nsf / generic

nsfStack.c

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Thursday 19 Jan 2012
12:48 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

- alias reform: instead of calling first an alias with a stack frame followed by the dispatched of the aliased cmd, resolve aliases internally in dispatch. This has the advantage that we do not have to ignore the "transparent" stack frame in some sitations, and we have much less problems with the names of the aliased cmds (e.g. objects) in the introspection methods. Additionally, several problem cases disappeared from the regression test cases. In addition, the new approach is faster. - eliminating obsolete flag NSF_CSC_CALL_IS_TRANSPARENT

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Tuesday 06 Dec 2011
12:32 am

ssoberni <stefan.sobernig@wu-wien.ac.at>

- generic/nsfStack.c, CscFinish(): Without further restricting object deletion based on activation counts, very-late method dispatches during the "physical" clean-up stage (e.g., a dispatch issued by an unset variable trace script) lead to premature object and class deletions, violating the total deletion order used in ObjectSystemsCleanup().

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Saturday 12 Nov 2011
6:39 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

nsf.c, nsf.h, nsfStack.c, nx.tcl, tcl-cool.tcl, xotcl2.tcl - fix spelling in comments - strip unneeded space

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Monday 24 Oct 2011
2:33 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

- update copyright notices with MIT licens from OSI (http://www.opensource.org/licenses/MIT)

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Monday 19 Sep 2011
11:22 am

Gustaf Neumann <neumann@wu-wien.ac.at>

- provide more hints for gcc

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Thursday 08 Sep 2011
12:50 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

- minor optimization

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Saturday 03 Sep 2011
1:40 am

Gustaf Neumann <neumann@wu-wien.ac.at>

- minor optimizations

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Friday 02 Sep 2011
7:20 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

- minor optimizations

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Thursday 25 Aug 2011
1:15 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

* added support for calling private methods via -local and filters * extended regression test for private + filters

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Wednesday 24 Aug 2011
2:49 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

* per-thread MEM_COUNT tested with aolserver/naviserver * removed INTERP macros for MEM_COUNT (since we use now per-thread tables instead of per-interp tables as in the first implementation)

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Friday 12 Aug 2011
2:01 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

- nx.tcl * renamed "attribute" to "property" * renamed "defaultAttributeCallProtection" to "defaultPropertyCallProtection" * renamed "nx::Attribute" to ""nx::VariableSlot" * renamed "BootStrapAttributeSlot" to "BootStrapVariableSlot" * renamed "createBootstrapAttributeSlots" to "createBootstrapVariableSlots" * removed method attributes * implemented old attributes definition in xotcl2 as method "parameter"

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Saturday 06 Aug 2011
4:28 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

- nsf.c: * enabled MEM_COUNT debugging for multi-threaded apps. We collect the MEM_COUNT statistics now per interp. Therefore, we have to pass around "interp" in case where alloc() and free() or refCount functions are used (textually, a big change) * verified, that nsf runs clean in aolserver/naviserver (all INCR_REF_COUNTS all balanced)

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Sunday 31 Jul 2011
9:02 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

nsf.c: * provide debug-refcounts for "class.activationCount" * provide debug-refcounts for "object.activationCount" * deactivated CHECK_ACTIVATION_COUNTS oer default * tested refcounts with Tcl 8.6b2, found bug in Tcl 8.6b2 and submitted patch to sourceforge

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Thursday 28 Jul 2011
9:30 am

Gustaf Neumann <neumann@wu-wien.ac.at>

- nsf.c: * refined refcounting debugging * fixed various refcounting bugs, especially in error cases. * added explicit INCR_REF_COUNTs on Tcl_Objs with 0-refCount to ease debugging

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Thursday 21 Jul 2011
1:20 pm

ssoberni <stefan.sobernig@wu-wien.ac.at>

- generic/nsfStack.c / CallStackPopAll(): When cleaning up the unstacked CSC entries, the borderline case of just 1 CSC entry led to a dangling pointer (and so a crash). This was caused by the unhandled side effect of CscListRemove() (or, rather, NsfClassListUnlink()) which updates the interp's cscList pointer in the 1-list-entry scenario. By using a copy of this pointer in the cleanup loop, this scoped pointer became dangling. To reproduce the issue (prior to this commit), run for example:

Object create o { exit -1 }

I extended the CscListRemove() interface for a conditional out

parameter, to be used for tracking changes to the interp's cscList

pointer.

- generic/nsf.c: Modified the occurrences of CscListRemove() to

reflect its extended interface.

- generic/nsfStack.c: Extended the documentation snippets of the

CscList* operations accordingly.

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Sunday 17 Jul 2011
1:50 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

- nsf.c: improve performance (branch prediction) by using likely/unlikely macros for gcc

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Friday 15 Jul 2011
7:08 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

- make sure to place declarations only at the begin of a block - minor code cleanup

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5:23 pm

ssoberni <stefan.sobernig@wu-wien.ac.at>

- generic/nsf.c: Fixed [current callingmethod] for submethods (i.e., reporting submethods as calling methods, including their methodpath). Added tests covering the fix (see tests/submethods.test). - generic/nsfStack.c (CallStackMethodPath): Re-arranged the traversal slightly, to escape non-ensemble frames (eval CFRAMEs) as parts of the method path. Added test (see tests/submethods.test). - library/nx/nx.tcl: Corrected the impl of Ensemble->defaultmethod() (e.g., used self instead of current) - tests/disposition.test: Fixed test cases turned out to be false positives. Before the fixes, [current methodpath] gave non-empty results for simple object aliases.

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Monday 11 Jul 2011
10:34 am

Gustaf Neumann <neumann@wu-wien.ac.at>

- adding spaces after comma in argument lists

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Friday 08 Jul 2011
12:25 pm

ssoberni <stefan.sobernig@wu-wien.ac.at>

- generic/nsf.c / NsfOConfigureMethod(): Configure adds frames to its callstack context, however, so far the callstack modifications have not honoured the fact that configure() can be called from uplevel'ed call sites. The callstack context resulting from a prior uplevel was erased by the call frame introductions. As a consequence, parameter-dispatched methods found themselves in a wrong variable frame context. The suggested patch adds uplevel awareness in the most generic way I could think of. The entire test suite runs against the patched NsfOConfigureMethod(). However, I might be missing unwanted consequences for untested cases ... we need to think of further test scenarios ...

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Wednesday 06 Jul 2011
5:54 pm

ssoberni <stefan.sobernig@wu-wien.ac.at>

Squashed commit of the following:

commit 901efa4cb4e1bbd55a8c47ebb79f4c7b4b397668

Author: ssoberni <stefan.sobernig@wu-wien.ac.at>

Date: Wed Jul 6 17:51:38 2011 +0200

- generic/nsf.c: Provide the [current class] context to submethods

- tests/disposition.test: Added some tests on the interaction of

INACTIVE frames (mixin, filter) and submethods

- tests/submethods.test: Testing [current class] context for submethods

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Tuesday 05 Jul 2011
7:19 pm

ssoberni <stefan.sobernig@wu-wien.ac.at>

- generic/nsfStack.c: Revised my former patch for traversing callstacks under ensemle dispatches. We fixed the traversal-ending gateway expression; and added transparency for INACTIVE frames when assembling the method path. Added further tests, remain to be completed ...

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9:42 am

Gustaf Neumann <neumann@wu-wien.ac.at>

Merge branch '2.0.0-develop' of ssh://alice.wu-wien.ac.at/usr/local/src/git-repo/xotcl into 2.0.0-develop

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9:41 am

Gustaf Neumann <neumann@wu-wien.ac.at>

- preliminary fix for volatile called through redsidual args - new regression test file volatile.test

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Monday 04 Jul 2011
9:04 pm

ssoberni <stefan.sobernig@wu-wien.ac.at>

- nsfStack.c / CallStackMethodPath(): Providing a fix for reporting method paths correctly when dispatching to ensembles from alias parameters. Prior to that fix, the intermediate (and inactive) CMETHOD frame wrapping configure() calls caused [current methodpath]s to report empty string elements. Added some test cases. - nsf.c / ObjectDispatch(), DispatchUnknownMethod(): When testing objects as alias parameter targets, I found cases when the default (C-level) unknown handler was invoked upon. The result was an unknown message which reported the delegator object as "unknown" method! This was due to injecting the delegator object into the argument vector at position 0, subsequently used by the C-level unknown handler. First, I tried to make the C-level unknown handler aware of the ensemble call context (by funneling through the CSC and frame flags) but this turned out to be complicated to achieve this simple task. As an alternative, I suggest the following patch: The first argument in unknown calls is treated as a list, and dependening on the call context (ensemble vs. non-ensemble) contains all the necessary call data. For ensemble methods, it is the delegator object, the entire method path (as returned by [current methodpath]), and the actual unknown selector. The default C-level handler, treating the call info as list, resorts to reporting the last element of the list which is always the unknown selector. Custom (ensemble-level, application-level) unknown handler can wrap and further process the information as necessary. To demonstrate the usefulness, I rewrote EnsembleObject->unknown() accordingly. I checked for Tcl_Obj leaks. - Added some tests on objects as targets of alias object parameter. To be continued.

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Friday 25 Mar 2011
2:51 pm

Gustaf A. Neumann <neumann@Gustaf-A-Neumanns-iMac.local>

* The newest trunk version of Tcl in fossil has TclStackFree() and TclStackAlloc() removed We had to substitute this functions. Unfortunately, the lifetime of the strack structures has changed, so we had shuffle some interals around.

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Monday 28 Feb 2011
10:53 am

Gustaf A. Neumann <neumann@Gustaf-A-Neumanns-iMac.local>

DTrace: * added "nsf::configure dtrace on|off" for skipping package initialization (to be handled in D script) * make compliation clean

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Saturday 26 Feb 2011
5:46 pm

Gustaf Neumann <neumann@wu-wien.ac.at>

- dtrace improvements: * track objects in method invocations * trace result codes in method-return * add some dtrace sample scripts

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Friday 25 Feb 2011
2:38 pm

Gustaf A. Neumann <neumann@Gustaf-A-Neumanns-iMac.local>

- first steps towards DTRACE support

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Tuesday 15 Feb 2011
10:23 am

Gustaf A. Neumann <neumann@Gustaf-A-Neumanns-iMac.local>

- cleanup and documentation of nsf-specific interp state - nsf::configure: added an option "profile on|off" (per default off)

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