diff options
Diffstat (limited to 'generic/tclIORChan.c')
| -rw-r--r-- | generic/tclIORChan.c | 82 |
1 files changed, 43 insertions, 39 deletions
diff --git a/generic/tclIORChan.c b/generic/tclIORChan.c index 6ddcce8..1a65770 100644 --- a/generic/tclIORChan.c +++ b/generic/tclIORChan.c @@ -15,7 +15,7 @@ * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclIORChan.c,v 1.24 2007/04/24 02:42:18 kennykb Exp $ + * RCS: @(#) $Id: tclIORChan.c,v 1.24.2.1 2007/11/21 06:30:52 dgp Exp $ */ #include <tclInt.h> @@ -217,9 +217,9 @@ typedef enum { /* * Event used to forward driver invocations to the thread actually managing - * the channel. We cannot construct the command to execute and forward - * that. Because then it will contain a mixture of Tcl_Obj's belonging to both - * the command handler thread (CT), and the thread managing the channel (MT), + * the channel. We cannot construct the command to execute and forward that. + * Because then it will contain a mixture of Tcl_Obj's belonging to both the + * command handler thread (CT), and the thread managing the channel (MT), * executed in CT. Tcl_Obj's are not allowed to cross thread boundaries. So we * forward an operation code, the argument details, and reference to results. * The command is assembled in the CT and belongs fully to that thread. No @@ -377,8 +377,7 @@ static void DstExitProc(ClientData clientData); (p)->base.mustFree = 1; \ (p)->base.msgStr = (char *) (emsg) -static void ForwardSetObjError(ForwardParam *p, - Tcl_Obj *objPtr); +static void ForwardSetObjError(ForwardParam *p, Tcl_Obj *objPtr); #endif /* TCL_THREADS */ #define SetChannelErrorStr(c,msgStr) \ @@ -387,7 +386,7 @@ static void ForwardSetObjError(ForwardParam *p, static Tcl_Obj * MarshallError(Tcl_Interp *interp); static void UnmarshallErrorResult(Tcl_Interp *interp, Tcl_Obj *msgObj); - + /* * Static functions for this file: */ @@ -419,7 +418,7 @@ static const char *msg_seek_beforestart = "{Tried to seek before origin}"; static const char *msg_send_originlost = "{Origin thread lost}"; static const char *msg_send_dstlost = "{Destination thread lost}"; #endif /* TCL_THREADS */ - + /* * Main methods to plug into the 'chan' ensemble'. ================== */ @@ -498,7 +497,7 @@ TclChanCreateObjCmd( /* * Second argument is command prefix, i.e. list of words, first word is - * name of handler command, other words are fixed arguments. Run + * name of handler command, other words are fixed arguments. Run the * 'initialize' method to get the list of supported methods. Validate * this. */ @@ -669,6 +668,7 @@ TclChanCreateObjCmd( /* * Signal to ReflectClose to not call 'finalize'. */ + rcPtr->methods = 0; Tcl_Close(interp, chan); return TCL_ERROR; @@ -1258,8 +1258,7 @@ ReflectSeekWide( int *errorCodePtr) { ReflectedChannel *rcPtr = (ReflectedChannel *) clientData; - Tcl_Obj *offObj; - Tcl_Obj *baseObj; + Tcl_Obj *offObj, *baseObj; Tcl_Obj *resObj; /* Result for 'seek' */ Tcl_WideInt newLoc; @@ -1491,8 +1490,7 @@ ReflectSetOption( const char *newValue) /* The new value */ { ReflectedChannel *rcPtr = (ReflectedChannel *) clientData; - Tcl_Obj *optionObj; - Tcl_Obj *valueObj; + Tcl_Obj *optionObj, *valueObj; int result; /* Result code for 'configure' */ Tcl_Obj *resObj; /* Result data for 'configure' */ @@ -1683,9 +1681,9 @@ ReflectGetOption( * EncodeEventMask -- * * This function takes a list of event items and constructs the - * equivalent internal bitmask. The list has to contain at least one - * element. Elements are "read", "write", or any unique abbreviation - * thereof. Note that the bitmask is not changed if problems are + * equivalent internal bitmask. The list must contain at least one + * element. Elements are "read", "write", or any unique abbreviation of + * them. Note that the bitmask is not changed if problems are * encountered. * * Results: @@ -1812,9 +1810,8 @@ NewReflectedChannel( Tcl_Obj *handleObj) { ReflectedChannel *rcPtr; - int listc; + int i, listc; Tcl_Obj **listv; - int i; rcPtr = (ReflectedChannel *) ckalloc(sizeof(ReflectedChannel)); @@ -1849,7 +1846,7 @@ NewReflectedChannel( */ rcPtr->argc = listc + 2; - rcPtr->argv = (Tcl_Obj**) ckalloc(sizeof(Tcl_Obj*) * (listc+4)); + rcPtr->argv = (Tcl_Obj **) ckalloc(sizeof(Tcl_Obj *) * (listc+4)); /* * Duplicate object references. @@ -1857,14 +1854,16 @@ NewReflectedChannel( for (i=0; i<listc ; i++) { Tcl_Obj *word = rcPtr->argv[i] = listv[i]; + Tcl_IncrRefCount(word); } i++; /* Skip placeholder for method */ /* - * [SF Bug 1667990] See [x] in FreeReflectedChannel for release + * [Bug 1667990]: See [x] in FreeReflectedChannel for release */ + rcPtr->argv[i] = handleObj; Tcl_IncrRefCount(handleObj); @@ -1942,9 +1941,9 @@ FreeReflectedChannel( } /* - * [SF Bug 1667990] See [x] in NewReflectedChannel for lock - * n+1 = argc-1. + * [Bug 1667990]: See [x] in NewReflectedChannel for lock. n+1 = argc-1. */ + Tcl_DecrRefCount(rcPtr->argv[n+1]); ckfree((char*) rcPtr->argv); @@ -1985,9 +1984,8 @@ InvokeTclMethod( Tcl_Obj *resObj = NULL; /* Result of method invokation. */ /* - * NOTE (5): Decide impl. issue: Cache objects with method names? - * Requires TSD data as reflections can be created in many different - * threads. + * NOTE (5): Decide impl. issue: Cache objects with method names? Needs + * TSD data as reflections can be created in many different threads. */ /* @@ -2047,6 +2045,7 @@ InvokeTclMethod( * This is complex and ugly, and would be completely unnecessary * if we only added support for a TCL_FORBID_EXCEPTIONS flag. */ + if (result != TCL_ERROR) { Tcl_Obj *cmd = Tcl_NewListObj(cmdc, rcPtr->argv); int cmdLen; @@ -2056,7 +2055,8 @@ InvokeTclMethod( Tcl_ResetResult(rcPtr->interp); Tcl_SetObjResult(rcPtr->interp, Tcl_ObjPrintf( "chan handler returned bad code: %d", result)); - Tcl_LogCommandInfo(rcPtr->interp, cmdString, cmdString, cmdLen); + Tcl_LogCommandInfo(rcPtr->interp, cmdString, cmdString, + cmdLen); Tcl_DecrRefCount(cmd); result = TCL_ERROR; } @@ -2160,8 +2160,8 @@ ForwardOpToOwnerThread( while (resultPtr->result < 0) { /* * NOTE (1): Is it possible that the current thread goes away while - * waiting here? IOW Is it possible that "SrcExitProc" is called - * while we are here? See complementary note (2) in "SrcExitProc" + * waiting here? IOW Is it possible that "SrcExitProc" is called while + * we are here? See complementary note (2) in "SrcExitProc" */ Tcl_ConditionWait(&resultPtr->done, &rcForwardMutex, NULL); @@ -2242,7 +2242,7 @@ ForwardProc( * No parameters/results. */ - if (InvokeTclMethod(rcPtr, "finalize", NULL, NULL, &resObj) != TCL_OK) { + if (InvokeTclMethod(rcPtr, "finalize", NULL, NULL, &resObj)!=TCL_OK) { ForwardSetObjError(paramPtr, resObj); } @@ -2258,7 +2258,7 @@ ForwardProc( case ForwardedInput: { Tcl_Obj *toReadObj = Tcl_NewIntObj(paramPtr->input.toRead); - if (InvokeTclMethod(rcPtr, "read", toReadObj, NULL, &resObj) != TCL_OK) { + if (InvokeTclMethod(rcPtr, "read", toReadObj, NULL, &resObj)!=TCL_OK){ ForwardSetObjError(paramPtr, resObj); paramPtr->input.toRead = -1; } else { @@ -2266,8 +2266,8 @@ ForwardProc( * Process a regular result. */ - int bytec; /* Number of returned bytes */ - unsigned char *bytev; /* Array of returned bytes */ + int bytec; /* Number of returned bytes */ + unsigned char *bytev; /* Array of returned bytes */ bytev = Tcl_GetByteArrayFromObj(resObj, &bytec); @@ -2317,7 +2317,7 @@ ForwardProc( (paramPtr->seek.seekMode==SEEK_SET) ? "start" : (paramPtr->seek.seekMode==SEEK_CUR) ? "current" : "end", -1); - if (InvokeTclMethod(rcPtr, "seek", offObj, baseObj, &resObj) != TCL_OK) { + if (InvokeTclMethod(rcPtr, "seek", offObj, baseObj, &resObj)!=TCL_OK){ ForwardSetObjError(paramPtr, resObj); paramPtr->seek.offset = -1; } else { @@ -2354,7 +2354,8 @@ ForwardProc( case ForwardedBlock: { Tcl_Obj *blockObj = Tcl_NewBooleanObj(!paramPtr->block.nonblocking); - if (InvokeTclMethod(rcPtr, "blocking", blockObj, NULL, &resObj) != TCL_OK) { + if (InvokeTclMethod(rcPtr, "blocking", blockObj, NULL, + &resObj) != TCL_OK) { ForwardSetObjError(paramPtr, resObj); } break; @@ -2364,7 +2365,8 @@ ForwardProc( Tcl_Obj *optionObj = Tcl_NewStringObj(paramPtr->setOpt.name, -1); Tcl_Obj *valueObj = Tcl_NewStringObj(paramPtr->setOpt.value, -1); - if (InvokeTclMethod(rcPtr, "configure", optionObj, valueObj, &resObj) != TCL_OK) { + if (InvokeTclMethod(rcPtr, "configure", optionObj, valueObj, + &resObj) != TCL_OK) { ForwardSetObjError(paramPtr, resObj); } break; @@ -2377,10 +2379,11 @@ ForwardProc( Tcl_Obj *optionObj = Tcl_NewStringObj(paramPtr->getOpt.name, -1); - if (InvokeTclMethod(rcPtr, "cget", optionObj, NULL, &resObj) != TCL_OK) { + if (InvokeTclMethod(rcPtr, "cget", optionObj, NULL, &resObj)!=TCL_OK){ ForwardSetObjError(paramPtr, resObj); } else { - Tcl_DStringAppend(paramPtr->getOpt.value, TclGetString(resObj),-1); + Tcl_DStringAppend(paramPtr->getOpt.value, + TclGetString(resObj), -1); } break; } @@ -2390,7 +2393,7 @@ ForwardProc( * Retrieve all options. */ - if (InvokeTclMethod(rcPtr, "cgetall", NULL, NULL, &resObj) != TCL_OK) { + if (InvokeTclMethod(rcPtr, "cgetall", NULL, NULL, &resObj) != TCL_OK){ ForwardSetObjError(paramPtr, resObj); } else { /* @@ -2399,7 +2402,7 @@ ForwardProc( */ int listc; - Tcl_Obj** listv; + Tcl_Obj **listv; if (Tcl_ListObjGetElements(interp, resObj, &listc, &listv) != TCL_OK) { @@ -2431,6 +2434,7 @@ ForwardProc( /* * Bad operation code. */ + Tcl_Panic("Bad operation code in ForwardProc"); break; } |