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Comments and formatting only
[ghc-hetmet.git]
/
rts
/
Capability.h
diff --git
a/rts/Capability.h
b/rts/Capability.h
index
41974dc
..
a32062a
100644
(file)
--- a/
rts/Capability.h
+++ b/
rts/Capability.h
@@
-4,6
+4,9
@@
*
* Capabilities
*
*
* Capabilities
*
+ * For details on the high-level design, see
+ * http://hackage.haskell.org/trac/ghc/wiki/Commentary/Rts/Scheduler
+ *
* A Capability holds all the state an OS thread/task needs to run
* Haskell code: its STG registers, a pointer to its TSO, a nursery
* etc. During STG execution, a pointer to the Capabilitity is kept in
* A Capability holds all the state an OS thread/task needs to run
* Haskell code: its STG registers, a pointer to its TSO, a nursery
* etc. During STG execution, a pointer to the Capabilitity is kept in
@@
-22,7
+25,7
@@
#include "Task.h"
#include "Sparks.h"
#include "Task.h"
#include "Sparks.h"
-BEGIN_RTS_PRIVATE
+#include "BeginPrivate.h"
struct Capability_ {
// State required by the STG virtual machine when running Haskell
struct Capability_ {
// State required by the STG virtual machine when running Haskell
@@
-88,11
+91,8
@@
struct Capability_ {
Task *returning_tasks_hd; // Singly-linked, with head/tail
Task *returning_tasks_tl;
Task *returning_tasks_hd; // Singly-linked, with head/tail
Task *returning_tasks_tl;
- // A list of threads to append to this Capability's run queue at
- // the earliest opportunity. These are threads that have been
- // woken up by another Capability.
- StgTSO *wakeup_queue_hd;
- StgTSO *wakeup_queue_tl;
+ // Messages, or END_TSO_QUEUE.
+ Message *inbox;
SparkPool *sparks;
SparkPool *sparks;
@@
-202,7
+202,9
@@
extern volatile StgWord waiting_for_gc;
//
void waitForReturnCapability (Capability **cap/*in/out*/, Task *task);
//
void waitForReturnCapability (Capability **cap/*in/out*/, Task *task);
-INLINE_HEADER void recordMutableCap (StgClosure *p, Capability *cap, nat gen);
+EXTERN_INLINE void recordMutableCap (StgClosure *p, Capability *cap, nat gen);
+
+EXTERN_INLINE void recordClosureMutated (Capability *cap, StgClosure *p);
#if defined(THREADED_RTS)
#if defined(THREADED_RTS)
@@
-225,12
+227,6
@@
void yieldCapability (Capability** pCap, Task *task);
//
void waitForCapability (Task *task, Mutex *mutex, Capability **pCap);
//
void waitForCapability (Task *task, Mutex *mutex, Capability **pCap);
-// Wakes up a thread on a Capability (probably a different Capability
-// from the one held by the current Task).
-//
-void wakeupThreadOnCapability (Capability *my_cap, Capability *other_cap,
- StgTSO *tso);
-
// Wakes up a worker thread on just one Capability, used when we
// need to service some global event.
//
// Wakes up a worker thread on just one Capability, used when we
// need to service some global event.
//
@@
-280,15
+276,25
@@
void freeCapabilities (void);
// For the GC:
void markSomeCapabilities (evac_fn evac, void *user, nat i0, nat delta,
// For the GC:
void markSomeCapabilities (evac_fn evac, void *user, nat i0, nat delta,
- rtsBool prune_sparks);
+ rtsBool no_mark_sparks);
void markCapabilities (evac_fn evac, void *user);
void traverseSparkQueues (evac_fn evac, void *user);
/* -----------------------------------------------------------------------------
void markCapabilities (evac_fn evac, void *user);
void traverseSparkQueues (evac_fn evac, void *user);
/* -----------------------------------------------------------------------------
+ Messages
+ -------------------------------------------------------------------------- */
+
+#ifdef THREADED_RTS
+
+INLINE_HEADER rtsBool emptyInbox(Capability *cap);;
+
+#endif // THREADED_RTS
+
+/* -----------------------------------------------------------------------------
* INLINE functions... private below here
* -------------------------------------------------------------------------- */
* INLINE functions... private below here
* -------------------------------------------------------------------------- */
-INLINE_HEADER void
+EXTERN_INLINE void
recordMutableCap (StgClosure *p, Capability *cap, nat gen)
{
bdescr *bd;
recordMutableCap (StgClosure *p, Capability *cap, nat gen)
{
bdescr *bd;
@@
-307,6
+313,15
@@
recordMutableCap (StgClosure *p, Capability *cap, nat gen)
*bd->free++ = (StgWord)p;
}
*bd->free++ = (StgWord)p;
}
+EXTERN_INLINE void
+recordClosureMutated (Capability *cap, StgClosure *p)
+{
+ bdescr *bd;
+ bd = Bdescr((StgPtr)p);
+ if (bd->gen_no != 0) recordMutableCap(p,cap,bd->gen_no);
+}
+
+
#if defined(THREADED_RTS)
INLINE_HEADER rtsBool
emptySparkPoolCap (Capability *cap)
#if defined(THREADED_RTS)
INLINE_HEADER rtsBool
emptySparkPoolCap (Capability *cap)
@@
-333,6
+348,15
@@
contextSwitchCapability (Capability *cap)
cap->context_switch = 1;
}
cap->context_switch = 1;
}
-END_RTS_PRIVATE
+#ifdef THREADED_RTS
+
+INLINE_HEADER rtsBool emptyInbox(Capability *cap)
+{
+ return (cap->inbox == (Message*)END_TSO_QUEUE);
+}
+
+#endif
+
+#include "EndPrivate.h"
#endif /* CAPABILITY_H */
#endif /* CAPABILITY_H */