[commit: ghc] ghc-7.10: base: Add Haddocks to GHC.RTS.Flags (3d42460)
git at git.haskell.org
git at git.haskell.org
Mon Oct 26 18:09:36 UTC 2015
Repository : ssh://git@git.haskell.org/ghc
On branch : ghc-7.10
Link : http://ghc.haskell.org/trac/ghc/changeset/3d42460745e8e4835b0ea74f46133a978650e0e1/ghc
>---------------------------------------------------------------
commit 3d42460745e8e4835b0ea74f46133a978650e0e1
Author: Ben Gamari <ben at smart-cactus.org>
Date: Mon Oct 26 19:10:50 2015 +0100
base: Add Haddocks to GHC.RTS.Flags
>---------------------------------------------------------------
3d42460745e8e4835b0ea74f46133a978650e0e1
libraries/base/GHC/RTS/Flags.hsc | 49 +++++++++++++++++++++++++++++++++++++---
1 file changed, 46 insertions(+), 3 deletions(-)
diff --git a/libraries/base/GHC/RTS/Flags.hsc b/libraries/base/GHC/RTS/Flags.hsc
index d2afcab..62e720f 100644
--- a/libraries/base/GHC/RTS/Flags.hsc
+++ b/libraries/base/GHC/RTS/Flags.hsc
@@ -54,11 +54,19 @@ import GHC.Show
import GHC.Word
-- | @'Time'@ is defined as a @'StgWord64'@ in @stg/Types.h@
+--
+-- @since 4.8.2.0
type RtsTime = Word64
-- | @'nat'@ defined in @rts/Types.h@
+--
+-- @since 4.8.2.0
type RtsNat = #{type unsigned int}
+-- | Should we produce a summary of the garbage collector statistics after the
+-- program has exited?
+--
+-- @since 4.8.2.0
data GiveGCStats
= NoGCStats
| CollectGCStats
@@ -81,6 +89,9 @@ instance Enum GiveGCStats where
toEnum #{const VERBOSE_GC_STATS} = VerboseGCStats
toEnum e = error ("invalid enum for GiveGCStats: " ++ show e)
+-- | Parameters of the garbage collector.
+--
+-- @since 4.8.0.0
data GCFlags = GCFlags
{ statsFile :: Maybe FilePath
, giveStats :: GiveGCStats
@@ -110,11 +121,17 @@ data GCFlags = GCFlags
, allocLimitGrace :: Word
} deriving (Show)
+-- | Parameters concerning context switching
+--
+-- @since 4.8.0.0
data ConcFlags = ConcFlags
{ ctxtSwitchTime :: RtsTime
, ctxtSwitchTicks :: Int
} deriving (Show)
+-- | Miscellaneous parameters
+--
+-- @since 4.8.0.0
data MiscFlags = MiscFlags
{ tickInterval :: RtsTime
, installSignalHandlers :: Bool
@@ -125,6 +142,8 @@ data MiscFlags = MiscFlags
-- | Flags to control debugging output & extra checking in various
-- subsystems.
+--
+-- @since 4.8.0.0
data DebugFlags = DebugFlags
{ scheduler :: Bool -- ^ 's'
, interpreter :: Bool -- ^ 'i'
@@ -143,6 +162,9 @@ data DebugFlags = DebugFlags
, sparks :: Bool -- ^ 'r'
} deriving (Show)
+-- | Should the RTS produce a cost-center summary?
+--
+-- @since 4.8.2.0
data DoCostCentres
= CostCentresNone
| CostCentresSummary
@@ -165,12 +187,18 @@ instance Enum DoCostCentres where
toEnum #{const COST_CENTRES_XML} = CostCentresXML
toEnum e = error ("invalid enum for DoCostCentres: " ++ show e)
+-- | Parameters pertaining to the cost-center profiler.
+--
+-- @since 4.8.0.0
data CCFlags = CCFlags
{ doCostCentres :: DoCostCentres
, profilerTicks :: Int
, msecsPerTick :: Int
} deriving (Show)
+-- | What sort of heap profile are we collecting?
+--
+-- @since 4.8.2.0
data DoHeapProfile
= NoHeapProfiling
| HeapByCCS
@@ -202,6 +230,9 @@ instance Enum DoHeapProfile where
toEnum #{const HEAP_BY_CLOSURE_TYPE} = HeapByClosureType
toEnum e = error ("invalid enum for DoHeapProfile: " ++ show e)
+-- | Parameters of the cost-center profiler
+--
+-- @since 4.8.0.0
data ProfFlags = ProfFlags
{ doHeapProfile :: DoHeapProfile
, heapProfileInterval :: RtsTime -- ^ time between samples
@@ -219,10 +250,13 @@ data ProfFlags = ProfFlags
, bioSelector :: Maybe String
} deriving (Show)
+-- | Is event tracing enabled?
+--
+-- @since 4.8.2.0
data DoTrace
- = TraceNone
- | TraceEventLog
- | TraceStderr
+ = TraceNone -- ^ no tracing
+ | TraceEventLog -- ^ send tracing events to the event log
+ | TraceStderr -- ^ send tracing events to @stderr@
deriving (Show)
instance Enum DoTrace where
@@ -235,6 +269,9 @@ instance Enum DoTrace where
toEnum #{const TRACE_STDERR} = TraceStderr
toEnum e = error ("invalid enum for DoTrace: " ++ show e)
+-- | Parameters pertaining to event tracing
+--
+-- @since 4.8.0.0
data TraceFlags = TraceFlags
{ tracing :: DoTrace
, timestamp :: Bool -- ^ show timestamp in stderr output
@@ -245,11 +282,17 @@ data TraceFlags = TraceFlags
, user :: Bool -- ^ trace user events (emitted from Haskell code)
} deriving (Show)
+-- | Parameters pertaining to ticky-ticky profiler
+--
+-- @since 4.8.0.0
data TickyFlags = TickyFlags
{ showTickyStats :: Bool
, tickyFile :: Maybe FilePath
} deriving (Show)
+-- | Parameters of the runtime system
+--
+-- @since 4.8.0.0
data RTSFlags = RTSFlags
{ gcFlags :: GCFlags
, concurrentFlags :: ConcFlags
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