/* -----------------------------------------------------------------------------
- * $Id: TSO.h,v 1.23 2001/08/29 17:24:25 qrczak Exp $
+ * $Id: TSO.h,v 1.33 2003/11/12 17:27:05 sof Exp $
*
* (c) The GHC Team, 1998-1999
*
CostCentreStack *CCCS; /* thread's current CCS */
} StgTSOProfInfo;
#else /* !PROFILING */
+# if defined(SUPPORTS_EMPTY_STRUCTS)
typedef struct {
+ /* empty */
} StgTSOProfInfo;
+# endif
#endif /* PROFILING */
#if defined(PAR)
typedef StgTSOStatBuf StgTSOParInfo;
#else /* !PAR */
+# if defined(SUPPORTS_EMPTY_STRUCTS)
typedef struct {
+ /* empty */
} StgTSOParInfo;
+# endif
#endif /* PAR */
#if defined(DIST)
StgInt revalSlot;
} StgTSODistInfo;
#else /* !DIST */
+# if defined(SUPPORTS_EMPTY_STRUCTS)
typedef struct {
+ /* empty */
} StgTSODistInfo;
+# endif
#endif /* DIST */
#if defined(GRAN)
typedef StgTSOStatBuf StgTSOGranInfo;
#else /* !GRAN */
+# if defined(SUPPORTS_EMPTY_STRUCTS)
typedef struct {
+ /* empty */
} StgTSOGranInfo;
+# endif
#endif /* GRAN */
typedef struct {
} StgTSOTickyInfo;
#else /* !TICKY_TICKY */
+# if defined(SUPPORTS_EMPTY_STRUCTS)
typedef struct {
+ /* empty */
} StgTSOTickyInfo;
+# endif
#endif /* TICKY_TICKY */
typedef enum {
* The what_next field of a TSO indicates how the thread is to be run.
*/
typedef enum {
- ThreadEnterGHC, /* enter top thunk on stack */
ThreadRunGHC, /* return to address on top of stack */
- ThreadEnterInterp, /* enter top thunk on stack (w/ interpreter) */
+ ThreadInterpret, /* interpret this thread */
ThreadKilled, /* thread has died, don't run it */
ThreadRelocated, /* thread has moved, link points to new locn */
ThreadComplete /* thread has finished */
BlockedOnRead,
BlockedOnWrite,
BlockedOnDelay
+#if defined(mingw32_TARGET_OS)
+ , BlockedOnDoProc
+#endif
#if defined(PAR)
, BlockedOnGA // blocked on a remote closure represented by a Global Address
, BlockedOnGA_NoSend // same as above but without sending a Fetch message
#endif
+#if defined(RTS_SUPPORTS_THREADS)
+ , BlockedOnCCall
+ , BlockedOnCCall_NoUnblockExc // same as above but don't unblock async exceptions
+ // in resumeThread()
+#endif
} StgTSOBlockReason;
+#if defined(mingw32_TARGET_OS)
+/* results from an async I/O request + it's ID. */
+typedef struct {
+ unsigned int reqID;
+ int len;
+ int errCode;
+} StgAsyncIOResult;
+#endif
+
typedef union {
StgClosure *closure;
struct StgTSO_ *tso;
int fd;
+#if defined(mingw32_TARGET_OS)
+ StgAsyncIOResult* async_result;
+#endif
unsigned int target;
} StgTSOBlockInfo;
StgTSOBlockInfo block_info;
struct StgTSO_* blocked_exceptions;
StgThreadID id;
-
- StgTSOTickyInfo ticky;
- StgTSOProfInfo prof;
- StgTSOParInfo par;
- StgTSOGranInfo gran;
- StgTSODistInfo dist;
+ int saved_errno;
+
+ MAYBE_EMPTY_STRUCT(StgTSOTickyInfo,ticky)
+ MAYBE_EMPTY_STRUCT(StgTSOProfInfo,prof)
+ MAYBE_EMPTY_STRUCT(StgTSOParInfo,par)
+ MAYBE_EMPTY_STRUCT(StgTSOGranInfo,gran)
+ MAYBE_EMPTY_STRUCT(StgTSODistInfo,dist)
/* The thread stack... */
StgWord stack_size; /* stack size in *words* */
StgWord max_stack_size; /* maximum stack size in *words* */
StgPtr sp;
- StgUpdateFrame* su;
StgWord stack[FLEXIBLE_ARRAY];
} StgTSO;