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author | msofer <msofer@noemail.net> | 2011-03-05 13:26:00 (GMT) |
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committer | msofer <msofer@noemail.net> | 2011-03-05 13:26:00 (GMT) |
commit | f8866712f94365027611a04bd26007463c5c8d08 (patch) | |
tree | c5035756a8136caf1e5f7cb8f77f731a0154d479 /generic | |
parent | f370e6dabf25a9acbc8889655ab5d3325ca32dd9 (diff) | |
download | tcl-f8866712f94365027611a04bd26007463c5c8d08.zip tcl-f8866712f94365027611a04bd26007463c5c8d08.tar.gz tcl-f8866712f94365027611a04bd26007463c5c8d08.tar.bz2 |
Renamed BottomData to TEBCdata, so that the name refers to what it is rather than to its storage location.
FossilOrigin-Name: 9f40419fa62a67241017ade78b0fbcb364eb54c3
Diffstat (limited to 'generic')
-rw-r--r-- | generic/tclExecute.c | 97 |
1 files changed, 45 insertions, 52 deletions
diff --git a/generic/tclExecute.c b/generic/tclExecute.c index 5586506..6703d43 100644 --- a/generic/tclExecute.c +++ b/generic/tclExecute.c @@ -168,28 +168,28 @@ static BuiltinFunc const tclBuiltinFuncTable[] = { * Minimal data required to fully reconstruct the execution state. */ -typedef struct BottomData { +typedef struct TEBCdata { ByteCode *codePtr; /* Constant until the BC returns */ /* -----------------------------------------*/ - struct BottomData *expanded;/* NULL if unchanged, pointer to the succesor + struct TEBCdata *expanded;/* NULL if unchanged, pointer to the succesor * if it was expanded */ const unsigned char *pc; /* These fields are used on return TO this */ ptrdiff_t *catchTop; /* this level: they record the state when a */ int cleanup; /* new codePtr was received for NR */ Tcl_Obj *auxObjList; /* execution. */ int checkInterp; -} BottomData; +} TEBCdata; -#define NR_YIELD(invoke) \ +#define TEBC_YIELD() \ esPtr->tosPtr = tosPtr; \ - BP->pc = pc; \ - BP->cleanup = cleanup; \ - TclNRAddCallback(interp, TEBCresume, BP, \ - INT2PTR(invoke), NULL, NULL) + TD->pc = pc; \ + TD->cleanup = cleanup; \ + TclNRAddCallback(interp, TEBCresume, TD, \ + INT2PTR(1), NULL, NULL) -#define NR_DATA_DIG() \ - pc = BP->pc; \ - cleanup = BP->cleanup; \ +#define TEBC_DATA_DIG() \ + pc = TD->pc; \ + cleanup = TD->cleanup; \ tosPtr = esPtr->tosPtr @@ -1910,7 +1910,7 @@ TclIncrObj( * *---------------------------------------------------------------------- */ -#define bcFramePtr ((CmdFrame *) (BP + 1)) +#define bcFramePtr ((CmdFrame *) (TD + 1)) #define initCatchTop (((ptrdiff_t *) (bcFramePtr + 1)) - 1) #define initTosPtr ((Tcl_Obj **) (initCatchTop+codePtr->maxExceptDepth)) #define esPtr (iPtr->execEnvPtr->execStackPtr) @@ -1921,8 +1921,8 @@ TclNRExecuteByteCode( ByteCode *codePtr) /* The bytecode sequence to interpret. */ { Interp *iPtr = (Interp *) interp; - BottomData *BP; - int size = sizeof(BottomData) + sizeof(CmdFrame) + + TEBCdata *TD; + int size = sizeof(TEBCdata) + sizeof(CmdFrame) + + (codePtr->maxStackDepth + codePtr->maxExceptDepth) *(sizeof(Tcl_Obj *)); int numWords = (size + sizeof(Tcl_Obj *) - 1)/sizeof(Tcl_Obj *); @@ -1934,9 +1934,9 @@ TclNRExecuteByteCode( codePtr->refCount++; /* - * Reserve the stack, setup the BottomPtr and CallFrame + * Reserve the stack, setup the TEBCdataPtr (TD) and CallFrame * - * The execution uses a unified stack: first a BottomData, immediately + * The execution uses a unified stack: first a TEBCdata, immediately * above it a CmdFrame, then the catch stack, then the execution stack. * * Make sure the catch stack is large enough to hold the maximum number of @@ -1945,20 +1945,20 @@ TclNRExecuteByteCode( * execution stack is large enough to execute this ByteCode. */ - BP = (BottomData *) GrowEvaluationStack(iPtr->execEnvPtr, numWords, 0); + TD = (TEBCdata *) GrowEvaluationStack(iPtr->execEnvPtr, numWords, 0); esPtr->tosPtr = initTosPtr; - BP->codePtr = codePtr; - BP->expanded = NULL; - BP->pc = codePtr->codeStart; - BP->catchTop = initCatchTop; - BP->cleanup = 0; - BP->auxObjList = NULL; - BP->checkInterp = 0; + TD->codePtr = codePtr; + TD->expanded = NULL; + TD->pc = codePtr->codeStart; + TD->catchTop = initCatchTop; + TD->cleanup = 0; + TD->auxObjList = NULL; + TD->checkInterp = 0; /* * TIP #280: Initialize the frame. Do not push it yet: it will be pushed - * every time that we call out from this BP, popped when we return to it. + * every time that we call out from this TD, popped when we return to it. */ bcFramePtr->type = ((codePtr->flags & TCL_BYTECODE_PRECOMPILED) @@ -1985,9 +1985,9 @@ TclNRExecuteByteCode( * - bytecode execution */ - TclNRAddCallback(interp, TEBCreturn, BP, NULL, + TclNRAddCallback(interp, TEBCreturn, TD, NULL, NULL, NULL); - TclNRAddCallback(interp, TEBCresume, BP, + TclNRAddCallback(interp, TEBCresume, TD, /*resume*/ INT2PTR(0), NULL, NULL); return TCL_OK; @@ -1999,16 +1999,16 @@ TEBCreturn( Tcl_Interp *interp, int result) { - BottomData *BP = data[0]; - ByteCode *codePtr = BP->codePtr; + TEBCdata *TD = data[0]; + ByteCode *codePtr = TD->codePtr; if (--codePtr->refCount <= 0) { TclCleanupByteCode(codePtr); } - while (BP->expanded) { - BP = BP->expanded; + while (TD->expanded) { + TD = TD->expanded; } - TclStackFree(interp, BP); /* free my stack */ + TclStackFree(interp, TD); /* free my stack */ return result; } @@ -2036,7 +2036,6 @@ TEBCresume( /* * Bottom of allocated stack holds the NR data */ - /* NR_TEBC */ /* * Constants: variables that do not change during the execution, used @@ -2062,11 +2061,11 @@ TEBCresume( * used too frequently */ - BottomData *BP = data[0]; -#define auxObjList (BP->auxObjList) -#define catchTop (BP->catchTop) -#define codePtr (BP->codePtr) -#define checkInterp (BP->checkInterp) + TEBCdata *TD = data[0]; +#define auxObjList (TD->auxObjList) +#define catchTop (TD->catchTop) +#define codePtr (TD->codePtr) +#define checkInterp (TD->checkInterp) /* Indicates when a check of interp readyness * is necessary. Set by CACHE_STACK_INFO() */ @@ -2105,7 +2104,7 @@ TEBCresume( traceInstructions = (tclTraceExec == 3); #endif - NR_DATA_DIG(); + TEBC_DATA_DIG(); #ifdef TCL_COMPILE_DEBUG if (!data[1] && (tclTraceExec >= 2)) { @@ -2686,17 +2685,17 @@ TEBCresume( length = objc + (codePtr->maxStackDepth - TclGetInt4AtPtr(pc+1)); DECACHE_STACK_INFO(); moved = GrowEvaluationStack(iPtr->execEnvPtr, length, 1) - - (Tcl_Obj **) BP; + - (Tcl_Obj **) TD; if (moved) { /* * Change the global data to point to the new stack: move the - * bottomPtr, recompute the position of every other + * TEBCdataPtr TD, recompute the position of every other * stack-allocated parameter, update the stack pointers. */ esPtr = iPtr->execEnvPtr->execStackPtr; - BP->expanded = (BottomData *) (((Tcl_Obj **)BP) + moved); - BP = BP->expanded; + TD->expanded = (TEBCdata *) (((Tcl_Obj **)TD) + moved); + TD = TD->expanded; catchTop += moved; tosPtr += moved; @@ -2725,7 +2724,7 @@ TEBCresume( CACHE_STACK_INFO(); cleanup = 1; pc++; - NR_YIELD(1); + TEBC_YIELD(); return TclNRExecuteByteCode(interp, newCodePtr); } @@ -2740,7 +2739,7 @@ TEBCresume( cleanup = 1; pc += 1; - NR_YIELD(1); + TEBC_YIELD(); return TclNREvalObjEx(interp, OBJ_AT_TOS, 0, NULL, 0); case INST_INVOKE_EXPANDED: @@ -2811,7 +2810,7 @@ TEBCresume( DECACHE_STACK_INFO(); pc += pcAdjustment; - NR_YIELD(1); + TEBC_YIELD(); return TclNREvalObjv(interp, objc, objv, TCL_EVAL_NOERR, NULL); @@ -6418,12 +6417,6 @@ TEBCresume( CLANG_ASSERT(bcFramePtr); } - /* - * Store the previous bottomPtr for returning to it, then free all - * resources used by this bytecode and process callbacks until you return - * to the previous bytecode (if any). - */ - iPtr->cmdFramePtr = bcFramePtr->nextPtr; return result; } |