedPtr TimeVal
    time_
        () -> IO ()
    forall (m :: * -> *) a. Monad m => a -> m a
    return ()

    #if defined(ENABLE_OVERLOADING)
    data TimeValAddMethodInfo
    instance (signature ~ (CLong -> m ()), MonadIO m) => O.MethodInfo TimeValAddMethodInfo TimeVal signature where
        overloadedMethod = timeValAdd

    #endif

    -- method TimeVal::to_iso8601
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "time_"
    --           , argType =
    --               TInterface Name { namespace = "GLib" , name = "TimeVal" }
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a #GTimeVal" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TBasicType TUTF8)
    -- throws : False
    -- Skip return : False

    foreign import ccall "g_time_val_to_iso8601" g_time_val_to_iso8601 ::
        Ptr TimeVal ->                          -- time_ : TInterface (Name {namespace = "GLib", name = "TimeVal"})
        IO CString

    {-# DEPRECATED timeValToIso8601 ["(Since version 2.62)","t'GI.GLib.Structs.TimeVal.TimeVal' is not year-2038-safe. Use","   g_date_time_format_iso8601(dt) instead."] #-}
    -- | Converts /@time_@/ into an RFC 3339 encoded string, relative to the
    -- Coordinated Universal Time (UTC). This is one of the many formats
    -- allowed by ISO 8601.
    --
    -- ISO 8601 allows a large number of date\/time formats, with or without
    -- punctuation and optional elements. The format returned by this function
    -- is a complete date and time, with optional punctuation included, the
    -- UTC time zone represented as \"Z\", and the /@tvUsec@/ part included if
    -- and only if it is nonzero, i.e. either
    -- \"YYYY-MM-DDTHH:MM:SSZ\" or \"YYYY-MM-DDTHH:MM:SS.fffffZ\".
    --
    -- This corresponds to the Internet date\/time format defined by
    -- <https://www.ietf.org/rfc/rfc3339.txt RFC 3339>,
    -- and to either of the two most-precise formats defined by
    -- the W3C Note
    -- <http://www.w3.org/TR/NOTE-datetime-19980827 Date and Time Formats>.
    -- Both of these documents are profiles of ISO 8601.
    --
    -- Use 'GI.GLib.Structs.DateTime.dateTimeFormat' or @/g_strdup_printf()/@ if a different
    -- variation of ISO 8601 format is required.
    --
    -- If /@time_@/ represents a date which is too large to fit into a @struct tm@,
    -- 'P.Nothing' will be returned. This is platform dependent. Note also that since
    -- @GTimeVal@ stores the number of seconds as a @glong@, on 32-bit systems it
    -- is subject to the year 2038 problem. Accordingly, since GLib 2.62, this
    -- function has been deprecated. Equivalent functionality is available using:
    -- >
    -- >GDateTime *dt = g_date_time_new_from_unix_utc (time_val);
    -- >iso8601_string = g_date_time_format_iso8601 (dt);
    -- >g_date_time_unref (dt);
    --
    --
    -- The return value of 'GI.GLib.Structs.TimeVal.timeValToIso8601' has been nullable since GLib
    -- 2.54; before then, GLib would crash under the same conditions.
    --
    -- /Since: 2.12/
    timeValToIso8601 ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        TimeVal
        -- ^ /@time_@/: a t'GI.GLib.Structs.TimeVal.TimeVal'
        -> m (Maybe T.Text)
        -- ^ __Returns:__ a newly allocated string containing an ISO 8601 date,
        --    or 'P.Nothing' if /@time_@/ was too large
    timeValToIso8601 :: TimeVal -> m (Maybe Text)
    timeValToIso8601 time_ :: TimeVal
    time_ = IO (Maybe Text) -> m (Maybe Text)
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO (Maybe Text) -> m (Maybe Text))
    -> IO (Maybe Text) -> m (Maybe Text)
    forall a b. (a -> b) -> a -> b
    $ do
        Ptr TimeVal
    time_' <- TimeVal -> IO (Ptr TimeVal)
    forall a. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr a)
    unsafeManagedPtrGetPtr TimeVal
    time_
        CString
    result <- Ptr TimeVal -> IO CString
    g_time_val_to_iso8601 Ptr TimeVal
    time_'
        Maybe Text
    maybeResult <- CString -> (CString -> IO Text) -> IO (Maybe Text)
    forall a b. Ptr a -> (Ptr a -> IO b) -> IO (Maybe b)
    convertIfNonNull CString
    result ((CString -> IO Text) -> IO (Maybe Text))
    -> (CString -> IO Text) -> IO (Maybe Text)
    forall a b. (a -> b) -> a -> b
    $ \result' :: CString
    result' -> do
            Text
    result'' <- HasCallStack => CString -> IO Text
    CString -> IO Text
    cstringToText CString
    result'
            CString -> IO ()
    forall a. Ptr a -> IO ()
    freeMem CString
    result'
            Text -> IO Text
    forall (m :: * -> *) a. Monad m => a -> m a
    return Text
    result''
        TimeVal -> IO ()
    forall a. ManagedPtrNewtype a => a -> IO ()
    touchManagedPtr TimeVal
    time_
        Maybe Text -> IO (Maybe Text)
    forall (m :: * -> *) a. Monad m => a -> m a
    return Maybe Text
    maybeResult

    #if defined(ENABLE_OVERLOADING)
    data TimeValToIso8601MethodInfo
    instance (signature ~ (m (Maybe T.Text)), MonadIO m) => O.MethodInfo TimeValToIso8601MethodInfo TimeVal signature where
        overloadedMethod = timeValToIso8601

    #endif

    -- method TimeVal::from_iso8601
    -- method type : MemberFunction
    -- Args: [ Arg
    --           { argCName = "iso_date"
    --           , argType = TBasicType TUTF8
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "an ISO 8601 encoded date string"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "time_"
    --           , argType =
    --               TInterface Name { namespace = "GLib" , name = "TimeVal" }
    --           , direction = DirectionOut
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a #GTimeVal" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = True
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TBasicType TBoolean)
    -- throws : False
    -- Skip return : False

    foreign import ccall "g_time_val_from_iso8601" g_time_val_from_iso8601 ::
        CString ->                              -- iso_date : TBasicType TUTF8
        Ptr TimeVal ->                          -- time_ : TInterface (Name {namespace = "GLib", name = "TimeVal"})
        IO CInt

    {-# DEPRECATED timeValFromIso8601 ["(Since version 2.62)","t'GI.GLib.Structs.TimeVal.TimeVal' is not year-2038-safe. Use","   'GI.GLib.Structs.DateTime.dateTimeNewFromIso8601' instead."] #-}
    -- | Converts a string containing an ISO 8601 encoded date and time
    -- to a t'GI.GLib.Structs.TimeVal.TimeVal' and puts it into /@time_@/.
    --
    -- /@isoDate@/ must include year, month, day, hours, minutes, and
    -- seconds. It can optionally include fractions of a second and a time
    -- zone indicator. (In the absence of any time zone indication, the
    -- timestamp is assumed to be in local time.)
    --
    -- Any leading or trailing space in /@isoDate@/ is ignored.
    --
    -- This function was deprecated, along with t'GI.GLib.Structs.TimeVal.TimeVal' itself, in GLib 2.62.
    -- Equivalent functionality is available using code like:
    -- >
    -- >GDateTime *dt = g_date_time_new_from_iso8601 (iso8601_string, NULL);
    -- >gint64 time_val = g_date_time_to_unix (dt);
    -- >g_date_time_unref (dt);
    --
    --
    -- /Since: 2.12/
    timeValFromIso8601 ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        T.Text
        -- ^ /@isoDate@/: an ISO 8601 encoded date string
        -> m ((Bool, TimeVal))
        -- ^ __Returns:__ 'P.True' if the conversion was successful.
    timeValFromIso8601 :: Text -> m (Bool, TimeVal)
    timeValFromIso8601 isoDate :: Text
    isoDate = IO (Bool, TimeVal) -> m (Bool, TimeVal)
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO (Bool, TimeVal) -> m (Bool, TimeVal))
    -> IO (Bool, TimeVal) -> m (Bool, TimeVal)
    forall a b. (a -> b) -> a -> b
    $ do
        CString
    isoDate' <- Text -> IO CString
    textToCString Text
    isoDate
        Ptr TimeVal
    time_ <- Int -> IO (Ptr TimeVal)
    forall a. Int -> IO (Ptr a)
    SP.callocBytes 16 :: IO (Ptr TimeVal)
        CInt
    result <- CString -> Ptr TimeVal -> IO CInt
    g_time_val_from_iso8601 CString
    isoDate' Ptr TimeVal
    time_
        let result' :: Bool
    result' = (CInt -> CInt -> Bool
    forall a. Eq a => a -> a -> Bool
    /= 0) CInt
    result
        TimeVal
    time_' <- ((ManagedPtr TimeVal -> TimeVal) -> Ptr TimeVal -> IO TimeVal
    forall a.
    (HasCallStack, BoxedPtr a) =>
    (ManagedPtr a -> a) -> Ptr a -> IO a
    wrapPtr ManagedPtr TimeVal -> TimeVal
    TimeVal) Ptr TimeVal
    time_
        CString -> IO ()
    forall a. Ptr a -> IO ()
    freeMem CString
    isoDate'
        (Bool, TimeVal) -> IO (Bool, TimeVal)
    forall (m :: * -> *) a. Monad m => a -> m a
    return (Bool
    result', TimeVal
    time_')

    #if defined(ENABLE_OVERLOADING)
    #endif

    #if defined(ENABLE_OVERLOADING)
    type family ResolveTimeValMethod (t :: Symbol) (o :: *) :: * where
        ResolveTimeValMethod "add" o = TimeValAddMethodInfo
        ResolveTimeValMethod "toIso8601" o = TimeValToIso8601MethodInfo
        ResolveTimeValMethod l o = O.MethodResolutionFailed l o

    instance (info ~ ResolveTimeValMethod t TimeVal, O.MethodInfo info TimeVal p) => OL.IsLabel t (TimeVal -> p) where
    #if MIN_VERSION_base(4,10,0)
        fromLabel = O.overloadedMethod @info
    #else
        fromLabel _ = O.overloadedMethod @info
    #endif

    #endif