X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FCapability.h;h=89b813f6d3f725e77bc7dabfc30886ae17cdd486;hb=17a596022d01987d5ffe7db0742aa8db267b8cc3;hp=70d9ee9e8de418b4f9d3e1a6b17b47c025c00e74;hpb=8f52645bd99ee3e636a34826c0cbfc5939920da1;p=ghc-hetmet.git

diff --git a/rts/Capability.h b/rts/Capability.h
index 70d9ee9..89b813f 100644
--- a/rts/Capability.h
+++ b/rts/Capability.h
@@ -25,6 +25,7 @@
 
 #include "RtsFlags.h"
 #include "Task.h"
+#include "Sparks.h"
 
 struct Capability_ {
     // State required by the STG virtual machine when running Haskell
@@ -90,6 +91,13 @@ struct Capability_ {
     // woken up by another Capability.
     StgTSO *wakeup_queue_hd;
     StgTSO *wakeup_queue_tl;
+
+    SparkPool *sparks;
+
+    // Stats on spark creation/conversion
+    nat sparks_created;
+    nat sparks_converted;
+    nat sparks_pruned;
 #endif
 
     // Per-capability STM-related data
@@ -98,6 +106,7 @@ struct Capability_ {
     StgTRecChunk *free_trec_chunks;
     StgTRecHeader *free_trec_headers;
     nat transaction_tokens;
+
 }; // typedef Capability, defined in RtsAPI.h
 
 
@@ -143,12 +152,16 @@ void initCapabilities (void);
 // ASSUMES: cap->running_task is the current Task.
 //
 #if defined(THREADED_RTS)
-void releaseCapability  (Capability* cap);
-void releaseCapability_ (Capability* cap); // assumes cap->lock is held
+void releaseCapability           (Capability* cap);
+void releaseAndWakeupCapability  (Capability* cap);
+void releaseCapability_ (Capability* cap, rtsBool always_wakeup); 
+// assumes cap->lock is held
 #else
 // releaseCapability() is empty in non-threaded RTS
 INLINE_HEADER void releaseCapability  (Capability* cap STG_UNUSED) {};
-INLINE_HEADER void releaseCapability_ (Capability* cap STG_UNUSED) {};
+INLINE_HEADER void releaseAndWakeupCapability  (Capability* cap STG_UNUSED) {};
+INLINE_HEADER void releaseCapability_ (Capability* cap STG_UNUSED, 
+                                       rtsBool always_wakeup STG_UNUSED) {};
 #endif
 
 #if !IN_STG_CODE
@@ -227,6 +240,14 @@ void shutdownCapability (Capability *cap, Task *task, rtsBool wait_foreign);
 //
 rtsBool tryGrabCapability (Capability *cap, Task *task);
 
+// Try to steal a spark from other Capabilities
+//
+rtsBool stealWork (Capability *cap);
+
+INLINE_HEADER rtsBool emptySparkPoolCap (Capability *cap);
+INLINE_HEADER nat     sparkPoolSizeCap  (Capability *cap);
+INLINE_HEADER void    discardSparksCap  (Capability *cap);
+
 #else // !THREADED_RTS
 
 // Grab a capability.  (Only in the non-threaded RTS; in the threaded
@@ -243,7 +264,8 @@ void setContextSwitches(void);
 void freeCapability (Capability *cap);
 
 // FOr the GC:
-void markSomeCapabilities (evac_fn evac, void *user, nat i0, nat delta);
+void markSomeCapabilities (evac_fn evac, void *user, nat i0, nat delta, 
+                           rtsBool prune_sparks);
 void markCapabilities (evac_fn evac, void *user);
 void traverseSparkQueues (evac_fn evac, void *user);
 
@@ -269,4 +291,18 @@ recordMutableCap (StgClosure *p, Capability *cap, nat gen)
     *bd->free++ = (StgWord)p;
 }
 
+#if defined(THREADED_RTS)
+INLINE_HEADER rtsBool
+emptySparkPoolCap (Capability *cap) 
+{ return looksEmpty(cap->sparks); }
+
+INLINE_HEADER nat
+sparkPoolSizeCap (Capability *cap) 
+{ return sparkPoolSize(cap->sparks); }
+
+INLINE_HEADER void
+discardSparksCap (Capability *cap) 
+{ return discardSparks(cap->sparks); }
+#endif
+
 #endif /* CAPABILITY_H */